diff options
| author | Chanho Min <chanho.min@lge.com> | 2020-01-04 12:59:36 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-09 10:17:54 +0100 |
| commit | 1501713aee057266a0774f757678e482a1dd047b (patch) | |
| tree | 3df931437288afa4789b0dda1ac2d5a954f746bb /mm | |
| parent | 26e5eab93db02f82fd24ff76ce363958c6433936 (diff) | |
mm/zsmalloc.c: fix the migrated zspage statistics.
commit ac8f05da5174c560de122c499ce5dfb5d0dfbee5 upstream.
When zspage is migrated to the other zone, the zone page state should be
updated as well, otherwise the NR_ZSPAGE for each zone shows wrong
counts including proc/zoneinfo in practice.
Link: http://lkml.kernel.org/r/1575434841-48009-1-git-send-email-chanho.min@lge.com
Fixes: 91537fee0013 ("mm: add NR_ZSMALLOC to vmstat")
Signed-off-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Jinsuk Choi <jjinsuk.choi@lge.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: <stable@vger.kernel.org> [4.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/zsmalloc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 3197de2a3896..c6df483b3751 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -2088,6 +2088,11 @@ int zs_page_migrate(struct address_space *mapping, struct page *newpage, zs_pool_dec_isolated(pool); } + if (page_zone(newpage) != page_zone(page)) { + dec_zone_page_state(page, NR_ZSPAGES); + inc_zone_page_state(newpage, NR_ZSPAGES); + } + reset_page(page); put_page(page); page = newpage; |