Format options
--------------
--l [label] : Give a volume label, up to 256 unicode name.
+-l [label] : Give a volume label, up to 512 unicode name.
-a [0 or 1] : Split start location of each area for heap-based allocation.
1 is set by default, which performs this.
-o [int] : Set overprovision ratio in percent over volume size.
-z [int] : Set the number of sections per zone.
1 is set by default.
-e [str] : Set basic extension list. e.g. "mp3,gif,mov"
+-t [0 or 1] : Disable discard command or not.
+ 1 is set by default, which conducts discard.
================================================================================
DESIGN
#include "f2fs.h"
#include "node.h"
#include "segment.h"
+#include <trace/events/f2fs.h>
static struct kmem_cache *orphan_entry_slab;
static struct kmem_cache *inode_entry_slab;
cond_resched();
goto repeat;
}
- if (f2fs_readpage(sbi, page, index, READ_SYNC)) {
+ if (PageUptodate(page))
+ goto out;
+
+ if (f2fs_readpage(sbi, page, index, READ_SYNC))
+ goto repeat;
+
+ lock_page(page);
+ if (page->mapping != mapping) {
f2fs_put_page(page, 1);
goto repeat;
}
+out:
mark_page_accessed(page);
-
- /* We do not allow returning an errorneous page */
return page;
}
*/
static void block_operations(struct f2fs_sb_info *sbi)
{
- int t;
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = LONG_MAX,
.for_reclaim = 0,
};
+ struct blk_plug plug;
- /* Stop renaming operation */
- mutex_lock_op(sbi, RENAME);
- mutex_lock_op(sbi, DENTRY_OPS);
+ blk_start_plug(&plug);
-retry_dents:
- /* write all the dirty dentry pages */
- sync_dirty_dir_inodes(sbi);
+retry_flush_dents:
+ mutex_lock_all(sbi);
- mutex_lock_op(sbi, DATA_WRITE);
+ /* write all the dirty dentry pages */
if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
- mutex_unlock_op(sbi, DATA_WRITE);
- goto retry_dents;
+ mutex_unlock_all(sbi);
+ sync_dirty_dir_inodes(sbi);
+ goto retry_flush_dents;
}
- /* block all the operations */
- for (t = DATA_NEW; t <= NODE_TRUNC; t++)
- mutex_lock_op(sbi, t);
-
- mutex_lock(&sbi->write_inode);
-
/*
* POR: we should ensure that there is no dirty node pages
* until finishing nat/sit flush.
*/
-retry:
- sync_node_pages(sbi, 0, &wbc);
-
- mutex_lock_op(sbi, NODE_WRITE);
+retry_flush_nodes:
+ mutex_lock(&sbi->node_write);
if (get_pages(sbi, F2FS_DIRTY_NODES)) {
- mutex_unlock_op(sbi, NODE_WRITE);
- goto retry;
+ mutex_unlock(&sbi->node_write);
+ sync_node_pages(sbi, 0, &wbc);
+ goto retry_flush_nodes;
}
- mutex_unlock(&sbi->write_inode);
+ blk_finish_plug(&plug);
}
static void unblock_operations(struct f2fs_sb_info *sbi)
{
- int t;
- for (t = NODE_WRITE; t >= RENAME; t--)
- mutex_unlock_op(sbi, t);
+ mutex_unlock(&sbi->node_write);
+ mutex_unlock_all(sbi);
}
static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
unsigned long long ckpt_ver;
+ trace_f2fs_write_checkpoint(sbi->sb, is_umount, "start block_ops");
+
mutex_lock(&sbi->cp_mutex);
block_operations(sbi);
+ trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish block_ops");
+
f2fs_submit_bio(sbi, DATA, true);
f2fs_submit_bio(sbi, NODE, true);
f2fs_submit_bio(sbi, META, true);
flush_nat_entries(sbi);
flush_sit_entries(sbi);
- reset_victim_segmap(sbi);
-
/* unlock all the fs_lock[] in do_checkpoint() */
do_checkpoint(sbi, is_umount);
unblock_operations(sbi);
mutex_unlock(&sbi->cp_mutex);
+
+ trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish checkpoint");
}
void init_orphan_info(struct f2fs_sb_info *sbi)
#include "f2fs.h"
#include "node.h"
#include "segment.h"
+#include <trace/events/f2fs.h>
/*
* Lock ordering for the change of data block address:
if (!inc_valid_block_count(sbi, dn->inode, 1))
return -ENOSPC;
+ trace_f2fs_reserve_new_block(dn->inode, dn->nid, dn->ofs_in_node);
+
__set_data_blkaddr(dn, NEW_ADDR);
dn->data_blkaddr = NEW_ADDR;
sync_inode_page(dn);
goto end_update;
}
- /* Frone merge */
+ /* Front merge */
if (fofs == start_fofs - 1 && blk_addr == start_blkaddr - 1) {
fi->ext.fofs--;
fi->ext.blk_addr--;
return;
}
-struct page *find_data_page(struct inode *inode, pgoff_t index)
+struct page *find_data_page(struct inode *inode, pgoff_t index, bool sync)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct address_space *mapping = inode->i_mapping;
f2fs_put_page(page, 0);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, index, RDONLY_NODE);
+ err = get_dnode_of_data(&dn, index, LOOKUP_NODE);
if (err)
return ERR_PTR(err);
f2fs_put_dnode(&dn);
if (!page)
return ERR_PTR(-ENOMEM);
- err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
- if (err) {
- f2fs_put_page(page, 1);
- return ERR_PTR(err);
+ if (PageUptodate(page)) {
+ unlock_page(page);
+ return page;
+ }
+
+ err = f2fs_readpage(sbi, page, dn.data_blkaddr,
+ sync ? READ_SYNC : READA);
+ if (sync) {
+ wait_on_page_locked(page);
+ if (!PageUptodate(page)) {
+ f2fs_put_page(page, 0);
+ return ERR_PTR(-EIO);
+ }
}
- unlock_page(page);
return page;
}
int err;
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, index, RDONLY_NODE);
+ err = get_dnode_of_data(&dn, index, LOOKUP_NODE);
if (err)
return ERR_PTR(err);
f2fs_put_dnode(&dn);
if (dn.data_blkaddr == NULL_ADDR)
return ERR_PTR(-ENOENT);
-
+repeat:
page = grab_cache_page(mapping, index);
if (!page)
return ERR_PTR(-ENOMEM);
BUG_ON(dn.data_blkaddr == NULL_ADDR);
err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
- if (err) {
- f2fs_put_page(page, 1);
+ if (err)
return ERR_PTR(err);
+
+ lock_page(page);
+ if (!PageUptodate(page)) {
+ f2fs_put_page(page, 1);
+ return ERR_PTR(-EIO);
+ }
+ if (page->mapping != mapping) {
+ f2fs_put_page(page, 1);
+ goto repeat;
}
return page;
}
/*
* Caller ensures that this data page is never allocated.
* A new zero-filled data page is allocated in the page cache.
+ *
+ * Also, caller should grab and release a mutex by calling mutex_lock_op() and
+ * mutex_unlock_op().
*/
struct page *get_new_data_page(struct inode *inode, pgoff_t index,
bool new_i_size)
int err;
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, index, 0);
+ err = get_dnode_of_data(&dn, index, ALLOC_NODE);
if (err)
return ERR_PTR(err);
}
}
f2fs_put_dnode(&dn);
-
+repeat:
page = grab_cache_page(mapping, index);
if (!page)
return ERR_PTR(-ENOMEM);
if (dn.data_blkaddr == NEW_ADDR) {
zero_user_segment(page, 0, PAGE_CACHE_SIZE);
+ SetPageUptodate(page);
} else {
err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
- if (err) {
- f2fs_put_page(page, 1);
+ if (err)
return ERR_PTR(err);
+ lock_page(page);
+ if (!PageUptodate(page)) {
+ f2fs_put_page(page, 1);
+ return ERR_PTR(-EIO);
+ }
+ if (page->mapping != mapping) {
+ f2fs_put_page(page, 1);
+ goto repeat;
}
}
- SetPageUptodate(page);
if (new_i_size &&
i_size_read(inode) < ((index + 1) << PAGE_CACHE_SHIFT)) {
/*
* Fill the locked page with data located in the block address.
- * Read operation is synchronous, and caller must unlock the page.
+ * Return unlocked page.
*/
int f2fs_readpage(struct f2fs_sb_info *sbi, struct page *page,
block_t blk_addr, int type)
{
struct block_device *bdev = sbi->sb->s_bdev;
- bool sync = (type == READ_SYNC);
struct bio *bio;
- /* This page can be already read by other threads */
- if (PageUptodate(page)) {
- if (!sync)
- unlock_page(page);
- return 0;
- }
+ trace_f2fs_readpage(page, blk_addr, type);
down_read(&sbi->bio_sem);
kfree(bio->bi_private);
bio_put(bio);
up_read(&sbi->bio_sem);
+ f2fs_put_page(page, 1);
return -EFAULT;
}
submit_bio(type, bio);
up_read(&sbi->bio_sem);
-
- /* wait for read completion if sync */
- if (sync) {
- lock_page(page);
- if (PageError(page))
- return -EIO;
- }
return 0;
}
/* Get the page offset from the block offset(iblock) */
pgofs = (pgoff_t)(iblock >> (PAGE_CACHE_SHIFT - blkbits));
- if (check_extent_cache(inode, pgofs, bh_result))
+ if (check_extent_cache(inode, pgofs, bh_result)) {
+ trace_f2fs_get_data_block(inode, iblock, bh_result, 0);
return 0;
+ }
/* When reading holes, we need its node page */
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, pgofs, RDONLY_NODE);
- if (err)
+ err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA);
+ if (err) {
+ trace_f2fs_get_data_block(inode, iblock, bh_result, err);
return (err == -ENOENT) ? 0 : err;
+ }
/* It does not support data allocation */
BUG_ON(create);
bh_result->b_size = (i << blkbits);
}
f2fs_put_dnode(&dn);
+ trace_f2fs_get_data_block(inode, iblock, bh_result, 0);
return 0;
}
int do_write_data_page(struct page *page)
{
struct inode *inode = page->mapping->host;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
block_t old_blk_addr, new_blk_addr;
struct dnode_of_data dn;
int err = 0;
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, page->index, RDONLY_NODE);
+ err = get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
if (err)
return err;
write_data_page(inode, page, &dn,
old_blk_addr, &new_blk_addr);
update_extent_cache(new_blk_addr, &dn);
- F2FS_I(inode)->data_version =
- le64_to_cpu(F2FS_CKPT(sbi)->checkpoint_ver);
}
out_writepage:
f2fs_put_dnode(&dn);
const pgoff_t end_index = ((unsigned long long) i_size)
>> PAGE_CACHE_SHIFT;
unsigned offset;
+ bool need_balance_fs = false;
int err = 0;
if (page->index < end_index)
- goto out;
+ goto write;
/*
* If the offset is out-of-range of file size,
dec_page_count(sbi, F2FS_DIRTY_DENTS);
inode_dec_dirty_dents(inode);
}
- goto unlock_out;
+ goto out;
}
zero_user_segment(page, offset, PAGE_CACHE_SIZE);
-out:
- if (sbi->por_doing)
- goto redirty_out;
-
- if (wbc->for_reclaim && !S_ISDIR(inode->i_mode) && !is_cold_data(page))
+write:
+ if (sbi->por_doing) {
+ err = AOP_WRITEPAGE_ACTIVATE;
goto redirty_out;
+ }
- mutex_lock_op(sbi, DATA_WRITE);
+ /* Dentry blocks are controlled by checkpoint */
if (S_ISDIR(inode->i_mode)) {
dec_page_count(sbi, F2FS_DIRTY_DENTS);
inode_dec_dirty_dents(inode);
+ err = do_write_data_page(page);
+ } else {
+ int ilock = mutex_lock_op(sbi);
+ err = do_write_data_page(page);
+ mutex_unlock_op(sbi, ilock);
+ need_balance_fs = true;
}
- err = do_write_data_page(page);
- if (err && err != -ENOENT) {
- wbc->pages_skipped++;
- set_page_dirty(page);
- }
- mutex_unlock_op(sbi, DATA_WRITE);
+ if (err == -ENOENT)
+ goto out;
+ else if (err)
+ goto redirty_out;
if (wbc->for_reclaim)
f2fs_submit_bio(sbi, DATA, true);
- if (err == -ENOENT)
- goto unlock_out;
-
clear_cold_data(page);
+out:
unlock_page(page);
-
- if (!wbc->for_reclaim && !S_ISDIR(inode->i_mode))
+ if (need_balance_fs)
f2fs_balance_fs(sbi);
return 0;
-unlock_out:
- unlock_page(page);
- return (err == -ENOENT) ? 0 : err;
-
redirty_out:
wbc->pages_skipped++;
set_page_dirty(page);
- return AOP_WRITEPAGE_ACTIVATE;
+ return err;
}
#define MAX_DESIRED_PAGES_WP 4096
{
struct inode *inode = mapping->host;
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ bool locked = false;
int ret;
long excess_nrtw = 0, desired_nrtw;
+ /* deal with chardevs and other special file */
+ if (!mapping->a_ops->writepage)
+ return 0;
+
if (wbc->nr_to_write < MAX_DESIRED_PAGES_WP) {
desired_nrtw = MAX_DESIRED_PAGES_WP;
excess_nrtw = desired_nrtw - wbc->nr_to_write;
wbc->nr_to_write = desired_nrtw;
}
- if (!S_ISDIR(inode->i_mode))
+ if (!S_ISDIR(inode->i_mode)) {
mutex_lock(&sbi->writepages);
+ locked = true;
+ }
ret = write_cache_pages(mapping, wbc, __f2fs_writepage, mapping);
- if (!S_ISDIR(inode->i_mode))
+ if (locked)
mutex_unlock(&sbi->writepages);
f2fs_submit_bio(sbi, DATA, (wbc->sync_mode == WB_SYNC_ALL));
pgoff_t index = ((unsigned long long) pos) >> PAGE_CACHE_SHIFT;
struct dnode_of_data dn;
int err = 0;
+ int ilock;
/* for nobh_write_end */
*fsdata = NULL;
f2fs_balance_fs(sbi);
-
+repeat:
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page)
return -ENOMEM;
*pagep = page;
- mutex_lock_op(sbi, DATA_NEW);
+ ilock = mutex_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, index, 0);
- if (err) {
- mutex_unlock_op(sbi, DATA_NEW);
- f2fs_put_page(page, 1);
- return err;
- }
+ err = get_dnode_of_data(&dn, index, ALLOC_NODE);
+ if (err)
+ goto err;
- if (dn.data_blkaddr == NULL_ADDR) {
+ if (dn.data_blkaddr == NULL_ADDR)
err = reserve_new_block(&dn);
- if (err) {
- f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, DATA_NEW);
- f2fs_put_page(page, 1);
- return err;
- }
- }
+
f2fs_put_dnode(&dn);
+ if (err)
+ goto err;
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
if ((len == PAGE_CACHE_SIZE) || PageUptodate(page))
return 0;
/* Reading beyond i_size is simple: memset to zero */
zero_user_segments(page, 0, start, end, PAGE_CACHE_SIZE);
- return 0;
+ goto out;
}
if (dn.data_blkaddr == NEW_ADDR) {
zero_user_segment(page, 0, PAGE_CACHE_SIZE);
} else {
err = f2fs_readpage(sbi, page, dn.data_blkaddr, READ_SYNC);
- if (err) {
- f2fs_put_page(page, 1);
+ if (err)
return err;
+ lock_page(page);
+ if (!PageUptodate(page)) {
+ f2fs_put_page(page, 1);
+ return -EIO;
+ }
+ if (page->mapping != mapping) {
+ f2fs_put_page(page, 1);
+ goto repeat;
}
}
+out:
SetPageUptodate(page);
clear_cold_data(page);
return 0;
+
+err:
+ mutex_unlock_op(sbi, ilock);
+ f2fs_put_page(page, 1);
+ return err;
}
static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
static int f2fs_release_data_page(struct page *page, gfp_t wait)
{
ClearPagePrivate(page);
- return 0;
+ return 1;
}
static int f2fs_set_data_page_dirty(struct page *page)
#include <linux/fs.h>
#include <linux/backing-dev.h>
-#include <linux/proc_fs.h>
#include <linux/f2fs_fs.h>
#include <linux/blkdev.h>
#include <linux/debugfs.h>
}
}
mutex_unlock(&sit_i->sentry_lock);
- dist = sbi->total_sections * hblks_per_sec * hblks_per_sec / 100;
+ dist = TOTAL_SECS(sbi) * hblks_per_sec * hblks_per_sec / 100;
si->bimodal = bimodal / dist;
if (si->dirty_count)
si->avg_vblocks = total_vblocks / ndirty;
si->base_mem += f2fs_bitmap_size(TOTAL_SEGS(sbi));
si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * TOTAL_SEGS(sbi);
if (sbi->segs_per_sec > 1)
- si->base_mem += sbi->total_sections *
- sizeof(struct sec_entry);
+ si->base_mem += TOTAL_SECS(sbi) * sizeof(struct sec_entry);
si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
/* build free segmap */
si->base_mem += sizeof(struct free_segmap_info);
si->base_mem += f2fs_bitmap_size(TOTAL_SEGS(sbi));
- si->base_mem += f2fs_bitmap_size(sbi->total_sections);
+ si->base_mem += f2fs_bitmap_size(TOTAL_SECS(sbi));
/* build curseg */
si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
/* build dirty segmap */
si->base_mem += sizeof(struct dirty_seglist_info);
si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(TOTAL_SEGS(sbi));
- si->base_mem += 2 * f2fs_bitmap_size(TOTAL_SEGS(sbi));
+ si->base_mem += f2fs_bitmap_size(TOTAL_SECS(sbi));
/* buld nm */
si->base_mem += sizeof(struct f2fs_nm_info);
for (; bidx < end_block; bidx++) {
/* no need to allocate new dentry pages to all the indices */
- dentry_page = find_data_page(dir, bidx);
+ dentry_page = find_data_page(dir, bidx, true);
if (IS_ERR(dentry_page)) {
room = true;
continue;
unsigned int max_depth;
unsigned int level;
+ if (namelen > F2FS_NAME_LEN)
+ return NULL;
+
if (npages == 0)
return NULL;
void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
struct page *page, struct inode *inode)
{
- struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
-
- mutex_lock_op(sbi, DENTRY_OPS);
lock_page(page);
wait_on_page_writeback(page);
de->ino = cpu_to_le32(inode->i_ino);
F2FS_I(inode)->i_pino = dir->i_ino;
f2fs_put_page(page, 1);
- mutex_unlock_op(sbi, DENTRY_OPS);
}
void init_dent_inode(const struct qstr *name, struct page *ipage)
set_page_dirty(ipage);
}
+static int make_empty_dir(struct inode *inode, struct inode *parent)
+{
+ struct page *dentry_page;
+ struct f2fs_dentry_block *dentry_blk;
+ struct f2fs_dir_entry *de;
+ void *kaddr;
+
+ dentry_page = get_new_data_page(inode, 0, true);
+ if (IS_ERR(dentry_page))
+ return PTR_ERR(dentry_page);
+
+ kaddr = kmap_atomic(dentry_page);
+ dentry_blk = (struct f2fs_dentry_block *)kaddr;
+
+ de = &dentry_blk->dentry[0];
+ de->name_len = cpu_to_le16(1);
+ de->hash_code = 0;
+ de->ino = cpu_to_le32(inode->i_ino);
+ memcpy(dentry_blk->filename[0], ".", 1);
+ set_de_type(de, inode);
+
+ de = &dentry_blk->dentry[1];
+ de->hash_code = 0;
+ de->name_len = cpu_to_le16(2);
+ de->ino = cpu_to_le32(parent->i_ino);
+ memcpy(dentry_blk->filename[1], "..", 2);
+ set_de_type(de, inode);
+
+ test_and_set_bit_le(0, &dentry_blk->dentry_bitmap);
+ test_and_set_bit_le(1, &dentry_blk->dentry_bitmap);
+ kunmap_atomic(kaddr);
+
+ set_page_dirty(dentry_page);
+ f2fs_put_page(dentry_page, 1);
+ return 0;
+}
+
static int init_inode_metadata(struct inode *inode,
struct inode *dir, const struct qstr *name)
{
return err;
if (S_ISDIR(inode->i_mode)) {
- err = f2fs_make_empty(inode, dir);
+ err = make_empty_dir(inode, dir);
if (err) {
remove_inode_page(inode);
return err;
}
if (is_inode_flag_set(F2FS_I(inode), FI_INC_LINK)) {
inc_nlink(inode);
- f2fs_write_inode(inode, NULL);
+ update_inode_page(inode);
}
return 0;
}
}
if (need_dir_update)
- f2fs_write_inode(dir, NULL);
+ update_inode_page(dir);
else
mark_inode_dirty(dir);
goto next;
}
+/*
+ * Caller should grab and release a mutex by calling mutex_lock_op() and
+ * mutex_unlock_op().
