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Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block

Browse Source 
Pull core block updates from Jens Axboe:
 "Good amount of cleanups and tech debt removals in here, and as a
  result, the diffstat shows a nice net reduction in code.

   - Softirq completion cleanups (Christoph)

   - Stop using ->queuedata (Christoph)

   - Cleanup bd claiming (Christoph)

   - Use check_events, moving away from the legacy media change
     (Christoph)

   - Use inode i_blkbits consistently (Christoph)

   - Remove old unused writeback congestion bits (Christoph)

   - Cleanup/unify submission path (Christoph)

   - Use bio_uninit consistently, instead of bio_disassociate_blkg
     (Christoph)

   - sbitmap cleared bits handling (John)

   - Request merging blktrace event addition (Jan)

   - sysfs add/remove race fixes (Luis)

   - blk-mq tag fixes/optimizations (Ming)

   - Duplicate words in comments (Randy)

   - Flush deferral cleanup (Yufen)

   - IO context locking/retry fixes (John)

   - struct_size() usage (Gustavo)

   - blk-iocost fixes (Chengming)

   - blk-cgroup IO stats fixes (Boris)

   - Various little fixes"

* tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block: (135 commits)
  block: blk-timeout: delete duplicated word
  block: blk-mq-sched: delete duplicated word
  block: blk-mq: delete duplicated word
  block: genhd: delete duplicated words
  block: elevator: delete duplicated word and fix typos
  block: bio: delete duplicated words
  block: bfq-iosched: fix duplicated word
  iocost_monitor: start from the oldest usage index
  iocost: Fix check condition of iocg abs_vdebt
  block: Remove callback typedefs for blk_mq_ops
  block: Use non _rcu version of list functions for tag_set_list
  blk-cgroup: show global disk stats in root cgroup io.stat
  blk-cgroup: make iostat functions visible to stat printing
  block: improve discard bio alignment in __blkdev_issue_discard()
  block: change REQ_OP_ZONE_RESET and REQ_OP_ZONE_RESET_ALL to be odd numbers
  block: defer flush request no matter whether we have elevator
  block: make blk_timeout_init() static
  block: remove retry loop in ioc_release_fn()
  block: remove unnecessary ioc nested locking
  block: integrate bd_start_claiming into __blkdev_get
  ...
This commit is contained in:
Linus Torvalds
2020-08-03 11:57:03 -07:00
parent 99f6cf61f1 d958e343bd
commit 382625d0d4
157 changed files with 1839 additions and 2648 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
fs/adfs/super.c
View File

@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/statfs.h>
#include <linux/user_namespace.h>
#include <linux/blkdev.h>
#include "adfs.h"
#include "dir_f.h"
#include "dir_fplus.h"

1
fs/affs/file.c
View File

@@ -14,6 +14,7 @@
*/
#include <linux/uio.h>
#include <linux/blkdev.h>
#include "affs.h"
static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);

1
fs/befs/linuxvfs.c
View File

@@ -22,6 +22,7 @@
#include <linux/cred.h>
#include <linux/exportfs.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
#include "befs.h"
#include "btree.h"

