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| author | Chanho Min <chanho.min@lge.com> | 2020-01-04 21:59:36 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-04 22:55:09 +0100 |
| commit | ac8f05da5174c560de122c499ce5dfb5d0dfbee5 (patch) | |
| tree | e88be16685158446a8a85cb03741ee55f8499e0b /mm/zsmalloc.c | |
| parent | mm/memory_hotplug: shrink zones when offlining memory (diff) | |
| download | linux-ac8f05da5174c560de122c499ce5dfb5d0dfbee5.tar.xz linux-ac8f05da5174c560de122c499ce5dfb5d0dfbee5.zip | |
mm/zsmalloc.c: fix the migrated zspage statistics.
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>
Diffstat (limited to 'mm/zsmalloc.c')
| -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 2b2b9aae8a3c..22d17ecfe7df 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; |