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From: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
To: linux-kernel@vger.kernel.org
Subject: [PATCH] 2.6.28, vmalloc.c, vmap_page_range
Date: Thu, 25 Dec 2008 22:02:35 +0100	[thread overview]
Message-ID: <20081225210235.GC5431@os.inf.tu-dresden.de> (raw)

Hi,

in 2.6.28, the flush_cache_vmap in vmap_page_range() is called with the end of
the range twice. The following patch fixes this for me.

Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
---
 vmalloc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- linux-2.6.28/mm/vmalloc.c	2008-12-25 00:26:37.000000000 +0100
+++ linux-2.6.28.a/mm/vmalloc.c	2008-12-25 21:45:43.118725744 +0100
@@ -155,7 +155,7 @@
 				pgprot_t prot, struct page **pages)
 {
 	pgd_t *pgd;
-	unsigned long next;
+	unsigned long next, start = addr;
 	int err = 0;
 	int nr = 0;
 
@@ -167,7 +167,7 @@
 		if (err)
 			break;
 	} while (pgd++, addr = next, addr != end);
-	flush_cache_vmap(addr, end);
+	flush_cache_vmap(start, end);
 
 	if (unlikely(err))
 		return err;




Adam
-- 
Adam                 adam@os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

             reply	other threads:[~2008-12-25 21:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-25 21:02 Adam Lackorzynski [this message]
2008-12-27  0:39 ` Andrew Morton
2008-12-27  3:36   ` Johannes Weiner
2008-12-27  9:02     ` Ingo Molnar
2008-12-27 14:25       ` Johannes Weiner
2008-12-27 12:03   ` Adam Lackorzynski

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