From: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
To: linux-mm <linux-mm@kvack.org>
Subject: [RFC:PATCH 011/012] Make sure tail page is freed correctly
Date: Thu, 24 May 2007 08:12:31 -0400 [thread overview]
Message-ID: <20070524121230.13533.57602.sendpatchset@kleikamp.austin.ibm.com> (raw)
In-Reply-To: <20070524121130.13533.32563.sendpatchset@kleikamp.austin.ibm.com>
Make sure tail page is freed correctly
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
---
mm/page_alloc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff -Nurp linux010/mm/page_alloc.c linux011/mm/page_alloc.c
--- linux010/mm/page_alloc.c 2007-05-21 15:15:48.000000000 -0500
+++ linux011/mm/page_alloc.c 2007-05-23 22:53:12.000000000 -0500
@@ -41,6 +41,7 @@
#include <linux/pfn.h>
#include <linux/backing-dev.h>
#include <linux/fault-inject.h>
+#include <linux/file_tail.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -796,6 +797,11 @@ static void fastcall free_hot_cold_page(
struct per_cpu_pages *pcp;
unsigned long flags;
+ if (unlikely(PageFileTail(page))) {
+ page_cache_free_tail(page);
+ return;
+ }
+
if (PageAnon(page))
page->mapping = NULL;
if (free_pages_check(page))
--
David Kleikamp
IBM Linux Technology Center
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next prev parent reply other threads:[~2007-05-24 12:13 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-24 12:11 [RFC:PATCH 000/012] VM Page Tails Dave Kleikamp
2007-05-24 12:11 ` [RFC:PATCH 001/012] Make iommu_map_sg deal with less-than-page-aligned data Dave Kleikamp
2007-05-24 12:11 ` [RFC:PATCH 002/012] Allow file systems to specify whether to store file tails Dave Kleikamp
2007-05-24 12:11 ` [RFC:PATCH 003/012] Add tail to address space and define PG_pagetail page flag Dave Kleikamp
2007-05-24 12:11 ` [RFC:PATCH 004/012] Replace PAGE_CACHE_SIZE with page_data_size() Dave Kleikamp
2007-05-24 12:11 ` [RFC:PATCH 005/012] Base file tail function Dave Kleikamp
2007-05-24 12:12 ` [RFC:PATCH 006/012] Modify lowmem_page_address() & page_to_phys() to special case tail page Dave Kleikamp
2007-05-24 12:12 ` [RFC:PATCH 007/012] Avoid page_to_pfn() on " Dave Kleikamp
2007-05-24 12:12 ` [RFC:PATCH 008/012] bh_offset needs to take page_address into consideration Dave Kleikamp
2007-05-24 12:12 ` [RFC:PATCH 009/012] Wrap i_size_write Dave Kleikamp
2007-05-24 12:12 ` [RFC:PATCH 010/012] unpack tail page to avoid memory mapping Dave Kleikamp
2007-05-24 12:12 ` Dave Kleikamp [this message]
2007-05-24 12:12 ` [RFC:PATCH 012/012] Add tail hooks into file_map.c Dave Kleikamp
2007-05-24 12:45 ` [RFC:PATCH 000/012] VM File Tails Dave Kleikamp
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