[PATCH 0/3] Add and use get_cpu_cacheinfo_level()

From: Tony Luck
Date: Fri May 31 2024 - 15:57:43 EST


[get_maintainer.pl is vague about who owns <linux/cacheinfo.h>
to I've scattershooted some of the folks that committed changes
for this file]

This helper function came up in discussion of the resctrl patches
for Sub-NUMA Cluster (SNC) support. Reinette pointed out[1] that there
are already two places where it would clean things up by avoiding
open coding. The SNC patches will add two additional call sites.

So rather than have this jammed up as part of the SNC series, I'm
posting it as a simple standalone cleanup.

Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx>

[1] https://lore.kernel.org/all/050c64b3-20b3-4db6-b782-f5124ebaab31@xxxxxxxxx/

Tony Luck (3):
cacheinfo: Add function to get cacheinfo for a given (cpu, cachelevel)
x86/resctrl: Replace open code cacheinfo search in
pseudo_lock_region_init()
x86/resctrl: Replace open code cacheinfo search in
rdtgroup_cbm_to_size()

include/linux/cacheinfo.h | 21 ++++++++++++++++-----
arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 17 ++++++-----------
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 14 +++++---------
3 files changed, 27 insertions(+), 25 deletions(-)


base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
--
2.45.0