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| author | Davidlohr Bueso <dave@stgolabs.net> | 2014-12-12 16:56:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-13 12:42:48 -0800 |
| commit | f5f302e21257ebb0c074bbafc37606c26d28cc3d (patch) | |
| tree | 9487dd9bdf2df8a1989af3dde28d64b84f04ede5 /mm/vmstat.c | |
| parent | 16a7ade8af3b4ad30aec880177ff291bb5ea86d1 (diff) | |
| download | lwn-f5f302e21257ebb0c074bbafc37606c26d28cc3d.tar.gz lwn-f5f302e21257ebb0c074bbafc37606c26d28cc3d.zip | |
mm,vmacache: count number of system-wide flushes
These flushes deal with sequence number overflows, such as for long lived
threads. These are rare, but interesting from a debugging PoV. As such,
display the number of flushes when vmacache debugging is enabled.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index b090e9e3d626..1284f89fca08 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -900,6 +900,7 @@ const char * const vmstat_text[] = { #ifdef CONFIG_DEBUG_VM_VMACACHE "vmacache_find_calls", "vmacache_find_hits", + "vmacache_full_flushes", #endif #endif /* CONFIG_VM_EVENTS_COUNTERS */ }; |