From 408ef501b894e94581c62e4d9aea18589786ddbb Mon Sep 17 00:00:00 2001 From: Vasily Averin Date: Thu, 25 Jun 2020 12:39:51 +0300 Subject: [PATCH] fuse: don't ignore errors from fuse_writepages_fill() [ Upstream commit 7779b047a57f6824a43d0e1f70de2741b7426b9d ] fuse_writepages() ignores some errors taken from fuse_writepages_fill() I believe it is a bug: if .writepages is called with WB_SYNC_ALL it should either guarantee that all data was successfully saved or return error. Fixes: 26d614df1da9 ("fuse: Implement writepages callback") Signed-off-by: Vasily Averin Signed-off-by: Miklos Szeredi Signed-off-by: Sasha Levin --- fs/fuse/file.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 66214707a945..d5963ef65c38 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -2148,10 +2148,8 @@ static int fuse_writepages(struct address_space *mapping, err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data); if (data.wpa) { - /* Ignore errors if we can write at least one page */ WARN_ON(!data.wpa->ia.ap.num_pages); fuse_writepages_send(&data); - err = 0; } if (data.ff) fuse_file_put(data.ff, false, false);