315
fs/block_dev.c
View File

@@ -105,16 +105,7 @@ EXPORT_SYMBOL(invalidate_bdev);
static void set_init_blocksize(struct block_device *bdev)
{
unsigned bsize = bdev_logical_block_size(bdev);
loff_t size = i_size_read(bdev->bd_inode);
while (bsize < PAGE_SIZE) {
if (size & bsize)
break;
bsize <<= 1;
}
bdev->bd_block_size = bsize;
bdev->bd_inode->i_blkbits = blksize_bits(bsize);
bdev->bd_inode->i_blkbits = blksize_bits(bdev_logical_block_size(bdev));
}
int set_blocksize(struct block_device *bdev, int size)
@@ -128,9 +119,8 @@ int set_blocksize(struct block_device *bdev, int size)
return -EINVAL;
/* Don't change the size if it is same as current */
if (bdev->bd_block_size != size) {
if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
bdev->bd_block_size = size;
bdev->bd_inode->i_blkbits = blksize_bits(size);
kill_bdev(bdev);
}
@@ -703,12 +693,12 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
if (!ops->rw_page || bdev_get_integrity(bdev))
return result;
result = blk_queue_enter(bdev->bd_queue, 0);
result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
blk_queue_exit(bdev->bd_queue);
blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@ -739,7 +729,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
if (!ops->rw_page || bdev_get_integrity(bdev))
return -EOPNOTSUPP;
result = blk_queue_enter(bdev->bd_queue, 0);
result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
@@ -752,7 +742,7 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
clean_page_buffers(page);
unlock_page(page);
}
blk_queue_exit(bdev->bd_queue);
blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@ -783,7 +773,6 @@ static void init_once(void *foo)
memset(bdev, 0, sizeof(*bdev));
mutex_init(&bdev->bd_mutex);
INIT_LIST_HEAD(&bdev->bd_list);
#ifdef CONFIG_SYSFS
INIT_LIST_HEAD(&bdev->bd_holder_disks);
#endif
@@ -799,9 +788,6 @@ static void bdev_evict_inode(struct inode *inode)
truncate_inode_pages_final(&inode->i_data);
invalidate_inode_buffers(inode); /* is it needed here? */
clear_inode(inode);
spin_lock(&bdev_lock);
list_del_init(&bdev->bd_list);
spin_unlock(&bdev_lock);
/* Detach inode from wb early as bdi_put() may free bdi->wb */
inode_detach_wb(inode);
if (bdev->bd_bdi != &noop_backing_dev_info) {
@@ -876,8 +862,6 @@ static int bdev_set(struct inode *inode, void *data)
return 0;
}
static LIST_HEAD(all_bdevs);
struct block_device *bdget(dev_t dev)
{
struct block_device *bdev;
@@ -895,7 +879,6 @@ struct block_device *bdget(dev_t dev)
bdev->bd_contains = NULL;
bdev->bd_super = NULL;
bdev->bd_inode = inode;
bdev->bd_block_size = i_blocksize(inode);
bdev->bd_part_count = 0;
bdev->bd_invalidated = 0;
inode->i_mode = S_IFBLK;
@@ -903,9 +886,6 @@ struct block_device *bdget(dev_t dev)
inode->i_bdev = bdev;
inode->i_data.a_ops = &def_blk_aops;
mapping_set_gfp_mask(&inode->i_data, GFP_USER);
spin_lock(&bdev_lock);
list_add(&bdev->bd_list, &all_bdevs);
spin_unlock(&bdev_lock);
unlock_new_inode(inode);
}
return bdev;
@@ -926,13 +906,14 @@ EXPORT_SYMBOL(bdgrab);
long nr_blockdev_pages(void)
{
struct block_device *bdev;
struct inode *inode;
long ret = 0;
spin_lock(&bdev_lock);
list_for_each_entry(bdev, &all_bdevs, bd_list) {
ret += bdev->bd_inode->i_mapping->nrpages;
}
spin_unlock(&bdev_lock);
spin_lock(&blockdev_superblock->s_inode_list_lock);
list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list)
ret += inode->i_mapping->nrpages;
spin_unlock(&blockdev_superblock->s_inode_list_lock);
return ret;
}
@@ -1034,30 +1015,28 @@ static bool bd_may_claim(struct block_device *bdev, struct block_device *whole,
}
/**
* bd_prepare_to_claim - prepare to claim a block device
* bd_prepare_to_claim - claim a block device
* @bdev: block device of interest
* @whole: the whole device containing @bdev, may equal @bdev
* @holder: holder trying to claim @bdev
*
* Prepare to claim @bdev. This function fails if @bdev is already
* claimed by another holder and waits if another claiming is in
* progress. This function doesn't actually claim. On successful
* return, the caller has ownership of bd_claiming and bd_holder[s].
*
* CONTEXT:
* spin_lock(&bdev_lock). Might release bdev_lock, sleep and regrab
* it multiple times.
* Claim @bdev. This function fails if @bdev is already claimed by another
* holder and waits if another claiming is in progress. return, the caller
* has ownership of bd_claiming and bd_holder[s].
*
* RETURNS:
* 0 if @bdev can be claimed, -EBUSY otherwise.
*/
static int bd_prepare_to_claim(struct block_device *bdev,
struct block_device *whole, void *holder)
int bd_prepare_to_claim(struct block_device *bdev, struct block_device *whole,
void *holder)
{
retry:
spin_lock(&bdev_lock);
/* if someone else claimed, fail */
if (!bd_may_claim(bdev, whole, holder))
if (!bd_may_claim(bdev, whole, holder)) {
spin_unlock(&bdev_lock);
return -EBUSY;
}
/* if claiming is already in progress, wait for it to finish */
if (whole->bd_claiming) {
@@ -1068,13 +1047,15 @@ retry:
spin_unlock(&bdev_lock);
schedule();
finish_wait(wq, &wait);
spin_lock(&bdev_lock);
goto retry;
}
