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KAMEZAWA Hiroyuki e9959f0f37 mm/page_alloc.c: fix build_all_zonelist() where percpu_alloc() is wrongly called under stop_machine_run() 
During memory hotplug, build_allzonelists() may be called under
stop_machine_run().  In this function, setup_zone_pageset() is called.
But it's bug because it will do page allocation under stop_machine_run().

Here is a report from Alok Kataria.

  BUG: sleeping function called from invalid context at kernel/mutex.c:94
  in_atomic(): 0, irqs_disabled(): 1, pid: 4, name: migration/0
  Pid: 4, comm: migration/0 Not tainted 2.6.35.6-45.fc14.x86_64 #1
  Call Trace:
   [<ffffffff8103d12b>] __might_sleep+0xeb/0xf0
   [<ffffffff81468245>] mutex_lock+0x24/0x50
   [<ffffffff8110eaa6>] pcpu_alloc+0x6d/0x7ee
   [<ffffffff81048888>] ? load_balance+0xbe/0x60e
   [<ffffffff8103a1b3>] ? rt_se_boosted+0x21/0x2f
   [<ffffffff8103e1cf>] ? dequeue_rt_stack+0x18b/0x1ed
   [<ffffffff8110f237>] __alloc_percpu+0x10/0x12
   [<ffffffff81465e22>] setup_zone_pageset+0x38/0xbe
   [<ffffffff810d6d81>] ? build_zonelists_node.clone.58+0x79/0x8c
   [<ffffffff81452539>] __build_all_zonelists+0x419/0x46c
   [<ffffffff8108ef01>] ? cpu_stopper_thread+0xb2/0x198
   [<ffffffff8108f075>] stop_machine_cpu_stop+0x8e/0xc5
   [<ffffffff8108efe7>] ? stop_machine_cpu_stop+0x0/0xc5
   [<ffffffff8108ef57>] cpu_stopper_thread+0x108/0x198
   [<ffffffff81467a37>] ? schedule+0x5b2/0x5cc
   [<ffffffff8108ee4f>] ? cpu_stopper_thread+0x0/0x198
   [<ffffffff81065f29>] kthread+0x7f/0x87
   [<ffffffff8100aae4>] kernel_thread_helper+0x4/0x10
   [<ffffffff81065eaa>] ? kthread+0x0/0x87
   [<ffffffff8100aae0>] ? kernel_thread_helper+0x0/0x10
  Built 5 zonelists in Node order, mobility grouping on.  Total pages: 289456
  Policy zone: Normal

This patch tries to fix the issue by moving setup_zone_pageset() out from
stop_machine_run(). It's obviously not necessary to be called under
stop_machine_run().

