mm: SLOB fix reclaim_state
SLOB does not correctly account reclaim_state.reclaimed_slab, so it will
break memory reclaim. Account it like SLAB does.
Cc: stable@kernel.org
Cc: linux-mm@kvack.org
Acked-by: Matt Mackall <mpm@selenic.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
diff --git a/mm/slob.c b/mm/slob.c
index a2d4ab3..f92e66d 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -60,6 +60,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/swap.h> /* struct reclaim_state */
#include <linux/cache.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -255,6 +256,8 @@
static void slob_free_pages(void *b, int order)
{
+ if (current->reclaim_state)
+ current->reclaim_state->reclaimed_slab += 1 << order;
free_pages((unsigned long)b, order);
}
@@ -407,7 +410,7 @@
spin_unlock_irqrestore(&slob_lock, flags);
clear_slob_page(sp);
free_slob_page(sp);
- free_page((unsigned long)b);
+ slob_free_pages(b, 0);
return;
}