From: Brian F. <bf...@re...> - 2013-05-30 19:31:56
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If request submission fails for an async request (i.e., get_user_pages() returns -ERESTARTSYS), we currently skip the -EIOCBQUEUED return and drop into wait_for_sync_kiocb() forever. Avoid this by always returning -EIOCBQUEUED for async requests. If an error occurs, the error is passed into fuse_aio_complete(), returned via aio_complete() and thus propagated to userspace via io_getevents(). Signed-off-by: Brian Foster <bf...@re...> --- v2: - Reduced this patch to a one liner by setting the error on the kiocb instead of breaking down the fuse_io_priv and returning the error via io_submit(). Based on review by Maxim P. v1: http://sourceforge.net/mailarchive/message.php?msg_id=30914381 fs/fuse/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index d9f4679..b3ad8d6 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2432,7 +2432,7 @@ fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, fuse_aio_complete(io, ret < 0 ? ret : 0, -1); /* we have a non-extending, async request, so return */ - if (ret > 0 && !is_sync_kiocb(iocb)) + if (!is_sync_kiocb(iocb)) return -EIOCBQUEUED; ret = wait_on_sync_kiocb(iocb); -- 1.8.1.4 |