+ */
int __f2fs_add_link(struct inode *dir, const struct qstr *name, struct inode *inode)
{
unsigned int bit_pos;
f2fs_hash_t dentry_hash;
struct f2fs_dir_entry *de;
unsigned int nbucket, nblock;
- struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
size_t namelen = name->len;
struct page *dentry_page = NULL;
struct f2fs_dentry_block *dentry_blk = NULL;
bidx = dir_block_index(level, (le32_to_cpu(dentry_hash) % nbucket));
for (block = bidx; block <= (bidx + nblock - 1); block++) {
- mutex_lock_op(sbi, DENTRY_OPS);
dentry_page = get_new_data_page(dir, block, true);
- if (IS_ERR(dentry_page)) {
- mutex_unlock_op(sbi, DENTRY_OPS);
+ if (IS_ERR(dentry_page))
return PTR_ERR(dentry_page);
- }
dentry_blk = kmap(dentry_page);
bit_pos = room_for_filename(dentry_blk, slots);
kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
- mutex_unlock_op(sbi, DENTRY_OPS);
}
/* Move to next level to find the empty slot for new dentry */
fail:
kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
- mutex_unlock_op(sbi, DENTRY_OPS);
return err;
}
void *kaddr = page_address(page);
int i;
- mutex_lock_op(sbi, DENTRY_OPS);
-
lock_page(page);
wait_on_page_writeback(page);
if (inode && S_ISDIR(inode->i_mode)) {
drop_nlink(dir);
- f2fs_write_inode(dir, NULL);
+ update_inode_page(dir);
} else {
mark_inode_dirty(dir);
}
drop_nlink(inode);
i_size_write(inode, 0);
}
- f2fs_write_inode(inode, NULL);
+ update_inode_page(inode);
+
if (inode->i_nlink == 0)
add_orphan_inode(sbi, inode->i_ino);
}
inode_dec_dirty_dents(dir);
}
f2fs_put_page(page, 1);
-
- mutex_unlock_op(sbi, DENTRY_OPS);
-}
-
-int f2fs_make_empty(struct inode *inode, struct inode *parent)
-{
- struct page *dentry_page;
- struct f2fs_dentry_block *dentry_blk;
- struct f2fs_dir_entry *de;
- void *kaddr;
-
- dentry_page = get_new_data_page(inode, 0, true);
- if (IS_ERR(dentry_page))
- return PTR_ERR(dentry_page);
-
- kaddr = kmap_atomic(dentry_page);
- dentry_blk = (struct f2fs_dentry_block *)kaddr;
-
- de = &dentry_blk->dentry[0];
- de->name_len = cpu_to_le16(1);
- de->hash_code = f2fs_dentry_hash(".", 1);
- de->ino = cpu_to_le32(inode->i_ino);
- memcpy(dentry_blk->filename[0], ".", 1);
- set_de_type(de, inode);
-
- de = &dentry_blk->dentry[1];
- de->hash_code = f2fs_dentry_hash("..", 2);
- de->name_len = cpu_to_le16(2);
- de->ino = cpu_to_le32(parent->i_ino);
- memcpy(dentry_blk->filename[1], "..", 2);
- set_de_type(de, inode);
-
- test_and_set_bit_le(0, &dentry_blk->dentry_bitmap);
- test_and_set_bit_le(1, &dentry_blk->dentry_bitmap);
- kunmap_atomic(kaddr);
-
- set_page_dirty(dentry_page);
- f2fs_put_page(dentry_page, 1);
- return 0;
}
bool f2fs_empty_dir(struct inode *dir)
* file keeping -1 as its node offset to
* distinguish from index node blocks.
*/
-#define RDONLY_NODE 1 /*
- * specify a read-only mode when getting
- * a node block. 0 is read-write mode.
- * used by get_dnode_of_data().
+enum {
+ ALLOC_NODE, /* allocate a new node page if needed */
+ LOOKUP_NODE, /* look up a node without readahead */
+ LOOKUP_NODE_RA, /*
+ * look up a node with readahead called
+ * by get_datablock_ro.
*/
+};
+
#define F2FS_LINK_MAX 32000 /* maximum link count per file */
/* for in-memory extent cache entry */
* i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
*/
#define FADVISE_COLD_BIT 0x01
+#define FADVISE_CP_BIT 0x02
struct f2fs_inode_info {
struct inode vfs_inode; /* serve a vfs inode */
/* Use below internally in f2fs*/
unsigned long flags; /* use to pass per-file flags */
- unsigned long long data_version;/* latest version of data for fsync */
atomic_t dirty_dents; /* # of dirty dentry pages */
f2fs_hash_t chash; /* hash value of given file name */
unsigned int clevel; /* maximum level of given file name */
struct f2fs_nm_info {
block_t nat_blkaddr; /* base disk address of NAT */
nid_t max_nid; /* maximum possible node ids */
- nid_t init_scan_nid; /* the first nid to be scanned */
nid_t next_scan_nid; /* the next nid to be scanned */
/* NAT cache management */
};
/*
- * FS_LOCK nesting subclasses for the lock validator:
- *
- * The locking order between these classes is
- * RENAME -> DENTRY_OPS -> DATA_WRITE -> DATA_NEW
- * -> DATA_TRUNC -> NODE_WRITE -> NODE_NEW -> NODE_TRUNC
+ * Uses as sbi->fs_lock[NR_GLOBAL_LOCKS].
+ * The checkpoint procedure blocks all the locks in this fs_lock array.
+ * Some FS operations grab free locks, and if there is no free lock,
+ * then wait to grab a lock in a round-robin manner.
*/
-enum lock_type {
- RENAME, /* for renaming operations */
- DENTRY_OPS, /* for directory operations */
- DATA_WRITE, /* for data write */
- DATA_NEW, /* for data allocation */
- DATA_TRUNC, /* for data truncate */
- NODE_NEW, /* for node allocation */
- NODE_TRUNC, /* for node truncate */
- NODE_WRITE, /* for node write */
- NR_LOCK_TYPE,
-};
+#define NR_GLOBAL_LOCKS 8
/*
* The below are the page types of bios used in submti_bio().
/* for checkpoint */
struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
struct inode *meta_inode; /* cache meta blocks */
- struct mutex cp_mutex; /* for checkpoint procedure */
- struct mutex fs_lock[NR_LOCK_TYPE]; /* for blocking FS operations */
- struct mutex write_inode; /* mutex for write inode */
+ struct mutex cp_mutex; /* checkpoint procedure lock */
+ struct mutex fs_lock[NR_GLOBAL_LOCKS]; /* blocking FS operations */
+ struct mutex node_write; /* locking node writes */
struct mutex writepages; /* mutex for writepages() */
+ unsigned char next_lock_num; /* round-robin global locks */
int por_doing; /* recovery is doing or not */
+ int on_build_free_nids; /* build_free_nids is doing */
/* for orphan inode management */
struct list_head orphan_inode_list; /* orphan inode list */
/* for cleaning operations */
struct mutex gc_mutex; /* mutex for GC */
struct f2fs_gc_kthread *gc_thread; /* GC thread */
+ unsigned int cur_victim_sec; /* current victim section num */
/*
* for stat information.
cp->ckpt_flags = cpu_to_le32(ckpt_flags);
}
-static inline void mutex_lock_op(struct f2fs_sb_info *sbi, enum lock_type t)
+static inline void mutex_lock_all(struct f2fs_sb_info *sbi)
{
- mutex_lock_nested(&sbi->fs_lock[t], t);
+ int i = 0;
+ for (; i < NR_GLOBAL_LOCKS; i++)
+ mutex_lock(&sbi->fs_lock[i]);
}
-static inline void mutex_unlock_op(struct f2fs_sb_info *sbi, enum lock_type t)
+static inline void mutex_unlock_all(struct f2fs_sb_info *sbi)
{
- mutex_unlock(&sbi->fs_lock[t]);
+ int i = 0;
+ for (; i < NR_GLOBAL_LOCKS; i++)
+ mutex_unlock(&sbi->fs_lock[i]);
+}
+
+static inline int mutex_lock_op(struct f2fs_sb_info *sbi)
+{
+ unsigned char next_lock = sbi->next_lock_num % NR_GLOBAL_LOCKS;
+ int i = 0;
+
+ for (; i < NR_GLOBAL_LOCKS; i++)
+ if (mutex_trylock(&sbi->fs_lock[i]))
+ return i;
+
+ mutex_lock(&sbi->fs_lock[next_lock]);
+ sbi->next_lock_num++;
+ return next_lock;
+}
+
+static inline void mutex_unlock_op(struct f2fs_sb_info *sbi, int ilock)
+{
+ if (ilock < 0)
+ return;
+ BUG_ON(ilock >= NR_GLOBAL_LOCKS);
+ mutex_unlock(&sbi->fs_lock[ilock]);
}
/*
* Check whether the given nid is within node id range.
