btrfs: use enum for wq endio metadata type

The enum exists but is not consistently used.

Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index eeee138..d3220d3 100644 (file)
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -388,7 +388,8 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
                         * freed before we're done setting it up
                         */
                        atomic_inc(&cb->pending_bios);
-                       ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
+                       ret = btrfs_bio_wq_end_io(root->fs_info, bio,
+                                       BTRFS_WQ_ENDIO_DATA);
                        BUG_ON(ret); /* -ENOMEM */
 
                        if (!skip_sum) {
@@ -419,7 +420,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
        }
        bio_get(bio);
 
-       ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
+       ret = btrfs_bio_wq_end_io(root->fs_info, bio, BTRFS_WQ_ENDIO_DATA);
        BUG_ON(ret); /* -ENOMEM */
 
        if (!skip_sum) {
@@ -668,7 +669,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
                    PAGE_CACHE_SIZE) {
                        bio_get(comp_bio);
 
-                       ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
+                       ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
+                                       BTRFS_WQ_ENDIO_DATA);
                        BUG_ON(ret); /* -ENOMEM */
 
                        /*
@@ -706,7 +708,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
        }
        bio_get(comp_bio);
 
-       ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
+       ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio,
+                       BTRFS_WQ_ENDIO_DATA);
        BUG_ON(ret); /* -ENOMEM */
 
        if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9b2a741..d7cb58e 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -82,7 +82,7 @@ struct end_io_wq {
        void *private;
        struct btrfs_fs_info *info;
        int error;
-       int metadata;
+       enum btrfs_wq_endio_type metadata;
        struct list_head list;
        struct btrfs_work work;
 };
@@ -733,16 +733,8 @@ static void end_workqueue_bio(struct bio *bio, int err)
        btrfs_queue_work(wq, &end_io_wq->work);
 }
 
-/*
- * For the metadata arg you want
- *
- * 0 - if data
- * 1 - if normal metadta
- * 2 - if writing to the free space cache area
- * 3 - raid parity work
- */
 int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
-                       int metadata)
+                       enum btrfs_wq_endio_type metadata)
 {
        struct end_io_wq *end_io_wq;
 
@@ -930,7 +922,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio,
                 * can happen in the async kernel threads
                 */
                ret = btrfs_bio_wq_end_io(BTRFS_I(inode)->root->fs_info,
-                                         bio, 1);
+                                         bio, BTRFS_WQ_ENDIO_METADATA);
                if (ret)
                        goto out_w_error;
                ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,

diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 14d06ee..84da438 100644 (file)
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -25,7 +25,7 @@
 #define BTRFS_SUPER_MIRROR_MAX  3
 #define BTRFS_SUPER_MIRROR_SHIFT 12
 
-enum {
+enum btrfs_wq_endio_type {
        BTRFS_WQ_ENDIO_DATA = 0,
        BTRFS_WQ_ENDIO_METADATA = 1,
        BTRFS_WQ_ENDIO_FREE_SPACE = 2,
@@ -120,7 +120,7 @@ int btrfs_read_buffer(struct extent_buffer *buf, u64 parent_transid);
 u32 btrfs_csum_data(char *data, u32 seed, size_t len);
 void btrfs_csum_final(u32 crc, char *result);
 int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
-                       int metadata);
+                       enum btrfs_wq_endio_type metadata);
 int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
                        int rw, struct bio *bio, int mirror_num,
                        unsigned long bio_flags, u64 bio_offset,

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 344a322..b1e388d 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7721,7 +7721,8 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode,
        bio_get(bio);
 
        if (!write) {
-               ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
+               ret = btrfs_bio_wq_end_io(root->fs_info, bio,
+                               BTRFS_WQ_ENDIO_DATA);
                if (ret)
                        goto err;
        }