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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-03 12:57:53 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-03 12:57:53 -0700 |
commit | 776edb59317ada867dfcddde40b55648beeb0078 (patch) | |
tree | f6a6136374642323cfefd7d6399ea429f9018ade /fs/btrfs | |
parent | 59a3d4c3631e553357b7305dc09db1990aa6757c (diff) | |
parent | 3cf2f34e1a3d4d5ff209d087925cf950e52f4805 (diff) | |
download | linux-stable-776edb59317ada867dfcddde40b55648beeb0078.tar.gz linux-stable-776edb59317ada867dfcddde40b55648beeb0078.tar.bz2 linux-stable-776edb59317ada867dfcddde40b55648beeb0078.zip |
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
Pull core locking updates from Ingo Molnar:
"The main changes in this cycle were:
- reduced/streamlined smp_mb__*() interface that allows more usecases
and makes the existing ones less buggy, especially in rarer
architectures
- add rwsem implementation comments
- bump up lockdep limits"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
rwsem: Add comments to explain the meaning of the rwsem's count field
lockdep: Increase static allocations
arch: Mass conversion of smp_mb__*()
arch,doc: Convert smp_mb__*()
arch,xtensa: Convert smp_mb__*()
arch,x86: Convert smp_mb__*()
arch,tile: Convert smp_mb__*()
arch,sparc: Convert smp_mb__*()
arch,sh: Convert smp_mb__*()
arch,score: Convert smp_mb__*()
arch,s390: Convert smp_mb__*()
arch,powerpc: Convert smp_mb__*()
arch,parisc: Convert smp_mb__*()
arch,openrisc: Convert smp_mb__*()
arch,mn10300: Convert smp_mb__*()
arch,mips: Convert smp_mb__*()
arch,metag: Convert smp_mb__*()
arch,m68k: Convert smp_mb__*()
arch,m32r: Convert smp_mb__*()
arch,ia64: Convert smp_mb__*()
...
Diffstat (limited to 'fs/btrfs')
-rw-r--r-- | fs/btrfs/btrfs_inode.h | 2 | ||||
-rw-r--r-- | fs/btrfs/extent_io.c | 2 | ||||
-rw-r--r-- | fs/btrfs/inode.c | 6 | ||||
-rw-r--r-- | fs/btrfs/ioctl.c | 2 |
4 files changed, 6 insertions, 6 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index c9a24444ec9a..2256e9cceec5 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -279,7 +279,7 @@ static inline void btrfs_inode_block_unlocked_dio(struct inode *inode) static inline void btrfs_inode_resume_unlocked_dio(struct inode *inode) { - smp_mb__before_clear_bit(); + smp_mb__before_atomic(); clear_bit(BTRFS_INODE_READDIO_NEED_LOCK, &BTRFS_I(inode)->runtime_flags); } diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 3955e475ceec..f29a54e454d4 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3458,7 +3458,7 @@ static int lock_extent_buffer_for_io(struct extent_buffer *eb, static void end_extent_buffer_writeback(struct extent_buffer *eb) { clear_bit(EXTENT_BUFFER_WRITEBACK, &eb->bflags); - smp_mb__after_clear_bit(); + smp_mb__after_atomic(); wake_up_bit(&eb->bflags, EXTENT_BUFFER_WRITEBACK); } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 5f805bc944fa..5a3b8371772e 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7126,7 +7126,7 @@ static void btrfs_end_dio_bio(struct bio *bio, int err) * before atomic variable goto zero, we must make sure * dip->errors is perceived to be set. */ - smp_mb__before_atomic_dec(); + smp_mb__before_atomic(); } /* if there are more bios still pending for this dio, just exit */ @@ -7306,7 +7306,7 @@ out_err: * before atomic variable goto zero, we must * make sure dip->errors is perceived to be set. */ - smp_mb__before_atomic_dec(); + smp_mb__before_atomic(); if (atomic_dec_and_test(&dip->pending_bios)) bio_io_error(dip->orig_bio); @@ -7449,7 +7449,7 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, return 0; atomic_inc(&inode->i_dio_count); - smp_mb__after_atomic_inc(); + smp_mb__after_atomic(); /* * The generic stuff only does filemap_write_and_wait_range, which diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 2f6d7b13b5bd..3f52bb7a58d2 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -642,7 +642,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, return -EINVAL; atomic_inc(&root->will_be_snapshoted); - smp_mb__after_atomic_inc(); + smp_mb__after_atomic(); btrfs_wait_nocow_write(root); ret = btrfs_start_delalloc_inodes(root, 0); |