diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-04-06 19:01:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 08:31:19 -0700 |
| commit | c96fa464a567a2a8796009af0e79bc68af73f485 (patch) | |
| tree | 5467fcdc2a4a64dfad3c5cb627451b6f7e76809b /fs/nilfs2/segment.h | |
| parent | 458c5b0822a669d170fdb7bb16c9145f652ebe06 (diff) | |
nilfs2: mark minor flag for checkpoint created by internal operation
Nilfs creates checkpoints even for garbage collection or metadata updates
such as checkpoint mode change. So, user often sees checkpoints created
only by such internal operations.
This is inconvenient in some situations. For example, application that
monitors checkpoints and changes them to snapshots, will fall into an
infinite loop because it cannot distinguish internally created
checkpoints.
This patch solves this sort of problem by adding a flag to checkpoint for
identification.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/segment.h')
| -rw-r--r-- | fs/nilfs2/segment.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h index fbd162d71707..bb7d417fec62 100644 --- a/fs/nilfs2/segment.h +++ b/fs/nilfs2/segment.h @@ -185,6 +185,9 @@ enum { NILFS_SC_SUPER_ROOT, /* The latest segment has a super root */ NILFS_SC_PRIOR_FLUSH, /* Requesting immediate flush without making a checkpoint */ + NILFS_SC_HAVE_DELTA, /* Next checkpoint will have update of files + other than DAT, cpfile, sufile, or files + moved by GC */ }; /* sc_state */ |