*/
-static inline void check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
+static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
{
- BUG_ON((nid >= NM_I(sbi)->max_nid));
+ WARN_ON((nid >= NM_I(sbi)->max_nid));
+ if (nid >= NM_I(sbi)->max_nid)
+ return -EINVAL;
+ return 0;
}
#define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
/* used for f2fs_inode_info->flags */
enum {
FI_NEW_INODE, /* indicate newly allocated inode */
- FI_NEED_CP, /* need to do checkpoint during fsync */
FI_INC_LINK, /* need to increment i_nlink */
FI_ACL_MODE, /* indicate acl mode */
FI_NO_ALLOC, /* should not allocate any blocks */
void f2fs_set_inode_flags(struct inode *);
struct inode *f2fs_iget(struct super_block *, unsigned long);
void update_inode(struct inode *, struct page *);
+int update_inode_page(struct inode *);
int f2fs_write_inode(struct inode *, struct writeback_control *);
void f2fs_evict_inode(struct inode *);
int, unsigned int, int);
void flush_sit_entries(struct f2fs_sb_info *);
int build_segment_manager(struct f2fs_sb_info *);
-void reset_victim_segmap(struct f2fs_sb_info *);
void destroy_segment_manager(struct f2fs_sb_info *);
/*
*/
int reserve_new_block(struct dnode_of_data *);
void update_extent_cache(block_t, struct dnode_of_data *);
-struct page *find_data_page(struct inode *, pgoff_t);
+struct page *find_data_page(struct inode *, pgoff_t, bool);
struct page *get_lock_data_page(struct inode *, pgoff_t);
struct page *get_new_data_page(struct inode *, pgoff_t, bool);
int f2fs_readpage(struct f2fs_sb_info *, struct page *, block_t, int);
/*
* recovery.c
*/
-void recover_fsync_data(struct f2fs_sb_info *);
+int recover_fsync_data(struct f2fs_sb_info *);
bool space_for_roll_forward(struct f2fs_sb_info *);
/*
#include <linux/stat.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
+#include <linux/blkdev.h>
#include <linux/falloc.h>
#include <linux/types.h>
#include <linux/compat.h>
#include "segment.h"
#include "xattr.h"
#include "acl.h"
+#include <trace/events/f2fs.h>
static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
struct vm_fault *vmf)
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
block_t old_blk_addr;
struct dnode_of_data dn;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
sb_start_pagefault(inode->i_sb);
- mutex_lock_op(sbi, DATA_NEW);
-
/* block allocation */
+ ilock = mutex_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, page->index, 0);
+ err = get_dnode_of_data(&dn, page->index, ALLOC_NODE);
if (err) {
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
goto out;
}
err = reserve_new_block(&dn);
if (err) {
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
goto out;
}
}
f2fs_put_dnode(&dn);
-
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
lock_page(page);
if (page->mapping != inode->i_mapping ||
.remap_pages = generic_file_remap_pages,
};
-static int need_to_sync_dir(struct f2fs_sb_info *sbi, struct inode *inode)
-{
- struct dentry *dentry;
- nid_t pino;
-
- inode = igrab(inode);
- dentry = d_find_any_alias(inode);
- if (!dentry) {
- iput(inode);
- return 0;
- }
- pino = dentry->d_parent->d_inode->i_ino;
- dput(dentry);
- iput(inode);
- return !is_checkpointed_node(sbi, pino);
-}
-
int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
{
struct inode *inode = file->f_mapping->host;
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- unsigned long long cur_version;
int ret = 0;
bool need_cp = false;
struct writeback_control wbc = {
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
+ trace_f2fs_sync_file_enter(inode);
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret)
+ if (ret) {
+ trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
+ }
/* guarantee free sections for fsync */
f2fs_balance_fs(sbi);
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
goto out;
- mutex_lock(&sbi->cp_mutex);
- cur_version = le64_to_cpu(F2FS_CKPT(sbi)->checkpoint_ver);
- mutex_unlock(&sbi->cp_mutex);
-
- if (F2FS_I(inode)->data_version != cur_version &&
- !(inode->i_state & I_DIRTY))
- goto out;
- F2FS_I(inode)->data_version--;
-
if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
need_cp = true;
- else if (is_inode_flag_set(F2FS_I(inode), FI_NEED_CP))
+ else if (is_cp_file(inode))
need_cp = true;
else if (!space_for_roll_forward(sbi))
need_cp = true;
- else if (need_to_sync_dir(sbi, inode))
+ else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
need_cp = true;
if (need_cp) {
/* all the dirty node pages should be flushed for POR */
ret = f2fs_sync_fs(inode->i_sb, 1);
- clear_inode_flag(F2FS_I(inode), FI_NEED_CP);
} else {
/* if there is no written node page, write its inode page */
while (!sync_node_pages(sbi, inode->i_ino, &wbc)) {
}
filemap_fdatawait_range(sbi->node_inode->i_mapping,
0, LONG_MAX);
+ ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
}
out:
mutex_unlock(&inode->i_mutex);
+ trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
}
sync_inode_page(dn);
}
dn->ofs_in_node = ofs;
+
+ trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
+ dn->ofs_in_node, nr_free);
return nr_free;
}
if (!offset)
return;
- page = find_data_page(inode, from >> PAGE_CACHE_SHIFT);
+ page = find_data_page(inode, from >> PAGE_CACHE_SHIFT, false);
if (IS_ERR(page))
return;
lock_page(page);
+ if (page->mapping != inode->i_mapping) {
+ f2fs_put_page(page, 1);
+ return;
+ }
wait_on_page_writeback(page);
zero_user(page, offset, PAGE_CACHE_SIZE - offset);
set_page_dirty(page);
unsigned int blocksize = inode->i_sb->s_blocksize;
struct dnode_of_data dn;
pgoff_t free_from;
- int count = 0;
+ int count = 0, ilock = -1;
int err;
+ trace_f2fs_truncate_blocks_enter(inode, from);
+
free_from = (pgoff_t)
((from + blocksize - 1) >> (sbi->log_blocksize));
- mutex_lock_op(sbi, DATA_TRUNC);
-
+ ilock = mutex_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, free_from, RDONLY_NODE);
+ err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);
if (err) {
if (err == -ENOENT)
goto free_next;
- mutex_unlock_op(sbi, DATA_TRUNC);
+ mutex_unlock_op(sbi, ilock);
+ trace_f2fs_truncate_blocks_exit(inode, err);
return err;
}
count -= dn.ofs_in_node;
BUG_ON(count < 0);
+
if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
truncate_data_blocks_range(&dn, count);
free_from += count;
f2fs_put_dnode(&dn);
free_next:
err = truncate_inode_blocks(inode, free_from);
- mutex_unlock_op(sbi, DATA_TRUNC);
+ mutex_unlock_op(sbi, ilock);
/* lastly zero out the first data page */
truncate_partial_data_page(inode, from);
+ trace_f2fs_truncate_blocks_exit(inode, err);
return err;
}
S_ISLNK(inode->i_mode)))
return;
+ trace_f2fs_truncate(inode);
+
if (!truncate_blocks(inode, i_size_read(inode))) {
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct page *page;
+ int ilock;
if (!len)
return;
f2fs_balance_fs(sbi);
- mutex_lock_op(sbi, DATA_NEW);
+ ilock = mutex_lock_op(sbi);
page = get_new_data_page(inode, index, false);
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
if (!IS_ERR(page)) {
wait_on_page_writeback(page);
for (index = pg_start; index < pg_end; index++) {
struct dnode_of_data dn;
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-
- f2fs_balance_fs(sbi);
- mutex_lock_op(sbi, DATA_TRUNC);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, index, RDONLY_NODE);
+ err = get_dnode_of_data(&dn, index, LOOKUP_NODE);
if (err) {
- mutex_unlock_op(sbi, DATA_TRUNC);
if (err == -ENOENT)
continue;
return err;
if (dn.data_blkaddr != NULL_ADDR)
truncate_data_blocks_range(&dn, 1);
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, DATA_TRUNC);
}
return 0;
}
if (pg_start < pg_end) {
struct address_space *mapping = inode->i_mapping;
loff_t blk_start, blk_end;
+ struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ int ilock;
+
+ f2fs_balance_fs(sbi);
blk_start = pg_start << PAGE_CACHE_SHIFT;
blk_end = pg_end << PAGE_CACHE_SHIFT;
truncate_inode_pages_range(mapping, blk_start,
blk_end - 1);
+
+ ilock = mutex_lock_op(sbi);
ret = truncate_hole(inode, pg_start, pg_end);
+ mutex_unlock_op(sbi, ilock);
}
}
for (index = pg_start; index <= pg_end; index++) {
struct dnode_of_data dn;
+ int ilock;
- mutex_lock_op(sbi, DATA_NEW);
-
+ ilock = mutex_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- ret = get_dnode_of_data(&dn, index, 0);
+ ret = get_dnode_of_data(&dn, index, ALLOC_NODE);
if (ret) {
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
break;
}
ret = reserve_new_block(&dn);
if (ret) {
f2fs_put_dnode(&dn);
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
break;
}
}
f2fs_put_dnode(&dn);
-
- mutex_unlock_op(sbi, DATA_NEW);
+ mutex_unlock_op(sbi, ilock);
if (pg_start == pg_end)
new_size = offset + len;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
}
+ trace_f2fs_fallocate(inode, mode, offset, len, ret);
return ret;
}
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/backing-dev.h>
-#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/f2fs_fs.h>
#include <linux/kthread.h>
#include "node.h"
#include "segment.h"
#include "gc.h"
+#include <trace/events/f2fs.h>
static struct kmem_cache *winode_slab;
/* if return value is not zero, no victim was selected */
if (f2fs_gc(sbi))
wait_ms = GC_THREAD_NOGC_SLEEP_TIME;
- else if (wait_ms == GC_THREAD_NOGC_SLEEP_TIME)
- wait_ms = GC_THREAD_MAX_SLEEP_TIME;
-
} while (!kthread_should_stop());
return 0;
}
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
- if (p->alloc_mode) {
+ if (p->alloc_mode == SSR) {
p->gc_mode = GC_GREEDY;
p->dirty_segmap = dirty_i->dirty_segmap[type];
p->ofs_unit = 1;
static unsigned int check_bg_victims(struct f2fs_sb_info *sbi)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
- unsigned int segno;
+ unsigned int hint = 0;
+ unsigned int secno;
/*
* If the gc_type is FG_GC, we can select victim segments
* selected by background GC before.
* Those segments guarantee they have small valid blocks.
*/
- segno = find_next_bit(dirty_i->victim_segmap[BG_GC],
- TOTAL_SEGS(sbi), 0);
- if (segno < TOTAL_SEGS(sbi)) {
- clear_bit(segno, dirty_i->victim_segmap[BG_GC]);
- return segno;
+next:
+ secno = find_next_bit(dirty_i->victim_secmap, TOTAL_SECS(sbi), hint++);
+ if (secno < TOTAL_SECS(sbi)) {
+ if (sec_usage_check(sbi, secno))
+ goto next;
+ clear_bit(secno, dirty_i->victim_secmap);
+ return secno * sbi->segs_per_sec;
}
return NULL_SEGNO;
}
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
struct victim_sel_policy p;
- unsigned int segno;
+ unsigned int secno;
int nsearched = 0;
p.alloc_mode = alloc_mode;
while (1) {
unsigned long cost;
+ unsigned int segno;
segno = find_next_bit(p.dirty_segmap,
TOTAL_SEGS(sbi), p.offset);
break;
}
p.offset = ((segno / p.ofs_unit) * p.ofs_unit) + p.ofs_unit;
+ secno = GET_SECNO(sbi, segno);
- if (test_bit(segno, dirty_i->victim_segmap[FG_GC]))
- continue;
- if (gc_type == BG_GC &&
- test_bit(segno, dirty_i->victim_segmap[BG_GC]))
+ if (sec_usage_check(sbi, secno))
continue;
- if (IS_CURSEC(sbi, GET_SECNO(sbi, segno)))
+ if (gc_type == BG_GC && test_bit(secno, dirty_i->victim_secmap))
continue;
cost = get_gc_cost(sbi, segno, &p);
}
got_it:
if (p.min_segno != NULL_SEGNO) {
- *result = (p.min_segno / p.ofs_unit) * p.ofs_unit;
if (p.alloc_mode == LFS) {
- int i;
- for (i = 0; i < p.ofs_unit; i++)
- set_bit(*result + i,
- dirty_i->victim_segmap[gc_type]);
+ secno = GET_SECNO(sbi, p.min_segno);
+ if (gc_type == FG_GC)
+ sbi->cur_victim_sec = secno;
+ else
+ set_bit(secno, dirty_i->victim_secmap);
}
+ *result = (p.min_segno / p.ofs_unit) * p.ofs_unit;
+
+ trace_f2fs_get_victim(sbi->sb, type, gc_type, &p,
+ sbi->cur_victim_sec,
+ prefree_segments(sbi), free_segments(sbi));
}
mutex_unlock(&dirty_i->seglist_lock);
next_step:
entry = sum;
+
for (off = 0; off < sbi->blocks_per_seg; off++, entry++) {
nid_t nid = le32_to_cpu(entry->nid);
struct page *node_page;
continue;
/* set page dirty and write it */
- if (!PageWriteback(node_page))
+ if (gc_type == FG_GC) {
+ f2fs_submit_bio(sbi, NODE, true);
+ wait_on_page_writeback(node_page);
set_page_dirty(node_page);
+ } else {
+ if (!PageWriteback(node_page))
+ set_page_dirty(node_page);
+ }
f2fs_put_page(node_page, 1);
stat_inc_node_blk_count(sbi, 1);
}
+
if (initial) {
initial = false;
goto next_step;
.for_reclaim = 0,
};
sync_node_pages(sbi, 0, &wbc);
+
+ /*
+ * In the case of FG_GC, it'd be better to reclaim this victim
+ * completely.
+ */
+ if (get_valid_blocks(sbi, segno, 1) != 0)
+ goto next_step;
}
}
static void move_data_page(struct inode *inode, struct page *page, int gc_type)
{
- if (page->mapping != inode->i_mapping)
- goto out;
-
- if (inode != page->mapping->host)
- goto out;
-
- if (PageWriteback(page))
- goto out;
-
if (gc_type == BG_GC) {
+ if (PageWriteback(page))
+ goto out;
set_page_dirty(page);
set_cold_data(page);
} else {
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
- mutex_lock_op(sbi, DATA_WRITE);
+
+ if (PageWriteback(page)) {
+ f2fs_submit_bio(sbi, DATA, true);
+ wait_on_page_writeback(page);
+ }
+
if (clear_page_dirty_for_io(page) &&
S_ISDIR(inode->i_mode)) {
dec_page_count(sbi, F2FS_DIRTY_DENTS);
}
set_cold_data(page);
do_write_data_page(page);
- mutex_unlock_op(sbi, DATA_WRITE);
clear_cold_data(page);
}
out:
next_step:
entry = sum;
+
for (off = 0; off < sbi->blocks_per_seg; off++, entry++) {
struct page *data_page;
struct inode *inode;
continue;
data_page = find_data_page(inode,
- start_bidx + ofs_in_node);
+ start_bidx + ofs_in_node, false);
if (IS_ERR(data_page))
goto next_iput;
next_iput:
iput(inode);
}
+
if (++phase < 4)
goto next_step;
- if (gc_type == FG_GC)
+ if (gc_type == FG_GC) {
f2fs_submit_bio(sbi, DATA, true);
+
+ /*
+ * In the case of FG_GC, it'd be better to reclaim this victim
+ * completely.
+ */
+ if (get_valid_blocks(sbi, segno, 1) != 0) {
+ phase = 2;
+ goto next_step;
+ }
+ }
}
static int __get_victim(struct f2fs_sb_info *sbi, unsigned int *victim,
{
struct page *sum_page;
struct f2fs_summary_block *sum;
+ struct blk_plug plug;
/* read segment summary of victim */
sum_page = get_sum_page(sbi, segno);
if (IS_ERR(sum_page))
return;
- /*
- * CP needs to lock sum_page. In this time, we don't need
- * to lock this page, because this summary page is not gone anywhere.
- * Also, this page is not gonna be updated before GC is done.
- */
- unlock_page(sum_page);
+ blk_start_plug(&plug);
+
sum = page_address(sum_page);
switch (GET_SUM_TYPE((&sum->footer))) {
gc_data_segment(sbi, sum->entries, ilist, segno, gc_type);
break;
}
+ blk_finish_plug(&plug);
+
stat_inc_seg_count(sbi, GET_SUM_TYPE((&sum->footer)));
stat_inc_call_count(sbi->stat_info);
- f2fs_put_page(sum_page, 0);
+ f2fs_put_page(sum_page, 1);
}
int f2fs_gc(struct f2fs_sb_info *sbi)
if (!(sbi->sb->s_flags & MS_ACTIVE))
goto stop;
- if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree))
+ if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
gc_type = FG_GC;
+ write_checkpoint(sbi, false);
+ }
if (!__get_victim(sbi, &segno, gc_type, NO_CHECK_TYPE))
goto stop;
for (i = 0; i < sbi->segs_per_sec; i++)
do_garbage_collect(sbi, segno + i, &ilist, gc_type);
- if (gc_type == FG_GC &&
- get_valid_blocks(sbi, segno, sbi->segs_per_sec) == 0)
+ if (gc_type == FG_GC) {
+ sbi->cur_victim_sec = NULL_SEGNO;
nfree++;
+ WARN_ON(get_valid_blocks(sbi, segno, sbi->segs_per_sec));
+ }
if (has_not_enough_free_secs(sbi, nfree))
goto gc_more;
* whether IO subsystem is idle
* or not
*/
-#define GC_THREAD_MIN_SLEEP_TIME 10000 /* milliseconds */
-#define GC_THREAD_MAX_SLEEP_TIME 30000
-#define GC_THREAD_NOGC_SLEEP_TIME 10000
+#define GC_THREAD_MIN_SLEEP_TIME 30000 /* milliseconds */
+#define GC_THREAD_MAX_SLEEP_TIME 60000
+#define GC_THREAD_NOGC_SLEEP_TIME 300000 /* wait 5 min */
#define LIMIT_INVALID_BLOCK 40 /* percentage over total user space */
#define LIMIT_FREE_BLOCK 40 /* percentage over invalid + free space */
static inline long increase_sleep_time(long wait)
{
+ if (wait == GC_THREAD_NOGC_SLEEP_TIME)
+ return wait;
+
wait += GC_THREAD_MIN_SLEEP_TIME;
if (wait > GC_THREAD_MAX_SLEEP_TIME)
wait = GC_THREAD_MAX_SLEEP_TIME;
static inline long decrease_sleep_time(long wait)
{
+ if (wait == GC_THREAD_NOGC_SLEEP_TIME)
+ wait = GC_THREAD_MAX_SLEEP_TIME;
+
wait -= GC_THREAD_MIN_SLEEP_TIME;
if (wait <= GC_THREAD_MIN_SLEEP_TIME)
wait = GC_THREAD_MIN_SLEEP_TIME;
#include "f2fs.h"
#include "node.h"
+#include <trace/events/f2fs.h>
+
void f2fs_set_inode_flags(struct inode *inode)
{
unsigned int flags = F2FS_I(inode)->i_flags;
struct f2fs_inode *ri;
/* Check if ino is within scope */
- check_nid_range(sbi, inode->i_ino);
+ if (check_nid_range(sbi, inode->i_ino)) {
+ f2fs_msg(inode->i_sb, KERN_ERR, "bad inode number: %lu",
+ (unsigned long) inode->i_ino);
+ return -EINVAL;
+ }
node_page = get_node_page(sbi, inode->i_ino);
if (IS_ERR(node_page))
fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
fi->i_flags = le32_to_cpu(ri->i_flags);
fi->flags = 0;
- fi->data_version = le64_to_cpu(F2FS_CKPT(sbi)->checkpoint_ver) - 1;
fi->i_advise = ri->i_advise;
fi->i_pino = le32_to_cpu(ri->i_pino);
get_extent_info(&fi->ext, ri->i_ext);
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
- int ret;
+ int ret = 0;
inode = iget_locked(sb, ino);
if (!inode)
return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW))
+
+ if (!(inode->i_state & I_NEW)) {
+ trace_f2fs_iget(inode);
return inode;
+ }
if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
goto make_now;
goto bad_inode;
}
unlock_new_inode(inode);
-
+ trace_f2fs_iget(inode);
return inode;
bad_inode:
iget_failed(inode);
+ trace_f2fs_iget_exit(inode, ret);
return ERR_PTR(ret);
}
set_page_dirty(node_page);
}
-int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
+int update_inode_page(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct page *node_page;
- bool need_lock = false;
-
- if (inode->i_ino == F2FS_NODE_INO(sbi) ||
- inode->i_ino == F2FS_META_INO(sbi))
- return 0;
-
- if (wbc)
- f2fs_balance_fs(sbi);
node_page = get_node_page(sbi, inode->i_ino);
if (IS_ERR(node_page))
return PTR_ERR(node_page);
- if (!PageDirty(node_page)) {
- need_lock = true;
- f2fs_put_page(node_page, 1);
- mutex_lock(&sbi->write_inode);
- node_page = get_node_page(sbi, inode->i_ino);
- if (IS_ERR(node_page)) {
- mutex_unlock(&sbi->write_inode);
- return PTR_ERR(node_page);
- }
- }
update_inode(inode, node_page);
f2fs_put_page(node_page, 1);
- if (need_lock)
- mutex_unlock(&sbi->write_inode);
return 0;
}
+int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
+{
+ struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ int ret, ilock;
+
+ if (inode->i_ino == F2FS_NODE_INO(sbi) ||
+ inode->i_ino == F2FS_META_INO(sbi))
+ return 0;
+
+ if (wbc)
+ f2fs_balance_fs(sbi);
+
+ /*
+ * We need to lock here to prevent from producing dirty node pages
+ * during the urgent cleaning time when runing out of free sections.
