mm/slub: add comment explaining intentional kobject handling in sysfs_slab_add

Browse source

Add a comment to clarify why we don't call kobject_put() when
kobject_init_and_add() fails in sysfs_slab_add().

Per commit 2420baa8e0 ("mm/slab: Allow cache creation to proceed
even if sysfs registration fails"), sysfs failures are treated as
non-fatal and the cache continues to be used. Calling kobject_put()
would trigger slab_kmem_cache_release() which frees the entire
cache structure, so we intentionally skip it.

Suggested-by: Harry Yoo <harry@kernel.org>
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Acked-by: Harry Yoo (Oracle) <harry@kernel.org>
Link: https://patch.msgid.link/20260713070024.153552-1-zenghongling@kylinos.cn
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>

...

This commit is contained in:

Hongling Zeng 2026-07-13 15:00:24 +08:00 • committed by Vlastimil Babka (SUSE)

parent efa6a5b7bb

commit 56aa9b819e

1 changed files with 5 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

mm/slub.c

View file