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| author | Miao Xie <miaox@cn.fujitsu.com> | 2013-01-29 11:11:59 +0100 |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2013-02-20 18:59:06 +0100 |
| commit | df0af1a57f72c74d53a9377c60ff20095afab97d (patch) | |
| tree | 588048ea16f8564a2eb449c0e9b7ba22c49eebc6 /fs/btrfs/btrfs_inode.h | |
| parent | Btrfs: use percpu counter for fs_info->delalloc_bytes (diff) | |
| download | linux-df0af1a57f72c74d53a9377c60ff20095afab97d.tar.xz linux-df0af1a57f72c74d53a9377c60ff20095afab97d.zip | |
Btrfs: use the inode own lock to protect its delalloc_bytes
We need not use a global lock to protect the delalloc_bytes of the
inode, just use its own lock. In this way, we can reduce the lock
contention and ->delalloc_lock will just protect delalloc inode
list.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index 2a8c242bc4f5..c935a774a9f8 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -40,6 +40,7 @@ #define BTRFS_INODE_HAS_ASYNC_EXTENT 6 #define BTRFS_INODE_NEEDS_FULL_SYNC 7 #define BTRFS_INODE_COPY_EVERYTHING 8 +#define BTRFS_INODE_IN_DELALLOC_LIST 9 /* in memory btrfs inode */ struct btrfs_inode { |