diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2019-08-24 17:54:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-08-24 19:48:42 -0700 |
| commit | f7da677bc6e72033f0981b9d58b5c5d409fa641e (patch) | |
| tree | bb5fee2b23455ed3a0432607d03dfe79079bd804 /lib | |
| parent | 46d0b24c5ee10a15dfb25e20642f5a5ed59c5003 (diff) | |
| download | linux-f7da677bc6e72033f0981b9d58b5c5d409fa641e.tar.bz2 | |
mm, page_owner: handle THP splits correctly
THP splitting path is missing the split_page_owner() call that
split_page() has.
As a result, split THP pages are wrongly reported in the page_owner file
as order-9 pages. Furthermore when the former head page is freed, the
remaining former tail pages are not listed in the page_owner file at
all. This patch fixes that by adding the split_page_owner() call into
__split_huge_page().
Link: http://lkml.kernel.org/r/20190820131828.22684-2-vbabka@suse.cz
Fixes: a9627bc5e34e ("mm/page_owner: introduce split_page_owner and replace manual handling")
Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions