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authorDavidlohr Bueso <dave@stgolabs.net>2014-12-12 16:56:10 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-13 12:42:48 -0800
commitf5f302e21257ebb0c074bbafc37606c26d28cc3d (patch)
tree9487dd9bdf2df8a1989af3dde28d64b84f04ede5 /include
parent16a7ade8af3b4ad30aec880177ff291bb5ea86d1 (diff)
downloadlinux-f5f302e21257ebb0c074bbafc37606c26d28cc3d.tar.bz2
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 'include')
-rw-r--r--include/linux/vm_event_item.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 730334cdf037..9246d32dc973 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -90,6 +90,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
#ifdef CONFIG_DEBUG_VM_VMACACHE
VMACACHE_FIND_CALLS,
VMACACHE_FIND_HITS,
+ VMACACHE_FULL_FLUSHES,
#endif
NR_VM_EVENT_ITEMS
};