Linus Torvalds 83896fb5e5 Revert "mm: simplify code of swap.c" ...

This reverts commit d8505dee1a87b8d41b9c4ee1325cd72258226fbc.

Chris Mason ended up chasing down some page allocation errors and pages
stuck waiting on the IO scheduler, and was able to narrow it down to two
commits: commit 744ed1442757 ("mm: batch activate_page() to reduce lock
contention") and d8505dee1a87 ("mm: simplify code of swap.c").

This reverts the second one.

Reported-and-debugged-by: Chris Mason <chris.mason@oracle.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: linux-mm <linux-mm@kvack.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2011-01-17 14:42:34 -08:00

..

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

thp: use compaction for all allocation orders

2011-01-13 17:32:46 -08:00

debug-pagealloc.c

generic debug pagealloc

2009-04-01 08:59:13 -07:00

dmapool.c

mm/dmapool.c: use TASK_UNINTERRUPTIBLE in dma_pool_alloc()

2011-01-13 17:32:48 -08:00

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

mm: remove likely() from grab_cache_page_write_begin()

2011-01-13 17:32:36 -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

huge_memory.c

thp: khugepaged: make khugepaged aware about madvise

2011-01-13 17:32:47 -08:00

hugetlb.c

hugetlb: fix handling of parse errors in sysfs

2011-01-13 17:32:49 -08:00

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

Revert "mm: batch activate_page() to reduce lock contention"

2011-01-17 14:42:19 -08:00

Kconfig

thp: select CONFIG_COMPACTION if TRANSPARENT_HUGEPAGE enabled

2011-01-13 17:32:45 -08:00

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

percpu: clean up percpu variable definitions

2009-06-24 15:13:48 +09:00

kmemleak.c

kmemleak: Fix typo in the comment

2010-08-08 21:57:23 +01:00

ksm.c

ksm: drain pagevecs to lru

2011-01-13 17:32:49 -08:00

maccess.c

MN10300: Save frame pointer in thread_info struct rather than global var

2010-10-27 17:29:01 +01:00

madvise.c

thp: khugepaged: make khugepaged aware about madvise

2011-01-13 17:32:47 -08:00

Makefile

thp: transparent hugepage core

2011-01-13 17:32:42 -08:00

memblock.c

memblock: Annotate memblock functions with __init_memblock

2010-10-11 16:00:52 -07:00

memcontrol.c

memcg: fix memory migration of shmem swapcache

2011-01-13 17:32:51 -08:00

memory_hotplug.c

Merge branch 'slub/hotplug' into slab/urgent

2011-01-15 13:28:17 +02:00

memory-failure.c

thp: compound_trans_order

2011-01-13 17:32:47 -08:00

memory.c

thp: add debug checks for mapcount related invariants

2011-01-13 17:32:47 -08:00

mempolicy.c

thp: add numa awareness to hugepage allocations

2011-01-13 17:32:45 -08:00

mempool.c

mm: remove broken 'kzalloc' mempool

2009-09-22 07:17:35 -07:00

migrate.c

memcg: fix memory migration of shmem swapcache

2011-01-13 17:32:51 -08:00

mincore.c

thp: mincore transparent hugepage support

2011-01-13 17:32:44 -08:00

mlock.c

mlock: do not hold mmap_sem for extended periods of time

2011-01-13 17:32:36 -08:00

mm_init.c

…

mmap.c

brk: fix min_brk lower bound computation for COMPAT_BRK

2011-01-13 17:32:48 -08:00

mmu_context.c

exit: fix oops in sync_mm_rss

2010-03-24 16:31:21 -07:00

mmu_notifier.c

thp: mmu_notifier_test_young

2011-01-13 17:32:46 -08:00

mmzone.c

mm: page allocator: adjust the per-cpu counter threshold when memory is low

2011-01-13 17:32:31 -08:00

mprotect.c

thp: mprotect: transparent huge page support

2011-01-13 17:32:44 -08:00

mremap.c

thp: split_huge_page_mm/vma

2011-01-13 17:32:41 -08:00

msync.c

sanitize vfs_fsync calling conventions

2010-05-21 18:31:21 -04:00

nommu.c

mlock: do not hold mmap_sem for extended periods of time

2011-01-13 17:32:36 -08:00

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: don't cache `current' in a local

2011-01-13 17:32:49 -08:00

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: avoid unnecessary determine_dirtyable_memory call

2011-01-13 17:32:38 -08:00

pagewalk.c

thp: split_huge_page_mm/vma

2011-01-13 17:32:41 -08:00

percpu-km.c

percpu: clear memory allocated with the km allocator

2010-10-02 10:28:42 +03:00

percpu-vm.c

mm: remove gfp mask from pcpu_get_vm_areas

2011-01-13 17:32:34 -08:00

percpu.c

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2011-01-13 10:05:56 -08:00

pgtable-generic.c

fix non-x86 build failure in pmdp_get_and_clear

2011-01-16 15:05:44 -08:00

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

memcg: create extensible page stat update routines

2011-01-13 17:32:50 -08:00

shmem.c

fs: icache RCU free inodes

2011-01-07 17:50:26 +11:00

slab.c

mm/slab.c: make local symbols static

2011-01-15 13:28:36 +02:00

slob.c

kernel: kmem_ptr_validate considered harmful

2011-01-07 17:50:16 +11:00

slub.c

Merge branch 'slub/hotplug' into slab/urgent

2011-01-15 13:28:17 +02:00

sparse-vmemmap.c

tree-wide: fix comment/printk typos

2010-11-01 15:38:34 -04:00

sparse.c

thp: remove PG_buddy

2011-01-13 17:32:43 -08:00

swap_state.c

thp: split_huge_page paging

2011-01-13 17:32:41 -08:00

swap.c

Revert "mm: simplify code of swap.c"

2011-01-17 14:42:34 -08:00

swapfile.c

thp: split_huge_page paging

2011-01-13 17:32:41 -08:00

thrash.c

mm: pass mm to grab_swap_token

2009-06-23 12:50:05 -07:00

truncate.c

Call the filesystem back whenever a page is removed from the page cache

2010-12-02 09:55:21 -05:00

util.c

kernel: kmem_ptr_validate considered harmful

2011-01-07 17:50:16 +11:00

vmalloc.c

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

2011-01-13 20:15:35 -08:00

vmscan.c

Revert "mm: batch activate_page() to reduce lock contention"

2011-01-17 14:42:19 -08:00

vmstat.c

thp: transparent hugepage vmstat

2011-01-13 17:32:43 -08:00