* Re: [PATCH -next] fuse: return the more nuanced writeback error on close()
2022-05-18 14:57 [PATCH -next] fuse: return the more nuanced writeback error on close() ChenXiaoSong
@ 2022-05-18 14:51 ` Al Viro
2022-05-23 1:23 ` chenxiaosong (A)
0 siblings, 1 reply; 3+ messages in thread
From: Al Viro @ 2022-05-18 14:51 UTC (permalink / raw)
To: ChenXiaoSong
Cc: miklos, linux-fsdevel, linux-kernel, liuyongqiang13, yi.zhang,
zhangxiaoxu5
On Wed, May 18, 2022 at 10:57:29PM +0800, ChenXiaoSong wrote:
> + /* return more nuanced writeback errors */
> if (err)
> - return err;
> + return filemap_check_wb_err(file->f_mapping, 0);
>
> err = 0;
As an aside, what the hell is that err = 0 about? Before or after
that patch, that is - "let's make err zero, in case it had somehow
magically changed ceased to be so since if (err) bugger_off just above"?
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH -next] fuse: return the more nuanced writeback error on close()
@ 2022-05-18 14:57 ChenXiaoSong
2022-05-18 14:51 ` Al Viro
0 siblings, 1 reply; 3+ messages in thread
From: ChenXiaoSong @ 2022-05-18 14:57 UTC (permalink / raw)
To: miklos
Cc: linux-fsdevel, linux-kernel, chenxiaosong2, liuyongqiang13,
yi.zhang, zhangxiaoxu5
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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH -next] fuse: return the more nuanced writeback error on close()
2022-05-18 14:51 ` Al Viro
@ 2022-05-23 1:23 ` chenxiaosong (A)
0 siblings, 0 replies; 3+ messages in thread
From: chenxiaosong (A) @ 2022-05-23 1:23 UTC (permalink / raw)
To: Al Viro
Cc: miklos, linux-fsdevel, linux-kernel, liuyongqiang13, yi.zhang,
zhangxiaoxu5
在 2022/5/18 22:51, Al Viro 写道:
> On Wed, May 18, 2022 at 10:57:29PM +0800, ChenXiaoSong wrote:
>
>> + /* return more nuanced writeback errors */
>> if (err)
>> - return err;
>> + return filemap_check_wb_err(file->f_mapping, 0);
>>
>> err = 0;
>
> As an aside, what the hell is that err = 0 about? Before or after
> that patch, that is - "let's make err zero, in case it had somehow
> magically changed ceased to be so since if (err) bugger_off just above"?
>
> .
>
err = 0 is no longer needed after if (err), I will send v2 patch to
remove the redundant code.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-05-23 1:23 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-05-18 14:57 [PATCH -next] fuse: return the more nuanced writeback error on close() ChenXiaoSong
2022-05-18 14:51 ` Al Viro
2022-05-23 1:23 ` chenxiaosong (A)
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