[PATCH -next] fuse: return the more nuanced writeback error on close()

ChenXiaoSong
2022-05-18T14:44:01Z

As filemap_check_errors() only report -EIO or -ENOSPC, we return more nuanced
writeback error -(file->f_mapping->wb_err & MAX_ERRNO).

filemap_write_and_wait
filemap_write_and_wait_range
filemap_check_errors
-ENOSPC or -EIO
filemap_check_wb_err
errseq_check
return -(file->f_mapping->wb_err & MAX_ERRNO)

Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
---
fs/fuse/file.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index f18d14d5fea1..4a0add7f0a17 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -488,8 +488,9 @@ static int fuse_flush(struct file *file, fl_owner_t id)
inode_unlock(inode);

err = filemap_check_errors(file->f_mapping);
+ /* return more nuanced writeback errors */
if (err)
- return err;
+ return filemap_check_wb_err(file->f_mapping, 0);

err = 0;
if (fm->fc->no_flush)
--
2.31.1