On Wed, 09 Jul 2025 10:48:32 +0200, Jan Kara wrote:
> Currently we clear BH_New bit in case of error and also in the standard
> ext4_write_end() handler (in block_commit_write()). However
> ext4_journalled_write_end() misses this clearing and thus we are leaving
> stale BH_New bits behind. Generally ext4_block_write_begin() clears
> these bits before any harm can be done but in case blocksize < pagesize
> and we hit some error when processing a page with these stale bits,
> we'll try to zero buffers with these stale BH_New bits and jbd2 will
> complain (as buffers were not prepared for writing in this transaction).
> Fix the problem by clearing BH_New bits in ext4_journalled_write_end()
> and WARN if ext4_block_write_begin() sees stale BH_New bits.
>
> [...]
Applied, thanks!
[1/1] ext4: Make sure BH_New bit is cleared in ->write_end handler
commit: 91b8ca8b26729b729dda8a4eddb9aceaea706f37
Best regards,
--
Theodore Ts'o <tytso@xxxxxxx>