+ */
+ ilock = mutex_lock_op(sbi);
+ ret = update_inode_page(inode);
+ mutex_unlock_op(sbi, ilock);
+ return ret;
+}
+
/*
* Called at the last iput() if i_nlink is zero
*/
void f2fs_evict_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ int ilock;
+ trace_f2fs_evict_inode(inode);
truncate_inode_pages(&inode->i_data, 0);
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
if (F2FS_HAS_BLOCKS(inode))
f2fs_truncate(inode);
+ ilock = mutex_lock_op(sbi);
remove_inode_page(inode);
+ mutex_unlock_op(sbi, ilock);
+
sb_end_intwrite(inode->i_sb);
no_delete:
clear_inode(inode);
#include <linux/ctype.h>
#include "f2fs.h"
+#include "node.h"
#include "xattr.h"
#include "acl.h"
+#include <trace/events/f2fs.h>
static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
{
nid_t ino;
struct inode *inode;
bool nid_free = false;
- int err;
+ int err, ilock;
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
- mutex_lock_op(sbi, NODE_NEW);
+ ilock = mutex_lock_op(sbi);
if (!alloc_nid(sbi, &ino)) {
- mutex_unlock_op(sbi, NODE_NEW);
+ mutex_unlock_op(sbi, ilock);
err = -ENOSPC;
goto fail;
}
- mutex_unlock_op(sbi, NODE_NEW);
+ mutex_unlock_op(sbi, ilock);
inode->i_uid = current_fsuid();
nid_free = true;
goto out;
}
-
+ trace_f2fs_new_inode(inode, 0);
mark_inode_dirty(inode);
return inode;
clear_nlink(inode);
unlock_new_inode(inode);
fail:
+ trace_f2fs_new_inode(inode, err);
+ make_bad_inode(inode);
iput(inode);
if (nid_free)
alloc_nid_failed(sbi, ino);
int ret;
if (sublen > slen)
- return 1;
+ return 0;
ret = memcmp(s + slen - sublen, sub, sublen);
if (ret) { /* compare upper case */
char upper_sub[8];
for (i = 0; i < sublen && i < sizeof(upper_sub); i++)
upper_sub[i] = toupper(sub[i]);
- return memcmp(s + slen - sublen, upper_sub, sublen);
+ return !memcmp(s + slen - sublen, upper_sub, sublen);
}
- return ret;
+ return !ret;
}
/*
* Set multimedia files as cold files for hot/cold data separation
*/
-static inline void set_cold_file(struct f2fs_sb_info *sbi, struct inode *inode,
+static inline void set_cold_files(struct f2fs_sb_info *sbi, struct inode *inode,
const unsigned char *name)
{
int i;
int count = le32_to_cpu(sbi->raw_super->extension_count);
for (i = 0; i < count; i++) {
- if (!is_multimedia_file(name, extlist[i])) {
- F2FS_I(inode)->i_advise |= FADVISE_COLD_BIT;
+ if (is_multimedia_file(name, extlist[i])) {
+ set_cold_file(inode);
break;
}
}
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
nid_t ino = 0;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
return PTR_ERR(inode);
if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
- set_cold_file(sbi, inode, dentry->d_name.name);
+ set_cold_files(sbi, inode, dentry->d_name.name);
inode->i_op = &f2fs_file_inode_operations;
inode->i_fop = &f2fs_file_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
ino = inode->i_ino;
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
out:
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, ino);
return err;
struct inode *inode = old_dentry->d_inode;
struct super_block *sb = dir->i_sb;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
atomic_inc(&inode->i_count);
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
+ /*
+ * This file should be checkpointed during fsync.
+ * We lost i_pino from now on.
+ */
+ set_cp_file(inode);
+
d_instantiate(dentry, inode);
return 0;
out:
clear_inode_flag(F2FS_I(inode), FI_INC_LINK);
+ make_bad_inode(inode);
iput(inode);
return err;
}
struct f2fs_dir_entry *de;
struct page *page;
- if (dentry->d_name.len > F2FS_MAX_NAME_LEN)
+ if (dentry->d_name.len > F2FS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
de = f2fs_find_entry(dir, &dentry->d_name, &page);
struct f2fs_dir_entry *de;
struct page *page;
int err = -ENOENT;
+ int ilock;
+ trace_f2fs_unlink_enter(dir, dentry);
f2fs_balance_fs(sbi);
de = f2fs_find_entry(dir, &dentry->d_name, &page);
goto fail;
}
+ ilock = mutex_lock_op(sbi);
f2fs_delete_entry(de, page, inode);
+ mutex_unlock_op(sbi, ilock);
/* In order to evict this inode, we set it dirty */
mark_inode_dirty(inode);
fail:
+ trace_f2fs_unlink_exit(inode, err);
return err;
}
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
size_t symlen = strlen(symname) + 1;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
inode->i_op = &f2fs_symlink_inode_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
out:
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
{
struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
struct inode *inode;
- int err;
+ int err, ilock;
f2fs_balance_fs(sbi);
mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
set_inode_flag(F2FS_I(inode), FI_INC_LINK);
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out_fail;
clear_inode_flag(F2FS_I(inode), FI_INC_LINK);
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
int err = 0;
+ int ilock;
if (!new_valid_dev(rdev))
return -EINVAL;
init_special_inode(inode, inode->i_mode, rdev);
inode->i_op = &f2fs_special_inode_operations;
+ ilock = mutex_lock_op(sbi);
err = f2fs_add_link(dentry, inode);
+ mutex_unlock_op(sbi, ilock);
if (err)
goto out;
out:
clear_nlink(inode);
unlock_new_inode(inode);
+ make_bad_inode(inode);
iput(inode);
alloc_nid_failed(sbi, inode->i_ino);
return err;
struct f2fs_dir_entry *old_dir_entry = NULL;
struct f2fs_dir_entry *old_entry;
struct f2fs_dir_entry *new_entry;
- int err = -ENOENT;
+ int err = -ENOENT, ilock = -1;
f2fs_balance_fs(sbi);
goto out_old;
}
- mutex_lock_op(sbi, RENAME);
+ ilock = mutex_lock_op(sbi);
if (new_inode) {
struct page *new_page;
drop_nlink(new_inode);
if (!new_inode->i_nlink)
add_orphan_inode(sbi, new_inode->i_ino);
- f2fs_write_inode(new_inode, NULL);
+ update_inode_page(new_inode);
} else {
err = f2fs_add_link(new_dentry, old_inode);
if (err)
if (old_dir_entry) {
inc_nlink(new_dir);
- f2fs_write_inode(new_dir, NULL);
+ update_inode_page(new_dir);
}
}
old_inode->i_ctime = CURRENT_TIME;
- set_inode_flag(F2FS_I(old_inode), FI_NEED_CP);
mark_inode_dirty(old_inode);
f2fs_delete_entry(old_entry, old_page, NULL);
f2fs_put_page(old_dir_page, 0);
}
drop_nlink(old_dir);
- f2fs_write_inode(old_dir, NULL);
+ update_inode_page(old_dir);
}
- mutex_unlock_op(sbi, RENAME);
+ mutex_unlock_op(sbi, ilock);
return 0;
out_dir:
kunmap(old_dir_page);
f2fs_put_page(old_dir_page, 0);
}
- mutex_unlock_op(sbi, RENAME);
+ mutex_unlock_op(sbi, ilock);
out_old:
kunmap(old_page);
f2fs_put_page(old_page, 0);
#include "f2fs.h"
#include "node.h"
#include "segment.h"
+#include <trace/events/f2fs.h>
static struct kmem_cache *nat_entry_slab;
static struct kmem_cache *free_nid_slab;
{
struct address_space *mapping = sbi->meta_inode->i_mapping;
struct f2fs_nm_info *nm_i = NM_I(sbi);
+ struct blk_plug plug;
struct page *page;
pgoff_t index;
int i;
+ blk_start_plug(&plug);
+
for (i = 0; i < FREE_NID_PAGES; i++, nid += NAT_ENTRY_PER_BLOCK) {
if (nid >= nm_i->max_nid)
nid = 0;
page = grab_cache_page(mapping, index);
if (!page)
continue;
- if (f2fs_readpage(sbi, page, index, READ)) {
+ if (PageUptodate(page)) {
f2fs_put_page(page, 1);
continue;
}
+ if (f2fs_readpage(sbi, page, index, READ))
+ continue;
+
f2fs_put_page(page, 0);
}
+ blk_finish_plug(&plug);
}
static struct nat_entry *__lookup_nat_cache(struct f2fs_nm_info *nm_i, nid_t n)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
- if (nm_i->nat_cnt < 2 * NM_WOUT_THRESHOLD)
+ if (nm_i->nat_cnt <= NM_WOUT_THRESHOLD)
return 0;
write_lock(&nm_i->nat_tree_lock);
noffset[0] = 0;
if (block < direct_index) {
- offset[n++] = block;
- level = 0;
+ offset[n] = block;
goto got;
}
block -= direct_index;
if (block < direct_blks) {
offset[n++] = NODE_DIR1_BLOCK;
noffset[n] = 1;
- offset[n++] = block;
+ offset[n] = block;
level = 1;
goto got;
}
if (block < direct_blks) {
offset[n++] = NODE_DIR2_BLOCK;
noffset[n] = 2;
- offset[n++] = block;
+ offset[n] = block;
level = 1;
goto got;
}
noffset[n] = 3;
offset[n++] = block / direct_blks;
noffset[n] = 4 + offset[n - 1];
- offset[n++] = block % direct_blks;
+ offset[n] = block % direct_blks;
level = 2;
goto got;
}
noffset[n] = 4 + dptrs_per_blk;
offset[n++] = block / direct_blks;
noffset[n] = 5 + dptrs_per_blk + offset[n - 1];
- offset[n++] = block % direct_blks;
+ offset[n] = block % direct_blks;
level = 2;
goto got;
}
noffset[n] = 7 + (dptrs_per_blk * 2) +
offset[n - 2] * (dptrs_per_blk + 1) +
offset[n - 1];
- offset[n++] = block % direct_blks;
+ offset[n] = block % direct_blks;
level = 3;
goto got;
} else {
/*
* Caller should call f2fs_put_dnode(dn).
+ * Also, it should grab and release a mutex by calling mutex_lock_op() and
+ * mutex_unlock_op() only if ro is not set RDONLY_NODE.
+ * In the case of RDONLY_NODE, we don't need to care about mutex.
*/
-int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int ro)
+int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
{
struct f2fs_sb_info *sbi = F2FS_SB(dn->inode->i_sb);
struct page *npage[4];
return PTR_ERR(npage[0]);
parent = npage[0];
- nids[1] = get_nid(parent, offset[0], true);
+ if (level != 0)
+ nids[1] = get_nid(parent, offset[0], true);
dn->inode_page = npage[0];
dn->inode_page_locked = true;
for (i = 1; i <= level; i++) {
bool done = false;
- if (!nids[i] && !ro) {
- mutex_lock_op(sbi, NODE_NEW);
-
+ if (!nids[i] && mode == ALLOC_NODE) {
/* alloc new node */
if (!alloc_nid(sbi, &(nids[i]))) {
- mutex_unlock_op(sbi, NODE_NEW);
err = -ENOSPC;
goto release_pages;
}
npage[i] = new_node_page(dn, noffset[i]);
if (IS_ERR(npage[i])) {
alloc_nid_failed(sbi, nids[i]);
- mutex_unlock_op(sbi, NODE_NEW);
err = PTR_ERR(npage[i]);
goto release_pages;
}
set_nid(parent, offset[i - 1], nids[i], i == 1);
alloc_nid_done(sbi, nids[i]);
- mutex_unlock_op(sbi, NODE_NEW);
done = true;
- } else if (ro && i == level && level > 1) {
+ } else if (mode == LOOKUP_NODE_RA && i == level && level > 1) {
npage[i] = get_node_page_ra(parent, offset[i - 1]);
if (IS_ERR(npage[i])) {
err = PTR_ERR(npage[i]);
f2fs_put_page(dn->node_page, 1);
dn->node_page = NULL;
+ trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr);
}
static int truncate_dnode(struct dnode_of_data *dn)
if (dn->nid == 0)
return NIDS_PER_BLOCK + 1;
+ trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr);
+
page = get_node_page(sbi, dn->nid);
- if (IS_ERR(page))
+ if (IS_ERR(page)) {
+ trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page));
return PTR_ERR(page);
+ }
rn = (struct f2fs_node *)page_address(page);
if (depth < 3) {
} else {
f2fs_put_page(page, 1);
}
+ trace_f2fs_truncate_nodes_exit(dn->inode, freed);
return freed;
out_err:
f2fs_put_page(page, 1);
+ trace_f2fs_truncate_nodes_exit(dn->inode, ret);
return ret;
}
fail:
for (i = depth - 3; i >= 0; i--)
f2fs_put_page(pages[i], 1);
+
+ trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err);
+
return err;
}
int truncate_inode_blocks(struct inode *inode, pgoff_t from)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+ struct address_space *node_mapping = sbi->node_inode->i_mapping;
int err = 0, cont = 1;
int level, offset[4], noffset[4];
unsigned int nofs = 0;
struct dnode_of_data dn;
struct page *page;
- level = get_node_path(from, offset, noffset);
+ trace_f2fs_truncate_inode_blocks_enter(inode, from);
+ level = get_node_path(from, offset, noffset);
+restart:
page = get_node_page(sbi, inode->i_ino);
- if (IS_ERR(page))
+ if (IS_ERR(page)) {
+ trace_f2fs_truncate_inode_blocks_exit(inode, PTR_ERR(page));
return PTR_ERR(page);
+ }
set_new_dnode(&dn, inode, page, NULL, 0);
unlock_page(page);
if (offset[1] == 0 &&
rn->i.i_nid[offset[0] - NODE_DIR1_BLOCK]) {
lock_page(page);
+ if (page->mapping != node_mapping) {
+ f2fs_put_page(page, 1);
+ goto restart;
+ }
wait_on_page_writeback(page);
rn->i.i_nid[offset[0] - NODE_DIR1_BLOCK] = 0;
set_page_dirty(page);
}
fail:
f2fs_put_page(page, 0);
+ trace_f2fs_truncate_inode_blocks_exit(inode, err);
return err > 0 ? 0 : err;
}
+/*
+ * Caller should grab and release a mutex by calling mutex_lock_op() and
+ * mutex_unlock_op().
