sched/numa: Move up the access pid reset logic
authorRaghavendra K T <raghavendra.kt@amd.com>
Tue, 10 Oct 2023 08:31:41 +0000 (09:31 +0100)
committerIngo Molnar <mingo@kernel.org>
Tue, 10 Oct 2023 09:10:01 +0000 (11:10 +0200)
commit2e2675db1906ac04809f5399bf1f5e30d56a6f3e
tree725cbe69d3ce781aba82eccc1a41318e03f734a8
parented2da8b725b932b1e2b2f4835bb664d47ed03031
sched/numa: Move up the access pid reset logic

Recent NUMA hinting faulting activity is reset approximately every
VMA_PID_RESET_PERIOD milliseconds. However, if the current task has not
accessed a VMA then the reset check is missed and the reset is potentially
deferred forever. Check if the PID activity information should be reset
before checking if the current task recently trapped a NUMA hinting fault.

[ mgorman@techsingularity.net: Rewrite changelog ]

Suggested-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Raghavendra K T <raghavendra.kt@amd.com>
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20231010083143.19593-5-mgorman@techsingularity.net
kernel/sched/fair.c