From: Milan Broz Date: Fri, 8 Dec 2006 10:41:11 +0000 (-0800) Subject: [PATCH] dm: snapshot: abstract memory release X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=31c93a0c29bf96efd806ccf4ee81cacf04f255de;p=openwrt%2Fstaging%2Fblogic.git [PATCH] dm: snapshot: abstract memory release Move the code that releases memory used by a snapshot into a separate function. Signed-off-by: Milan Broz Signed-off-by: Alasdair G Kergon Cc: dm-devel@redhat.com Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index bbf861e4fed1..50e084df554e 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -564,6 +564,17 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) return r; } +static void __free_exceptions(struct dm_snapshot *s) +{ + kcopyd_client_destroy(s->kcopyd_client); + s->kcopyd_client = NULL; + + exit_exception_table(&s->pending, pending_cache); + exit_exception_table(&s->complete, exception_cache); + + s->store.destroy(&s->store); +} + static void snapshot_dtr(struct dm_target *ti) { struct dm_snapshot *s = (struct dm_snapshot *) ti->private; @@ -574,13 +585,7 @@ static void snapshot_dtr(struct dm_target *ti) /* After this returns there can be no new kcopyd jobs. */ unregister_snapshot(s); - kcopyd_client_destroy(s->kcopyd_client); - - exit_exception_table(&s->pending, pending_cache); - exit_exception_table(&s->complete, exception_cache); - - /* Deallocate memory used */ - s->store.destroy(&s->store); + __free_exceptions(s); dm_put_device(ti, s->origin); dm_put_device(ti, s->cow);