+ */
int remove_inode_page(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
nid_t ino = inode->i_ino;
struct dnode_of_data dn;
- mutex_lock_op(sbi, NODE_TRUNC);
page = get_node_page(sbi, ino);
- if (IS_ERR(page)) {
- mutex_unlock_op(sbi, NODE_TRUNC);
+ if (IS_ERR(page))
return PTR_ERR(page);
- }
if (F2FS_I(inode)->i_xattr_nid) {
nid_t nid = F2FS_I(inode)->i_xattr_nid;
struct page *npage = get_node_page(sbi, nid);
- if (IS_ERR(npage)) {
- mutex_unlock_op(sbi, NODE_TRUNC);
+ if (IS_ERR(npage))
return PTR_ERR(npage);
- }
F2FS_I(inode)->i_xattr_nid = 0;
set_new_dnode(&dn, inode, page, npage, nid);
BUG_ON(inode->i_blocks != 0 && inode->i_blocks != 1);
set_new_dnode(&dn, inode, page, page, ino);
truncate_node(&dn);
-
- mutex_unlock_op(sbi, NODE_TRUNC);
return 0;
}
int new_inode_page(struct inode *inode, const struct qstr *name)
{
- struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct page *page;
struct dnode_of_data dn;
/* allocate inode page for new inode */
set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);
- mutex_lock_op(sbi, NODE_NEW);
page = new_node_page(&dn, 0);
init_dent_inode(name, page);
- mutex_unlock_op(sbi, NODE_NEW);
if (IS_ERR(page))
return PTR_ERR(page);
f2fs_put_page(page, 1);
return ERR_PTR(err);
}
+/*
+ * Caller should do after getting the following values.
+ * 0: f2fs_put_page(page, 0)
+ * LOCKED_PAGE: f2fs_put_page(page, 1)
+ * error: nothing
+ */
static int read_node_page(struct page *page, int type)
{
struct f2fs_sb_info *sbi = F2FS_SB(page->mapping->host->i_sb);
get_node_info(sbi, page->index, &ni);
- if (ni.blk_addr == NULL_ADDR)
+ if (ni.blk_addr == NULL_ADDR) {
+ f2fs_put_page(page, 1);
return -ENOENT;
+ }
+
+ if (PageUptodate(page))
+ return LOCKED_PAGE;
+
return f2fs_readpage(sbi, page, ni.blk_addr, type);
}
{
struct address_space *mapping = sbi->node_inode->i_mapping;
struct page *apage;
+ int err;
apage = find_get_page(mapping, nid);
- if (apage && PageUptodate(apage))
- goto release_out;
+ if (apage && PageUptodate(apage)) {
+ f2fs_put_page(apage, 0);
+ return;
+ }
f2fs_put_page(apage, 0);
apage = grab_cache_page(mapping, nid);
if (!apage)
return;
- if (read_node_page(apage, READA))
- unlock_page(apage);
-
-release_out:
- f2fs_put_page(apage, 0);
+ err = read_node_page(apage, READA);
+ if (err == 0)
+ f2fs_put_page(apage, 0);
+ else if (err == LOCKED_PAGE)
+ f2fs_put_page(apage, 1);
return;
}
struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid)
{
- int err;
- struct page *page;
struct address_space *mapping = sbi->node_inode->i_mapping;
-
+ struct page *page;
+ int err;
+repeat:
page = grab_cache_page(mapping, nid);
if (!page)
return ERR_PTR(-ENOMEM);
err = read_node_page(page, READ_SYNC);
- if (err) {
- f2fs_put_page(page, 1);
+ if (err < 0)
return ERR_PTR(err);
- }
+ else if (err == LOCKED_PAGE)
+ goto got_it;
+ lock_page(page);
+ if (!PageUptodate(page)) {
+ f2fs_put_page(page, 1);
+ return ERR_PTR(-EIO);
+ }
+ if (page->mapping != mapping) {
+ f2fs_put_page(page, 1);
+ goto repeat;
+ }
+got_it:
BUG_ON(nid != nid_of_node(page));
mark_page_accessed(page);
return page;
{
struct f2fs_sb_info *sbi = F2FS_SB(parent->mapping->host->i_sb);
struct address_space *mapping = sbi->node_inode->i_mapping;
- int i, end;
- int err = 0;
- nid_t nid;
+ struct blk_plug plug;
struct page *page;
+ int err, i, end;
+ nid_t nid;
/* First, try getting the desired direct node. */
nid = get_nid(parent, start, false);
if (!nid)
return ERR_PTR(-ENOENT);
-
- page = find_get_page(mapping, nid);
- if (page && PageUptodate(page))
- goto page_hit;
- f2fs_put_page(page, 0);
-
repeat:
page = grab_cache_page(mapping, nid);
if (!page)
return ERR_PTR(-ENOMEM);
- err = read_node_page(page, READA);
- if (err) {
- f2fs_put_page(page, 1);
+ err = read_node_page(page, READ_SYNC);
+ if (err < 0)
return ERR_PTR(err);
- }
+ else if (err == LOCKED_PAGE)
+ goto page_hit;
+
+ blk_start_plug(&plug);
/* Then, try readahead for siblings of the desired node */
end = start + MAX_RA_NODE;
ra_node_page(sbi, nid);
}
-page_hit:
- lock_page(page);
- if (PageError(page)) {
- f2fs_put_page(page, 1);
- return ERR_PTR(-EIO);
- }
+ blk_finish_plug(&plug);
- /* Has the page been truncated? */
+ lock_page(page);
if (page->mapping != mapping) {
f2fs_put_page(page, 1);
goto repeat;
}
+page_hit:
+ if (!PageUptodate(page)) {
+ f2fs_put_page(page, 1);
+ return ERR_PTR(-EIO);
+ }
+ mark_page_accessed(page);
return page;
}
if (!dn->inode_page_locked)
unlock_page(dn->inode_page);
} else {
- f2fs_write_inode(dn->inode, NULL);
+ update_inode_page(dn->inode);
}
}
block_t new_addr;
struct node_info ni;
- if (wbc->for_reclaim) {
- dec_page_count(sbi, F2FS_DIRTY_NODES);
- wbc->pages_skipped++;
- set_page_dirty(page);
- return AOP_WRITEPAGE_ACTIVATE;
- }
-
wait_on_page_writeback(page);
- mutex_lock_op(sbi, NODE_WRITE);
-
/* get old block addr of this node page */
nid = nid_of_node(page);
BUG_ON(page->index != nid);
get_node_info(sbi, nid, &ni);
/* This page is already truncated */
- if (ni.blk_addr == NULL_ADDR)
+ if (ni.blk_addr == NULL_ADDR) {
+ dec_page_count(sbi, F2FS_DIRTY_NODES);
+ unlock_page(page);
return 0;
+ }
- set_page_writeback(page);
+ if (wbc->for_reclaim) {
+ dec_page_count(sbi, F2FS_DIRTY_NODES);
+ wbc->pages_skipped++;
+ set_page_dirty(page);
+ return AOP_WRITEPAGE_ACTIVATE;
+ }
- /* insert node offset */
+ mutex_lock(&sbi->node_write);
+ set_page_writeback(page);
write_node_page(sbi, page, nid, ni.blk_addr, &new_addr);
set_node_addr(sbi, &ni, new_addr);
dec_page_count(sbi, F2FS_DIRTY_NODES);
-
- mutex_unlock_op(sbi, NODE_WRITE);
+ mutex_unlock(&sbi->node_write);
unlock_page(page);
return 0;
}
struct writeback_control *wbc)
{
struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
- struct block_device *bdev = sbi->sb->s_bdev;
long nr_to_write = wbc->nr_to_write;
/* First check balancing cached NAT entries */
if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK)) {
- write_checkpoint(sbi, false);
+ f2fs_sync_fs(sbi->sb, true);
return 0;
}
return 0;
/* if mounting is failed, skip writing node pages */
- wbc->nr_to_write = bio_get_nr_vecs(bdev);
+ wbc->nr_to_write = max_hw_blocks(sbi);
sync_node_pages(sbi, 0, wbc);
- wbc->nr_to_write = nr_to_write -
- (bio_get_nr_vecs(bdev) - wbc->nr_to_write);
+ wbc->nr_to_write = nr_to_write - (max_hw_blocks(sbi) - wbc->nr_to_write);
return 0;
}
static int f2fs_release_node_page(struct page *page, gfp_t wait)
{
ClearPagePrivate(page);
- return 0;
+ return 1;
}
/*
static struct free_nid *__lookup_free_nid_list(nid_t n, struct list_head *head)
{
struct list_head *this;
- struct free_nid *i = NULL;
+ struct free_nid *i;
list_for_each(this, head) {
i = list_entry(this, struct free_nid, list);
if (i->nid == n)
- break;
- i = NULL;
+ return i;
}
- return i;
+ return NULL;
}
static void __del_from_free_nid_list(struct free_nid *i)
kmem_cache_free(free_nid_slab, i);
}
-static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid)
+static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build)
{
struct free_nid *i;
+ struct nat_entry *ne;
+ bool allocated = false;
if (nm_i->fcnt > 2 * MAX_FREE_NIDS)
+ return -1;
+
+ /* 0 nid should not be used */
+ if (nid == 0)
+ return 0;
+
+ if (!build)
+ goto retry;
+
+ /* do not add allocated nids */
+ read_lock(&nm_i->nat_tree_lock);
+ ne = __lookup_nat_cache(nm_i, nid);
+ if (ne && nat_get_blkaddr(ne) != NULL_ADDR)
+ allocated = true;
+ read_unlock(&nm_i->nat_tree_lock);
+ if (allocated)
return 0;
retry:
i = kmem_cache_alloc(free_nid_slab, GFP_NOFS);
spin_unlock(&nm_i->free_nid_list_lock);
}
-static int scan_nat_page(struct f2fs_nm_info *nm_i,
+static void scan_nat_page(struct f2fs_nm_info *nm_i,
struct page *nat_page, nid_t start_nid)
{
struct f2fs_nat_block *nat_blk = page_address(nat_page);
block_t blk_addr;
- int fcnt = 0;
int i;
- /* 0 nid should not be used */
- if (start_nid == 0)
- ++start_nid;
-
i = start_nid % NAT_ENTRY_PER_BLOCK;
for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) {
- blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr);
+
+ if (start_nid >= nm_i->max_nid)
+ break;
+
+ blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr);
BUG_ON(blk_addr == NEW_ADDR);
- if (blk_addr == NULL_ADDR)
- fcnt += add_free_nid(nm_i, start_nid);
+ if (blk_addr == NULL_ADDR) {
+ if (add_free_nid(nm_i, start_nid, true) < 0)
+ break;
+ }
}
- return fcnt;
}
static void build_free_nids(struct f2fs_sb_info *sbi)
{
- struct free_nid *fnid, *next_fnid;
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
struct f2fs_summary_block *sum = curseg->sum_blk;
- nid_t nid = 0;
- bool is_cycled = false;
- int fcnt = 0;
- int i;
+ int i = 0;
+ nid_t nid = nm_i->next_scan_nid;
- nid = nm_i->next_scan_nid;
- nm_i->init_scan_nid = nid;
+ /* Enough entries */
+ if (nm_i->fcnt > NAT_ENTRY_PER_BLOCK)
+ return;
+ /* readahead nat pages to be scanned */
ra_nat_pages(sbi, nid);
while (1) {
struct page *page = get_current_nat_page(sbi, nid);
- fcnt += scan_nat_page(nm_i, page, nid);
+ scan_nat_page(nm_i, page, nid);
f2fs_put_page(page, 1);
nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK));
-
- if (nid >= nm_i->max_nid) {
+ if (nid >= nm_i->max_nid)
nid = 0;
- is_cycled = true;
- }
- if (fcnt > MAX_FREE_NIDS)
- break;
- if (is_cycled && nm_i->init_scan_nid <= nid)
+
+ if (i++ == FREE_NID_PAGES)
break;
}
+ /* go to the next free nat pages to find free nids abundantly */
nm_i->next_scan_nid = nid;
/* find free nids from current sum_pages */
block_t addr = le32_to_cpu(nat_in_journal(sum, i).block_addr);
nid = le32_to_cpu(nid_in_journal(sum, i));
if (addr == NULL_ADDR)
- add_free_nid(nm_i, nid);
+ add_free_nid(nm_i, nid, true);
else
remove_free_nid(nm_i, nid);
}
mutex_unlock(&curseg->curseg_mutex);
-
- /* remove the free nids from current allocated nids */
- list_for_each_entry_safe(fnid, next_fnid, &nm_i->free_nid_list, list) {
- struct nat_entry *ne;
-
- read_lock(&nm_i->nat_tree_lock);
- ne = __lookup_nat_cache(nm_i, fnid->nid);
- if (ne && nat_get_blkaddr(ne) != NULL_ADDR)
- remove_free_nid(nm_i, fnid->nid);
- read_unlock(&nm_i->nat_tree_lock);
- }
}
/*
struct free_nid *i = NULL;
struct list_head *this;
retry:
- mutex_lock(&nm_i->build_lock);
- if (!nm_i->fcnt) {
- /* scan NAT in order to build free nid list */
- build_free_nids(sbi);
- if (!nm_i->fcnt) {
- mutex_unlock(&nm_i->build_lock);
- return false;
- }
- }
- mutex_unlock(&nm_i->build_lock);
+ if (sbi->total_valid_node_count + 1 >= nm_i->max_nid)
+ return false;
- /*
- * We check fcnt again since previous check is racy as
- * we didn't hold free_nid_list_lock. So other thread
- * could consume all of free nids.
- */
spin_lock(&nm_i->free_nid_list_lock);
- if (!nm_i->fcnt) {
- spin_unlock(&nm_i->free_nid_list_lock);
- goto retry;
- }
- BUG_ON(list_empty(&nm_i->free_nid_list));
- list_for_each(this, &nm_i->free_nid_list) {
- i = list_entry(this, struct free_nid, list);
- if (i->state == NID_NEW)
- break;
- }
+ /* We should not use stale free nids created by build_free_nids */
+ if (nm_i->fcnt && !sbi->on_build_free_nids) {
+ BUG_ON(list_empty(&nm_i->free_nid_list));
+ list_for_each(this, &nm_i->free_nid_list) {
+ i = list_entry(this, struct free_nid, list);
+ if (i->state == NID_NEW)
+ break;
+ }
- BUG_ON(i->state != NID_NEW);
- *nid = i->nid;
- i->state = NID_ALLOC;
- nm_i->fcnt--;
+ BUG_ON(i->state != NID_NEW);
+ *nid = i->nid;
+ i->state = NID_ALLOC;
+ nm_i->fcnt--;
+ spin_unlock(&nm_i->free_nid_list_lock);
+ return true;
+ }
spin_unlock(&nm_i->free_nid_list_lock);
- return true;
+
+ /* Let's scan nat pages and its caches to get free nids */
+ mutex_lock(&nm_i->build_lock);
+ sbi->on_build_free_nids = 1;
+ build_free_nids(sbi);
+ sbi->on_build_free_nids = 0;
+ mutex_unlock(&nm_i->build_lock);
+ goto retry;
}
/*
spin_lock(&nm_i->free_nid_list_lock);
i = __lookup_free_nid_list(nid, &nm_i->free_nid_list);
- if (i) {
- BUG_ON(i->state != NID_ALLOC);
- __del_from_free_nid_list(i);
- }
+ BUG_ON(!i || i->state != NID_ALLOC);
+ __del_from_free_nid_list(i);
spin_unlock(&nm_i->free_nid_list_lock);
}
*/
void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid)
{
- alloc_nid_done(sbi, nid);
- add_free_nid(NM_I(sbi), nid);
+ struct f2fs_nm_info *nm_i = NM_I(sbi);
+ struct free_nid *i;
+
+ spin_lock(&nm_i->free_nid_list_lock);
+ i = __lookup_free_nid_list(nid, &nm_i->free_nid_list);
+ BUG_ON(!i || i->state != NID_ALLOC);
+ if (nm_i->fcnt > 2 * MAX_FREE_NIDS) {
+ __del_from_free_nid_list(i);
+ } else {
+ i->state = NID_NEW;
+ nm_i->fcnt++;
+ }
+ spin_unlock(&nm_i->free_nid_list_lock);
}
void recover_node_page(struct f2fs_sb_info *sbi, struct page *page,
sum_entry = &sum->entries[0];
for (i = 0; i < last_offset; i++, sum_entry++) {
+ /*
+ * In order to read next node page,
+ * we must clear PageUptodate flag.
