The patch titled
memcg: use vmalloc for mem_cgroup allocation
has been removed from the -mm tree. Its filename was
use-vmalloc-for-mem_cgroup-allocation-v2.patch
This patch was dropped because an updated version will be merged
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: memcg: use vmalloc for mem_cgroup allocation
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
On ia64, this kmalloc() requires order-4 pages. But this need not be
physically contiguous. (and x86-32, which has a small vmalloc area, a has
small mem_cgroup struct.)
For here, vmalloc is better.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff -puN mm/memcontrol.c~use-vmalloc-for-mem_cgroup-allocation-v2 mm/memcontrol.c
--- a/mm/memcontrol.c~use-vmalloc-for-mem_cgroup-allocation-v2
+++ a/mm/memcontrol.c
@@ -31,6 +31,7 @@
#include <linux/spinlock.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
+#include <linux/vmalloc.h>
#include <asm/uaccess.h>
@@ -993,7 +994,8 @@ mem_cgroup_create(struct cgroup_subsys *
mem = &init_mem_cgroup;
page_cgroup_cache = KMEM_CACHE(page_cgroup, SLAB_PANIC);
} else {
- mem = kzalloc(sizeof(struct mem_cgroup), GFP_KERNEL);
+ mem = vmalloc(sizeof(struct mem_cgroup));
+ memset(mem, 0, sizeof(*mem));
}
if (mem == NULL)
@@ -1012,7 +1014,7 @@ free_out:
for_each_node_state(node, N_POSSIBLE)
free_mem_cgroup_per_zone_info(mem, node);
if (cont->parent != NULL)
- kfree(mem);
+ vfree(mem);
return ERR_PTR(-ENOMEM);
}
@@ -1032,7 +1034,7 @@ static void mem_cgroup_destroy(struct cg
for_each_node_state(node, N_POSSIBLE)
free_mem_cgroup_per_zone_info(mem, node);
- kfree(mem_cgroup_from_cont(cont));
+ vfree(mem_cgroup_from_cont(cont));
}
static int mem_cgroup_populate(struct cgroup_subsys *ss,
_
Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are
memcg-fix-oops-in-oom-handling.patch
git-x86.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-have-zonelist-contains-structs-with-both-a-zone-pointer-and-zone_idx-fix-memcg-ooms.patch
mm-have-zonelist-contains-structs-with-both-a-zone-pointer-and-zone_idx-just-return-do_try_to_free_pages.patch
mm-have-zonelist-contains-structs-with-both-a-zone-pointer-and-zone_idx-just-return-do_try_to_free_pages-do_try_to_free_pages-gfp_mask-redundant.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask-doc-fixes.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask-make-dequeue_huge_page_vma-obey-mpol_bind-nodemask.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask-make-dequeue_huge_page_vma-obey-mpol_bind-nodemask-rework.patch
mm-filter-based-on-a-nodemask-as-well-as-a-gfp_mask-deporkify.patch
mm-fix-alloc_bootmem_core-to-use-fast-searching-for-all-nodes.patch
mm-offset-align-in-alloc_bootmem.patch
mm-make-reserve_bootmem-can-crossed-the-nodes.patch
mm-make-early_pfn_to_nid-a-c-function.patch
sparsemem-vmemmap-does-not-need-section-bits.patch
kbuild-create-a-way-to-create-preprocessor-constants-from-c-expressions.patch
pageflags-use-an-enum-for-the-flags.patch
pageflags-get-rid-of-flags_reserved.patch
pageflags-introduce-macros-to-generate-page-flag-functions.patch
pageflags-convert-to-the-use-of-new-macros.patch
pageflags-use-proper-page-flag-functions-in-xen.patch
pageflags-eliminate-pg_xxx-aliases.patch
memory-hotplug-add-removable-to-sysfs-to-show-memblock-removability.patch
cgroup-api-files-rename-read-write_uint-methods-to-read_write_u64.patch
cgroup-api-files-add-res_counter_read_u64.patch
cgroup-api-files-use-read_u64-in-memory-controller.patch
cgroup-api-files-strip-all-trailing-whitespace-in-cgroup_write_u64.patch
cgroup-api-files-update-cpusets-to-use-cgroup-structured-file-api.patch
cgroup-api-files-update-cpusets-to-use-cgroup-structured-file-api-fix.patch
cgroup-api-files-add-cgroup-map-data-type.patch
cgroup-api-files-use-cgroup-map-for-memcontrol-stats-file.patch
cgroup-api-files-drop-mem_cgroup_force_empty.patch
cgroup-api-files-move-releasable-to-cgroup_debug-subsystem.patch
cgroup-api-files-make-cgroup_debug-default-to-off.patch
cgroups-add-the-trigger-callback-to-struct-cftype.patch
cgroups-implement-device-whitelist-v6.patch
cgroups-implement-device-whitelist-v6-checkpatch-fixes.patch
cgroups-implement-device-whitelist-v6-cleanups.patch
cgroups-implement-device-whitelist-doc.patch
cgroups-implement-device-whitelist-v6-fix.patch
cgroups-use-a-hash-table-for-css_set-finding.patch
cgroups-simplify-init_subsys.patch
cgroups-remove-the-css_set-linked-list.patch
cgroups-introduce-cft-read_seq-v2.patch
cgroups-add-an-owner-to-the-mm_struct.patch
memcgroup-add-the-max_usage-member-on-the-res_counter.patch
add-a-document-describing-the-resource-counter-abstraction-v2.patch
add-a-document-describing-the-resource-counter-abstraction-v2-fix.patch
memcgroup-move-memory-controller-allocations-to-their-own-slabs.patch
memcgroup-use-triggers-in-force_empty-and-max_usage-files.patch
memcgroup-implement-failcounter-reset.patch
memcgroup-implement-failcounter-reset-checkpatch-fixes.patch
memcg-remove-redundant-function-calls.patch
memcgroup-make-the-memory-controller-more-desktop-responsive.patch
use-vmalloc-for-mem_cgroup-allocation-v3.patch
use-vmalloc-for-mem_cgroup-allocation-v2.patch
use-vmalloc-for-mem_cgroup-allocation-v2-fix.patch
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