3.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jan Kara <j...@suse.cz>
commit 54c807e71d5ac59dee56c685f2b66e27cd54c475 upstream.
Running AIO is pinning inode in memory using file reference. Once AIO
is completed using aio_complete(), file reference is put and inode can
be freed from memory. So we have to be sure that calling aio_complete()
is the last thing we do with the inode.
CC: Christoph Hellwig <h...@infradead.org>
CC: Jens Axboe <ax...@kernel.dk>
CC: Jeff Moyer <jmo...@redhat.com>
Acked-by: Jeff Moyer <jmo...@redhat.com>
Signed-off-by: Jan Kara <j...@suse.cz>
Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
fs/direct-io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -304,9 +304,9 @@ static ssize_t dio_complete(struct dio *
dio->end_io(dio->iocb, offset, transferred,
dio->private, ret, is_async);
} else {
+ inode_dio_done(dio->inode);
if (is_async)
aio_complete(dio->iocb, ret, 0);
- inode_dio_done(dio->inode);
}
return ret;
--
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