| Message ID | 1575434841-48009-1-git-send-email-chanho.min@lge.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [RESEND] mm/zsmalloc.c: fix the migrated zspage statistics. | expand |
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 2b2b9aa..22d17ec 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -2069,6 +2069,11 @@ static 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;
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. Cc: <stable@vger.kernel.org> [4.9+] 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> --- mm/zsmalloc.c | 5 +++++ 1 file changed, 5 insertions(+)