3.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Benjamin LaHaise <b...@kvack.org>
commit 1881686f842065d2f92ec9c6424830ffc17d23b0 upstream.
e34ecee2ae791df674dfb466ce40692ca6218e43 reworked the percpu reference
counting to correct a bug trinity found. Unfortunately, the change lead
to kioctxes being leaked because there was no final reference count to
put. Add that reference count back in to fix things.
Signed-off-by: Benjamin LaHaise <b...@kvack.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/aio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -652,7 +652,8 @@ static struct kioctx *ioctx_alloc(unsign
aio_nr += ctx->max_reqs;
spin_unlock(&aio_nr_lock);
- percpu_ref_get(&ctx->users); /* io_setup() will drop this ref */
+ percpu_ref_get(&ctx->users); /* io_setup() will drop this ref */
+ percpu_ref_get(&ctx->reqs); /* free_ioctx_users() will drop this */
err = ioctx_add_table(ctx, mm);
if (err)
--
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