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aio: fix kioctx leak introduced by "aio: Fix a trinity splat" 

e34ecee2ae 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 <bcrl@kvack.org>
Cc: stable@vger.kernel.org
This commit is contained in:
Benjamin LaHaise 2013-12-21 15:49:28 -05:00
parent b7000adef1
commit 1881686f84
1 changed files with 2 additions and 1 deletions
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3
fs/aio.c
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@ -652,7 +652,8 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
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)