The patch titled
Add virt_to_head_page and consolidate code in slab and slub
has been added to the -mm tree. Its filename is
slub-add-virt_to_head_page-and-consolidate-code-in-slab-and-slub.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Add virt_to_head_page and consolidate code in slab and slub
From: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slub.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff -puN mm/slub.c~slub-add-virt_to_head_page-and-consolidate-code-in-slab-and-slub mm/slub.c
--- a/mm/slub.c~slub-add-virt_to_head_page-and-consolidate-code-in-slab-and-slub
+++ a/mm/slub.c
@@ -1323,9 +1323,7 @@ void kmem_cache_free(struct kmem_cache *
{
struct page * page;
- page = virt_to_page(x);
-
- page = compound_head(page);
+ page = virt_to_head_page(x);
if (unlikely(PageError(page) && (s->flags & SLAB_STORE_USER)))
set_tracking(s, x, TRACK_FREE);
@@ -1336,7 +1334,7 @@ EXPORT_SYMBOL(kmem_cache_free);
/* Figure out on which slab object the object resides */
static struct page *get_object_page(const void *x)
{
- struct page *page = compound_head(virt_to_page(x));
+ struct page *page = virt_to_head_page(x);
if (!PageSlab(page))
return NULL;
@@ -2076,7 +2074,7 @@ void kfree(const void *x)
if (!x)
return;
- page = compound_head(virt_to_page(x));
+ page = virt_to_head_page(x);
s = page->slab;
@@ -2112,7 +2110,7 @@ void *krealloc(const void *p, size_t new
return NULL;
}
- page = compound_head(virt_to_page(p));
+ page = virt_to_head_page(p);
new_cache = get_slab(new_size, flags);
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
slab-introduce-krealloc.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range.patch
safer-nr_node_ids-and-nr_node_ids-determination-and-initial.patch
use-zvc-counters-to-establish-exact-size-of-dirtyable-pages.patch
slab-ensure-cache_alloc_refill-terminates.patch
smaps-extract-pmd-walker-from-smaps-code.patch
smaps-add-pages-referenced-count-to-smaps.patch
smaps-add-clear_refs-file-to-clear-reference.patch
slab-use-num_possible_cpus-in-enable_cpucache.patch
i386-use-page-allocator-to-allocate-thread_info-structure.patch
make-page-private-usable-in-compound-pages-v1.patch
optimize-compound_head-by-avoiding-a-shared-page.patch
add-virt_to_head_page-and-consolidate-code-in-slab-and-slub.patch
quicklists-for-page-table-pages.patch
quicklist-support-for-sparc64.patch
slab-allocators-remove-obsolete-slab_must_hwcache_align.patch
kmem_cache-simplify-slab-cache-creation.patch
slab-allocators-remove-multiple-alignment-specifications.patch
fault-injection-fix-failslab-with-config_numa.patch
mm-fix-handling-of-panic_on_oom-when-cpusets-are-in-use.patch
slab-allocators-remove-slab_debug_initial-flag.patch
slab-allocators-remove-slab_ctor_atomic.patch
slab-allocators-remove-useless-__gfp_no_grow-flag.patch
page-migration-only-migrate-pages-if-allocation-in-the-highest-zone-is-possible.patch
slub-core.patch
slub-change-default-alignments.patch
slub-allocate-smallest-object-size-if-the-user-asks-for-0-bytes.patch
powerpc-disable-slub-for-configurations-in-which-slab-page-structs-are-modified.patch
slub-make-page-private-usable-in-compound-pages-v1.patch
slub-add-virt_to_head_page-and-consolidate-code-in-slab-and-slub.patch
slub-fix-object-tracking.patch
slub-enable-tracking-of-full-slabs.patch
slub-validation-of-slabs-metadata-and-guard-zones.patch
slub-add-min_partial.patch
slub-add-ability-to-list-alloc--free-callers-per-slab.patch
slub-free-slabs-and-sort-partial-slab-lists-in-kmem_cache_shrink.patch
slub-remove-object-activities-out-of-checking-functions.patch
slub-user-documentation.patch
slub-add-slabinfo-tool.patch
slub-slab-allocators-remove-obsolete-slab_must_hwcache_align.patch
slub-slab-allocators-remove-slab_debug_initial-flag.patch
slub-slab-allocators-remove-slab_ctor_atomic.patch
slub-slab-allocators-remove-useless-__gfp_no_grow-flag.patch
quicklist-support-for-ia64.patch
quicklist-support-for-x86_64.patch
slub-exploit-page-mobility-to-increase-allocation-order.patch
slub-mm-only-make-slub-the-default-slab-allocator.patch
slub-i386-support.patch
remove-constructor-from-buffer_head.patch
slab-shutdown-cache_reaper-when-cpu-goes-down.patch
mm-implement-swap-prefetching.patch
revoke-core-code-slab-allocators-remove-slab_debug_initial-flag-revoke.patch
vmstat-use-our-own-timer-events.patch
make-vm-statistics-update-interval-configurable.patch
make-vm-statistics-update-interval-configurable-fix.patch
readahead-state-based-method-aging-accounting.patch
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