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| author | Miao Xie | 2014-02-20 11:08:56 +0100 |
|---|---|---|
| committer | Josef Bacik | 2014-03-10 20:16:42 +0100 |
| commit | bb14a59b619d3a9993c3fa04bb10347db35ca550 (patch) | |
| tree | 5c2af85d47ef6eab469a4e33eb4f5a2820bdf077 /fs/btrfs/btrfs_inode.h | |
| parent | Btrfs: remove unnecessary memory barrier in btrfs_sync_log() (diff) | |
| download | kernel-qcow2-linux-bb14a59b619d3a9993c3fa04bb10347db35ca550.tar.gz kernel-qcow2-linux-bb14a59b619d3a9993c3fa04bb10347db35ca550.tar.xz kernel-qcow2-linux-bb14a59b619d3a9993c3fa04bb10347db35ca550.zip | |
Btrfs: use signed integer instead of unsigned long integer for log transid
The log trans id is initialized to be 0 every time we create a log tree,
and the log tree need be re-created after a new transaction is started,
it means the log trans id is unlikely to be a huge number, so we can use
signed integer instead of unsigned long integer to save a bit space.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
| -rw-r--r-- | fs/btrfs/btrfs_inode.h | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index 8fed2125689e..c9a24444ec9a 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -109,14 +109,17 @@ struct btrfs_inode { u64 last_trans; /* - * log transid when this inode was last modified + * transid that last logged this inode */ - u64 last_sub_trans; + u64 logged_trans; /* - * transid that last logged this inode + * log transid when this inode was last modified */ - u64 logged_trans; + int last_sub_trans; + + /* a local copy of root's last_log_commit */ + int last_log_commit; /* total number of bytes pending delalloc, used by stat to calc the * real block usage of the file @@ -155,9 +158,6 @@ struct btrfs_inode { /* flags field from the on disk inode */ u32 flags; - /* a local copy of root's last_log_commit */ - unsigned long last_log_commit; - /* * Counters to keep track of the number of extent item's we may use due * to delalloc and such. outstanding_extents is the number of extent |