Roman Pen cf725ce274 mm/vmalloc: occupy newly allocated vmap block just after allocation ... Previous implementation allocates new vmap block and repeats search of a free block from the very beginning, iterating over the CPU free list. Why it can be better?? 1. Allocation can happen on one CPU, but search can be done on another CPU. In worst case we preallocate amount of vmap blocks which is equal to CPU number on the system. 2. In previous patch I added newly allocated block to the tail of free list to avoid soon exhaustion of virtual space and give a chance to occupy blocks which were allocated long time ago. Thus to find newly allocated block all the search sequence should be repeated, seems it is not efficient. In this patch newly allocated block is occupied right away, address of virtual space is returned to the caller, so there is no any need to repeat the search sequence, allocation job is done. Signed-off-by: Roman Pen <r.peniaev@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Dumazet <edumazet@google.com> Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: David Rientjes <rientjes@google.com> Cc: WANG Chao <chaowang@redhat.com> Cc: Fabian Frederick <fabf@skynet.be> Cc: Christoph Lameter <cl@linux.com> Cc: Gioh Kim <gioh.kim@lge.com> Cc: Rob Jones <rob.jones@codethink.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-04-15 16:35:18 -07:00
..
kasan	kasan, module, vmalloc: rework shadow allocation for modules	2015-03-12 18:46:08 -07:00
backing-dev.c	Merge branch 'lazytime' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-02-17 16:12:34 -08:00
balloon_compaction.c	mm/balloon_compaction: fix deflation when compaction is disabled	2014-10-29 16:33:15 -07:00
bootmem.c	mem-hotplug: reset node managed pages when hot-adding a new pgdat	2014-11-13 16:17:06 -08:00
cleancache.c	cleancache: remove limit on the number of cleancache enabled filesystems	2015-04-14 16:49:03 -07:00
cma.c	mm: cma: constify and use correct signness in mm/cma.c	2015-04-14 16:49:04 -07:00
cma.h	mm: cma: allocation trigger	2015-04-14 16:49:00 -07:00
cma_debug.c	mm-cma-allocation-trigger-fix	2015-04-14 16:49:00 -07:00
compaction.c	mm/compaction: reset compaction scanner positions	2015-04-15 16:35:17 -07:00
debug-pagealloc.c	mm/debug-pagealloc: make debug-pagealloc boottime configurable	2014-12-13 12:42:48 -08:00
debug.c	mm: account pmd page tables to the process	2015-02-11 17:06:04 -08:00
dmapool.c	mm/dmapool.c: fixed a brace coding style issue	2014-10-09 22:26:00 -04:00
early_ioremap.c	mm: create generic early_ioremap() support	2014-04-07 16:36:15 -07:00
fadvise.c	vfs: remove get_xip_mem	2015-02-16 17:56:03 -08:00
failslab.c
filemap.c	Merge branch 'akpm' (patches from Andrew)	2015-04-14 16:49:17 -07:00
frontswap.c	mm/frontswap.c: fix the condition in BUG_ON	2014-12-10 17:41:08 -08:00
gup.c	mm: move mm_populate()-related code to mm/gup.c	2015-04-14 16:49:00 -07:00
highmem.c	mm/highmem: make kmap cache coloring aware	2014-08-06 18:01:22 -07:00
huge_memory.c	mm, memcg: sync allocation and memcg charge gfp flags for THP	2015-04-15 16:35:17 -07:00
hugetlb.c	hugetlbfs: accept subpool min_size mount option and setup accordingly	2015-04-15 16:35:18 -07:00
