]> git.ipfire.org Git - thirdparty/kernel/linux.git/commit
x86/resctrl: Optimize cpumask_any_housekeeping()
authorYury Norov [NVIDIA] <yury.norov@gmail.com>
Thu, 15 May 2025 16:58:34 +0000 (16:58 +0000)
committerBorislav Petkov (AMD) <bp@alien8.de>
Thu, 15 May 2025 18:53:26 +0000 (20:53 +0200)
commit94f7531430285b4ec600693f7222c2ca29bd7472
tree120a2f9538d94ed97a3742e70f382f3f3c09aa93
parent5da703ef4e4a82b2f9a00f2b3a1eae5657e68a92
x86/resctrl: Optimize cpumask_any_housekeeping()

With the lack of cpumask_any_andnot_but(), cpumask_any_housekeeping()
has to abuse cpumask_nth() functions.

Update cpumask_any_housekeeping() to use the new cpumask_any_but()
and cpumask_any_andnot_but(). These two functions understand
RESCTRL_PICK_ANY_CPU, which simplifies cpumask_any_housekeeping()
significantly.

Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: James Morse <james.morse@arm.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Tested-by: Fenghua Yu <fenghuay@nvidia.com>
Tested-by: James Morse <james.morse@arm.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/20250515165855.31452-5-james.morse@arm.com
arch/x86/kernel/cpu/resctrl/internal.h