mm/khugepaged: replace mutex_lock/mutex_unlock usage with guard macro

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Currently, khugepaged locks the khugepaged_mutex in two functions:
start_stop_khugepaged and khugepaged_min_free_kbytes_update.  Remove
mutex_lock/mutex_unlock usage in these functions and replace it with the
guard macro.  This makes the code more readable (removing a goto
statement) and makes it harder to introduce bugs in the future.  No
functional changes introduced.

Link: https://lore.kernel.org/20260730204724.16912-1-jakovnovak30@gmail.com
Signed-off-by: Jakov Novak <jakovnovak30@gmail.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Nico Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

Jakov Novak 2026-07-30 22:47:24 +02:00 • committed by Andrew Morton

parent f276408a81

commit 0ec282155c

1 changed files with 15 additions and 16 deletions

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mm/khugepaged.c

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