Q: Can I suspend-to-disk using a swap partition under LVM?
-A: No. You can suspend successfully, but you'll not be able to
-resume. uswsusp should be able to work with LVM. See suspend.sf.net.
+A: Yes and No. You can suspend successfully, but the kernel will not be able
+to resume on its own. You need an initramfs that can recognize the resume
+situation, activate the logical volume containing the swap volume (but not
+touch any filesystems!), and eventually call
+
+echo -n "$major:$minor" > /sys/power/resume
+
+where $major and $minor are the respective major and minor device numbers of
+the swap volume.
+
+uswsusp works with LVM, too. See http://suspend.sourceforge.net/
Q: I upgraded the kernel from 2.6.15 to 2.6.16. Both kernels were
compiled with the similar configuration files. Anyway I found that
F: arch/powerpc/oprofile/*cell*
F: arch/powerpc/platforms/cell/
-CEPH DISTRIBUTED FILE SYSTEM CLIENT
+CEPH COMMON CODE (LIBCEPH)
+M: Ilya Dryomov <idryomov@gmail.com>
M: "Yan, Zheng" <zyan@redhat.com>
M: Sage Weil <sage@redhat.com>
L: ceph-devel@vger.kernel.org
W: http://ceph.com/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
S: Supported
-F: Documentation/filesystems/ceph.txt
-F: fs/ceph/
F: net/ceph/
F: include/linux/ceph/
F: include/linux/crush/
+CEPH DISTRIBUTED FILE SYSTEM CLIENT (CEPH)
+M: "Yan, Zheng" <zyan@redhat.com>
+M: Sage Weil <sage@redhat.com>
+M: Ilya Dryomov <idryomov@gmail.com>
+L: ceph-devel@vger.kernel.org
+W: http://ceph.com/
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
+S: Supported
+F: Documentation/filesystems/ceph.txt
+F: fs/ceph/
+
CERTIFIED WIRELESS USB (WUSB) SUBSYSTEM:
L: linux-usb@vger.kernel.org
S: Orphan
M: Ilya Dryomov <idryomov@gmail.com>
M: Sage Weil <sage@redhat.com>
M: Alex Elder <elder@kernel.org>
-M: ceph-devel@vger.kernel.org
+L: ceph-devel@vger.kernel.org
W: http://ceph.com/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
+T: git git://github.com/ceph/ceph-client.git
S: Supported
+F: Documentation/ABI/testing/sysfs-bus-rbd
F: drivers/block/rbd.c
F: drivers/block/rbd_types.h
#define _ST(p, inst, v) \
({ \
asm("1: " #inst " %0, %1;" \
- ".pushsection .coldtext.memcpy,\"ax\";" \
+ ".pushsection .coldtext,\"ax\";" \
"2: { move r0, %2; jrp lr };" \
".section __ex_table,\"a\";" \
".align 8;" \
({ \
unsigned long __v; \
asm("1: " #inst " %0, %1;" \
- ".pushsection .coldtext.memcpy,\"ax\";" \
+ ".pushsection .coldtext,\"ax\";" \
"2: { move r0, %2; jrp lr };" \
".section __ex_table,\"a\";" \
".align 8;" \
pdata->mmio_size = resource_size(rentry->res);
pdata->mmio_base = ioremap(rentry->res->start,
pdata->mmio_size);
- if (!pdata->mmio_base)
- goto err_out;
break;
}
acpi_dev_free_resource_list(&resource_list);
+ if (!pdata->mmio_base) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
pdata->dev_desc = dev_desc;
if (dev_desc->setup)
if (!addr || !length)
return;
- acpi_reserve_region(addr, length, gas->space_id, 0, desc);
+ /* Resources are never freed */
+ if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+ request_region(addr, length, desc);
+ else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
+ request_mem_region(addr, length, desc);
}
-static void __init acpi_reserve_resources(void)
+static int __init acpi_reserve_resources(void)
{
acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block, acpi_gbl_FADT.pm1_event_length,
"ACPI PM1a_EVT_BLK");
if (!(acpi_gbl_FADT.gpe1_block_length & 0x1))
acpi_request_region(&acpi_gbl_FADT.xgpe1_block,
acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK");
+
+ return 0;
}
+fs_initcall_sync(acpi_reserve_resources);
void acpi_os_printf(const char *fmt, ...)