/* yay, all mine */
whole->bd_claiming = holder;
spin_unlock(&bdev_lock);
return 0;
}
EXPORT_SYMBOL_GPL(bd_prepare_to_claim); /* only for the loop driver */
static struct gendisk *bdev_get_gendisk(struct block_device *bdev, int *partno)
{
@@ -1097,78 +1078,6 @@ static struct gendisk *bdev_get_gendisk(struct block_device *bdev, int *partno)
return disk;
}
/**
* bd_start_claiming - start claiming a block device
* @bdev: block device of interest
* @holder: holder trying to claim @bdev
*
* @bdev is about to be opened exclusively. Check @bdev can be opened
* exclusively and mark that an exclusive open is in progress. Each
* successful call to this function must be matched with a call to
* either bd_finish_claiming() or bd_abort_claiming() (which do not
* fail).
*
* This function is used to gain exclusive access to the block device
* without actually causing other exclusive open attempts to fail. It
* should be used when the open sequence itself requires exclusive
* access but may subsequently fail.
*
* CONTEXT:
* Might sleep.
*
* RETURNS:
* Pointer to the block device containing @bdev on success, ERR_PTR()
* value on failure.
*/
struct block_device *bd_start_claiming(struct block_device *bdev, void *holder)
{
struct gendisk *disk;
struct block_device *whole;
int partno, err;
might_sleep();
/*
* @bdev might not have been initialized properly yet, look up
* and grab the outer block device the hard way.
*/
disk = bdev_get_gendisk(bdev, &partno);
if (!disk)
return ERR_PTR(-ENXIO);
/*
* Normally, @bdev should equal what's returned from bdget_disk()
* if partno is 0; however, some drivers (floppy) use multiple
* bdev's for the same physical device and @bdev may be one of the
* aliases. Keep @bdev if partno is 0. This means claimer
* tracking is broken for those devices but it has always been that
* way.
*/
if (partno)
whole = bdget_disk(disk, 0);
else
whole = bdgrab(bdev);
put_disk_and_module(disk);
if (!whole)
return ERR_PTR(-ENOMEM);
/* prepare to claim, if successful, mark claiming in progress */
spin_lock(&bdev_lock);
err = bd_prepare_to_claim(bdev, whole, holder);
if (err == 0) {
whole->bd_claiming = holder;
spin_unlock(&bdev_lock);
return whole;
} else {
spin_unlock(&bdev_lock);
bdput(whole);
return ERR_PTR(err);
}
}
EXPORT_SYMBOL(bd_start_claiming);
static void bd_clear_claiming(struct block_device *whole, void *holder)
{
lockdep_assert_held(&bdev_lock);
@@ -1181,14 +1090,14 @@ static void bd_clear_claiming(struct block_device *whole, void *holder)
/**
* bd_finish_claiming - finish claiming of a block device
* @bdev: block device of interest
* @whole: whole block device (returned from bd_start_claiming())
* @whole: whole block device
* @holder: holder that has claimed @bdev
*
* Finish exclusive open of a block device. Mark the device as exlusively
* open by the holder and wake up all waiters for exclusive open to finish.
*/
void bd_finish_claiming(struct block_device *bdev, struct block_device *whole,
void *holder)
static void bd_finish_claiming(struct block_device *bdev,
struct block_device *whole, void *holder)
{
spin_lock(&bdev_lock);
BUG_ON(!bd_may_claim(bdev, whole, holder));
@@ -1203,12 +1112,11 @@ void bd_finish_claiming(struct block_device *bdev, struct block_device *whole,
bd_clear_claiming(whole, holder);
spin_unlock(&bdev_lock);
}
EXPORT_SYMBOL(bd_finish_claiming);
/**
* bd_abort_claiming - abort claiming of a block device
* @bdev: block device of interest
* @whole: whole block device (returned from bd_start_claiming())
* @whole: whole block device
* @holder: holder that has claimed @bdev
*
* Abort claiming of a block device when the exclusive open failed. This can be
@@ -1367,26 +1275,6 @@ void bd_unlink_disk_holder(struct block_device *bdev, struct gendisk *disk)
EXPORT_SYMBOL_GPL(bd_unlink_disk_holder);
#endif
/**
* flush_disk - invalidates all buffer-cache entries on a disk
*
* @bdev: struct block device to be flushed
* @kill_dirty: flag to guide handling of dirty inodes
*
* Invalidates all buffer-cache entries on a disk. It should be called
* when a disk has been changed -- either by a media change or online
* resize.
*/
static void flush_disk(struct block_device *bdev, bool kill_dirty)
{
if (__invalidate_device(bdev, kill_dirty)) {
printk(KERN_WARNING "VFS: busy inodes on changed media or "
"resized disk %s\n",
bdev->bd_disk ? bdev->bd_disk->disk_name : "");
}
bdev->bd_invalidated = 1;
}
/**
* check_disk_size_change - checks for disk size change and adjusts bdev size.
* @disk: struct gendisk to check
@@ -1411,8 +1299,9 @@ static void check_disk_size_change(struct gendisk *disk,
disk->disk_name, bdev_size, disk_size);
}
i_size_write(bdev->bd_inode, disk_size);
if (bdev_size > disk_size)
flush_disk(bdev, false);
if (bdev_size > disk_size && __invalidate_device(bdev, false))
pr_warn("VFS: busy inodes on resized disk %s\n",
disk->disk_name);
}
bdev->bd_invalidated = 0;
}
@@ -1471,7 +1360,10 @@ int check_disk_change(struct block_device *bdev)
if (!(events & DISK_EVENT_MEDIA_CHANGE))
return 0;
flush_disk(bdev, true);
