The patch titled
Subject: tools/vm/page-types.c: fix "kpagecount returned fewer pages than expected" failures
has been added to the -mm tree. Its filename is
tools-vm-page-typesc-fix-kpagecount-returned-fewer-pages-than-expected-failures.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/tools-vm-page-typesc-fix-kpagecount-returned-fewer-pages-than-expected-failures.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/tools-vm-page-typesc-fix-kpagecount-returned-fewer-pages-than-expected-failures.patch
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------------------------------------------------------
From: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx>
Subject: tools/vm/page-types.c: fix "kpagecount returned fewer pages than expected" failures
Because kpagecount_read() fakes success if map counts are not being
collected, clamp the page count passed to it by walk_pfn() to the pages
value returned by the preceding call to kpageflags_read().
Link: http://lkml.kernel.org/r/1543962269-26116-1-git-send-email-anthony.yznaga@xxxxxxxxxx
Fixes: 7f1d23e60718 ("tools/vm/page-types.c: include shared map counts")
Signed-off-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/vm/page-types.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/vm/page-types.c~tools-vm-page-typesc-fix-kpagecount-returned-fewer-pages-than-expected-failures
+++ a/tools/vm/page-types.c
@@ -701,7 +701,7 @@ static void walk_pfn(unsigned long voffs
if (kpagecgroup_read(cgi, index, pages) != pages)
fatal("kpagecgroup returned fewer pages than expected");
- if (kpagecount_read(cnt, index, batch) != pages)
+ if (kpagecount_read(cnt, index, pages) != pages)
fatal("kpagecount returned fewer pages than expected");
for (i = 0; i < pages; i++)
_
Patches currently in -mm which might be from anthony.yznaga@xxxxxxxxxx are
tools-vm-page-typesc-fix-kpagecount-returned-fewer-pages-than-expected-failures.patch
