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authorLinus Torvalds <torvalds@linux-foundation.org>2013-12-06 08:32:59 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-12-06 08:32:59 -0800
commitc537aba00e3f1df8ce6c7c9fcb98b82c0c2d1d2c (patch)
tree487b3ceb33b2903fa03ead519a8459d994f77dc4
parent7adfff587bc4d9ed8f85a31b12464513fda886a2 (diff)
parentd1b9432712a25eeb06114fb4b587133525a47de5 (diff)
Merge git://git.kvack.org/~bcrl/aio-next
Pull aio fix from Benjamin LaHaise: "AIO fix from Gu Zheng that fixes a GPF that Dave Jones uncovered with trinity" * git://git.kvack.org/~bcrl/aio-next: aio: clean up aio ring in the fail path
-rw-r--r--fs/aio.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 08159ed13649..6efb7f6cb22e 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -367,8 +367,10 @@ static int aio_setup_ring(struct kioctx *ctx)
if (nr_pages > AIO_RING_PAGES) {
ctx->ring_pages = kcalloc(nr_pages, sizeof(struct page *),
GFP_KERNEL);
- if (!ctx->ring_pages)
+ if (!ctx->ring_pages) {
+ put_aio_ring_file(ctx);
return -ENOMEM;
+ }
}
ctx->mmap_size = nr_pages * PAGE_SIZE;
@@ -645,7 +647,7 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
aio_nr + nr_events < aio_nr) {
spin_unlock(&aio_nr_lock);
err = -EAGAIN;
- goto err;
+ goto err_ctx;
}
aio_nr += ctx->max_reqs;
spin_unlock(&aio_nr_lock);
@@ -662,6 +664,8 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
err_cleanup:
aio_nr_sub(ctx->max_reqs);
+err_ctx:
+ aio_free_ring(ctx);
err:
free_percpu(ctx->cpu);
free_percpu(ctx->reqs.pcpu_count);