hugetlb_cgroup.c	mm: page_counter: pull "-1" handling out of page_counter_memparse()	2015-02-11 17:06:02 -08:00
hwpoison-inject.c	mm/hwpoison-inject.c: remove unnecessary null test before debugfs_remove_recursive	2014-08-06 18:01:19 -07:00
init-mm.c
internal.h	mm/compaction: enhance compaction finish condition	2015-04-14 16:49:01 -07:00
interval_tree.c	mm: replace vma->sharead.linear with vma->shared	2015-02-10 14:30:31 -08:00
Kconfig	mm: cma: debugfs interface	2015-04-14 16:49:00 -07:00
Kconfig.debug	mm/debug_pagealloc: remove obsolete Kconfig options	2015-01-08 15:10:52 -08:00
kmemcheck.c	mm/slab_common: move kmem_cache definition to internal header	2014-10-09 22:25:50 -04:00
kmemleak-test.c	mm/kmemleak-test.c: use pr_fmt for logging	2014-06-06 16:08:18 -07:00
kmemleak.c	kmemleak: disable kasan instrumentation for kmemleak	2015-02-13 21:21:41 -08:00
ksm.c	mm: remove rest usage of VM_NONLINEAR and pte_file()	2015-02-10 14:30:31 -08:00
list_lru.c	memcg: reparent list_lrus and free kmemcg_id on css offline	2015-02-12 18:54:10 -08:00
maccess.c
madvise.c	vfs: remove get_xip_mem	2015-02-16 17:56:03 -08:00
Makefile	mm: move memtest under mm	2015-04-14 16:49:06 -07:00
memblock.c	mm/memblock.c: rename local variable of memblock_type to `type'	2015-04-14 16:49:00 -07:00
memcontrol.c	memcg: remove obsolete comment	2015-04-15 16:35:16 -07:00
memory-failure.c	mm/memory-failure.c: define page types for action_result() in one place	2015-04-15 16:35:16 -07:00
memory.c	mm: refactor do_wp_page handling of shared vma into a function	2015-04-14 16:49:03 -07:00
memory_hotplug.c	mm, hotplug: fix concurrent memory hot-add deadlock	2015-04-14 16:49:00 -07:00
mempolicy.c	mm, thp: really limit transparent hugepage allocation to local node	2015-04-14 16:49:03 -07:00
mempool.c	mm, mempool: do not allow atomic resizing	2015-04-14 16:49:06 -07:00
memtest.c	memtest: use phys_addr_t for physical addresses	2015-04-14 16:49:06 -07:00
migrate.c	mm/migrate: check-before-clear PageSwapCache	2015-04-15 16:35:17 -07:00
mincore.c	mincore: apply page table walker on do_mincore()	2015-02-11 17:06:06 -08:00
mlock.c	mm: move mm_populate()-related code to mm/gup.c	2015-04-14 16:49:00 -07:00
mm_init.c	mm/mm_init.c: mark mminit_loglevel __meminitdata	2015-02-12 18:54:11 -08:00
mmap.c	mm: rename __mlock_vma_pages_range() to populate_vma_page_range()	2015-04-14 16:49:00 -07:00
mmu_context.c
mmu_notifier.c	mmu_notifier: add the callback for mmu_notifier_invalidate_range()	2014-11-13 13:46:09 +11:00
mmzone.c	mm: microoptimize zonelist operations	2015-02-11 17:06:02 -08:00
mprotect.c	mm: numa: preserve PTE write permissions across a NUMA hinting fault	2015-03-25 16:20:31 -07:00
mremap.c	fix mremap() vs. ioctx_kill() race	2015-04-06 17:50:59 -04:00
msync.c	mm: remove rest usage of VM_NONLINEAR and pte_file()	2015-02-10 14:30:31 -08:00
nobootmem.c	mem-hotplug: reset node managed pages when hot-adding a new pgdat	2014-11-13 16:17:06 -08:00
nommu.c	mm/nommu.c: export symbol max_mapnr	2015-03-12 18:46:08 -07:00
oom_kill.c	mm/oom_kill.c: fix typo in comment	2015-04-15 16:35:16 -07:00
page-writeback.c	mm/page-writeback: check-before-clear PageReclaim	2015-04-15 16:35:17 -07:00
page_alloc.c	mm/page_alloc.c: clean up comment	2015-04-14 16:49:04 -07:00
