The patch titled
Subject: thp, vmstats: add counters for huge file pages
has been removed from the -mm tree. Its filename was
thp-vmstats-add-counters-for-huge-file-pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: thp, vmstats: add counters for huge file pages
THP_FILE_ALLOC: how many times huge page was allocated and put page
cache.
THP_FILE_MAPPED: how many times file huge page was mapped.
Link: http://lkml.kernel.org/r/1466021202-61880-13-git-send-email-kirill.shutemov@xxxxxxxxxxxxxxx
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/vm_event_item.h | 7 +++++++
mm/memory.c | 1 +
mm/vmstat.c | 2 ++
3 files changed, 10 insertions(+)
diff -puN include/linux/vm_event_item.h~thp-vmstats-add-counters-for-huge-file-pages include/linux/vm_event_item.h
--- a/include/linux/vm_event_item.h~thp-vmstats-add-counters-for-huge-file-pages
+++ a/include/linux/vm_event_item.h
@@ -70,6 +70,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PS
THP_FAULT_FALLBACK,
THP_COLLAPSE_ALLOC,
THP_COLLAPSE_ALLOC_FAILED,
+ THP_FILE_ALLOC,
+ THP_FILE_MAPPED,
THP_SPLIT_PAGE,
THP_SPLIT_PAGE_FAILED,
THP_DEFERRED_SPLIT_PAGE,
@@ -100,4 +102,9 @@ enum vm_event_item { PGPGIN, PGPGOUT, PS
NR_VM_EVENT_ITEMS
};
+#ifndef CONFIG_TRANSPARENT_HUGEPAGE
+#define THP_FILE_ALLOC ({ BUILD_BUG(); 0; })
+#define THP_FILE_MAPPED ({ BUILD_BUG(); 0; })
+#endif
+
#endif /* VM_EVENT_ITEM_H_INCLUDED */
diff -puN mm/memory.c~thp-vmstats-add-counters-for-huge-file-pages mm/memory.c
--- a/mm/memory.c~thp-vmstats-add-counters-for-huge-file-pages
+++ a/mm/memory.c
@@ -2968,6 +2968,7 @@ static int do_set_pmd(struct fault_env *
/* fault is handled */
ret = 0;
+ count_vm_event(THP_FILE_MAPPED);
out:
spin_unlock(fe->ptl);
return ret;
diff -puN mm/vmstat.c~thp-vmstats-add-counters-for-huge-file-pages mm/vmstat.c
--- a/mm/vmstat.c~thp-vmstats-add-counters-for-huge-file-pages
+++ a/mm/vmstat.c
@@ -817,6 +817,8 @@ const char * const vmstat_text[] = {
"thp_fault_fallback",
"thp_collapse_alloc",
"thp_collapse_alloc_failed",
+ "thp_file_alloc",
+ "thp_file_mapped",
"thp_split_page",
"thp_split_page_failed",
"thp_deferred_split_page",
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
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