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authorJun'ichi Nomura <j-nomura@ce.jp.nec.com>2006-03-27 01:17:51 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-27 08:44:59 -0800
commit1ecac7fd74f2e5fb06a7719ecba55fb5778a9a47 (patch)
tree04cd89c4fc1a8996704d7b0df2e62fa1dc33388d /drivers
parent138728dc96529f20dfe970c470e51885a60e329f (diff)
[PATCH] dm flush queue EINTR
If dm_suspend() is cancelled, bios already added to the deferred list need to be submitted. Otherwise they remain 'in limbo' until there's a dm_resume(). Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.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')
-rw-r--r--drivers/md/dm.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index a64798ef481..48be69f3bcf 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1107,6 +1107,7 @@ int dm_suspend(struct mapped_device *md, int do_lockfs)
{
struct dm_table *map = NULL;
DECLARE_WAITQUEUE(wait, current);
+ struct bio *def;
int r = -EINVAL;
down(&md->suspend_lock);
@@ -1166,9 +1167,11 @@ int dm_suspend(struct mapped_device *md, int do_lockfs)
/* were we interrupted ? */
r = -EINTR;
if (atomic_read(&md->pending)) {
+ clear_bit(DMF_BLOCK_IO, &md->flags);
+ def = bio_list_get(&md->deferred);
+ __flush_deferred_io(md, def);
up_write(&md->io_lock);
unlock_fs(md);
- clear_bit(DMF_BLOCK_IO, &md->flags);
goto out;
}
up_write(&md->io_lock);