{
acpi_status __init acpi_os_initialize1(void)
{
- acpi_reserve_resources();
kacpid_wq = alloc_workqueue("kacpid", 0, 1);
kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1);
kacpi_hotplug_wq = alloc_ordered_workqueue("kacpi_hotplug", 0);
#include <linux/device.h>
#include <linux/export.h>
#include <linux/ioport.h>
-#include <linux/list.h>
#include <linux/slab.h>
#ifdef CONFIG_X86
return (type & types) ? 0 : 1;
}
EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type);
-
-struct reserved_region {
- struct list_head node;
- u64 start;
- u64 end;
-};
-
-static LIST_HEAD(reserved_io_regions);
-static LIST_HEAD(reserved_mem_regions);
-
-static int request_range(u64 start, u64 end, u8 space_id, unsigned long flags,
- char *desc)
-{
- unsigned int length = end - start + 1;
- struct resource *res;
-
- res = space_id == ACPI_ADR_SPACE_SYSTEM_IO ?
- request_region(start, length, desc) :
- request_mem_region(start, length, desc);
- if (!res)
- return -EIO;
-
- res->flags &= ~flags;
- return 0;
-}
-
-static int add_region_before(u64 start, u64 end, u8 space_id,
- unsigned long flags, char *desc,
- struct list_head *head)
-{
- struct reserved_region *reg;
- int error;
-
- reg = kmalloc(sizeof(*reg), GFP_KERNEL);
- if (!reg)
- return -ENOMEM;
-
- error = request_range(start, end, space_id, flags, desc);
- if (error) {
- kfree(reg);
- return error;
- }
-
- reg->start = start;
- reg->end = end;
- list_add_tail(®->node, head);
- return 0;
-}
-
-/**
- * acpi_reserve_region - Reserve an I/O or memory region as a system resource.
- * @start: Starting address of the region.
- * @length: Length of the region.
- * @space_id: Identifier of address space to reserve the region from.
- * @flags: Resource flags to clear for the region after requesting it.
- * @desc: Region description (for messages).
- *
- * Reserve an I/O or memory region as a system resource to prevent others from
- * using it. If the new region overlaps with one of the regions (in the given
- * address space) already reserved by this routine, only the non-overlapping
- * parts of it will be reserved.
- *
- * Returned is either 0 (success) or a negative error code indicating a resource
- * reservation problem. It is the code of the first encountered error, but the
- * routine doesn't abort until it has attempted to request all of the parts of
- * the new region that don't overlap with other regions reserved previously.
- *
- * The resources requested by this routine are never released.
- */
-int acpi_reserve_region(u64 start, unsigned int length, u8 space_id,
- unsigned long flags, char *desc)
-{
- struct list_head *regions;
- struct reserved_region *reg;
- u64 end = start + length - 1;
- int ret = 0, error = 0;
-
- if (space_id == ACPI_ADR_SPACE_SYSTEM_IO)
- regions = &reserved_io_regions;
- else if (space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
- regions = &reserved_mem_regions;
- else
- return -EINVAL;
-
- if (list_empty(regions))
- return add_region_before(start, end, space_id, flags, desc, regions);
-
- list_for_each_entry(reg, regions, node)
- if (reg->start == end + 1) {
- /* The new region can be prepended to this one. */
- ret = request_range(start, end, space_id, flags, desc);
- if (!ret)
- reg->start = start;
-
- return ret;
- } else if (reg->start > end) {
- /* No overlap. Add the new region here and get out. */
- return add_region_before(start, end, space_id, flags,
- desc, ®->node);
- } else if (reg->end == start - 1) {
- goto combine;
- } else if (reg->end >= start) {
- goto overlap;
- }
-
- /* The new region goes after the last existing one. */
- return add_region_before(start, end, space_id, flags, desc, regions);
-
- overlap:
- /*
- * The new region overlaps an existing one.
- *
- * The head part of the new region immediately preceding the existing
- * overlapping one can be combined with it right away.
- */
- if (reg->start > start) {
- error = request_range(start, reg->start - 1, space_id, flags, desc);
- if (error)
- ret = error;
- else
- reg->start = start;
- }
-
- combine:
- /*
- * The new region is adjacent to an existing one. If it extends beyond
- * that region all the way to the next one, it is possible to combine
- * all three of them.
