diff options
| author | Mel Gorman <mgorman@techsingularity.net> | 2023-10-10 09:31:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-10-10 11:10:00 +0200 |
| commit | ed2da8b725b932b1e2b2f4835bb664d47ed03031 (patch) | |
| tree | 3a93d7fe1e5fa5dd0843e5bbecf59a8ef8eada00 /include/linux/sched/numa_balancing.h | |
| parent | f3a6c97940fbd25d6c84c2d5642338fc99a9b35b (diff) | |
sched/numa: Trace decisions related to skipping VMAs
NUMA balancing skips or scans VMAs for a variety of reasons. In preparation
for completing scans of VMAs regardless of PID access, trace the reasons
why a VMA was skipped. In a later patch, the tracing will be used to track
if a VMA was forcibly scanned.
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20231010083143.19593-4-mgorman@techsingularity.net
Diffstat (limited to 'include/linux/sched/numa_balancing.h')
| -rw-r--r-- | include/linux/sched/numa_balancing.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/sched/numa_balancing.h b/include/linux/sched/numa_balancing.h index 3988762efe15..c127a1509e2f 100644 --- a/include/linux/sched/numa_balancing.h +++ b/include/linux/sched/numa_balancing.h @@ -15,6 +15,14 @@ #define TNF_FAULT_LOCAL 0x08 #define TNF_MIGRATE_FAIL 0x10 +enum numa_vmaskip_reason { + NUMAB_SKIP_UNSUITABLE, + NUMAB_SKIP_SHARED_RO, + NUMAB_SKIP_INACCESSIBLE, + NUMAB_SKIP_SCAN_DELAY, + NUMAB_SKIP_PID_INACTIVE, +}; + #ifdef CONFIG_NUMA_BALANCING extern void task_numa_fault(int last_node, int node, int pages, int flags); extern pid_t task_numa_group_id(struct task_struct *p); |