From 55c6c814ae0aa896781d3c51e4608de542624f64 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 28 Jun 2014 08:10:12 -0400 Subject: percpu-refcount, aio: use percpu_ref_cancel_init() in ioctx_alloc() ioctx_alloc() reaches inside percpu_ref and directly frees ->pcpu_count in its failure path, which is quite gross. percpu_ref has been providing a proper interface to do this, percpu_ref_cancel_init(), for quite some time now. Let's use that instead. This patch doesn't introduce any behavior changes. Signed-off-by: Tejun Heo Acked-by: Benjamin LaHaise Cc: Kent Overstreet --- fs/aio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/aio.c b/fs/aio.c index 4f078c054b41..5e0d7f9cb693 100644 --- a/fs/aio.c +++ b/fs/aio.c @@ -715,8 +715,8 @@ err_ctx: err: mutex_unlock(&ctx->ring_lock); free_percpu(ctx->cpu); - free_percpu(ctx->reqs.pcpu_count); - free_percpu(ctx->users.pcpu_count); + percpu_ref_cancel_init(&ctx->reqs); + percpu_ref_cancel_init(&ctx->users); kmem_cache_free(kioctx_cachep, ctx); pr_debug("error allocating ioctx %d\n", err); return ERR_PTR(err); -- cgit v1.2.3