The patch titled
Subject: mm, hugetlb: remove hugetlb_zero and hugetlb_infinity
has been added to the -mm tree. Its filename is
mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity.patch
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------------------------------------------------------
From: David Rientjes <rientjes@xxxxxxxxxx>
Subject: mm, hugetlb: remove hugetlb_zero and hugetlb_infinity
They are unnecessary: "zero" can be used in place of "hugetlb_zero" and
passing extra2 == NULL is equivalent to infinity.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Cc: Luiz Capitulino <lcapitulino@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/hugetlb.h | 1 -
kernel/sysctl.c | 9 +++------
mm/hugetlb.c | 1 -
3 files changed, 3 insertions(+), 8 deletions(-)
diff -puN include/linux/hugetlb.h~mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity include/linux/hugetlb.h
--- a/include/linux/hugetlb.h~mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity
+++ a/include/linux/hugetlb.h
@@ -84,7 +84,6 @@ pte_t *huge_pmd_share(struct mm_struct *
#endif
extern unsigned long hugepages_treat_as_movable;
-extern const unsigned long hugetlb_zero, hugetlb_infinity;
extern int sysctl_hugetlb_shm_group;
extern struct list_head huge_boot_pages;
diff -puN kernel/sysctl.c~mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity kernel/sysctl.c
--- a/kernel/sysctl.c~mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity
+++ a/kernel/sysctl.c
@@ -1240,8 +1240,7 @@ static struct ctl_table vm_table[] = {
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = hugetlb_sysctl_handler,
- .extra1 = (void *)&hugetlb_zero,
- .extra2 = (void *)&hugetlb_infinity,
+ .extra1 = &zero,
},
#ifdef CONFIG_NUMA
{
@@ -1250,8 +1249,7 @@ static struct ctl_table vm_table[] = {
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = &hugetlb_mempolicy_sysctl_handler,
- .extra1 = (void *)&hugetlb_zero,
- .extra2 = (void *)&hugetlb_infinity,
+ .extra1 = &zero,
},
#endif
{
@@ -1274,8 +1272,7 @@ static struct ctl_table vm_table[] = {
.maxlen = sizeof(unsigned long),
.mode = 0644,
.proc_handler = hugetlb_overcommit_handler,
- .extra1 = (void *)&hugetlb_zero,
- .extra2 = (void *)&hugetlb_infinity,
+ .extra1 = &zero,
},
#endif
{
diff -puN mm/hugetlb.c~mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity mm/hugetlb.c
--- a/mm/hugetlb.c~mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity
+++ a/mm/hugetlb.c
@@ -36,7 +36,6 @@
#include <linux/node.h>
#include "internal.h"
-const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
unsigned long hugepages_treat_as_movable;
int hugetlb_max_hstate __read_mostly;
_
Patches currently in -mm which might be from rientjes@xxxxxxxxxx are
mm-page_alloc-fix-cma-area-initialisation-when-pageblock-max_order.patch
slub-fix-off-by-one-in-number-of-slab-tests.patch
proc-stat-convert-to-single_open_size.patch
fs-seq_file-fallback-to-vmalloc-allocation.patch
x86-numa-setup_node_data-drop-dead-code-and-rename-function.patch
x86-numa-setup_node_data-drop-dead-code-and-rename-function-checkpatch-fixes.patch
mm-slabc-add-__init-to-init_lock_keys.patch
slab-common-add-functions-for-kmem_cache_node-access.patch
slab-common-add-functions-for-kmem_cache_node-access-fix.patch
slub-use-new-node-functions.patch
slub-use-new-node-functions-fix.patch
slab-use-get_node-and-kmem_cache_node-functions.patch
slab-use-get_node-and-kmem_cache_node-functions-fix.patch
slab-use-get_node-and-kmem_cache_node-functions-fix-2.patch
mm-slabh-wrap-the-whole-file-with-guarding-macro.patch
mm-slub-mark-resiliency_test-as-init-text.patch
mm-slub-slub_debug=n-use-the-same-alloc-free-hooks-as-for-slub_debug=y.patch
memcg-cleanup-memcg_cache_params-refcnt-usage.patch
memcg-destroy-kmem-caches-when-last-slab-is-freed.patch
memcg-mark-caches-that-belong-to-offline-memcgs-as-dead.patch
slub-dont-fail-kmem_cache_shrink-if-slab-placement-optimization-fails.patch
slub-make-slab_free-non-preemptable.patch
memcg-wait-for-kfrees-to-finish-before-destroying-cache.patch
slub-make-dead-memcg-caches-discard-free-slabs-immediately.patch
slub-kmem_cache_shrink-check-if-partial-list-is-empty-under-list_lock.patch
slab-do-not-keep-free-objects-slabs-on-dead-memcg-caches.patch
slab-set-free_limit-for-dead-caches-to-0.patch
slab-add-unlikely-macro-to-help-compiler.patch
slab-move-up-code-to-get-kmem_cache_node-in-free_block.patch
slab-defer-slab_destroy-in-free_block.patch
slab-factor-out-initialization-of-arracy-cache.patch
slab-introduce-alien_cache.patch
slab-use-the-lock-on-alien_cache-instead-of-the-lock-on-array_cache.patch
slab-destroy-a-slab-without-holding-any-alien-cache-lock.patch
slab-remove-a-useless-lockdep-annotation.patch
slab-remove-bad_alien_magic.patch
slub-reduce-duplicate-creation-on-the-first-object.patch
mm-readaheadc-remove-unused-file_ra_state-from-count_history_pages.patch
mm-memory_hotplugc-add-__meminit-to-grow_zone_span-grow_pgdat_span.patch
mm-page_allocc-unexport-alloc_pages_exact_nid.patch
mm-page_alloc-simplify-drain_zone_pages-by-using-min.patch
mm-mem-hotplug-replace-simple_strtoull-with-kstrtoull.patch
mm-vmallocc-add-a-schedule-point-to-vmalloc.patch
mm-vmallocc-add-a-schedule-point-to-vmalloc-fix.patch
mm-vmalloc-constify-allocation-mask.patch
mmhugetlb-make-unmap_ref_private-return-void.patch
mmhugetlb-simplify-error-handling-in-hugetlb_cow.patch
mm-hugetlb-generalize-writes-to-nr_hugepages.patch
mm-hugetlb-remove-hugetlb_zero-and-hugetlb_infinity.patch
include-kernelh-rewrite-min3-max3-and-clamp-using-min-and-max.patch
mm-utilc-add-kstrimdup.patch
lib-add-size-unit-t-p-e-to-memparse.patch
fs-proc-kcorec-use-page_align-instead-of-alignpage_size.patch
fork-exec-cleanup-mm-initialization.patch
fork-reset-mm-pinned_vm.patch
fork-copy-mms-vm-usage-counters-under-mmap_sem.patch
linux-next.patch
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