The patch titled
Slab allocators: remove useless __GFP_NO_GROW flag
has been added to the -mm tree. Its filename is
slab-allocators-remove-useless-__gfp_no_grow-flag.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: Slab allocators: remove useless __GFP_NO_GROW flag
From: Christoph Lameter <clameter@xxxxxxx>
There is no user remaining and I have never seen any use of that flag.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/gfp.h | 3 +--
mm/slab.c | 6 ++----
mm/slub.c | 3 ---
3 files changed, 3 insertions(+), 9 deletions(-)
diff -puN include/linux/gfp.h~slab-allocators-remove-useless-__gfp_no_grow-flag include/linux/gfp.h
--- a/include/linux/gfp.h~slab-allocators-remove-useless-__gfp_no_grow-flag
+++ a/include/linux/gfp.h
@@ -43,7 +43,6 @@ struct vm_area_struct;
#define __GFP_REPEAT ((__force gfp_t)0x400u) /* Retry the allocation. Might fail */
#define __GFP_NOFAIL ((__force gfp_t)0x800u) /* Retry for ever. Cannot fail */
#define __GFP_NORETRY ((__force gfp_t)0x1000u)/* Do not retry. Might fail */
-#define __GFP_NO_GROW ((__force gfp_t)0x2000u)/* Slab internal usage */
#define __GFP_COMP ((__force gfp_t)0x4000u)/* Add compound page metadata */
#define __GFP_ZERO ((__force gfp_t)0x8000u)/* Return zeroed page on success */
#define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */
@@ -58,7 +57,7 @@ struct vm_area_struct;
/* if you forget to add the bitmask here kernel will crash, period */
#define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \
__GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \
- __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \
+ __GFP_NOFAIL|__GFP_NORETRY|__GFP_COMP| \
__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE| \
__GFP_RECLAIMABLE|__GFP_MOVABLE)
diff -puN mm/slab.c~slab-allocators-remove-useless-__gfp_no_grow-flag mm/slab.c
--- a/mm/slab.c~slab-allocators-remove-useless-__gfp_no_grow-flag
+++ a/mm/slab.c
@@ -2746,9 +2746,7 @@ static int cache_grow(struct kmem_cache
* Be lazy and only check for valid flags here, keeping it out of the
* critical path in kmem_cache_alloc().
*/
- BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK | __GFP_NO_GROW));
- if (flags & __GFP_NO_GROW)
- return 0;
+ BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK));
ctor_flags = SLAB_CTOR_CONSTRUCTOR;
local_flags = (flags & GFP_LEVEL_MASK);
@@ -3252,7 +3250,7 @@ retry:
flags | GFP_THISNODE, nid);
}
- if (!obj && !(flags & __GFP_NO_GROW)) {
+ if (!obj) {
/*
* This allocation will be performed within the constraints
* of the current cpuset / memory policy requirements.
diff -puN mm/slub.c~slab-allocators-remove-useless-__gfp_no_grow-flag mm/slub.c
--- a/mm/slub.c~slab-allocators-remove-useless-__gfp_no_grow-flag
+++ a/mm/slub.c
@@ -822,9 +822,6 @@ static struct page *new_slab(struct kmem
void *last;
void *p;
- if (flags & __GFP_NO_GROW)
- return NULL;
-
BUG_ON(flags & ~(GFP_DMA | GFP_LEVEL_MASK));
if (flags & __GFP_WAIT)
_
Patches currently in -mm which might be from clameter@xxxxxxx are
extend-print_symbol-capability.patch
slab-introduce-krealloc.patch
ia64-sn-xpc-convert-to-use-kthread-api-fix.patch
ia64-sn-xpc-convert-to-use-kthread-api-fix-2.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range.patch
add-apply_to_page_range-which-applies-a-function-to-a-pte-range-fix.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
slub-core.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
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
quicklists-for-page-table-pages.patch
quicklist-support-for-ia64.patch
quicklist-support-for-x86_64.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
slub-exploit-page-mobility-to-increase-allocation-order.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
slub-mm-only-make-slub-the-default-slab-allocator.patch
slub-i386-support.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
readahead-state-based-method-aging-accounting.patch
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