Re: [PATCH v2 0/3] Cleanup and fix tools/mm/slabinfo utility
From: Vlastimil Babka
Date: Mon May 25 2026 - 04:42:52 EST
On 5/18/26 08:21, Xuewen Wang wrote:
> This series fixes one bug and cleans up two code quality issues in tools/mm/slabinfo:
>
> 1. Fix trace disable logic inversion: when the user intends to disable
> tracing (!tracing) and it is currently enabled (s->trace),
> set_obj() was called with 1 instead of 0, which is opposite to
> the intended behavior. All other options (sanity_checks, red_zone,
> poison, store_user) in the same function use 0 for the disable
> case.
>
> 2. Remove dead assignment in get_obj_and_str(): `x = NULL` sets the
> local parameter variable instead of `*x`, which is a no-op since
> `*x` was already set to NULL on the line above.
>
> 3. Remove redundant slab->partial assignment in read_slab_dir():
> slab->partial is assigned by get_obj("partial") and then
> immediately overwritten by get_obj_and_str("partial", &t).
>
> Xuewen Wang (3):
> tools/mm/slabinfo: Fix trace disable logic inversion
> tools/mm/slabinfo: remove dead assignment in get_obj_and_str()
> tools/mm/slabinfo: remove redundant slab->partial assignment
>
> tools/mm/slabinfo.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
Thanks, applied to slab/for-next
>
> ---
> Changes in v2:
> - Fix author email mismatch
> - Add Fixes tag for the bug fix (patch 1)
> - Remove unnecessary braces in patch 2 per reviewer suggestion
>
> Patches 1/3 and 3/3 carry Reviewed-by tag from SeongJae Park.
>
> v1:
> https://lore.kernel.org/all/20260515065325.4009527-1-18810879172@xxxxxxx/
>