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| author | Jakub Kicinski <kuba@kernel.org> | 2024-08-01 10:43:15 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-01 10:45:23 -0700 |
| commit | 5fa35bd39ce106889909444c937a10b2d3a79f08 (patch) | |
| tree | bb1fde34b2c9907b1c4b69f6db992bbda0b02355 /mm/page_alloc.c | |
| parent | 743ff02152bc46bb4a2f2a49ec891c87eba6ab5b (diff) | |
| parent | 183d46ff422ef9f3d755b6808ef3faa6d009ba3a (diff) | |
| download | lwn-5fa35bd39ce106889909444c937a10b2d3a79f08.tar.gz lwn-5fa35bd39ce106889909444c937a10b2d3a79f08.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts or adjacent changes.
Link: https://patch.msgid.link/20240801131917.34494-1-pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8337926b89d4..28f80daf5c04 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2343,16 +2343,20 @@ void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp) static void drain_pages_zone(unsigned int cpu, struct zone *zone) { struct per_cpu_pages *pcp = per_cpu_ptr(zone->per_cpu_pageset, cpu); - int count = READ_ONCE(pcp->count); - - while (count) { - int to_drain = min(count, pcp->batch << CONFIG_PCP_BATCH_SCALE_MAX); - count -= to_drain; + int count; + do { spin_lock(&pcp->lock); - free_pcppages_bulk(zone, to_drain, pcp, 0); + count = pcp->count; + if (count) { + int to_drain = min(count, + pcp->batch << CONFIG_PCP_BATCH_SCALE_MAX); + + free_pcppages_bulk(zone, to_drain, pcp, 0); + count -= to_drain; + } spin_unlock(&pcp->lock); - } + } while (count); } /* @@ -5815,6 +5819,23 @@ unsigned long free_reserved_area(void *start, void *end, int poison, const char return pages; } +void free_reserved_page(struct page *page) +{ + if (mem_alloc_profiling_enabled()) { + union codetag_ref *ref = get_page_tag_ref(page); + + if (ref) { + set_codetag_empty(ref); + put_page_tag_ref(ref); + } + } + ClearPageReserved(page); + init_page_count(page); + __free_page(page); + adjust_managed_page_count(page, 1); +} +EXPORT_SYMBOL(free_reserved_page); + static int page_alloc_cpu_dead(unsigned int cpu) { struct zone *zone; |