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[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 <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Milan Broz 2006-12-08 02:41:11 -08:00 committed by Linus Torvalds
parent 45e157206c
commit 31c93a0c29
1 changed files with 12 additions and 7 deletions
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19
drivers/md/dm-snap.c
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@ -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);