+ */
+ ClearPageUptodate(page);
+
if (f2fs_readpage(sbi, page, addr, READ_SYNC))
goto out;
+ lock_page(page);
rn = (struct f2fs_node *)page_address(page);
sum_entry->nid = rn->footer.nid;
sum_entry->version = 0;
sum_entry->ofs_in_node = 0;
addr++;
-
- /*
- * In order to read next node page,
- * we must clear PageUptodate flag.
- */
- ClearPageUptodate(page);
}
-out:
unlock_page(page);
+out:
__free_pages(page, 0);
return 0;
}
nid_in_journal(sum, offset) = cpu_to_le32(nid);
}
- if (nat_get_blkaddr(ne) == NULL_ADDR) {
+ if (nat_get_blkaddr(ne) == NULL_ADDR &&
+ add_free_nid(NM_I(sbi), nid, false) <= 0) {
write_lock(&nm_i->nat_tree_lock);
__del_from_nat_cache(nm_i, ne);
write_unlock(&nm_i->nat_tree_lock);
-
- /* We can reuse this freed nid at this point */
- add_free_nid(NM_I(sbi), nid);
} else {
write_lock(&nm_i->nat_tree_lock);
__clear_nat_cache_dirty(nm_i, ne);
spin_lock_init(&nm_i->free_nid_list_lock);
rwlock_init(&nm_i->nat_tree_lock);
- nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP);
- nm_i->init_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid);
nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid);
-
- nm_i->nat_bitmap = kzalloc(nm_i->bitmap_size, GFP_KERNEL);
- if (!nm_i->nat_bitmap)
- return -ENOMEM;
+ nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP);
version_bitmap = __bitmap_ptr(sbi, NAT_BITMAP);
if (!version_bitmap)
return -EFAULT;
- /* copy version bitmap */
- memcpy(nm_i->nat_bitmap, version_bitmap, nm_i->bitmap_size);
+ nm_i->nat_bitmap = kmemdup(version_bitmap, nm_i->bitmap_size,
+ GFP_KERNEL);
+ if (!nm_i->nat_bitmap)
+ return -ENOMEM;
return 0;
}
/* vector size for gang look-up from nat cache that consists of radix tree */
#define NATVEC_SIZE 64
+/* return value for read_node_page */
+#define LOCKED_PAGE 1
+
/*
* For node information
*/
return false;
if (ofs >= 6 + 2 * NIDS_PER_BLOCK) {
ofs -= 6 + 2 * NIDS_PER_BLOCK;
- if ((long int)ofs % (NIDS_PER_BLOCK + 1))
+ if (!((long int)ofs % (NIDS_PER_BLOCK + 1)))
return false;
}
return true;
return F2FS_I(inode)->i_advise & FADVISE_COLD_BIT;
}
+static inline void set_cold_file(struct inode *inode)
+{
+ F2FS_I(inode)->i_advise |= FADVISE_COLD_BIT;
+}
+
+static inline int is_cp_file(struct inode *inode)
+{
+ return F2FS_I(inode)->i_advise & FADVISE_CP_BIT;
+}
+
+static inline void set_cp_file(struct inode *inode)
+{
+ F2FS_I(inode)->i_advise |= FADVISE_CP_BIT;
+}
+
static inline int is_cold_data(struct page *page)
{
return PageChecked(page);
dir = f2fs_iget(inode->i_sb, le32_to_cpu(raw_inode->i_pino));
if (IS_ERR(dir)) {
- err = -EINVAL;
+ err = PTR_ERR(dir);
goto out;
}
while (1) {
struct fsync_inode_entry *entry;
- if (f2fs_readpage(sbi, page, blkaddr, READ_SYNC))
+ err = f2fs_readpage(sbi, page, blkaddr, READ_SYNC);
+ if (err)
goto out;
+ lock_page(page);
+
if (cp_ver != cpver_of_node(page))
- goto out;
+ goto unlock_out;
if (!is_fsync_dnode(page))
goto next;
FI_INC_LINK);
} else {
if (IS_INODE(page) && is_dent_dnode(page)) {
- if (recover_inode_page(sbi, page)) {
- err = -ENOMEM;
- goto out;
- }
+ err = recover_inode_page(sbi, page);
+ if (err)
+ goto unlock_out;
}
/* add this fsync inode to the list */
entry = kmem_cache_alloc(fsync_entry_slab, GFP_NOFS);
if (!entry) {
err = -ENOMEM;
- goto out;
+ goto unlock_out;
}
entry->inode = f2fs_iget(sbi->sb, ino_of_node(page));
if (IS_ERR(entry->inode)) {
err = PTR_ERR(entry->inode);
kmem_cache_free(fsync_entry_slab, entry);
- goto out;
+ goto unlock_out;
}
list_add_tail(&entry->list, head);
}
if (IS_INODE(page)) {
err = recover_inode(entry->inode, page);
- if (err)
- goto out;
+ if (err == -ENOENT) {
+ goto next;
+ } else if (err) {
+ err = -EINVAL;
+ goto unlock_out;
+ }
}
next:
/* check next segment */
blkaddr = next_blkaddr_of_node(page);
- ClearPageUptodate(page);
}
-out:
+unlock_out:
unlock_page(page);
+out:
__free_pages(page, 0);
return err;
}
iput(inode);
}
-static void do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
+static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
struct page *page, block_t blkaddr)
{
unsigned int start, end;
struct dnode_of_data dn;
struct f2fs_summary sum;
struct node_info ni;
+ int err = 0;
+ int ilock;
start = start_bidx_of_node(ofs_of_node(page));
if (IS_INODE(page))
else
end = start + ADDRS_PER_BLOCK;
+ ilock = mutex_lock_op(sbi);
set_new_dnode(&dn, inode, NULL, NULL, 0);
- if (get_dnode_of_data(&dn, start, 0))
- return;
+
+ err = get_dnode_of_data(&dn, start, ALLOC_NODE);
+ if (err) {
+ mutex_unlock_op(sbi, ilock);
+ return err;
+ }
wait_on_page_writeback(dn.node_page);
recover_node_page(sbi, dn.node_page, &sum, &ni, blkaddr);
f2fs_put_dnode(&dn);
+ mutex_unlock_op(sbi, ilock);
+ return 0;
}
-static void recover_data(struct f2fs_sb_info *sbi,
+static int recover_data(struct f2fs_sb_info *sbi,
struct list_head *head, int type)
{
unsigned long long cp_ver = le64_to_cpu(sbi->ckpt->checkpoint_ver);
struct curseg_info *curseg;
struct page *page;
+ int err = 0;
block_t blkaddr;
/* get node pages in the current segment */
/* read node page */
page = alloc_page(GFP_NOFS | __GFP_ZERO);
if (IS_ERR(page))
- return;
+ return -ENOMEM;
+
lock_page(page);
while (1) {
struct fsync_inode_entry *entry;
- if (f2fs_readpage(sbi, page, blkaddr, READ_SYNC))
+ err = f2fs_readpage(sbi, page, blkaddr, READ_SYNC);
+ if (err)
goto out;
+ lock_page(page);
+
if (cp_ver != cpver_of_node(page))
- goto out;
+ goto unlock_out;
entry = get_fsync_inode(head, ino_of_node(page));
if (!entry)
goto next;
- do_recover_data(sbi, entry->inode, page, blkaddr);
+ err = do_recover_data(sbi, entry->inode, page, blkaddr);
+ if (err)
+ goto out;
if (entry->blkaddr == blkaddr) {
iput(entry->inode);
next:
/* check next segment */
blkaddr = next_blkaddr_of_node(page);
- ClearPageUptodate(page);
}
-out:
+unlock_out:
unlock_page(page);
+out:
__free_pages(page, 0);
- allocate_new_segments(sbi);
+ if (!err)
+ allocate_new_segments(sbi);
+ return err;
}
-void recover_fsync_data(struct f2fs_sb_info *sbi)
+int recover_fsync_data(struct f2fs_sb_info *sbi)
{
struct list_head inode_list;
+ int err;
fsync_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_inode_entry",
sizeof(struct fsync_inode_entry), NULL);
if (unlikely(!fsync_entry_slab))
- return;
+ return -ENOMEM;
INIT_LIST_HEAD(&inode_list);
/* step #1: find fsynced inode numbers */
- if (find_fsync_dnodes(sbi, &inode_list))
+ err = find_fsync_dnodes(sbi, &inode_list);
+ if (err)
goto out;
if (list_empty(&inode_list))
/* step #2: recover data */
sbi->por_doing = 1;
- recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
+ err = recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
sbi->por_doing = 0;
BUG_ON(!list_empty(&inode_list));
out:
destroy_fsync_dnodes(sbi, &inode_list);
kmem_cache_destroy(fsync_entry_slab);
write_checkpoint(sbi, false);
+ return err;
}
#include "f2fs.h"
#include "segment.h"
#include "node.h"
+#include <trace/events/f2fs.h>
/*
* This function balances dirty node and dentry pages.
if (dirty_type == DIRTY) {
struct seg_entry *sentry = get_seg_entry(sbi, segno);
+ enum dirty_type t = DIRTY_HOT_DATA;
+
dirty_type = sentry->type;
+
if (!test_and_set_bit(segno, dirty_i->dirty_segmap[dirty_type]))
dirty_i->nr_dirty[dirty_type]++;
+
+ /* Only one bitmap should be set */
+ for (; t <= DIRTY_COLD_NODE; t++) {
+ if (t == dirty_type)
+ continue;
+ if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
+ dirty_i->nr_dirty[t]--;
+ }
}
}
dirty_i->nr_dirty[dirty_type]--;
if (dirty_type == DIRTY) {
- struct seg_entry *sentry = get_seg_entry(sbi, segno);
- dirty_type = sentry->type;
- if (test_and_clear_bit(segno,
- dirty_i->dirty_segmap[dirty_type]))
- dirty_i->nr_dirty[dirty_type]--;
- clear_bit(segno, dirty_i->victim_segmap[FG_GC]);
- clear_bit(segno, dirty_i->victim_segmap[BG_GC]);
+ enum dirty_type t = DIRTY_HOT_DATA;
+
+ /* clear all the bitmaps */
+ for (; t <= DIRTY_COLD_NODE; t++)
+ if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
+ dirty_i->nr_dirty[t]--;
+
+ if (get_valid_blocks(sbi, segno, sbi->segs_per_sec) == 0)
+ clear_bit(GET_SECNO(sbi, segno),
+ dirty_i->victim_secmap);
}
}
f2fs_put_page(page, 1);
}
-static unsigned int check_prefree_segments(struct f2fs_sb_info *sbi,
- int ofs_unit, int type)
+static unsigned int check_prefree_segments(struct f2fs_sb_info *sbi, int type)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
unsigned long *prefree_segmap = dirty_i->dirty_segmap[PRE];
- unsigned int segno, next_segno, i;
- int ofs = 0;
+ unsigned int segno;
+ unsigned int ofs = 0;
/*
* If there is not enough reserved sections,
if (IS_NODESEG(type))
return NULL_SEGNO;
next:
- segno = find_next_bit(prefree_segmap, TOTAL_SEGS(sbi), ofs++);
- ofs = ((segno / ofs_unit) * ofs_unit) + ofs_unit;
+ segno = find_next_bit(prefree_segmap, TOTAL_SEGS(sbi), ofs);
+ ofs += sbi->segs_per_sec;
+
if (segno < TOTAL_SEGS(sbi)) {
+ int i;
+
/* skip intermediate segments in a section */
- if (segno % ofs_unit)
+ if (segno % sbi->segs_per_sec)
goto next;
- /* skip if whole section is not prefree */
- next_segno = find_next_zero_bit(prefree_segmap,
- TOTAL_SEGS(sbi), segno + 1);
- if (next_segno - segno < ofs_unit)
+ /* skip if the section is currently used */
+ if (sec_usage_check(sbi, GET_SECNO(sbi, segno)))
goto next;
+ /* skip if whole section is not prefree */
+ for (i = 1; i < sbi->segs_per_sec; i++)
+ if (!test_bit(segno + i, prefree_segmap))
+ goto next;
+
/* skip if whole section was not free at the last checkpoint */
- for (i = 0; i < ofs_unit; i++)
- if (get_seg_entry(sbi, segno)->ckpt_valid_blocks)
+ for (i = 0; i < sbi->segs_per_sec; i++)
+ if (get_seg_entry(sbi, segno + i)->ckpt_valid_blocks)
goto next;
+
return segno;
}
return NULL_SEGNO;
}
+static int is_next_segment_free(struct f2fs_sb_info *sbi, int type)
+{
+ struct curseg_info *curseg = CURSEG_I(sbi, type);
+ unsigned int segno = curseg->segno;
+ struct free_segmap_info *free_i = FREE_I(sbi);
+
+ if (segno + 1 < TOTAL_SEGS(sbi) && (segno + 1) % sbi->segs_per_sec)
+ return !test_bit(segno + 1, free_i->free_segmap);
+ return 0;
+}
+
/*
* Find a new segment from the free segments bitmap to right order
* This function should be returned with success, otherwise BUG
unsigned int *newseg, bool new_sec, int dir)
{
struct free_segmap_info *free_i = FREE_I(sbi);
- unsigned int total_secs = sbi->total_sections;
unsigned int segno, secno, zoneno;
- unsigned int total_zones = sbi->total_sections / sbi->secs_per_zone;
+ unsigned int total_zones = TOTAL_SECS(sbi) / sbi->secs_per_zone;
unsigned int hint = *newseg / sbi->segs_per_sec;
unsigned int old_zoneno = GET_ZONENO_FROM_SEGNO(sbi, *newseg);
unsigned int left_start = hint;
if (!new_sec && ((*newseg + 1) % sbi->segs_per_sec)) {
segno = find_next_zero_bit(free_i->free_segmap,
TOTAL_SEGS(sbi), *newseg + 1);
- if (segno < TOTAL_SEGS(sbi))
+ if (segno - *newseg < sbi->segs_per_sec -
+ (*newseg % sbi->segs_per_sec))
goto got_it;
}
find_other_zone:
- secno = find_next_zero_bit(free_i->free_secmap, total_secs, hint);
- if (secno >= total_secs) {
+ secno = find_next_zero_bit(free_i->free_secmap, TOTAL_SECS(sbi), hint);
+ if (secno >= TOTAL_SECS(sbi)) {
if (dir == ALLOC_RIGHT) {
secno = find_next_zero_bit(free_i->free_secmap,
- total_secs, 0);
- BUG_ON(secno >= total_secs);
+ TOTAL_SECS(sbi), 0);
+ BUG_ON(secno >= TOTAL_SECS(sbi));
} else {
go_left = 1;
left_start = hint - 1;
continue;
}
left_start = find_next_zero_bit(free_i->free_secmap,
- total_secs, 0);
- BUG_ON(left_start >= total_secs);
+ TOTAL_SECS(sbi), 0);
+ BUG_ON(left_start >= TOTAL_SECS(sbi));
break;
}
secno = left_start;
int type, bool force)
{
struct curseg_info *curseg = CURSEG_I(sbi, type);
- unsigned int ofs_unit;
if (force) {
new_curseg(sbi, type, true);
goto out;
}
- ofs_unit = need_SSR(sbi) ? 1 : sbi->segs_per_sec;
- curseg->next_segno = check_prefree_segments(sbi, ofs_unit, type);
+ curseg->next_segno = check_prefree_segments(sbi, type);
if (curseg->next_segno != NULL_SEGNO)
change_curseg(sbi, type, false);
else if (type == CURSEG_WARM_NODE)
new_curseg(sbi, type, false);
+ else if (curseg->alloc_type == LFS && is_next_segment_free(sbi, type))
+ new_curseg(sbi, type, false);
else if (need_SSR(sbi) && get_ssr_segment(sbi, type))
change_curseg(sbi, type, true);
else
if (type >= META_FLUSH)
rw = WRITE_FLUSH_FUA;
+ if (btype == META)
+ rw |= REQ_META;
+
if (sbi->bio[btype]) {
struct bio_private *p = sbi->bio[btype]->bi_private;
p->sbi = sbi;
sbi->bio[btype]->bi_end_io = f2fs_end_io_write;
+
+ trace_f2fs_do_submit_bio(sbi->sb, btype, sync, sbi->bio[btype]);
+
if (type == META_FLUSH) {
DECLARE_COMPLETION_ONSTACK(wait);
p->is_sync = true;
do_submit_bio(sbi, type, false);
alloc_new:
if (sbi->bio[type] == NULL) {
- sbi->bio[type] = f2fs_bio_alloc(bdev, bio_get_nr_vecs(bdev));
+ sbi->bio[type] = f2fs_bio_alloc(bdev, max_hw_blocks(sbi));
sbi->bio[type]->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
/*
* The end_io will be assigned at the sumbission phase.
