diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2015-07-19 23:48:20 +0200 |
|---|---|---|
| committer | Oleg Nesterov <oleg@redhat.com> | 2015-08-15 13:52:08 +0200 |
| commit | bee9182d955227f01ff3b80c4cb6acca9bb40b11 (patch) | |
| tree | 3237b122991b6f44913f47561e52c344d7725fb1 /fs/btrfs/transaction.c | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff) | |
| download | linux-bee9182d955227f01ff3b80c4cb6acca9bb40b11.tar.xz linux-bee9182d955227f01ff3b80c4cb6acca9bb40b11.zip | |
introduce __sb_writers_{acquired,release}() helpers
Preparation to hide the sb->s_writers internals from xfs and btrfs.
Add 2 trivial define's they can use rather than play with ->s_writers
directly. No changes in btrfs/transaction.o and xfs/xfs_aops.o.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Jan Kara <jack@suse.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index f5021fcb154e..a8ab8f5ef38e 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1638,9 +1638,7 @@ static void do_async_commit(struct work_struct *work) * Tell lockdep about it. */ if (ac->newtrans->type & __TRANS_FREEZABLE) - rwsem_acquire_read( - &ac->root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1], - 0, 1, _THIS_IP_); + __sb_writers_acquired(ac->root->fs_info->sb, SB_FREEZE_FS); current->journal_info = ac->newtrans; @@ -1679,9 +1677,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans, * async commit thread will be the one to unlock it. */ if (ac->newtrans->type & __TRANS_FREEZABLE) - rwsem_release( - &root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1], - 1, _THIS_IP_); + __sb_writers_release(root->fs_info->sb, SB_FREEZE_FS); schedule_work(&ac->work); |