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| author | Miles Chen <miles.chen@mediatek.com> | 2018-01-31 16:15:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-31 17:18:36 -0800 |
| commit | 0d2d5d40deb49314b6f701589e1cae3bca3aa94c (patch) | |
| tree | b066a9e18a35f8fa775e71c985f28920fcb4e98e /mm | |
| parent | 5d682681f8a2bd127748d707243661fcb00f7acb (diff) | |
| download | lwn-0d2d5d40deb49314b6f701589e1cae3bca3aa94c.tar.gz lwn-0d2d5d40deb49314b6f701589e1cae3bca3aa94c.zip | |
slub: remove obsolete comments of put_cpu_partial()
Commit d6e0b7fa1186 ("slub: make dead caches discard free slabs
immediately") makes put_cpu_partial() run with preemption disabled and
interrupts disabled when calling unfreeze_partials().
The comment: "put_cpu_partial() is done without interrupts disabled and
without preemption disabled" looks obsolete, so remove it.
Link: http://lkml.kernel.org/r/1516968550-1520-1-git-send-email-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slub.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/slub.c b/mm/slub.c index 733ba32c031b..693b7074bc53 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2222,9 +2222,7 @@ static void unfreeze_partials(struct kmem_cache *s, /* * Put a page that was just frozen (in __slab_free) into a partial page - * slot if available. This is done without interrupts disabled and without - * preemption disabled. The cmpxchg is racy and may put the partial page - * onto a random cpus partial slot. + * slot if available. * * If we did not find a slot then simply move all the partials to the * per node partial list. |