if (__invalidate_device(bdev, true))
pr_warn("VFS: busy inodes on changed media %s\n",
disk->disk_name);
bdev->bd_invalidated = 1;
if (bdops->revalidate_disk)
bdops->revalidate_disk(bdev->bd_disk);
return 1;
@@ -1547,13 +1439,15 @@ EXPORT_SYMBOL_GPL(bdev_disk_changed);
* mutex_lock_nested(whole->bd_mutex, 1)
*/
static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
static int __blkdev_get(struct block_device *bdev, fmode_t mode, void *holder,
int for_part)
{
struct block_device *whole = NULL, *claiming = NULL;
struct gendisk *disk;
int ret;
int partno;
int perm = 0;
bool first_open = false;
bool first_open = false, unblock_events = true, need_restart;
if (mode & FMODE_READ)
perm |= MAY_READ;
@@ -1569,18 +1463,36 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
}
restart:
need_restart = false;
ret = -ENXIO;
disk = bdev_get_gendisk(bdev, &partno);
if (!disk)
goto out;
if (partno) {
whole = bdget_disk(disk, 0);
if (!whole) {
ret = -ENOMEM;
goto out_put_disk;
}
}
if (!for_part && (mode & FMODE_EXCL)) {
WARN_ON_ONCE(!holder);
if (whole)
claiming = whole;
else
claiming = bdev;
ret = bd_prepare_to_claim(bdev, claiming, holder);
if (ret)
goto out_put_whole;
}
disk_block_events(disk);
mutex_lock_nested(&bdev->bd_mutex, for_part);
if (!bdev->bd_openers) {
first_open = true;
bdev->bd_disk = disk;
bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_partno = partno;
@@ -1593,20 +1505,12 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
ret = 0;
if (disk->fops->open) {
ret = disk->fops->open(bdev, mode);
if (ret == -ERESTARTSYS) {
/* Lost a race with 'disk' being
* deleted, try again.
* See md.c
*/
disk_put_part(bdev->bd_part);
bdev->bd_part = NULL;
bdev->bd_disk = NULL;
bdev->bd_queue = NULL;
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
put_disk_and_module(disk);
goto restart;
}
/*
* If we lost a race with 'disk' being deleted,
* try again. See md.c
*/
if (ret == -ERESTARTSYS)
need_restart = true;
}
if (!ret) {
@@ -1627,18 +1531,11 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
if (ret)
goto out_clear;
} else {
struct block_device *whole;
whole = bdget_disk(disk, 0);
ret = -ENOMEM;
if (!whole)
goto out_clear;
BUG_ON(for_part);
ret = __blkdev_get(whole, mode, 1);
if (ret) {
bdput(whole);
ret = __blkdev_get(whole, mode, NULL, 1);
if (ret)
goto out_clear;
}
bdev->bd_contains = whole;
bdev->bd_contains = bdgrab(whole);
bdev->bd_part = disk_get_part(disk, partno);
if (!(disk->flags & GENHD_FL_UP) ||
!bdev->bd_part || !bdev->bd_part->nr_sects) {
@@ -1667,27 +1564,52 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
bdev->bd_openers++;
if (for_part)
bdev->bd_part_count++;
if (claiming)
bd_finish_claiming(bdev, claiming, holder);
/*
* Block event polling for write claims if requested. Any write holder
* makes the write_holder state stick until all are released. This is
* good enough and tracking individual writeable reference is too
* fragile given the way @mode is used in blkdev_get/put().
*/
if (claiming && (mode & FMODE_WRITE) && !bdev->bd_write_holder &&
(disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
bdev->bd_write_holder = true;
unblock_events = false;
}
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
if (unblock_events)
disk_unblock_events(disk);
/* only one opener holds refs to the module and disk */
if (!first_open)
put_disk_and_module(disk);
if (whole)
bdput(whole);
return 0;
out_clear:
disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
bdev->bd_queue = NULL;
if (bdev != bdev->bd_contains)
__blkdev_put(bdev->bd_contains, mode, 1);
bdev->bd_contains = NULL;
out_unlock_bdev:
if (claiming)
bd_abort_claiming(bdev, claiming, holder);
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
out_put_whole:
if (whole)
bdput(whole);
out_put_disk:
put_disk_and_module(disk);
if (need_restart)
goto restart;
out:
return ret;
}
@@ -1712,50 +1634,11 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
*/
int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder)
{
struct block_device *whole = NULL;
int res;
WARN_ON_ONCE((mode & FMODE_EXCL) && !holder);
if ((mode & FMODE_EXCL) && holder) {
whole = bd_start_claiming(bdev, holder);
if (IS_ERR(whole)) {
bdput(bdev);
return PTR_ERR(whole);
}
}
res = __blkdev_get(bdev, mode, 0);
if (whole) {
struct gendisk *disk = whole->bd_disk;
/* finish claiming */
mutex_lock(&bdev->bd_mutex);
if (!res)
bd_finish_claiming(bdev, whole, holder);
else
bd_abort_claiming(bdev, whole, holder);
/*
* Block event polling for write claims if requested. Any
* write holder makes the write_holder state stick until
* all are released. This is good enough and tracking
* individual writeable reference is too fragile given the
* way @mode is used in blkdev_get/put().
*/
if (!res && (mode & FMODE_WRITE) && !bdev->bd_write_holder &&
(disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
bdev->bd_write_holder = true;
disk_block_events(disk);
}
mutex_unlock(&bdev->bd_mutex);
bdput(whole);
}
res =__blkdev_get(bdev, mode, holder, 0);
if (res)
bdput(bdev);
return res;
}
EXPORT_SYMBOL(blkdev_get);