- */
- while (reg->end < end) {
- struct reserved_region *next = NULL;
- u64 a = reg->end + 1, b = end;
-
- if (!list_is_last(®->node, regions)) {
- next = list_next_entry(reg, node);
- if (next->start <= end)
- b = next->start - 1;
- }
- error = request_range(a, b, space_id, flags, desc);
- if (!error) {
- if (next && next->start == b + 1) {
- reg->end = next->end;
- list_del(&next->node);
- kfree(next);
- } else {
- reg->end = end;
- break;
- }
- } else if (next) {
- if (!ret)
- ret = error;
-
- reg = next;
- } else {
- break;
- }
- }
-
- return ret ? ret : error;
-}
-EXPORT_SYMBOL_GPL(acpi_reserve_region);
return false;
}
+static bool __acpi_match_device_cls(const struct acpi_device_id *id,
+ struct acpi_hardware_id *hwid)
+{
+ int i, msk, byte_shift;
+ char buf[3];
+
+ if (!id->cls)
+ return false;
+
+ /* Apply class-code bitmask, before checking each class-code byte */
+ for (i = 1; i <= 3; i++) {
+ byte_shift = 8 * (3 - i);
+ msk = (id->cls_msk >> byte_shift) & 0xFF;
+ if (!msk)
+ continue;
+
+ sprintf(buf, "%02x", (id->cls >> byte_shift) & msk);
+ if (strncmp(buf, &hwid->id[(i - 1) * 2], 2))
+ return false;
+ }
+ return true;
+}
+
static const struct acpi_device_id *__acpi_match_device(
struct acpi_device *device,
const struct acpi_device_id *ids,
list_for_each_entry(hwid, &device->pnp.ids, list) {
/* First, check the ACPI/PNP IDs provided by the caller. */
- for (id = ids; id->id[0]; id++)
- if (!strcmp((char *) id->id, hwid->id))
+ for (id = ids; id->id[0] || id->cls; id++) {
+ if (id->id[0] && !strcmp((char *) id->id, hwid->id))
return id;
+ else if (id->cls && __acpi_match_device_cls(id, hwid))
+ return id;
+ }
/*
* Next, check ACPI_DT_NAMESPACE_HID and try to match the
if (info->valid & ACPI_VALID_UID)
pnp->unique_id = kstrdup(info->unique_id.string,
GFP_KERNEL);
+ if (info->valid & ACPI_VALID_CLS)
+ acpi_add_id(pnp, info->class_code.string);
kfree(info);
config ATA_ACPI
bool "ATA ACPI Support"
- depends on ACPI && PCI
+ depends on ACPI
default y
help
This option adds support for ATA-related ACPI objects.
#include <linux/platform_device.h>
#include <linux/libata.h>
#include <linux/ahci_platform.h>
+#include <linux/acpi.h>
+#include <linux/pci_ids.h>
#include "ahci.h"
#define DRV_NAME "ahci"
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
+static const struct acpi_device_id ahci_acpi_match[] = {
+ { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
+
static struct platform_driver ahci_driver = {
.probe = ahci_probe,
.remove = ata_platform_remove_one,
.driver = {
.name = DRV_NAME,
.of_match_table = ahci_of_match,
+ .acpi_match_table = ahci_acpi_match,
.pm = &ahci_pm_ops,
},
};
kfree(fw_priv);
}
-static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+static int do_firmware_uevent(struct firmware_priv *fw_priv, struct kobj_uevent_env *env)
{
- struct firmware_priv *fw_priv = to_firmware_priv(dev);
-
if (add_uevent_var(env, "FIRMWARE=%s", fw_priv->buf->fw_id))
return -ENOMEM;
if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout))
return 0;
}
+static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct firmware_priv *fw_priv = to_firmware_priv(dev);
+ int err = 0;
+
+ mutex_lock(&fw_lock);
+ if (fw_priv->buf)
+ err = do_firmware_uevent(fw_priv, env);
+ mutex_unlock(&fw_lock);
+ return err;
+}
+
static struct class firmware_class = {
.name = "firmware",
.class_attrs = firmware_class_attrs,
* This file is released under the GPLv2.
