[dm-devel] [PATCH 2/3] kcopyd+snapshots race condition
Mikulas Patocka
mpatocka at redhat.com
Wed Mar 18 23:14:42 UTC 2009
Test for job->pages being zero. This will be needed for the next patch.
Signed-off-by: Mikulas Patocka <mpatocka at redhat.com>
---
drivers/md/dm-kcopyd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6.29-rc8-devel/drivers/md/dm-kcopyd.c
===================================================================
--- linux-2.6.29-rc8-devel.orig/drivers/md/dm-kcopyd.c 2009-03-18 20:39:07.000000000 +0100
+++ linux-2.6.29-rc8-devel/drivers/md/dm-kcopyd.c 2009-03-18 20:39:19.000000000 +0100
@@ -297,7 +297,8 @@ static int run_complete_job(struct kcopy
dm_kcopyd_notify_fn fn = job->fn;
struct dm_kcopyd_client *kc = job->kc;
- kcopyd_put_pages(kc, job->pages);
+ if (job->pages)
+ kcopyd_put_pages(kc, job->pages);
mempool_free(job, kc->job_pool);
fn(read_err, write_err, context);
More information about the dm-devel
mailing list