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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-04-05 11:30:58 +0200
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-04-13 02:53:52 +0200
commitc85399c2da8b86de8f6877980294fa1a4a88a5a4 (patch)
tree0319b8ab4d8b7da4d614e46949755b8a9ba4eab0 /fs/nilfs2/sufile.h
parentnilfs2: segment usage file cleanups (diff)
downloadlinux-c85399c2da8b86de8f6877980294fa1a4a88a5a4.tar.xz
linux-c85399c2da8b86de8f6877980294fa1a4a88a5a4.zip
nilfs2: fix possible mismatch of sufile counters on recovery
On-disk counters ndirtysegs and ncleansegs of sufile, can go wrong after roll-forward recovery because nilfs_prepare_segment_for_recovery() function marks segments dirty without adjusting value of these counters. This fixes the problem by adding a function to sufile which does the operation adjusting the counters, and by letting the recovery function use it. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/sufile.h')
-rw-r--r--fs/nilfs2/sufile.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index 449a6e2671b0..a2e2efd4ade1 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -52,6 +52,8 @@ int nilfs_sufile_update(struct inode *, __u64, int,
struct buffer_head *));
void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
struct buffer_head *);
+void nilfs_sufile_do_scrap(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
void nilfs_sufile_do_free(struct inode *, __u64, struct buffer_head *,
struct buffer_head *);
void nilfs_sufile_do_set_error(struct inode *, __u64, struct buffer_head *,
@@ -78,6 +80,16 @@ static inline int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum)
}
/**
+ * nilfs_sufile_scrap - make a segment garbage
+ * @sufile: inode of segment usage file
+ * @segnum: segment number to be freed
+ */
+static inline int nilfs_sufile_scrap(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 1, nilfs_sufile_do_scrap);
+}
+
+/**
* nilfs_sufile_free - free segment
* @sufile: inode of segment usage file
* @segnum: segment number to be freed