[PATCH v4 04/15] mm/memory-failure: convert process iterator to for_each_process_rculock

[sashiko-bot at kernel.org]

> From: Ye Liu <liuye at kylinos.cn>
> 
> Replace the manual rcu_read_lock()/rcu_read_unlock() pairs combined
> with for_each_process() loop in mm/memory-failure.c with
> for_each_process_rculock(), which scopes the RCU read lock to the
> loop body via scoped_guard(rcu).
> 
> In collect_procs_file(), the page_pgoff() call now falls outside the
> RCU read-side critical section.  This is safe because page_pgoff()
> only reads folio->index and does not traverse any RCU-protected
> structures.
> 
> Signed-off-by: Ye Liu <liuye at kylinos.cn>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/20260921092101.89285-1-ye.liu@linux.dev?part=4