sbi->last_block_in_bio[type] = blk_addr;
up_write(&sbi->bio_sem);
+ trace_f2fs_submit_write_page(page, blk_addr, type);
}
static bool __has_curseg_space(struct f2fs_sb_info *sbi, int type)
}
if (sbi->segs_per_sec > 1) {
- sit_i->sec_entries = vzalloc(sbi->total_sections *
+ sit_i->sec_entries = vzalloc(TOTAL_SECS(sbi) *
sizeof(struct sec_entry));
if (!sit_i->sec_entries)
return -ENOMEM;
bitmap_size = __bitmap_size(sbi, SIT_BITMAP);
src_bitmap = __bitmap_ptr(sbi, SIT_BITMAP);
- dst_bitmap = kzalloc(bitmap_size, GFP_KERNEL);
+ dst_bitmap = kmemdup(src_bitmap, bitmap_size, GFP_KERNEL);
if (!dst_bitmap)
return -ENOMEM;
- memcpy(dst_bitmap, src_bitmap, bitmap_size);
/* init SIT information */
sit_i->s_ops = &default_salloc_ops;
if (!free_i->free_segmap)
return -ENOMEM;
- sec_bitmap_size = f2fs_bitmap_size(sbi->total_sections);
+ sec_bitmap_size = f2fs_bitmap_size(TOTAL_SECS(sbi));
free_i->free_secmap = kmalloc(sec_bitmap_size, GFP_KERNEL);
if (!free_i->free_secmap)
return -ENOMEM;
}
}
-static int init_victim_segmap(struct f2fs_sb_info *sbi)
+static int init_victim_secmap(struct f2fs_sb_info *sbi)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
- unsigned int bitmap_size = f2fs_bitmap_size(TOTAL_SEGS(sbi));
+ unsigned int bitmap_size = f2fs_bitmap_size(TOTAL_SECS(sbi));
- dirty_i->victim_segmap[FG_GC] = kzalloc(bitmap_size, GFP_KERNEL);
- dirty_i->victim_segmap[BG_GC] = kzalloc(bitmap_size, GFP_KERNEL);
- if (!dirty_i->victim_segmap[FG_GC] || !dirty_i->victim_segmap[BG_GC])
+ dirty_i->victim_secmap = kzalloc(bitmap_size, GFP_KERNEL);
+ if (!dirty_i->victim_secmap)
return -ENOMEM;
return 0;
}
}
init_dirty_segmap(sbi);
- return init_victim_segmap(sbi);
+ return init_victim_secmap(sbi);
}
/*
mutex_unlock(&dirty_i->seglist_lock);
}
-void reset_victim_segmap(struct f2fs_sb_info *sbi)
-{
- unsigned int bitmap_size = f2fs_bitmap_size(TOTAL_SEGS(sbi));
- memset(DIRTY_I(sbi)->victim_segmap[FG_GC], 0, bitmap_size);
-}
-
-static void destroy_victim_segmap(struct f2fs_sb_info *sbi)
+static void destroy_victim_secmap(struct f2fs_sb_info *sbi)
{
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
-
- kfree(dirty_i->victim_segmap[FG_GC]);
- kfree(dirty_i->victim_segmap[BG_GC]);
+ kfree(dirty_i->victim_secmap);
}
static void destroy_dirty_segmap(struct f2fs_sb_info *sbi)
for (i = 0; i < NR_DIRTY_TYPE; i++)
discard_dirty_segmap(sbi, i);
- destroy_victim_segmap(sbi);
+ destroy_victim_secmap(sbi);
SM_I(sbi)->dirty_info = NULL;
kfree(dirty_i);
}
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+#include <linux/blkdev.h>
+
/* constant macro */
#define NULL_SEGNO ((unsigned int)(~0))
+#define NULL_SECNO ((unsigned int)(~0))
-/* V: Logical segment # in volume, R: Relative segment # in main area */
+/* L: Logical segment # in volume, R: Relative segment # in main area */
#define GET_L2R_SEGNO(free_i, segno) (segno - free_i->start_segno)
#define GET_R2L_SEGNO(free_i, segno) (segno + free_i->start_segno)
((t == CURSEG_HOT_NODE) || (t == CURSEG_COLD_NODE) || \
(t == CURSEG_WARM_NODE))
-#define IS_CURSEG(sbi, segno) \
- ((segno == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno) || \
- (segno == CURSEG_I(sbi, CURSEG_WARM_DATA)->segno) || \
- (segno == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno) || \
- (segno == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno) || \
- (segno == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno) || \
- (segno == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno))
+#define IS_CURSEG(sbi, seg) \
+ ((seg == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno) || \
+ (seg == CURSEG_I(sbi, CURSEG_WARM_DATA)->segno) || \
+ (seg == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno) || \
+ (seg == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno) || \
+ (seg == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno) || \
+ (seg == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno))
#define IS_CURSEC(sbi, secno) \
((secno == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno / \
#define f2fs_bitmap_size(nr) \
(BITS_TO_LONGS(nr) * sizeof(unsigned long))
#define TOTAL_SEGS(sbi) (SM_I(sbi)->main_segments)
+#define TOTAL_SECS(sbi) (sbi->total_sections)
#define SECTOR_FROM_BLOCK(sbi, blk_addr) \
(blk_addr << ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
+#define SECTOR_TO_BLOCK(sbi, sectors) \
+ (sectors >> ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
/* during checkpoint, bio_private is used to synchronize the last bio */
struct bio_private {
unsigned long *dirty_segmap[NR_DIRTY_TYPE];
struct mutex seglist_lock; /* lock for segment bitmaps */
int nr_dirty[NR_DIRTY_TYPE]; /* # of dirty segments */
- unsigned long *victim_segmap[2]; /* BG_GC, FG_GC */
+ unsigned long *victim_secmap; /* background GC victims */
};
/* victim selection function for cleaning and SSR */
static inline int utilization(struct f2fs_sb_info *sbi)
{
- return (long int)valid_user_blocks(sbi) * 100 /
- (long int)sbi->user_block_count;
+ return div_u64(valid_user_blocks(sbi) * 100, sbi->user_block_count);
}
/*
le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_total_block_count)
- (base + 1) + type;
}
+
+static inline bool sec_usage_check(struct f2fs_sb_info *sbi, unsigned int secno)
+{
+ if (IS_CURSEC(sbi, secno) || (sbi->cur_victim_sec == secno))
+ return true;
+ return false;
+}
+
+static inline unsigned int max_hw_blocks(struct f2fs_sb_info *sbi)
+{
+ struct block_device *bdev = sbi->sb->s_bdev;
+ struct request_queue *q = bdev_get_queue(bdev);
+ return SECTOR_TO_BLOCK(sbi, queue_max_sectors(q));
+}
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/statfs.h>
-#include <linux/proc_fs.h>
#include <linux/buffer_head.h>
#include <linux/backing-dev.h>
#include <linux/kthread.h>
#include <linux/seq_file.h>
#include <linux/random.h>
#include <linux/exportfs.h>
+#include <linux/blkdev.h>
#include <linux/f2fs_fs.h>
#include "f2fs.h"
#include "node.h"
+#include "segment.h"
#include "xattr.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/f2fs.h>
+
static struct kmem_cache *f2fs_inode_cachep;
enum {
return &fi->vfs_inode;
}
+static int f2fs_drop_inode(struct inode *inode)
+{
+ /*
+ * This is to avoid a deadlock condition like below.
+ * writeback_single_inode(inode)
+ * - f2fs_write_data_page
+ * - f2fs_gc -> iput -> evict
+ * - inode_wait_for_writeback(inode)
+ */
+ if (!inode_unhashed(inode) && inode->i_state & I_SYNC)
+ return 0;
+ return generic_drop_inode(inode);
+}
+
static void f2fs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ trace_f2fs_sync_fs(sb, sync);
+
if (!sbi->s_dirty && !get_pages(sbi, F2FS_DIRTY_NODES))
return 0;
- if (sync)
+ if (sync) {
+ mutex_lock(&sbi->gc_mutex);
write_checkpoint(sbi, false);
- else
+ mutex_unlock(&sbi->gc_mutex);
+ } else {
f2fs_balance_fs(sbi);
+ }
return 0;
}
buf->f_files = sbi->total_node_count;
buf->f_ffree = sbi->total_node_count - valid_inode_count(sbi);
- buf->f_namelen = F2FS_MAX_NAME_LEN;
+ buf->f_namelen = F2FS_NAME_LEN;
buf->f_fsid.val[0] = (u32)id;
buf->f_fsid.val[1] = (u32)(id >> 32);
static struct super_operations f2fs_sops = {
.alloc_inode = f2fs_alloc_inode,
+ .drop_inode = f2fs_drop_inode,
.destroy_inode = f2fs_destroy_inode,
.write_inode = f2fs_write_inode,
.show_options = f2fs_show_options,
sbi->root_ino_num = le32_to_cpu(raw_super->root_ino);
sbi->node_ino_num = le32_to_cpu(raw_super->node_ino);
sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino);
+ sbi->cur_victim_sec = NULL_SECNO;
for (i = 0; i < NR_COUNT_TYPE; i++)
atomic_set(&sbi->nr_pages[i], 0);
if (!*raw_super_buf) {
f2fs_msg(sb, KERN_ERR, "unable to read %s superblock",
super);
- return 1;
+ return -EIO;
}
*raw_super = (struct f2fs_super_block *)
f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem "
"in %s superblock", super);
- return 1;
+ return -EINVAL;
}
static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
goto free_sbi;
}
- if (validate_superblock(sb, &raw_super, &raw_super_buf, 0)) {
+ err = validate_superblock(sb, &raw_super, &raw_super_buf, 0);
+ if (err) {
brelse(raw_super_buf);
- if (validate_superblock(sb, &raw_super, &raw_super_buf, 1))
+ /* check secondary superblock when primary failed */
+ err = validate_superblock(sb, &raw_super, &raw_super_buf, 1);
+ if (err)
goto free_sb_buf;
}
/* init some FS parameters */
set_opt(sbi, POSIX_ACL);
#endif
/* parse mount options */
- if (parse_options(sb, sbi, (char *)data))
+ err = parse_options(sb, sbi, (char *)data);
+ if (err)
goto free_sb_buf;
sb->s_maxbytes = max_file_size(le32_to_cpu(raw_super->log_blocksize));
sbi->raw_super = raw_super;
sbi->raw_super_buf = raw_super_buf;
mutex_init(&sbi->gc_mutex);
- mutex_init(&sbi->write_inode);
mutex_init(&sbi->writepages);
mutex_init(&sbi->cp_mutex);
- for (i = 0; i < NR_LOCK_TYPE; i++)
+ for (i = 0; i < NR_GLOBAL_LOCKS; i++)
mutex_init(&sbi->fs_lock[i]);
+ mutex_init(&sbi->node_write);
sbi->por_doing = 0;
spin_lock_init(&sbi->stat_lock);
init_rwsem(&sbi->bio_sem);
}
/* recover fsynced data */
- if (!test_opt(sbi, DISABLE_ROLL_FORWARD))
- recover_fsync_data(sbi);
+ if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) {
+ err = recover_fsync_data(sbi);
+ if (err)
+ f2fs_msg(sb, KERN_ERR,
+ "Cannot recover all fsync data errno=%ld", err);
+ }
/* After POR, we can run background GC thread */
err = start_gc_thread(sbi);
if (err)
goto fail;
+ if (test_opt(sbi, DISCARD)) {
+ struct request_queue *q = bdev_get_queue(sb->s_bdev);
+ if (!blk_queue_discard(q))
+ f2fs_msg(sb, KERN_WARNING,
+ "mounting with \"discard\" option, but "
+ "the device does not support discard");
+ }
+
return 0;
fail:
stop_gc_thread(sbi);
int error, found, free, newsize;
size_t name_len;
char *pval;
+ int ilock;
if (name == NULL)
return -EINVAL;
- name_len = strlen(name);
if (value == NULL)
value_len = 0;
- if (name_len > 255 || value_len > MAX_VALUE_LEN)
+ name_len = strlen(name);
+
+ if (name_len > F2FS_NAME_LEN || value_len > MAX_VALUE_LEN)
return -ERANGE;
f2fs_balance_fs(sbi);
- mutex_lock_op(sbi, NODE_NEW);
+ ilock = mutex_lock_op(sbi);
+
if (!fi->i_xattr_nid) {
/* Allocate new attribute block */
struct dnode_of_data dn;
if (!alloc_nid(sbi, &fi->i_xattr_nid)) {
- mutex_unlock_op(sbi, NODE_NEW);
- return -ENOSPC;
+ error = -ENOSPC;
+ goto exit;
}
set_new_dnode(&dn, inode, NULL, NULL, fi->i_xattr_nid);
mark_inode_dirty(inode);
if (IS_ERR(page)) {
alloc_nid_failed(sbi, fi->i_xattr_nid);
fi->i_xattr_nid = 0;
- mutex_unlock_op(sbi, NODE_NEW);
- return PTR_ERR(page);
+ error = PTR_ERR(page);
+ goto exit;
}
alloc_nid_done(sbi, fi->i_xattr_nid);
/* The inode already has an extended attribute block. */
page = get_node_page(sbi, fi->i_xattr_nid);
if (IS_ERR(page)) {
- mutex_unlock_op(sbi, NODE_NEW);
- return PTR_ERR(page);
+ error = PTR_ERR(page);
+ goto exit;
}
base_addr = page_address(page);
inode->i_ctime = CURRENT_TIME;
clear_inode_flag(fi, FI_ACL_MODE);
}
- f2fs_write_inode(inode, NULL);
- mutex_unlock_op(sbi, NODE_NEW);
+ update_inode_page(inode);
+ mutex_unlock_op(sbi, ilock);
return 0;
cleanup:
f2fs_put_page(page, 1);
- mutex_unlock_op(sbi, NODE_NEW);
+exit:
+ mutex_unlock_op(sbi, ilock);
return error;
}
__le32 len; /* lengh of the extent */
} __packed;
-#define F2FS_MAX_NAME_LEN 256
+#define F2FS_NAME_LEN 255
#define ADDRS_PER_INODE 923 /* Address Pointers in an Inode */
#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */
#define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */
__le32 i_flags; /* file attributes */
__le32 i_pino; /* parent inode number */
__le32 i_namelen; /* file name length */
- __u8 i_name[F2FS_MAX_NAME_LEN]; /* file name for SPOR */
+ __u8 i_name[F2FS_NAME_LEN]; /* file name for SPOR */
+ __u8 i_reserved2; /* for backward compatibility */
struct f2fs_extent i_ext; /* caching a largest extent */
typedef __le32 f2fs_hash_t;
/* One directory entry slot covers 8bytes-long file name */
-#define F2FS_NAME_LEN 8
-#define F2FS_NAME_LEN_BITS 3
+#define F2FS_SLOT_LEN 8
+#define F2FS_SLOT_LEN_BITS 3
-#define GET_DENTRY_SLOTS(x) ((x + F2FS_NAME_LEN - 1) >> F2FS_NAME_LEN_BITS)
+#define GET_DENTRY_SLOTS(x) ((x + F2FS_SLOT_LEN - 1) >> F2FS_SLOT_LEN_BITS)
/* the number of dentry in a block */
#define NR_DENTRY_IN_BLOCK 214
#define SIZE_OF_DENTRY_BITMAP ((NR_DENTRY_IN_BLOCK + BITS_PER_BYTE - 1) / \
BITS_PER_BYTE)
#define SIZE_OF_RESERVED (PAGE_SIZE - ((SIZE_OF_DIR_ENTRY + \
- F2FS_NAME_LEN) * \
+ F2FS_SLOT_LEN) * \
NR_DENTRY_IN_BLOCK + SIZE_OF_DENTRY_BITMAP))
-/* One directory entry slot representing F2FS_NAME_LEN-sized file name */
+/* One directory entry slot representing F2FS_SLOT_LEN-sized file name */
struct f2fs_dir_entry {
__le32 hash_code; /* hash code of file name */
__le32 ino; /* inode number */
__u8 dentry_bitmap[SIZE_OF_DENTRY_BITMAP];
__u8 reserved[SIZE_OF_RESERVED];
struct f2fs_dir_entry dentry[NR_DENTRY_IN_BLOCK];
- __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_NAME_LEN];
+ __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN];
} __packed;
/* file types used in inode_info->flags */
--- /dev/null
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM f2fs
+
+#if !defined(_TRACE_F2FS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_F2FS_H
+
+#include <linux/tracepoint.h>
+
+#define show_dev(entry) MAJOR(entry->dev), MINOR(entry->dev)
+#define show_dev_ino(entry) show_dev(entry), (unsigned long)entry->ino
+
+#define show_block_type(type) \
+ __print_symbolic(type, \
+ { NODE, "NODE" }, \
+ { DATA, "DATA" }, \
+ { META, "META" }, \
+ { META_FLUSH, "META_FLUSH" })
+
+#define show_bio_type(type) \
+ __print_symbolic(type, \
+ { READ, "READ" }, \
+ { READA, "READAHEAD" }, \
+ { READ_SYNC, "READ_SYNC" }, \
