Joonsoo Kim d4033afdf8 mm, vmalloc: iterate vmap_area_list, instead of vmlist, in vmallocinfo() ... This patch is a preparatory step for removing vmlist entirely. For above purpose, we change iterating a vmap_list codes to iterating a vmap_area_list. It is somewhat trivial change, but just one thing should be noticed. Using vmap_area_list in vmallocinfo() introduce ordering problem in SMP system. In s_show(), we retrieve some values from vm_struct. vm_struct's values is not fully setup when va->vm is assigned. Full setup is notified by removing VM_UNLIST flag without holding a lock. When we see that VM_UNLIST is removed, it is not ensured that vm_struct has proper values in view of other CPUs. So we need smp_[rw]mb for ensuring that proper values is assigned when we see that VM_UNLIST is removed. Therefore, this patch not only change a iteration list, but also add a appropriate smp_[rw]mb to right places. Signed-off-by: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Dave Anderson <anderson@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Ingo Molnar <mingo@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-04-29 15:54:34 -07:00
..
backing-dev.c	bdi: allow block devices to say that they require stable page writes	2013-02-21 17:22:19 -08:00
balloon_compaction.c	mm: introduce a common interface for balloon pages mobility	2012-12-11 17:22:26 -08:00
bootmem.c	mm: Add alloc_bootmem_low_pages_nopanic()	2013-01-29 19:32:59 -08:00
bounce.c	mm: make snapshotting pages for stable writes a per-bio operation	2013-04-29 15:54:33 -07:00
cleancache.c	fs: encode_fh: return FILEID_INVALID if invalid fid_type	2013-02-26 02:46:10 -05:00
compaction.c	mm: add & use zone_end_pfn() and zone_spans_pfn()	2013-02-23 17:50:20 -08:00
debug-pagealloc.c
dmapool.c	dmapool: make DMAPOOL_DEBUG detect corruption of free marker	2012-12-11 17:22:24 -08:00
fadvise.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
failslab.c
filemap.c	mm: trace filemap add and del	2013-04-29 15:54:28 -07:00
filemap_xip.c	mm: move all mmu notifier invocations to be done outside the PT lock	2012-10-09 16:22:58 +09:00
fremap.c	Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"	2013-03-28 17:45:51 -07:00
frontswap.c	frontswap: support exclusive gets if tmem backend is capable	2012-09-21 10:38:12 -04:00
highmem.c	Some nice cleanups, and even a patch my wife did as a "live" demo for	2012-12-20 08:37:05 -08:00
huge_memory.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
hugetlb.c	mm/hugetlb: add more arch-defined huge_pte functions	2013-04-29 15:54:33 -07:00
hugetlb_cgroup.c	mm/hugetlb: create hugetlb cgroup file in hugetlb_init	2012-12-18 15:02:15 -08:00
hwpoison-inject.c	memcg: rename config variables	2012-07-31 18:42:43 -07:00
init-mm.c
internal.h	mm: accelerate munlock() treatment of THP pages	2013-02-27 19:10:09 -08:00
interval_tree.c	mm: add CONFIG_DEBUG_VM_RB build option	2012-10-09 16:22:42 +09:00
Kconfig	Select VIRT_TO_BUS directly where needed	2013-03-12 11:16:40 -07:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
ksm.c	ksm: fix m68k build: only NUMA needs pfn_to_nid	2013-03-08 15:05:34 -08:00
maccess.c
madvise.c	mm: make madvise(MADV_WILLNEED) support swap file prefetch	2013-02-23 17:50:10 -08:00
Makefile	mm: introduce a common interface for balloon pages mobility	2012-12-11 17:22:26 -08:00
memblock.c	memblock: add assertion for zero allocation alignment	2013-04-29 15:54:28 -07:00
memcontrol.c	memcg: further simplify mem_cgroup_iter	2013-04-29 15:54:33 -07:00
memory-failure.c	HWPOISON: check dirty flag to match against clean page	2013-04-29 15:54:28 -07:00
memory.c	vm: add vm_iomap_memory() helper function	2013-04-16 16:45:45 -07:00
memory_hotplug.c	mm: walk_memory_range(): fix typo in comment	2013-04-29 15:54:28 -07:00
mempolicy.c	mm/mempolicy.c: fix sp_node_init() argument ordering	2013-03-08 15:05:34 -08:00
mempool.c	mempool: add @gfp_mask to mempool_create_node()	2012-06-25 11:53:47 +02:00
migrate.c	mm: remove offlining arg to migrate_pages	2013-02-23 17:50:19 -08:00
mincore.c	swap: make each swap partition have one address_space	2013-02-23 17:50:17 -08:00
mlock.c	Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"	2013-03-28 17:45:51 -07:00
mm_init.c	mm: init: report on last-nid information stored in page->flags	2013-02-23 17:50:18 -08:00
mmap.c	mm: prevent mmap_cache race in find_vma()	2013-04-04 11:46:28 -07:00
mmu_context.c	mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()	2012-03-21 17:54:59 -07:00
mmu_notifier.c	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
mmzone.c	mm: rename page struct field helpers	2013-02-23 17:50:18 -08:00
mprotect.c	mm/mprotect.c: coding-style cleanups	2012-12-18 15:02:15 -08:00
mremap.c	mm/rmap: rename anon_vma_unlock() => anon_vma_unlock_write()	2013-02-23 17:50:17 -08:00
msync.c
nobootmem.c	mm: Add alloc_bootmem_low_pages_nopanic()	2013-01-29 19:32:59 -08:00
nommu.c	vm: add no-mmu vm_iomap_memory() stub	2013-04-27 13:25:38 -07:00
oom_kill.c	memcg, oom: provide more precise dump info while memcg oom happening	2013-02-23 17:50:08 -08:00
page-writeback.c	mm: make snapshotting pages for stable writes a per-bio operation	2013-04-29 15:54:33 -07:00
page_alloc.c	mm: introduce free_highmem_page() helper to free highmem pages into buddy system	2013-04-29 15:54:31 -07:00
page_cgroup.c	memcontrol: use N_MEMORY instead N_HIGH_MEMORY	2012-12-12 17:38:32 -08:00
page_io.c	mm: add support for direct_IO to highmem pages	2012-07-31 18:42:47 -07:00
page_isolation.c	mm: fix zone_watermark_ok_safe() accounting of isolated pages	2013-01-04 16:11:46 -08:00
pagewalk.c	thp: change split_huge_page_pmd() interface	2012-12-12 17:38:31 -08:00
percpu-km.c
percpu-vm.c	mm: fix kernel-doc warnings	2012-06-20 14:39:36 -07:00
percpu.c	mm, percpu: Make sure percpu_alloc early parameter has an argument	2012-12-02 06:23:04 -08:00
pgtable-generic.c	mm: Only flush the TLB when clearing an accessible pte	2012-12-11 14:28:34 +00:00
process_vm_access.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-12 11:05:45 -07:00
quicklist.c
readahead.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
rmap.c	rmap: recompute pgoff for unmapping huge page	2013-04-29 15:54:28 -07:00
shmem.c	mm/shmem.c: remove an ifdef	2013-04-29 15:54:28 -07:00
slab.c	taint: add explicit flag to show whether lock dep is still OK.	2013-01-21 17:17:57 +10:30
slab.h	slab: propagate tunable values	2012-12-18 15:02:14 -08:00
slab_common.c	slab: propagate tunable values	2012-12-18 15:02:14 -08:00
slob.c	mm: rename page struct field helpers	2013-02-23 17:50:18 -08:00
slub.c	The sweeping change is to make add_taint() explicitly indicate whether to disable	2013-02-25 15:41:43 -08:00
sparse-vmemmap.c
sparse.c	memory-failure: use num_poisoned_pages instead of mce_bad_pages	2013-02-23 17:50:15 -08:00
swap.c	swap: make each swap partition have one address_space	2013-02-23 17:50:17 -08:00
swap_state.c	swap: add per-partition lock for swapfile	2013-02-23 17:50:17 -08:00
swapfile.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-02-26 20:16:07 -08:00
truncate.c	mm: drop vmtruncate	2012-12-20 18:46:29 -05:00
util.c	swap: make each swap partition have one address_space	2013-02-23 17:50:17 -08:00
vmalloc.c	mm, vmalloc: iterate vmap_area_list, instead of vmlist, in vmallocinfo()	2013-04-29 15:54:34 -07:00
vmscan.c	mm/vmscan.c: minor cleanup for kswapd	2013-04-29 15:54:29 -07:00
vmstat.c	mm: add & use zone_end_pfn() and zone_spans_pfn()	2013-02-23 17:50:20 -08:00