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| author | Suren Baghdasaryan <surenb@google.com> | 2023-02-27 09:36:27 -0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-04-05 20:03:01 -0700 |
| commit | 52f238653e452e0fda61e880f263a173d219acd1 (patch) | |
| tree | 199cd083cb781048caaea10f3301280fcc7d2540 /include/linux/vm_event_item.h | |
| parent | 444eeb17437a0ef526c606e9141a415d3b7dfddd (diff) | |
| download | linux-stable-52f238653e452e0fda61e880f263a173d219acd1.tar.gz linux-stable-52f238653e452e0fda61e880f263a173d219acd1.tar.bz2 linux-stable-52f238653e452e0fda61e880f263a173d219acd1.zip | |
mm: introduce per-VMA lock statistics
Add a new CONFIG_PER_VMA_LOCK_STATS config option to dump extra statistics
about handling page fault under VMA lock.
Link: https://lkml.kernel.org/r/20230227173632.3292573-29-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/vm_event_item.h')
| -rw-r--r-- | include/linux/vm_event_item.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 7f5d1caf5890..8abfa1240040 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -150,6 +150,12 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, DIRECT_MAP_LEVEL2_SPLIT, DIRECT_MAP_LEVEL3_SPLIT, #endif +#ifdef CONFIG_PER_VMA_LOCK_STATS + VMA_LOCK_SUCCESS, + VMA_LOCK_ABORT, + VMA_LOCK_RETRY, + VMA_LOCK_MISS, +#endif NR_VM_EVENT_ITEMS }; |