[patch 2/3] mm: SLOB fix reclaim_state

[npiggin@suse.de]

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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
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Nick Piggin <npiggin@suse.de>
---
 mm/slob.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Index: linux-2.6/mm/slob.c
===================================================================
--- linux-2.6.orig/mm/slob.c
+++ linux-2.6/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_new_pages(gfp_t gfp, i
 
 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 @@ static void slob_free(void *block, int s
 		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;
 	}
 


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