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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-08-20 20:10:38 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-10-23 09:24:33 +0900 |
| commit | 6c43f41000312fefa482c3bfdd97e7f81d6be0ec (patch) | |
| tree | de22a81c028f33d9fc2354bfdc218191b96240cf /fs/nilfs2/segment.h | |
| parent | 7d6cd92fe2de3c286b8e95f43223f09db9302635 (diff) | |
| download | op-kernel-dev-6c43f41000312fefa482c3bfdd97e7f81d6be0ec.zip op-kernel-dev-6c43f41000312fefa482c3bfdd97e7f81d6be0ec.tar.gz | |
nilfs2: keep zero value in i_cno except for gc-inodes
On-memory inode structures of nilfs have a member "i_cno" which stores
a checkpoint number related to the inode. For gc-inodes, this field
indicates version of data each gc-inode caches for GC. Log writer
temporarily uses "i_cno" to transfer the latest checkpoint number.
This stops the latter use and lets only gc-inodes use it.
The purpose of this patch is to allow the successive change use
"i_cno" for inode lookup.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/segment.h')
| -rw-r--r-- | fs/nilfs2/segment.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h index 17c487b..675d932 100644 --- a/fs/nilfs2/segment.h +++ b/fs/nilfs2/segment.h @@ -107,6 +107,7 @@ struct nilfs_segsum_pointer { * @sc_datablk_cnt: Data block count of a file * @sc_nblk_this_inc: Number of blocks included in the current logical segment * @sc_seg_ctime: Creation time + * @sc_cno: checkpoint number of current log * @sc_flags: Internal flags * @sc_state_lock: spinlock for sc_state and so on * @sc_state: Segctord state flags @@ -156,7 +157,7 @@ struct nilfs_sc_info { unsigned long sc_datablk_cnt; unsigned long sc_nblk_this_inc; time_t sc_seg_ctime; - + __u64 sc_cno; unsigned long sc_flags; spinlock_t sc_state_lock; |
