diff options
| author | Gregory Price <gourry@gourry.net> | 2026-06-08 20:29:19 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-07-28 21:12:04 -0700 |
| commit | baff6d2d2708e109d2cbfa653e7ad2c5394eb168 (patch) | |
| tree | 1634a04d4250761326c743aa5779bba7477a855d /mm/page_alloc.c | |
| parent | 567c26a132574ebf63dd72b381f2e4037de697be (diff) | |
mm: constify oom_control, scan_control, and alloc_context nodemask
The nodemasks in these structures may come from a variety of sources,
including tasks and cpusets - and should never be modified by any code
when being passed around inside another context.
Link: https://lore.kernel.org/20260609002919.3967782-1-gourry@gourry.net
Signed-off-by: Gregory Price <gourry@gourry.net>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Tested-by: SeongJae Park <sj@kernel.org>
Acked-by: SeongJae Park <sj@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Koutný <mkoutny@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a460811eaa4d..549fa83045eb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3978,7 +3978,7 @@ try_this_zone: return NULL; } -static void warn_alloc_show_mem(gfp_t gfp_mask, nodemask_t *nodemask) +static void warn_alloc_show_mem(gfp_t gfp_mask, const nodemask_t *nodemask) { unsigned int filter = SHOW_MEM_FILTER_NODES; @@ -3998,7 +3998,7 @@ static void warn_alloc_show_mem(gfp_t gfp_mask, nodemask_t *nodemask) mem_cgroup_show_protected_memory(NULL); } -void warn_alloc(gfp_t gfp_mask, nodemask_t *nodemask, const char *fmt, ...) +void warn_alloc(gfp_t gfp_mask, const nodemask_t *nodemask, const char *fmt, ...) { struct va_format vaf; va_list args; @@ -4680,7 +4680,7 @@ check_retry_cpuset(int cpuset_mems_cookie, struct alloc_context *ac) return false; } -static void check_alloc_stall_warn(gfp_t gfp_mask, nodemask_t *nodemask, +static void check_alloc_stall_warn(gfp_t gfp_mask, const nodemask_t *nodemask, unsigned int order, unsigned long alloc_start_time) { static DEFINE_SPINLOCK(alloc_stall_lock); |