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| author | Mark McLoughlin <markmc@redhat.com> | 2006-10-03 10:15:25 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-03 17:04:14 +0200 |
| commit | f9cea4f70734f743e0beb55552a9794fa5032645 (patch) | |
| tree | 7227221bc8913aedfa0f222c365137f549125efc /drivers/md | |
| parent | [PATCH] dm snapshot: allow zero chunk_size (diff) | |
| download | linux-f9cea4f70734f743e0beb55552a9794fa5032645.tar.xz linux-f9cea4f70734f743e0beb55552a9794fa5032645.zip | |
[PATCH] dm snapshot: fix metadata error handling
Fix the error handling when store.read_metadata is called: the error should be
returned immediately.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-snap.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 89f8dd1bfaa0..58c444fb189c 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -387,17 +387,6 @@ static inline ulong round_up(ulong n, ulong size) return (n + size) & ~size; } -static void read_snapshot_metadata(struct dm_snapshot *s) -{ - if (s->store.read_metadata(&s->store)) { - down_write(&s->lock); - s->valid = 0; - up_write(&s->lock); - - dm_table_event(s->table); - } -} - static int set_chunk_size(struct dm_snapshot *s, const char *chunk_size_arg, char **error) { @@ -528,7 +517,11 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) } /* Metadata must only be loaded into one table at once */ - read_snapshot_metadata(s); + r = s->store.read_metadata(&s->store); + if (r) { + ti->error = "Failed to read snapshot metadata"; + goto bad6; + } /* Add snapshot to the list of snapshots for this origin */ /* Exceptions aren't triggered till snapshot_resume() is called */ |