*/
+#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
#include <linux/export.h>
+#define GENPD_RETRY_MAX_MS 250 /* Approximate */
+
#define GENPD_DEV_CALLBACK(genpd, type, callback, dev) \
({ \
type (*__routine)(struct device *__d); \
static void genpd_dev_pm_detach(struct device *dev, bool power_off)
{
struct generic_pm_domain *pd;
+ unsigned int i;
int ret = 0;
pd = pm_genpd_lookup_dev(dev);
dev_dbg(dev, "removing from PM domain %s\n", pd->name);
- while (1) {
+ for (i = 1; i < GENPD_RETRY_MAX_MS; i <<= 1) {
ret = pm_genpd_remove_device(pd, dev);
if (ret != -EAGAIN)
break;
+
+ mdelay(i);
cond_resched();
}
{
struct of_phandle_args pd_args;
struct generic_pm_domain *pd;
+ unsigned int i;
int ret;
if (!dev->of_node)
dev_dbg(dev, "adding to PM domain %s\n", pd->name);
- while (1) {
+ for (i = 1; i < GENPD_RETRY_MAX_MS; i <<= 1) {
ret = pm_genpd_add_device(pd, dev);
if (ret != -EAGAIN)
break;
+
+ mdelay(i);
cond_resched();
}
return -EEXIST;
}
- dev->power.wakeirq = wirq;
- spin_unlock_irqrestore(&dev->power.lock, flags);
-
err = device_wakeup_attach_irq(dev, wirq);
- if (err)
- return err;
+ if (!err)
+ dev->power.wakeirq = wirq;
- return 0;
+ spin_unlock_irqrestore(&dev->power.lock, flags);
+ return err;
}
/**
return;
spin_lock_irqsave(&dev->power.lock, flags);
+ device_wakeup_detach_irq(dev);
dev->power.wakeirq = NULL;
spin_unlock_irqrestore(&dev->power.lock, flags);
- device_wakeup_detach_irq(dev);
if (wirq->dedicated_irq)
free_irq(wirq->irq, wirq);
kfree(wirq);
* Attach a device wakeirq to the wakeup source so the device
* wake IRQ can be configured automatically for suspend and
* resume.
+ *
+ * Call under the device's power.lock lock.
*/
int device_wakeup_attach_irq(struct device *dev,
struct wake_irq *wakeirq)
{
struct wakeup_source *ws;
- int ret = 0;
- spin_lock_irq(&dev->power.lock);
ws = dev->power.wakeup;
if (!ws) {
dev_err(dev, "forgot to call call device_init_wakeup?\n");
- ret = -EINVAL;
- goto unlock;
+ return -EINVAL;
}
- if (ws->wakeirq) {
- ret = -EEXIST;
- goto unlock;
- }
+ if (ws->wakeirq)
+ return -EEXIST;
ws->wakeirq = wakeirq;
-
-unlock:
- spin_unlock_irq(&dev->power.lock);
-
- return ret;
+ return 0;
}
/**
* @dev: Device to handle
*
* Removes a device wakeirq from the wakeup source.
+ *
+ * Call under the device's power.lock lock.
*/
void device_wakeup_detach_irq(struct device *dev)
{
struct wakeup_source *ws;
- spin_lock_irq(&dev->power.lock);
ws = dev->power.wakeup;
- if (!ws)
- goto unlock;
-
- ws->wakeirq = NULL;
-
-unlock:
- spin_unlock_irq(&dev->power.lock);
+ if (ws)
+ ws->wakeirq = NULL;
}
/**
* Bjorn Helgaas <bjorn.helgaas@hp.com>
*/
-#include <linux/acpi.h>
#include <linux/pnp.h>
#include <linux/device.h>
#include <linux/init.h>
{"", 0}
};
-#ifdef CONFIG_ACPI
-static bool __reserve_range(u64 start, unsigned int length, bool io, char *desc)
-{
- u8 space_id = io ? ACPI_ADR_SPACE_SYSTEM_IO : ACPI_ADR_SPACE_SYSTEM_MEMORY;
- return !acpi_reserve_region(start, length, space_id, IORESOURCE_BUSY, desc);
-}
-#else
-static bool __reserve_range(u64 start, unsigned int length, bool io, char *desc)
-{
- struct resource *res;
-
- res = io ? request_region(start, length, desc) :
- request_mem_region(start, length, desc);
- if (res) {
- res->flags &= ~IORESOURCE_BUSY;
- return true;
- }
- return false;
-}
-#endif
-
static void reserve_range(struct pnp_dev *dev, struct resource *r, int port)
{
char *regionid;
const char *pnpid = dev_name(&dev->dev);
resource_size_t start = r->start, end = r->end;
- bool reserved;
+ struct resource *res;
regionid = kmalloc(16, GFP_KERNEL);
if (!regionid)
return;
snprintf(regionid, 16, "pnp %s", pnpid);
- reserved = __reserve_range(start, end - start + 1, !!port, regionid);
- if (!reserved)
+ if (port)
+ res = request_region(start, end - start + 1, regionid);
+ else
+ res = request_mem_region(start, end - start + 1, regionid);
+ if (res)
+ res->flags &= ~IORESOURCE_BUSY;
+ else
kfree(regionid);
/*
* have double reservations.
