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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-04-06 19:01:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-07 08:31:19 -0700
commitc96fa464a567a2a8796009af0e79bc68af73f485 (patch)
tree5467fcdc2a4a64dfad3c5cb627451b6f7e76809b /fs/nilfs2/segment.h
parent458c5b0822a669d170fdb7bb16c9145f652ebe06 (diff)
downloadop-kernel-dev-c96fa464a567a2a8796009af0e79bc68af73f485.zip
op-kernel-dev-c96fa464a567a2a8796009af0e79bc68af73f485.tar.gz
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.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h
index fbd162d..bb7d417 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 */
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