The patch titled
Use page_cache_xxx in mm/rmap.c
has been removed from the -mm tree. Its filename was
use-page_cache_xxx-in-mm-rmapc.patch
This patch was dropped because it was nacked
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: Use page_cache_xxx in mm/rmap.c
From: Christoph Lameter <clameter@xxxxxxx>
Use page_cache_xxx in mm/rmap.c
Reviewed-by: Dave Chinner <dgc@xxxxxxx>
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/rmap.c | 23 +++++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
diff -puN mm/rmap.c~use-page_cache_xxx-in-mm-rmapc mm/rmap.c
--- a/mm/rmap.c~use-page_cache_xxx-in-mm-rmapc
+++ a/mm/rmap.c
@@ -190,9 +190,21 @@ static void page_unlock_anon_vma(struct
static inline unsigned long
vma_address(struct page *page, struct vm_area_struct *vma)
{
- pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+ pgoff_t pgoff;
unsigned long address;
+ if (PageAnon(page))
+ pgoff = page->index;
+ else {
+ struct address_space *mapping = page->mapping;
+
+ if (!mapping)
+ /* Page was truncated */
+ return -EFAULT;
+
+ pgoff = page->index << mapping_order(mapping);
+ }
+
address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
if (unlikely(address < vma->vm_start || address >= vma->vm_end)) {
/* page should be within @vma mapping range */
@@ -348,7 +360,7 @@ static int page_referenced_file(struct p
{
unsigned int mapcount;
struct address_space *mapping = page->mapping;
- pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+ pgoff_t pgoff;
struct vm_area_struct *vma;
struct prio_tree_iter iter;
int referenced = 0;
@@ -368,6 +380,9 @@ static int page_referenced_file(struct p
*/
BUG_ON(!PageLocked(page));
+ /* Safe to use mapping */
+ pgoff = page->index << mapping_order(mapping);
+
spin_lock(&mapping->i_mmap_lock);
/*
@@ -468,7 +483,7 @@ out:
static int page_mkclean_file(struct address_space *mapping, struct page *page)
{
- pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+ pgoff_t pgoff = page->index << mapping_order(mapping);
struct vm_area_struct *vma;
struct prio_tree_iter iter;
int ret = 0;
@@ -898,7 +913,7 @@ static int try_to_unmap_anon(struct page
static int try_to_unmap_file(struct page *page, int migration)
{
struct address_space *mapping = page->mapping;
- pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+ pgoff_t pgoff = page->index << mapping_order(mapping);
struct vm_area_struct *vma;
struct prio_tree_iter iter;
int ret = SWAP_AGAIN;
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
git-unionfs.patch
git-slub.patch
hugetlb-fix-pool-shrinking-while-in-restricted-cpuset.patch
x86-cast-cmpxchg-and-cmpxchg_local-result-for-386-and-486.patch
ntfs-fix-nommu-build.patch
slub-fix-possible-null-pointer-dereference.patch
slub-fix-possible-null-pointer-dereference-fix.patch
remove-set_migrateflags.patch
mm-use-zonelists-instead-of-zones-when-direct-reclaiming-pages.patch
mm-introduce-node_zonelist-for-accessing-the-zonelist-for-a-gfp-mask.patch
mm-remember-what-the-preferred-zone-is-for-zone_statistics.patch
mm-use-two-zonelist-that-are-filtered-by-gfp-mask.patch
mm-have-zonelist-contains-structs-with-both-a-zone-pointer-and-zone_idx.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask.patch
use-page_cache_xxx-in-mm-rmapc.patch
use-page_cache_xxx-in-mm-filemap_xipc.patch
use-page_cache_xxx-in-mm-migratec.patch
use-page_cache_xxx-in-fs-libfsc.patch
use-page_cache_xxx-in-fs-sync.patch
use-page_cache_xxx-in-fs-bufferc.patch
use-page_cache_xxx-in-mm-mpagec.patch
use-page_cache_xxx-in-mm-fadvisec.patch
mm-move-cache_line_size-to-linux-cacheh.patch
use-page_cache_xxx-in-ext2.patch
use-page_cache_xxx-in-ext2-fix.patch
use-page_cache_xxx-in-ext2-fix-2.patch
use-page_cache_xxx-in-fs-ext3.patch
use-page_cache_xxx-in-fs-reiserfs.patch
use-page_cache_xxx-in-fs-ext4.patch
reiser4.patch
reiser4-portion-of-zero_user-cleanup-patch.patch
page-owner-tracking-leak-detector.patch
--
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