Re: [PATCH v4 0/4] jbd2/ext4/ocfs2: lockless jinode dirty range

[Theodore Ts'o]

On Fri, 06 Mar 2026 16:56:38 +0800, Li Chen wrote:
> This series makes the jbd2_inode dirty range tracking safe for lockless
> reads in jbd2 and filesystem callbacks used by ext4 and ocfs2.
> 
> Some paths access jinode fields without holding journal->j_list_lock
> (e.g. fast commit helpers and ordered truncate helpers). v1 used READ_ONCE()
> on i_dirty_start/end, but Matthew pointed out that loff_t can be torn on
> 32-bit platforms, and Jan suggested storing the dirty range in PAGE_SIZE
> units as pgoff_t.
> 
> [...]

Applied, thanks!

[1/4] jbd2: add jinode dirty range accessors
      commit: 5267f6ef49cb5fba426f2d286817b1355fde31da
[2/4] ext4: use jbd2 jinode dirty range accessor
      commit: 660d23669982202c99798658e2a15ccdd001f82b
[3/4] ocfs2: use jbd2 jinode dirty range accessor
      commit: be81084e032c2d74f51173e30f687ce13476cb73
[4/4] jbd2: store jinode dirty range in PAGE_SIZE units
      commit: 4edafa81a1d6020272d0c6eb68faeb810dd083c1

Best regards,
-- 
Theodore Ts'o <tytso@xxxxxxx>