From ddb4873286e03e193c5a3bebb5fc6fa820e9ee3a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 13 Nov 2025 18:06:27 +0100 Subject: [PATCH] iomap: always run error completions in user context At least zonefs expects error completions to be able to sleep. Because error completions aren't performance critical, just defer them to workqueue context unconditionally. Fixes: 8dcc1a9d90c1 ("fs: New zonefs file system") Signed-off-by: Christoph Hellwig Link: https://patch.msgid.link/20251113170633.1453259-3-hch@lst.de Reviewed-by: Jan Kara Reviewed-by: Chaitanya Kulkarni Signed-off-by: Christian Brauner --- fs/iomap/direct-io.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 7659db85083af..765ab6dd66374 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -173,7 +173,18 @@ static void iomap_dio_done(struct iomap_dio *dio) WRITE_ONCE(dio->submit.waiter, NULL); blk_wake_io_task(waiter); - } else if (dio->flags & IOMAP_DIO_INLINE_COMP) { + return; + } + + /* + * Always run error completions in user context. These are not + * performance critical and some code relies on taking sleeping locks + * for error handling. + */ + if (dio->error) + dio->flags &= ~IOMAP_DIO_INLINE_COMP; + + if (dio->flags & IOMAP_DIO_INLINE_COMP) { WRITE_ONCE(iocb->private, NULL); iomap_dio_complete_work(&dio->aio.work); } else { -- 2.47.3