[PATCH v7 0/7] x86,fs/resctrl: Pave the way for MPAM counter assignment

[Ben Horgan]

Essentially a resend of v6, just adding a missing commit message separator, ---,
in the first commit. All patches now have Reinette's Reviewed-by tag, thanks!

Cover letter from v6:

No functional changes from v5. Just comment and commit message changes based on
review comments. Changelogs in patches.

Description from a previous version's cover letter:

A little bit of preparatory work to get ready for MPAM counter
assignment. Resctrl gained support last year for counter assignment for AMD
machines supporting ABMC. Tighten a few things up, that weren't needed for
AMD, so that the MPAM driver can emulate ABMC and hence support counter
assignment.

Based on v7.1-rc2

v1:
https://lore.kernel.org/lkml/20260225201905.3568624-1-ben.horgan@xxxxxxx/
v2:
https://lore.kernel.org/lkml/20260313174524.3482767-1-ben.horgan@xxxxxxx/
v3:
https://lore.kernel.org/lkml/20260319162225.378485-1-ben.horgan@xxxxxxx/
v4:
https://lore.kernel.org/lkml/20260326172551.1553871-1-ben.horgan@xxxxxxx/
v5:
https://lore.kernel.org/lkml/20260428130422.2287302-1-ben.horgan@xxxxxxx/
v6:
https://lore.kernel.org/lkml/20260505155741.3591201-1-ben.horgan@xxxxxxx/

Ben Horgan (7):
  fs/resctrl: Tidy up the error path in resctrl_mkdir_event_configs()
  x86,fs/resctrl: Create 'event_filter' files read only if they're not
    configurable
  fs/resctrl: Disallow the software controller when MBM counters are
    assignable
  fs/resctrl: Add monitor property 'mbm_cntr_assign_fixed'
  fs/resctrl: Continue counter allocation after failure
  fs/resctrl: Document that automatic counter assignment is best effort
  fs/resctrl: Document tasks file behaviour for task id 0 and idle tasks

 Documentation/filesystems/resctrl.rst | 22 +++++++++++-----
 arch/x86/kernel/cpu/resctrl/monitor.c |  1 +
 fs/resctrl/internal.h                 |  2 ++
 fs/resctrl/monitor.c                  | 30 ++++++++++++++++------
 fs/resctrl/rdtgroup.c                 | 36 ++++++++++++++++++---------
 include/linux/resctrl.h               | 18 ++++++++------
 6 files changed, 77 insertions(+), 32 deletions(-)

-- 
2.43.0