23
fs/btrfs/disk-io.c
View File

@@ -1677,27 +1677,6 @@ struct btrfs_root *btrfs_get_new_fs_root(struct btrfs_fs_info *fs_info,
return btrfs_get_root_ref(fs_info, objectid, anon_dev, true);
}
static int btrfs_congested_fn(void *congested_data, int bdi_bits)
{
struct btrfs_fs_info *info = (struct btrfs_fs_info *)congested_data;
int ret = 0;
struct btrfs_device *device;
struct backing_dev_info *bdi;
rcu_read_lock();
list_for_each_entry_rcu(device, &info->fs_devices->devices, dev_list) {
if (!device->bdev)
continue;
bdi = device->bdev->bd_bdi;
if (bdi_congested(bdi, bdi_bits)) {
ret = 1;
break;
}
}
rcu_read_unlock();
return ret;
}
/*
* called by the kthread helper functions to finally call the bio end_io
* functions. This is where read checksum verification actually happens
@@ -3112,8 +3091,6 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
goto fail_sb_buffer;
}
sb->s_bdi->congested_fn = btrfs_congested_fn;
sb->s_bdi->congested_data = fs_info;
sb->s_bdi->capabilities |= BDI_CAP_CGROUP_WRITEBACK;
sb->s_bdi->ra_pages = VM_READAHEAD_PAGES;
sb->s_bdi->ra_pages *= btrfs_super_num_devices(disk_super);