page_counter.c	mm: page_counter: pull "-1" handling out of page_counter_memparse()	2015-02-11 17:06:02 -08:00
page_ext.c	mm/page_owner: keep track of page owners	2014-12-13 12:42:48 -08:00
page_io.c	fs: move struct kiocb to fs.h	2015-03-25 20:28:11 -04:00
page_isolation.c	mm/page_alloc.c: call kernel_map_pages in unset_migrateype_isolate	2015-03-25 16:20:30 -07:00
page_owner.c	mm/page_owner.c: remove unnecessary stack_trace field	2015-02-11 17:06:07 -08:00
pagewalk.c	mm/pagewalk.c: prevent positive return value of walk_page_test() from being passed to callers	2015-03-25 16:20:30 -07:00
percpu-km.c	percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated	2014-09-02 14:46:05 -04:00
percpu-vm.c	percpu: move region iterations out of pcpu_[de]populate_chunk()	2014-09-02 14:46:02 -04:00
percpu.c	percpu: Fix trivial typos in comments	2015-03-24 13:41:54 -04:00
pgtable-generic.c	mm: convert p[te|md]_mknonnuma and remaining page table manipulations	2015-02-12 18:54:08 -08:00
process_vm_access.c	process_vm_access: switch to {compat_,}import_iovec()	2015-04-11 22:27:12 -04:00
quicklist.c
readahead.c	fs: export inode_to_bdi and use it in favor of mapping->backing_dev_info	2015-01-20 14:03:04 -07:00
rmap.c	mm: fix anon_vma->degree underflow in anon_vma endless growing prevention	2015-03-25 16:20:30 -07:00
shmem.c	Merge branch 'iocb' into for-next	2015-04-11 22:24:41 -04:00
slab.c	mm: remove GFP_THISNODE	2015-04-14 16:49:03 -07:00
slab.h	slub: make dead caches discard free slabs immediately	2015-02-12 18:54:10 -08:00
slab_common.c	mm: slub: add kernel address sanitizer support for slub allocator	2015-02-13 21:21:41 -08:00
slob.c	slob: make slob_alloc_node() static and remove EXPORT_SYMBOL()	2015-04-14 16:48:59 -07:00
slub.c	slub: use bool function return values of true/false not 1/0	2015-04-14 16:48:59 -07:00
sparse-vmemmap.c
sparse.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
swap.c	mm: rename deactivate_page to deactivate_file_page	2015-04-15 16:35:17 -07:00
swap_cgroup.c	mm: page_cgroup: rename file to mm/swap_cgroup.c	2014-12-10 17:41:09 -08:00
swap_state.c	fs: remove mapping->backing_dev_info	2015-01-20 14:03:05 -07:00
swapfile.c	mm: page_cgroup: rename file to mm/swap_cgroup.c	2014-12-10 17:41:09 -08:00
truncate.c	mm: rename deactivate_page to deactivate_file_page	2015-04-15 16:35:17 -07:00
util.c	mm/util: add kstrdup_const	2015-02-13 21:21:35 -08:00
vmacache.c	mm,vmacache: count number of system-wide flushes	2014-12-13 12:42:48 -08:00
vmalloc.c	mm/vmalloc: occupy newly allocated vmap block just after allocation	2015-04-15 16:35:18 -07:00
vmpressure.c	mm/vmpressure.c: fix race in vmpressure_work_fn()	2014-12-02 17:32:07 -08:00
vmscan.c	Merge branch 'akpm' (patches from Andrew)	2015-02-12 18:54:28 -08:00
vmstat.c	vmstat: Reduce time interval to stat update on idle cpu	2015-02-11 17:06:07 -08:00
workingset.c	list_lru: add helpers to isolate items	2015-02-12 18:54:10 -08:00
zbud.c	mm/zpool: add name argument to create zpool	2015-02-12 18:54:12 -08:00
zpool.c	mm/zpool: add name argument to create zpool	2015-02-12 18:54:12 -08:00
zsmalloc.c	mm/zsmalloc: add statistics support	2015-02-12 18:54:12 -08:00
zswap.c	mm/zpool: add name argument to create zpool	2015-02-12 18:54:12 -08:00