Commit eafb1d64 authored by Vlastimil Babka's avatar Vlastimil Babka
Browse files

mm, slub: don't call flush_all() from slab_debug_trace_open() 



slab_debug_trace_open() can only be called on caches with SLAB_STORE_USER flag
and as with all slub debugging flags, such caches avoid cpu or percpu partial
slabs altogether, so there's nothing to flush.

Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
Acked-by: default avatarChristoph Lameter <cl@linux.com>
parent 7d2a07b7

mm/slub.c

+0 −3
Original line number Diff line number Diff line
@@ -5825,9 +5825,6 @@ static int slab_debug_trace_open(struct inode *inode, struct file *filep) 
	if (!alloc_loc_track(t, PAGE_SIZE / sizeof(struct location), GFP_KERNEL))

		return -ENOMEM;



	/* Push back cpu slabs */

	flush_all(s);



	for_each_kmem_cache_node(s, node, n) {

		unsigned long flags;

		struct page *page;