*/
dev_info(&dev->dev, "%pR %s reserved\n", r,
- reserved ? "has been" : "could not be");
+ res ? "has been" : "could not be");
}
static void reserve_resources_of_dev(struct pnp_dev *dev)
/* 'X' - originally XFS but some now in the VFS */
COMPATIBLE_IOCTL(FIFREEZE)
COMPATIBLE_IOCTL(FITHAW)
+COMPATIBLE_IOCTL(FITRIM)
COMPATIBLE_IOCTL(KDGETKEYCODE)
COMPATIBLE_IOCTL(KDSETKEYCODE)
COMPATIBLE_IOCTL(KDGKBTYPE)
return rc;
switch (cmd) {
- case FITRIM:
case FS_IOC32_GETFLAGS:
case FS_IOC32_SETFLAGS:
case FS_IOC32_GETVERSION:
return err;
}
case EXT4_IOC_MOVE_EXT:
- case FITRIM:
case EXT4_IOC_RESIZE_FS:
case EXT4_IOC_PRECACHE_EXTENTS:
case EXT4_IOC_SET_ENCRYPTION_POLICY:
a->btree.first_free = cpu_to_le16(8);
return a;
}
+
+static unsigned find_run(__le32 *bmp, unsigned *idx)
+{
+ unsigned len;
+ while (tstbits(bmp, *idx, 1)) {
+ (*idx)++;
+ if (unlikely(*idx >= 0x4000))
+ return 0;
+ }
+ len = 1;
+ while (!tstbits(bmp, *idx + len, 1))
+ len++;
+ return len;
+}
+
+static int do_trim(struct super_block *s, secno start, unsigned len, secno limit_start, secno limit_end, unsigned minlen, unsigned *result)
+{
+ int err;
+ secno end;
+ if (fatal_signal_pending(current))
+ return -EINTR;
+ end = start + len;
+ if (start < limit_start)
+ start = limit_start;
+ if (end > limit_end)
+ end = limit_end;
+ if (start >= end)
+ return 0;
+ if (end - start < minlen)
+ return 0;
+ err = sb_issue_discard(s, start, end - start, GFP_NOFS, 0);
+ if (err)
+ return err;
+ *result += end - start;
+ return 0;
+}
+
+int hpfs_trim_fs(struct super_block *s, u64 start, u64 end, u64 minlen, unsigned *result)
+{
+ int err = 0;
+ struct hpfs_sb_info *sbi = hpfs_sb(s);
+ unsigned idx, len, start_bmp, end_bmp;
+ __le32 *bmp;
+ struct quad_buffer_head qbh;
+
+ *result = 0;
+ if (!end || end > sbi->sb_fs_size)
+ end = sbi->sb_fs_size;
+ if (start >= sbi->sb_fs_size)
+ return 0;
+ if (minlen > 0x4000)
+ return 0;
+ if (start < sbi->sb_dirband_start + sbi->sb_dirband_size && end > sbi->sb_dirband_start) {
+ hpfs_lock(s);
+ if (s->s_flags & MS_RDONLY) {
+ err = -EROFS;
+ goto unlock_1;
+ }
+ if (!(bmp = hpfs_map_dnode_bitmap(s, &qbh))) {
+ err = -EIO;
+ goto unlock_1;
+ }
+ idx = 0;
+ while ((len = find_run(bmp, &idx)) && !err) {
+ err = do_trim(s, sbi->sb_dirband_start + idx * 4, len * 4, start, end, minlen, result);
+ idx += len;
+ }
+ hpfs_brelse4(&qbh);
+unlock_1:
+ hpfs_unlock(s);
+ }
+ start_bmp = start >> 14;
+ end_bmp = (end + 0x3fff) >> 14;
+ while (start_bmp < end_bmp && !err) {
+ hpfs_lock(s);
+ if (s->s_flags & MS_RDONLY) {
+ err = -EROFS;
+ goto unlock_2;
+ }
+ if (!(bmp = hpfs_map_bitmap(s, start_bmp, &qbh, "trim"))) {
+ err = -EIO;
+ goto unlock_2;
+ }
+ idx = 0;
+ while ((len = find_run(bmp, &idx)) && !err) {
+ err = do_trim(s, (start_bmp << 14) + idx, len, start, end, minlen, result);
+ idx += len;
+ }
+ hpfs_brelse4(&qbh);
+unlock_2:
+ hpfs_unlock(s);
+ start_bmp++;
+ }
+ return err;
+}
.iterate = hpfs_readdir,
.release = hpfs_dir_release,
.fsync = hpfs_file_fsync,
+ .unlocked_ioctl = hpfs_ioctl,
};
.release = hpfs_file_release,
.fsync = hpfs_file_fsync,
.splice_read = generic_file_splice_read,
+ .unlocked_ioctl = hpfs_ioctl,
};
const struct inode_operations hpfs_file_iops =
#include <linux/pagemap.h>
#include <linux/buffer_head.h>
#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/blkdev.h>
#include <asm/unaligned.h>
#include "hpfs.h"
struct dnode *hpfs_alloc_dnode(struct super_block *, secno, dnode_secno *, struct quad_buffer_head *);
struct fnode *hpfs_alloc_fnode(struct super_block *, secno, fnode_secno *, struct buffer_head **);
struct anode *hpfs_alloc_anode(struct super_block *, secno, anode_secno *, struct buffer_head **);
+int hpfs_trim_fs(struct super_block *, u64, u64, u64, unsigned *);
/* anode.c */
void hpfs_error(struct super_block *, const char *, ...);
int hpfs_stop_cycles(struct super_block *, int, int *, int *, char *);
unsigned hpfs_get_free_dnodes(struct super_block *);
+long hpfs_ioctl(struct file *file, unsigned cmd, unsigned long arg);
/*
* local time (HPFS) to GMT (Unix)
}
/* Filesystem error... */
-static char err_buf[1024];
-
void hpfs_error(struct super_block *s, const char *fmt, ...)
