aio: use kmem_cache_free() instead of kfree()

Wei Yongjun · Al Viro · commit 6af1c849dfb1 · 2019-04-04T20:13:59.000-04:00
memory allocated by kmem_cache_alloc() should be freed using kmem_cache_free(), not kfree(). Fixes: fa0ca2a ("deal with get_reqs_available() in aio_get_req() itself") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/aio.c b/fs/aio.c
@@ -1034,7 +1034,7 @@ static inline struct aio_kiocb *aio_get_req(struct kioctx *ctx)
 		return NULL;
 
 	if (unlikely(!get_reqs_available(ctx))) {
-		kfree(req);
+		kmem_cache_free(kiocb_cachep, req);
 		return NULL;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -1034,7 +1034,7 @@ static inline struct aio_kiocb aio_get_req(struct kioctx ctx)`
`1034`	`1034`	`return NULL;`
`1035`	`1035`
`1036`	`1036`	`if (unlikely(!get_reqs_available(ctx))) {`
`1037`		`- kfree(req);`
	`1037`	`+ kmem_cache_free(kiocb_cachep, req);`
`1038`	`1038`	`return NULL;`
`1039`	`1039`	`}`
`1040`	`1040`