The patch titled
slob: fix page order calculation on not 4KB page
has been added to the -mm tree. Its filename is
slob-fix-page-order-calculation-on-not-4kb-page.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: slob: fix page order calculation on not 4KB page
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
SLOB doesn't calculate correct page order when page size is not 4KB. This
patch fixes it with using get_order() instead of find_order() which is SLOB
version of get_order().
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Acked-by: Matt Mackall <mpm@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slob.c | 15 +++------------
1 files changed, 3 insertions(+), 12 deletions(-)
diff -puN mm/slob.c~slob-fix-page-order-calculation-on-not-4kb-page mm/slob.c
--- a/mm/slob.c~slob-fix-page-order-calculation-on-not-4kb-page
+++ a/mm/slob.c
@@ -150,15 +150,6 @@ static void slob_free(void *block, int s
spin_unlock_irqrestore(&slob_lock, flags);
}
-static int FASTCALL(find_order(int size));
-static int fastcall find_order(int size)
-{
- int order = 0;
- for ( ; size > 4096 ; size >>=1)
- order++;
- return order;
-}
-
void *__kmalloc(size_t size, gfp_t gfp)
{
slob_t *m;
@@ -174,7 +165,7 @@ void *__kmalloc(size_t size, gfp_t gfp)
if (!bb)
return 0;
- bb->order = find_order(size);
+ bb->order = get_order(size);
bb->pages = (void *)__get_free_pages(gfp, bb->order);
if (bb->pages) {
@@ -318,7 +309,7 @@ void *kmem_cache_alloc(struct kmem_cache
if (c->size < PAGE_SIZE)
b = slob_alloc(c->size, flags, c->align);
else
- b = (void *)__get_free_pages(flags, find_order(c->size));
+ b = (void *)__get_free_pages(flags, get_order(c->size));
if (c->ctor)
c->ctor(b, c, SLAB_CTOR_CONSTRUCTOR);
@@ -345,7 +336,7 @@ void kmem_cache_free(struct kmem_cache *
if (c->size < PAGE_SIZE)
slob_free(b, c->size);
else
- free_pages((unsigned long)b, find_order(c->size));
+ free_pages((unsigned long)b, get_order(c->size));
}
EXPORT_SYMBOL(kmem_cache_free);
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
origin.patch
git-alsa.patch
git-dvb.patch
auth_gss-unregister-gss_domain-when-unloading-module.patch
fault-injection-disable-stacktrace-filter-for-x86-64.patch
fault-injection-enable-stacktrace-with-dwarf2-unwinder.patch
slob-handle-slab_panic-flag.patch
use-slab_panic-flag-cleanup.patch
fault-injection-fix-failslab-with-config_numa.patch
hugetlbfs-add-null-check-in-hugetlb_zero_setup.patch
slob-fix-page-order-calculation-on-not-4kb-page.patch
simplify-the-stacktrace-code.patch
dtlk-fix-error-checks-in-module_init.patch
sunrpc-fix-error-path-in-module_init.patch
-
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