Eric Lee / smarc-ti-linux-kernel

Download as
Browse Code ยป

Commit 4307c14f3c77bc0cb0facfc9c67c7872505aaedf

Authored by Gu Zheng
Committed by Linus Torvalds
1 parent 0aa9a13d80
Exists in ti-lsk-linux-4.1.y and in 10 other branches dlt-processor-sdk-linux-03.00.00.04, processor-sdk-linux-02.00.01, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04

slab: fix the alias count (via sysfs) of slab cache 

We mark some slab caches (e.g.  kmem_cache_node) as unmergeable by
setting refcount to -1, and their alias should be 0, not refcount-1, so
correct it here.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

... ... @@ -4466,7 +4466,7 @@
4466 4466  
4467 4467 static ssize_t aliases_show(struct kmem_cache *s, char *buf)
4468 4468 {
4469   - return sprintf(buf, "%d\n", s->refcount - 1);
  4469 + return sprintf(buf, "%d\n", s->refcount < 0 ? 0 : s->refcount - 1);
4470 4470 }
4471 4471 SLAB_ATTR_RO(aliases);
4472 4472