{
+ struct va_format vaf;
va_list args;
va_start(args, fmt);
- vsnprintf(err_buf, sizeof(err_buf), fmt, args);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ pr_err("filesystem error: %pV", &vaf);
+
va_end(args);
- pr_err("filesystem error: %s", err_buf);
if (!hpfs_sb(s)->sb_was_error) {
if (hpfs_sb(s)->sb_err == 2) {
pr_cont("; crashing the system because you wanted it\n");
return 0;
}
+
+long hpfs_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case FITRIM: {
+ struct fstrim_range range;
+ secno n_trimmed;
+ int r;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ if (copy_from_user(&range, (struct fstrim_range __user *)arg, sizeof(range)))
+ return -EFAULT;
+ r = hpfs_trim_fs(file_inode(file)->i_sb, range.start >> 9, (range.start + range.len) >> 9, (range.minlen + 511) >> 9, &n_trimmed);
+ if (r)
+ return r;
+ range.len = (u64)n_trimmed << 9;
+ if (copy_to_user((struct fstrim_range __user *)arg, &range, sizeof(range)))
+ return -EFAULT;
+ return 0;
+ }
+ default: {
+ return -ENOIOCTLCMD;
+ }
+ }
+}
+
+
static struct kmem_cache * hpfs_inode_cachep;
static struct inode *hpfs_alloc_inode(struct super_block *sb)
{
struct hpfs_inode_info *ei;
- ei = (struct hpfs_inode_info *)kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
+ ei = kmem_cache_alloc(hpfs_inode_cachep, GFP_NOFS);
if (!ei)
return NULL;
ei->vfs_inode.i_version = 1;
int o;
struct hpfs_sb_info *sbi = hpfs_sb(s);
char *new_opts = kstrdup(data, GFP_KERNEL);
-
+
+ if (!new_opts)
+ return -ENOMEM;
+
sync_filesystem(s);
*flags |= MS_NOATIME;
-
+
hpfs_lock(s);
uid = sbi->sb_uid; gid = sbi->sb_gid;
umask = 0777 & ~sbi->sb_mode;
case JFS_IOC_SETFLAGS32:
cmd = JFS_IOC_SETFLAGS;
break;
- case FITRIM:
- cmd = FITRIM;
- break;
}
return jfs_ioctl(filp, cmd, arg);
}
case NILFS_IOCTL_SYNC:
case NILFS_IOCTL_RESIZE:
case NILFS_IOCTL_SET_ALLOC_RANGE:
- case FITRIM:
break;
default:
return -ENOIOCTLCMD;
case OCFS2_IOC_GROUP_EXTEND:
case OCFS2_IOC_GROUP_ADD:
case OCFS2_IOC_GROUP_ADD64:
- case FITRIM:
break;
case OCFS2_IOC_REFLINK:
if (copy_from_user(&args, argp, sizeof(args)))
acpi_fwnode_handle(adev) : NULL)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
+/**
+ * ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
+ * the PCI-defined class-code information
+ *
+ * @_cls : the class, subclass, prog-if triple for this device
+ * @_msk : the class mask for this device
+ *
+ * This macro is used to create a struct acpi_device_id that matches a
+ * specific PCI class. The .id and .driver_data fields will be left
+ * initialized with the default value.
