On 1/9/25 10:23, 臧阳阳 wrote:
Jaegeuk Kim <jaeg...@kernel.org> 于2025年1月9日周四 02:29写道:


On 01/06, zangyangyang wrote:
From: zangyangyang1 <zangyangya...@xiaomi.com>

When f2fs_write_single_data_page fails, f2fs_write_cache_pages
will use the last 'submitted' value incorrectly, which will cause
'nwritten' and 'wbc->nr_to_write' calculation errors

Signed-off-by: zangyangyang1 <zangyangya...@xiaomi.com>
---
v3: No logical changes, just format patch
v2: Initialize "submitted" in f2fs_write_single_data_page()
---
  fs/f2fs/data.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 94f7b084f601..f772fbc7f331 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2816,6 +2816,9 @@ int f2fs_write_single_data_page(struct folio *folio, int 
*submitted,

       trace_f2fs_writepage(folio, DATA);

+     if (submitted)
+             *submitted = 0;

I don't think this is correct, as callers should handle it.

Hi, Chao, what do you think?

Both are fine to me, previously I suggest to handle it in f2fs_write_single_data_page(), because I'm worried about we may miss to handle it in any possible caller in further.

Thanks,


Thanks


+
       /* we should bypass data pages to proceed the kworker jobs */
       if (unlikely(f2fs_cp_error(sbi))) {
               mapping_set_error(folio->mapping, -EIO);
--
2.43.2



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