From: Dave Kleikamp <shaggy@austin.ibm.com>
To: linux-mm <linux-mm@kvack.org>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>,
Dave McCracken <dmccr@us.ibm.com>,
Badari Pulavarty <pbadari@us.ibm.com>
Subject: [RFC:PATCH 007/008] Make sure tail page is freed correctly
Date: Mon, 17 Jul 2006 22:09:05 -0600 [thread overview]
Message-ID: <20060718040903.11926.75564.sendpatchset@kleikamp.austin.ibm.com> (raw)
In-Reply-To: <20060718040804.11926.76333.sendpatchset@kleikamp.austin.ibm.com>
Make sure tail page is freed correctly
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
---
diff -Nurp linux006/mm/page_alloc.c linux007/mm/page_alloc.c
--- linux006/mm/page_alloc.c 2006-06-17 20:49:35.000000000 -0500
+++ linux007/mm/page_alloc.c 2006-07-17 23:04:38.000000000 -0500
@@ -37,6 +37,7 @@
#include <linux/nodemask.h>
#include <linux/vmalloc.h>
#include <linux/mempolicy.h>
+#include <linux/file_tail.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -733,6 +734,13 @@ static void fastcall free_hot_cold_page(
struct per_cpu_pages *pcp;
unsigned long flags;
+#ifdef CONFIG_FILE_TAILS
+ if (PageTail(page)) {
+ /* Not a real page */
+ page_cache_free_tail(page);
+ return;
+ }
+#endif
arch_free_page(page, 0);
if (PageAnon(page))
--
David Kleikamp
IBM Linux Technology Center
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next prev parent reply other threads:[~2006-07-18 4:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-18 4:08 [RFC:PATCH 000/008] Tail Packing in the the Page Cache Dave Kleikamp
2006-07-18 4:08 ` [RFC:PATCH 001/008] Changes to common header files Dave Kleikamp
2006-07-18 4:08 ` [RFC:PATCH 002/008] Base file tail function Dave Kleikamp
2006-07-18 4:08 ` [RFC:PATCH 003/008] Handle tail pages in kmap & kmap_atomic Dave Kleikamp
2006-07-18 4:08 ` [RFC:PATCH 004/008] Wrap i_size_write Dave Kleikamp
2006-07-18 4:08 ` [RFC:PATCH 005/008] unpack tail page to avoid memory mapping Dave Kleikamp
2006-07-18 4:08 ` [RFC:PATCH 006/008] Don't need to zero past end-of-file in file tail Dave Kleikamp
2006-07-18 4:09 ` Dave Kleikamp [this message]
2006-07-18 4:09 ` [RFC:PATCH 008/008] Handle file tails in mm/filemap.c Dave Kleikamp
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