+ */
+#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
+
static inline bool has_acpi_companion(struct device *dev)
{
return is_acpi_node(dev->fwnode);
int acpi_resources_are_enforced(void);
-int acpi_reserve_region(u64 start, unsigned int length, u8 space_id,
- unsigned long flags, char *desc);
-
#ifdef CONFIG_HIBERNATION
void __init acpi_no_s4_hw_signature(void);
#endif
#define ACPI_COMPANION(dev) (NULL)
#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
#define ACPI_HANDLE(dev) (NULL)
+#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
struct fwnode_handle;
return 0;
}
-static inline int acpi_reserve_region(u64 start, unsigned int length,
- u8 space_id, unsigned long flags,
- char *desc)
-{
- return -ENXIO;
-}
-
struct acpi_table_header;
static inline int acpi_table_parse(char *id,
int (*handler)(struct acpi_table_header *))
#include <linux/radix-tree.h>
#include <linux/uio.h>
#include <linux/workqueue.h>
+#include <net/net_namespace.h>
#include <linux/ceph/types.h>
#include <linux/ceph/buffer.h>
struct ceph_entity_addr my_enc_addr;
atomic_t stopping;
+ possible_net_t net;
bool nocrc;
bool tcp_nodelay;
u64 required_features,
bool nocrc,
bool tcp_nodelay);
+extern void ceph_messenger_fini(struct ceph_messenger *msgr);
extern void ceph_con_init(struct ceph_connection *con, void *private,
const struct ceph_connection_operations *ops,
struct acpi_device_id {
__u8 id[ACPI_ID_LEN];
kernel_ulong_t driver_data;
+ __u32 cls;
+ __u32 cls_msk;
};
#define PNP_ID_LEN 8
* for strings that are too long, we should not have created
* any.
*/
- if (unlikely((len == 0) || len > MAX_ARG_STRLEN - 1)) {
- WARN_ON(1);
+ if (WARN_ON_ONCE(len < 0 || len > MAX_ARG_STRLEN - 1)) {
send_sig(SIGKILL, current, 0);
return -1;
}
mutex_lock(&module_mutex);
/* Unlink carefully: kallsyms could be walking list. */
list_del_rcu(&mod->list);
+ mod_tree_remove(mod);
wake_up_all(&module_wq);
/* Wait for RCU-sched synchronizing before releasing mod->list. */
synchronize_sched();
pte_unmap(page_table);
+ /* File mapping without ->vm_ops ? */
+ if (vma->vm_flags & VM_SHARED)
+ return VM_FAULT_SIGBUS;
+
/* Check if we need to add a guard page to the stack */
if (check_stack_guard_page(vma, address) < 0)
return VM_FAULT_SIGSEGV;
- vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
pte_unmap(page_table);
+ /* The VMA was not fully populated on mmap() or missing VM_DONTEXPAND */
+ if (!vma->vm_ops->fault)
+ return VM_FAULT_SIGBUS;
if (!(flags & FAULT_FLAG_WRITE))
return do_read_fault(mm, vma, address, pmd, pgoff, flags,
orig_pte);
barrier();
if (!pte_present(entry)) {
if (pte_none(entry)) {
- if (vma->vm_ops) {
- if (likely(vma->vm_ops->fault))
- return do_fault(mm, vma, address, pte,
- pmd, flags, entry);
- }
- return do_anonymous_page(mm, vma, address,
- pte, pmd, flags);
+ if (vma->vm_ops)
+ return do_fault(mm, vma, address, pte, pmd,
+ flags, entry);
+
+ return do_anonymous_page(mm, vma, address, pte, pmd,
+ flags);
}
return do_swap_page(mm, vma, address,
pte, pmd, flags, entry);
#include <keys/ceph-type.h>
#include <linux/module.h>
#include <linux/mount.h>
+#include <linux/nsproxy.h>
#include <linux/parser.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/statfs.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
-#include <linux/nsproxy.h>
-#include <net/net_namespace.h>
#include <linux/ceph/ceph_features.h>
int i;
int ret;
+ /*
+ * Don't bother comparing options if network namespaces don't
+ * match.