4
fs/buffer.c
View File

@@ -3039,10 +3039,6 @@ static int submit_bh_wbc(int op, int op_flags, struct buffer_head *bh,
if (test_set_buffer_req(bh) && (op == REQ_OP_WRITE))
clear_buffer_write_io_error(bh);
/*
* from here on down, it's all bio -- do the initial mapping,
* submit_bio -> generic_make_request may further map this bio around
*/
bio = bio_alloc(GFP_NOIO, 1);
fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO);

4
fs/direct-io.c
View File

@@ -1387,8 +1387,8 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
* Attempt to prefetch the pieces we likely need later.
*/
prefetch(&bdev->bd_disk->part_tbl);
prefetch(bdev->bd_queue);
prefetch((char *)bdev->bd_queue + SMP_CACHE_BYTES);
prefetch(bdev->bd_disk->queue);
prefetch((char *)bdev->bd_disk->queue + SMP_CACHE_BYTES);
return do_blockdev_direct_IO(iocb, inode, bdev, iter, get_block,
end_io, submit_io, flags);

1
fs/efs/super.c
View File

@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/buffer_head.h>
#include <linux/vfs.h>
#include <linux/blkdev.h>
#include "efs.h"
#include <linux/efs_vh.h>

1
fs/hfs/inode.c
View File

@@ -17,6 +17,7 @@
#include <linux/cred.h>
#include <linux/uio.h>
#include <linux/xattr.h>
#include <linux/blkdev.h>
#include "hfs_fs.h"
#include "btree.h"

17
fs/internal.h
View File

@@ -23,7 +23,9 @@ struct user_namespace;
extern void __init bdev_cache_init(void);
extern int __sync_blockdev(struct block_device *bdev, int wait);
void iterate_bdevs(void (*)(struct block_device *, void *), void *);
void emergency_thaw_bdev(struct super_block *sb);
void bd_forget(struct inode *inode);
#else
static inline void bdev_cache_init(void)
{
@@ -33,7 +35,18 @@ static inline int __sync_blockdev(struct block_device *bdev, int wait)
{
return 0;
}
#endif
static inline void iterate_bdevs(void (*f)(struct block_device *, void *),
void *arg)
{
}
static inline int emergency_thaw_bdev(struct super_block *sb)
{
return 0;
}
static inline void bd_forget(struct inode *inode)
{
}
#endif /* CONFIG_BLOCK */
/*
* buffer.c

3
fs/isofs/inode.c
View File

@@ -612,9 +612,6 @@ static bool rootdir_empty(struct super_block *sb, unsigned long block)
/*
* Initialize the superblock and read the root inode.
*
* Note: a check_disk_change() has been done immediately prior
* to this call, so we don't need to check again.
*/
static int isofs_fill_super(struct super_block *s, void *data, int silent)
{

1
fs/jfs/jfs_mount.c
View File

@@ -36,6 +36,7 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"

1
fs/jfs/resize.c
View File

@@ -6,6 +6,7 @@
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/quotaops.h>
#include <linux/blkdev.h>
#include "jfs_incore.h"
#include "jfs_filsys.h"
#include "jfs_metapage.h"

1
fs/ntfs/dir.c
View File

@@ -8,6 +8,7 @@
#include <linux/buffer_head.h>
#include <linux/slab.h>
#include <linux/blkdev.h>
#include "dir.h"
#include "aops.h"

1
fs/proc/devices.c
View File

@@ -3,6 +3,7 @@
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
static int devinfo_show(struct seq_file *f, void *v)
{

1
fs/quota/dquot.c
View File

@@ -78,6 +78,7 @@
#include <linux/namei.h>
#include <linux/capability.h>
#include <linux/quotaops.h>
#include <linux/blkdev.h>
#include "../internal.h" /* ugh */
#include <linux/uaccess.h>

1
fs/reiserfs/procfs.c
View File

@@ -15,6 +15,7 @@
#include "reiserfs.h"
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/blkdev.h>
/*
* LOCKING:

2
fs/xfs/xfs_pwork.c
View File

@@ -132,5 +132,5 @@ xfs_pwork_guess_datadev_parallelism(
* For now we'll go with the most conservative setting possible,
* which is two threads for an SSD and 1 thread everywhere else.
*/
return blk_queue_nonrot(btp->bt_bdev->bd_queue) ? 2 : 1;
return blk_queue_nonrot(btp->bt_bdev->bd_disk->queue) ? 2 : 1;
}