[akpm@linux-foundation.org: remove unneeded local]
Reported-by: Alok Kataria <akataria@vmware.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Petr Vandrovec <petr@vmware.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-25 06:50:45 +09:00
..
backing-dev.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2010-10-26 17:58:44 -07:00
bootmem.c
x86, memblock: Replace e820_/_early string with memblock_
2010-08-27 11:13:47 -07:00
bounce.c
bounce: call flush_dcache_page() after bounce_copy_vec()
2010-09-09 18:57:25 -07:00
compaction.c
mm: compaction: handle active and inactive fairly in too_many_isolated
2010-09-09 18:57:24 -07:00
debug-pagealloc.c
…
dmapool.c
mm: add a might_sleep_if() to dma_pool_alloc()
2010-10-26 16:52:08 -07:00
fadvise.c
readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM
2010-03-06 11:26:25 -08:00
failslab.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
filemap_xip.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
filemap.c
radix-tree: fix RCU bug
2010-11-12 07:55:32 -08:00
fremap.c
Avoid pgoff overflow in remap_file_pages
2010-09-25 09:34:58 -07:00
highmem.c
mm,x86: fix kmap_atomic_push vs ioremap_32.c
2010-10-27 18:03:05 -07:00
hugetlb.c
mm/hugetlb.c: add missing spin_lock() to hugetlb_cow()
2010-10-26 16:52:11 -07:00
hwpoison-inject.c
HWPOISON, hugetlb: support hwpoison injection for hugepage
2010-08-11 09:23:11 +02:00
init-mm.c
mm: provide init_mm mm_context initializer
2010-08-09 20:44:54 -07:00
internal.h
mm: fix is_mem_section_removable() page_order BUG_ON check
2010-10-26 16:52:11 -07:00
Kconfig
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2010-10-22 17:31:36 -07:00
Kconfig.debug
trivial: improve help text for mm debug config options
2009-09-21 15:14:57 +02:00
kmemcheck.c
kmemcheck: Fix build errors due to missing slab.h
2010-03-30 22:02:32 +09:00
kmemleak-test.c
…
kmemleak.c
kmemleak: Fix typo in the comment
2010-08-08 21:57:23 +01:00
ksm.c
ksm: fix bad user data when swapping
2010-10-04 11:09:53 -07:00
maccess.c
MN10300: Save frame pointer in thread_info struct rather than global var
2010-10-27 17:29:01 +01:00
madvise.c
HWPOISON: Add a madvise() injector for soft page offlining
2009-12-16 12:20:00 +01:00
Makefile
percpu: use percpu allocator on UP too
2010-10-02 10:26:05 +03:00
memblock.c
memblock: Annotate memblock functions with __init_memblock
2010-10-11 16:00:52 -07:00
memcontrol.c
cgroups: make swap accounting default behavior configurable
2010-11-25 06:50:45 +09:00
memory_hotplug.c
mm: do_migrate_range: reduce list_empty() check
2010-10-26 16:52:11 -07:00
memory-failure.c
mm: compaction: fix COMPACTPAGEFAILED counting
2010-10-26 16:52:06 -07:00
memory.c
use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages
2010-10-26 16:52:13 -07:00
mempolicy.c
numa: fix slab_node(MPOL_BIND)
2010-10-28 10:04:30 -07:00
mempool.c
mm: remove broken 'kzalloc' mempool
2009-09-22 07:17:35 -07:00
migrate.c
mm: fix error reporting in move_pages() syscall
2010-10-26 16:52:11 -07:00
mincore.c
mincore: do nested page table walks
2010-05-25 08:06:58 -07:00
mlock.c
mm: Move vma_stack_continue into mm.h
2010-09-09 09:05:06 -07:00
mm_init.c
…
mmap.c
audit mmap
2010-10-30 08:45:43 -04:00
mmu_context.c
exit: fix oops in sync_mm_rss
2010-03-24 16:31:21 -07:00
mmu_notifier.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
mmzone.c
mm: page allocator: calculate a better estimate of NR_FREE_PAGES when memory is low and kswapd is awake
2010-09-09 18:57:25 -07:00
mprotect.c
perf_events: Fix perf_counter_mmap() hook in mprotect()
2010-11-09 10:19:38 -08:00
mremap.c
mm: remove pte_*map_nested()
2010-10-26 16:52:08 -07:00
msync.c
sanitize vfs_fsync calling conventions
2010-05-21 18:31:21 -04:00
nommu.c
nommu: yield CPU while disposing VM
2010-11-25 06:50:38 +09:00
oom_kill.c
oom: kill all threads sharing oom killed task's mm
2010-10-26 16:52:05 -07:00
page_alloc.c
mm/page_alloc.c: fix build_all_zonelist() where percpu_alloc() is wrongly called under stop_machine_run()
2010-11-25 06:50:45 +09:00
page_cgroup.c
kmemleak: Annotate false positive in init_section_page_cgroup()
2010-07-19 11:54:14 +01:00
page_io.c
block: unify flags for struct bio and struct request
2010-08-07 18:20:39 +02:00
page_isolation.c
mm: page_isolation: codeclean fix comment and rm unneeded val init
2010-10-26 16:52:11 -07:00
page-writeback.c
writeback: remove the internal 5% low bound on dirty_ratio
2010-10-26 16:52:08 -07:00
pagewalk.c
pagemap: fix pfn calculation for hugepage
2010-04-07 08:38:04 -07:00
percpu-km.c
percpu: clear memory allocated with the km allocator
2010-10-02 10:28:42 +03:00
percpu-vm.c
percpu: move vmalloc based chunk management into percpu-vm.c
2010-05-01 08:30:50 +02:00
percpu.c
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2010-10-24 13:41:39 -07:00
prio_tree.c
…
quicklist.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
readahead.c
readahead.c: fix comment
2010-05-25 08:07:00 -07:00
rmap.c
rmap: make anon_vma_chain_free() static
2010-10-26 16:52:10 -07:00
shmem.c
convert get_sb_nodev() users
2010-10-29 04:16:31 -04:00
slab.c
replace nested max/min macros with {max,min}3 macro
2010-10-26 16:52:12 -07:00
slob.c
slob: fix gfp flags for order-0 page allocations
2010-10-02 10:24:28 +03:00
slub.c
slub: Fix slub_lock down/up imbalance
2010-11-14 16:53:11 +02:00
sparse-vmemmap.c
x86: Use memblock to replace early_res
2010-08-27 11:12:29 -07:00
sparse.c
sparsemem: on no vmemmap path put mem_map on node high too
2010-05-25 08:06:56 -07:00
swap_state.c
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
swap.c
fuse: use release_pages()
2010-10-27 18:03:17 -07:00
swapfile.c
/proc/swaps: support polling
2010-10-26 16:52:11 -07:00
thrash.c
…
truncate.c
check ATTR_SIZE contraints in inode_change_ok
2010-08-09 16:47:39 -04:00
util.c
export __get_user_pages_fast() function
2010-10-24 10:51:24 +02:00
vmalloc.c
mm: add vzalloc() and vzalloc_node() helpers
2010-10-26 16:52:10 -07:00
vmscan.c
vmscan: avoid setting zone congested if no page dirty
2010-11-12 07:55:31 -08:00
vmstat.c
vmstat: fix offset calculation on void*
2010-11-03 14:39:58 -04:00