+ */
+ if (!net_eq(current->nsproxy->net_ns, read_pnet(&client->msgr.net)))
+ return -1;
+
ret = memcmp(opt1, opt2, ofs);
if (ret)
return ret;
int err = -ENOMEM;
substring_t argstr[MAX_OPT_ARGS];
- if (current->nsproxy->net_ns != &init_net)
- return ERR_PTR(-EINVAL);
-
opt = kzalloc(sizeof(*opt), GFP_KERNEL);
if (!opt)
return ERR_PTR(-ENOMEM);
fail_monc:
ceph_monc_stop(&client->monc);
fail:
+ ceph_messenger_fini(&client->msgr);
kfree(client);
return ERR_PTR(err);
}
/* unmount */
ceph_osdc_stop(&client->osdc);
-
ceph_monc_stop(&client->monc);
+ ceph_messenger_fini(&client->msgr);
ceph_debugfs_client_cleanup(client);
#include <linux/inet.h>
#include <linux/kthread.h>
#include <linux/net.h>
+#include <linux/nsproxy.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/string.h>
int ret;
BUG_ON(con->sock);
- ret = sock_create_kern(&init_net, con->peer_addr.in_addr.ss_family,
+ ret = sock_create_kern(read_pnet(&con->msgr->net), paddr->ss_family,
SOCK_STREAM, IPPROTO_TCP, &sock);
if (ret)
return ret;
static bool addr_is_blank(struct sockaddr_storage *ss)
{
+ struct in_addr *addr = &((struct sockaddr_in *)ss)->sin_addr;
+ struct in6_addr *addr6 = &((struct sockaddr_in6 *)ss)->sin6_addr;
+
switch (ss->ss_family) {
case AF_INET:
- return ((struct sockaddr_in *)ss)->sin_addr.s_addr == 0;
+ return addr->s_addr == htonl(INADDR_ANY);
case AF_INET6:
- return
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[0] == 0 &&
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[1] == 0 &&
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[2] == 0 &&
- ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[3] == 0;
+ return ipv6_addr_any(addr6);
+ default:
+ return true;
}
- return false;
}
static int addr_port(struct sockaddr_storage *ss)
msgr->tcp_nodelay = tcp_nodelay;
atomic_set(&msgr->stopping, 0);
+ write_pnet(&msgr->net, get_net(current->nsproxy->net_ns));
dout("%s %p\n", __func__, msgr);
}
EXPORT_SYMBOL(ceph_messenger_init);
+void ceph_messenger_fini(struct ceph_messenger *msgr)
+{
+ put_net(read_pnet(&msgr->net));
+}
+EXPORT_SYMBOL(ceph_messenger_fini);
+
static void clear_standby(struct ceph_connection *con)
{
/* come back from STANDBY? */
DEVID(acpi_device_id);
DEVID_FIELD(acpi_device_id, id);
+ DEVID_FIELD(acpi_device_id, cls);
+ DEVID_FIELD(acpi_device_id, cls_msk);
DEVID(pnp_device_id);
DEVID_FIELD(pnp_device_id, id);
}
ADD_TO_DEVTABLE("serio", serio_device_id, do_serio_entry);
-/* looks like: "acpi:ACPI0003 or acpi:PNP0C0B" or "acpi:LNXVIDEO" */
+/* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
+ * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
+ *
+ * NOTE: Each driver should use one of the following : _HID, _CIDs
+ * or _CLS. Also, bb, ss, and pp can be substituted with ??
+ * as don't care byte.
+ */
static int do_acpi_entry(const char *filename,
void *symval, char *alias)
{
DEF_FIELD_ADDR(symval, acpi_device_id, id);
- sprintf(alias, "acpi*:%s:*", *id);
+ DEF_FIELD_ADDR(symval, acpi_device_id, cls);
+ DEF_FIELD_ADDR(symval, acpi_device_id, cls_msk);
+
+ if (id && strlen((const char *)*id))
+ sprintf(alias, "acpi*:%s:*", *id);
+ else if (cls) {
+ int i, byte_shift, cnt = 0;
+ unsigned int msk;
+
+ sprintf(&alias[cnt], "acpi*:");
+ cnt = 6;
+ for (i = 1; i <= 3; i++) {
+ byte_shift = 8 * (3-i);
+ msk = (*cls_msk >> byte_shift) & 0xFF;
+ if (msk)
+ sprintf(&alias[cnt], "%02x",
+ (*cls >> byte_shift) & 0xFF);
+ else
+ sprintf(&alias[cnt], "??");
+ cnt += 2;
+ }
+ sprintf(&alias[cnt], ":*");
+ }
return 1;
}
ADD_TO_DEVTABLE("acpi", acpi_device_id, do_acpi_entry);
#define TEXT_SECTIONS ".text", ".text.unlikely", ".sched.text", \
".kprobes.text"
#define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \
- ".fixup", ".entry.text", ".exception.text", ".text.*"
+ ".fixup", ".entry.text", ".exception.text", ".text.*", \
+ ".coldtext"
#define INIT_SECTIONS ".init.*"
#define MEM_INIT_SECTIONS ".meminit.*"
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