diff options
| author | Brendan Jackman <jackmanb@google.com> | 2023-11-08 19:49:20 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-11 03:51:39 +0300 |
| commit | 17b46e7beb8fe4e4807f70aaa615cf50a5ba9d3a (patch) | |
| tree | 33c63ab7985c7d6c0a329165d54adc11894b6899 /mm | |
| parent | 2033c98cce666b0d125ae956613ab5111bb8d202 (diff) | |
| download | linux-17b46e7beb8fe4e4807f70aaa615cf50a5ba9d3a.tar.xz | |
mm/page_alloc: dedupe some memcg uncharging logic
The duplication makes it seem like some work is required before uncharging
in the !PageHWPoison case. But it isn't, so we can simplify the code a
little.
Note the PageMemcgKmem check is redundant, but I've left it in as it
avoids an unnecessary function call.
Link: https://lkml.kernel.org/r/20231108164920.3401565-1-jackmanb@google.com
Signed-off-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Yosry Ahmed <yosryahmed@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 733732e7e0ba..dd5e8a759d27 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1086,13 +1086,11 @@ static __always_inline bool free_pages_prepare(struct page *page, trace_mm_page_free(page, order); kmsan_free_page(page, order); + if (memcg_kmem_online() && PageMemcgKmem(page)) + __memcg_kmem_uncharge_page(page, order); + if (unlikely(PageHWPoison(page)) && !order) { - /* - * Do not let hwpoison pages hit pcplists/buddy - * Untie memcg state and reset page's owner - */ - if (memcg_kmem_online() && PageMemcgKmem(page)) - __memcg_kmem_uncharge_page(page, order); + /* Do not let hwpoison pages hit pcplists/buddy */ reset_page_owner(page, order); page_table_check_free(page, order); return false; @@ -1123,8 +1121,6 @@ static __always_inline bool free_pages_prepare(struct page *page, } if (PageMappingFlags(page)) page->mapping = NULL; - if (memcg_kmem_online() && PageMemcgKmem(page)) - __memcg_kmem_uncharge_page(page, order); if (is_check_pages_enabled()) { if (free_page_is_bad(page)) bad++; |