+ { WRITE, "WRITE" }, \
+ { WRITE_SYNC, "WRITE_SYNC" }, \
+ { WRITE_FLUSH, "WRITE_FLUSH" }, \
+ { WRITE_FUA, "WRITE_FUA" })
+
+#define show_data_type(type) \
+ __print_symbolic(type, \
+ { CURSEG_HOT_DATA, "Hot DATA" }, \
+ { CURSEG_WARM_DATA, "Warm DATA" }, \
+ { CURSEG_COLD_DATA, "Cold DATA" }, \
+ { CURSEG_HOT_NODE, "Hot NODE" }, \
+ { CURSEG_WARM_NODE, "Warm NODE" }, \
+ { CURSEG_COLD_NODE, "Cold NODE" }, \
+ { NO_CHECK_TYPE, "No TYPE" })
+
+#define show_gc_type(type) \
+ __print_symbolic(type, \
+ { FG_GC, "Foreground GC" }, \
+ { BG_GC, "Background GC" })
+
+#define show_alloc_mode(type) \
+ __print_symbolic(type, \
+ { LFS, "LFS-mode" }, \
+ { SSR, "SSR-mode" })
+
+#define show_victim_policy(type) \
+ __print_symbolic(type, \
+ { GC_GREEDY, "Greedy" }, \
+ { GC_CB, "Cost-Benefit" })
+
+struct victim_sel_policy;
+
+DECLARE_EVENT_CLASS(f2fs__inode,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(ino_t, pino)
+ __field(umode_t, mode)
+ __field(loff_t, size)
+ __field(unsigned int, nlink)
+ __field(blkcnt_t, blocks)
+ __field(__u8, advise)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->pino = F2FS_I(inode)->i_pino;
+ __entry->mode = inode->i_mode;
+ __entry->nlink = inode->i_nlink;
+ __entry->size = inode->i_size;
+ __entry->blocks = inode->i_blocks;
+ __entry->advise = F2FS_I(inode)->i_advise;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, pino = %lu, i_mode = 0x%hx, "
+ "i_size = %lld, i_nlink = %u, i_blocks = %llu, i_advise = 0x%x",
+ show_dev_ino(__entry),
+ (unsigned long)__entry->pino,
+ __entry->mode,
+ __entry->size,
+ (unsigned int)__entry->nlink,
+ (unsigned long long)__entry->blocks,
+ (unsigned char)__entry->advise)
+);
+
+DECLARE_EVENT_CLASS(f2fs__inode_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, ret = %d",
+ show_dev_ino(__entry),
+ __entry->ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_sync_file_enter,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+TRACE_EVENT(f2fs_sync_file_exit,
+
+ TP_PROTO(struct inode *inode, bool need_cp, int datasync, int ret),
+
+ TP_ARGS(inode, need_cp, datasync, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(bool, need_cp)
+ __field(int, datasync)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->need_cp = need_cp;
+ __entry->datasync = datasync;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, checkpoint is %s, "
+ "datasync = %d, ret = %d",
+ show_dev_ino(__entry),
+ __entry->need_cp ? "needed" : "not needed",
+ __entry->datasync,
+ __entry->ret)
+);
+
+TRACE_EVENT(f2fs_sync_fs,
+
+ TP_PROTO(struct super_block *sb, int wait),
+
+ TP_ARGS(sb, wait),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, dirty)
+ __field(int, wait)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->dirty = F2FS_SB(sb)->s_dirty;
+ __entry->wait = wait;
+ ),
+
+ TP_printk("dev = (%d,%d), superblock is %s, wait = %d",
+ show_dev(__entry),
+ __entry->dirty ? "dirty" : "not dirty",
+ __entry->wait)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_iget,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_iget_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_evict_inode,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_new_inode,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+TRACE_EVENT(f2fs_unlink_enter,
+
+ TP_PROTO(struct inode *dir, struct dentry *dentry),
+
+ TP_ARGS(dir, dentry),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(loff_t, size)
+ __field(blkcnt_t, blocks)
+ __field(const char *, name)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = dir->i_sb->s_dev;
+ __entry->ino = dir->i_ino;
+ __entry->size = dir->i_size;
+ __entry->blocks = dir->i_blocks;
+ __entry->name = dentry->d_name.name;
+ ),
+
+ TP_printk("dev = (%d,%d), dir ino = %lu, i_size = %lld, "
+ "i_blocks = %llu, name = %s",
+ show_dev_ino(__entry),
+ __entry->size,
+ (unsigned long long)__entry->blocks,
+ __entry->name)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_unlink_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_truncate,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+TRACE_EVENT(f2fs_truncate_data_blocks_range,
+
+ TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs, int free),
+
+ TP_ARGS(inode, nid, ofs, free),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(nid_t, nid)
+ __field(unsigned int, ofs)
+ __field(int, free)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->nid = nid;
+ __entry->ofs = ofs;
+ __entry->free = free;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, nid = %u, offset = %u, freed = %d",
+ show_dev_ino(__entry),
+ (unsigned int)__entry->nid,
+ __entry->ofs,
+ __entry->free)
+);
+
+DECLARE_EVENT_CLASS(f2fs__truncate_op,
+
+ TP_PROTO(struct inode *inode, u64 from),
+
+ TP_ARGS(inode, from),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(loff_t, size)
+ __field(blkcnt_t, blocks)
+ __field(u64, from)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->size = inode->i_size;
+ __entry->blocks = inode->i_blocks;
+ __entry->from = from;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, i_size = %lld, i_blocks = %llu, "
+ "start file offset = %llu",
+ show_dev_ino(__entry),
+ __entry->size,
+ (unsigned long long)__entry->blocks,
+ (unsigned long long)__entry->from)
+);
+
+DEFINE_EVENT(f2fs__truncate_op, f2fs_truncate_blocks_enter,
+
+ TP_PROTO(struct inode *inode, u64 from),
+
+ TP_ARGS(inode, from)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_truncate_blocks_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__truncate_op, f2fs_truncate_inode_blocks_enter,
+
+ TP_PROTO(struct inode *inode, u64 from),
+
+ TP_ARGS(inode, from)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_truncate_inode_blocks_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+DECLARE_EVENT_CLASS(f2fs__truncate_node,
+
+ TP_PROTO(struct inode *inode, nid_t nid, block_t blk_addr),
+
+ TP_ARGS(inode, nid, blk_addr),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(nid_t, nid)
+ __field(block_t, blk_addr)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->nid = nid;
+ __entry->blk_addr = blk_addr;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, nid = %u, block_address = 0x%llx",
+ show_dev_ino(__entry),
+ (unsigned int)__entry->nid,
+ (unsigned long long)__entry->blk_addr)
+);
+
+DEFINE_EVENT(f2fs__truncate_node, f2fs_truncate_nodes_enter,
+
+ TP_PROTO(struct inode *inode, nid_t nid, block_t blk_addr),
+
+ TP_ARGS(inode, nid, blk_addr)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_truncate_nodes_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__truncate_node, f2fs_truncate_node,
+
+ TP_PROTO(struct inode *inode, nid_t nid, block_t blk_addr),
+
+ TP_ARGS(inode, nid, blk_addr)
+);
+
+TRACE_EVENT(f2fs_truncate_partial_nodes,
+
+ TP_PROTO(struct inode *inode, nid_t nid[], int depth, int err),
+
+ TP_ARGS(inode, nid, depth, err),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(nid_t, nid[3])
+ __field(int, depth)
+ __field(int, err)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->nid[0] = nid[0];
+ __entry->nid[1] = nid[1];
+ __entry->nid[2] = nid[2];
+ __entry->depth = depth;
+ __entry->err = err;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, "
+ "nid[0] = %u, nid[1] = %u, nid[2] = %u, depth = %d, err = %d",
+ show_dev_ino(__entry),
+ (unsigned int)__entry->nid[0],
+ (unsigned int)__entry->nid[1],
+ (unsigned int)__entry->nid[2],
+ __entry->depth,
+ __entry->err)
+);
+
+TRACE_EVENT_CONDITION(f2fs_readpage,
+
+ TP_PROTO(struct page *page, sector_t blkaddr, int type),
+
+ TP_ARGS(page, blkaddr, type),
+
+ TP_CONDITION(page->mapping),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(pgoff_t, index)
+ __field(sector_t, blkaddr)
+ __field(int, type)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = page->mapping->host->i_sb->s_dev;
+ __entry->ino = page->mapping->host->i_ino;
+ __entry->index = page->index;
+ __entry->blkaddr = blkaddr;
+ __entry->type = type;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, page_index = 0x%lx, "
+ "blkaddr = 0x%llx, bio_type = %s",
+ show_dev_ino(__entry),
+ (unsigned long)__entry->index,
+ (unsigned long long)__entry->blkaddr,
+ show_bio_type(__entry->type))
+);
+
+TRACE_EVENT(f2fs_get_data_block,
+ TP_PROTO(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh, int ret),
+
+ TP_ARGS(inode, iblock, bh, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(sector_t, iblock)
+ __field(sector_t, bh_start)
+ __field(size_t, bh_size)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->iblock = iblock;
+ __entry->bh_start = bh->b_blocknr;
+ __entry->bh_size = bh->b_size;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, file offset = %llu, "
+ "start blkaddr = 0x%llx, len = 0x%llx bytes, err = %d",
+ show_dev_ino(__entry),
+ (unsigned long long)__entry->iblock,
+ (unsigned long long)__entry->bh_start,
+ (unsigned long long)__entry->bh_size,
+ __entry->ret)
+);
+
+TRACE_EVENT(f2fs_get_victim,
+
+ TP_PROTO(struct super_block *sb, int type, int gc_type,
+ struct victim_sel_policy *p, unsigned int pre_victim,
+ unsigned int prefree, unsigned int free),
+
+ TP_ARGS(sb, type, gc_type, p, pre_victim, prefree, free),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, type)
+ __field(int, gc_type)
+ __field(int, alloc_mode)
+ __field(int, gc_mode)
+ __field(unsigned int, victim)
+ __field(unsigned int, ofs_unit)
+ __field(unsigned int, pre_victim)
+ __field(unsigned int, prefree)
+ __field(unsigned int, free)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->type = type;
+ __entry->gc_type = gc_type;
+ __entry->alloc_mode = p->alloc_mode;
+ __entry->gc_mode = p->gc_mode;
+ __entry->victim = p->min_segno;
+ __entry->ofs_unit = p->ofs_unit;
+ __entry->pre_victim = pre_victim;
+ __entry->prefree = prefree;
+ __entry->free = free;
+ ),
+
+ TP_printk("dev = (%d,%d), type = %s, policy = (%s, %s, %s), victim = %u "
+ "ofs_unit = %u, pre_victim_secno = %d, prefree = %u, free = %u",
+ show_dev(__entry),
+ show_data_type(__entry->type),
+ show_gc_type(__entry->gc_type),
+ show_alloc_mode(__entry->alloc_mode),
+ show_victim_policy(__entry->gc_mode),
+ __entry->victim,
+ __entry->ofs_unit,
+ (int)__entry->pre_victim,
+ __entry->prefree,
+ __entry->free)
+);
+
+TRACE_EVENT(f2fs_fallocate,
+
+ TP_PROTO(struct inode *inode, int mode,
+ loff_t offset, loff_t len, int ret),
+
+ TP_ARGS(inode, mode, offset, len, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(int, mode)
+ __field(loff_t, offset)
+ __field(loff_t, len)
+ __field(loff_t, size)
+ __field(blkcnt_t, blocks)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->mode = mode;
+ __entry->offset = offset;
+ __entry->len = len;
+ __entry->size = inode->i_size;
+ __entry->blocks = inode->i_blocks;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, mode = %x, offset = %lld, "
+ "len = %lld, i_size = %lld, i_blocks = %llu, ret = %d",
+ show_dev_ino(__entry),
+ __entry->mode,
+ (unsigned long long)__entry->offset,
+ (unsigned long long)__entry->len,
+ (unsigned long long)__entry->size,
+ (unsigned long long)__entry->blocks,
+ __entry->ret)
+);
+
+TRACE_EVENT(f2fs_reserve_new_block,
+
+ TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node),
+
+ TP_ARGS(inode, nid, ofs_in_node),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(nid_t, nid)
+ __field(unsigned int, ofs_in_node)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->nid = nid;
+ __entry->ofs_in_node = ofs_in_node;
+ ),
+
+ TP_printk("dev = (%d,%d), nid = %u, ofs_in_node = %u",
+ show_dev(__entry),
+ (unsigned int)__entry->nid,
+ __entry->ofs_in_node)
+);
+
+TRACE_EVENT(f2fs_do_submit_bio,
+
+ TP_PROTO(struct super_block *sb, int btype, bool sync, struct bio *bio),
+
+ TP_ARGS(sb, btype, sync, bio),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, btype)
+ __field(bool, sync)
+ __field(sector_t, sector)
+ __field(unsigned int, size)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->btype = btype;
+ __entry->sync = sync;
+ __entry->sector = bio->bi_sector;
+ __entry->size = bio->bi_size;
+ ),
+
+ TP_printk("dev = (%d,%d), type = %s, io = %s, sector = %lld, size = %u",
+ show_dev(__entry),
+ show_block_type(__entry->btype),
+ __entry->sync ? "sync" : "no sync",
+ (unsigned long long)__entry->sector,
+ __entry->size)
+);
+
+TRACE_EVENT(f2fs_submit_write_page,
+
+ TP_PROTO(struct page *page, block_t blk_addr, int type),
+
+ TP_ARGS(page, blk_addr, type),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(int, type)
+ __field(pgoff_t, index)
+ __field(block_t, block)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = page->mapping->host->i_sb->s_dev;
+ __entry->ino = page->mapping->host->i_ino;
+ __entry->type = type;
+ __entry->index = page->index;
+ __entry->block = blk_addr;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, %s, index = %lu, blkaddr = 0x%llx",
+ show_dev_ino(__entry),
+ show_block_type(__entry->type),
+ (unsigned long)__entry->index,
+ (unsigned long long)__entry->block)
+);
+
+TRACE_EVENT(f2fs_write_checkpoint,
+
+ TP_PROTO(struct super_block *sb, bool is_umount, char *msg),
+
+ TP_ARGS(sb, is_umount, msg),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(bool, is_umount)
+ __field(char *, msg)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->is_umount = is_umount;
+ __entry->msg = msg;
+ ),
+
+ TP_printk("dev = (%d,%d), checkpoint for %s, state = %s",
+ show_dev(__entry),
+ __entry->is_umount ? "clean umount" : "consistency",
+ __entry->msg)
+);
+
+#endif /* _TRACE_F2FS_H */
+
+ /* This part must be outside protection */
+#include <trace/define_trace.h>
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