github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

mm: slub: only warn once when allocating slab obj extensions fails

Browse Source 
In memory bound systems, a large number of warnings for failing this
allocation repeatedly may mask any real issues in the system
during memory pressure being reported in dmesg. Change this to
warning only once.

Signed-off-by: Usama Arif <usamaarif642@gmail.com>
Reported-by: Vlad Poenaru <vlad.wing@gmail.com>
Closes: https://lore.kernel.org/all/17fab2d6-5a74-4573-bcc3-b75951508f0a@gmail.com/
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Reviewed-by: SeongJae Park <sj@kernel.org>
Acked-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Usama Arif 2025-05-23 17:52:40 +01:00 committed by Vlastimil Babka
parent 46459154f9
commit 354ad60e12
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
mm/slub.c
View File

@ -2102,10 +2102,11 @@ prepare_slab_obj_exts_hook(struct kmem_cache *s, gfp_t flags, void *p)
slab = virt_to_slab(p);
if (!slab_obj_exts(slab) &&
WARN(alloc_slab_obj_exts(slab, s, flags, false),
"%s, %s: Failed to create slab extension vector!\n",
__func__, s->name))
alloc_slab_obj_exts(slab, s, flags, false)) {
pr_warn_once("%s, %s: Failed to create slab extension vector!\n",
__func__, s->name);
return NULL;
}
return slab_obj_exts(slab) + obj_to_index(s, slab, p);
}