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fuse: don't ignore errors from fuse_writepages_fill()

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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: 26d614df1d ("fuse: Implement writepages callback")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Vasily Averin 2020-06-25 12:39:51 +03:00 committed by Miklos Szeredi
parent 6ddf3af93e
commit 7779b047a5
1 changed files with 0 additions and 2 deletions
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fs/fuse/file.c
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@ -2165,10 +2165,8 @@ 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);