Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.12 103/196] f2fs: wake up all waiters in f2fs_submit_discard_endio | Date | Tue, 25 Jul 2017 12:21:42 -0700 |
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4.12-stable review patch. If anyone has any objections, please let me know.
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From: Chao Yu <yuchao0@huawei.com>
commit e31b98215779e66a490471c6ad886ae231316699 upstream.
There could be more than one waiter waiting discard IO completion, so we need use complete_all() instead of complete() in f2fs_submit_discard_endio to avoid hungtask.
Fixes: ec9895add2c5 ("f2fs: don't hold cmd_lock during waiting discard command") Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/f2fs/segment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -751,7 +751,7 @@ static void f2fs_submit_discard_endio(st dc->error = bio->bi_error; dc->state = D_DONE; - complete(&dc->wait); + complete_all(&dc->wait); bio_put(bio); }
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