slub: remove 'reserved' file from sysfs

Christoph doubts anyone was using the 'reserved' file in sysfs, so remove
it.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Jérôme Glisse <[email protected]>
Cc: "Kirill A . Shutemov" <[email protected]>
Cc: Lai Jiangshan <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/mm/slub.c b/mm/slub.c
index f885dcf09750f1c96c3f78bb8134311ab6b8ad81..15505479c3abb8265d8e4a48ffc1aafbf5d185a1 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5074,12 +5074,6 @@ static ssize_t destroy_by_rcu_show(struct kmem_cache *s, char *buf)
 }
 SLAB_ATTR_RO(destroy_by_rcu);
 
-static ssize_t reserved_show(struct kmem_cache *s, char *buf)
-{
-       return sprintf(buf, "0\n");
-}
-SLAB_ATTR_RO(reserved);
-
 #ifdef CONFIG_SLUB_DEBUG
 static ssize_t slabs_show(struct kmem_cache *s, char *buf)
 {
@@ -5392,7 +5386,6 @@ static struct attribute *slab_attrs[] = {
        &reclaim_account_attr.attr,
        &destroy_by_rcu_attr.attr,
        &shrink_attr.attr,
-       &reserved_attr.attr,
        &slabs_cpu_partial_attr.attr,
 #ifdef CONFIG_SLUB_DEBUG
        &total_objects_attr.attr,