Bron Gondwana 195cf453d2 mm/page-writeback: highmem_is_dirtyable option ... Add vm.highmem_is_dirtyable toggle A 32 bit machine with HIGHMEM64 enabled running DCC has an MMAPed file of approximately 2Gb size which contains a hash format that is written randomly by the dbclean process. On 2.6.16 this process took a few minutes. With lowmem only accounting of dirty ratios, this takes about 12 hours of 100% disk IO, all random writes. Include a toggle in /proc/sys/vm/highmem_is_dirtyable which can be set to 1 to add the highmem back to the total available memory count. [akpm@linux-foundation.org: Fix the CONFIG_DETECT_SOFTLOCKUP=y build] Signed-off-by: Bron Gondwana <brong@fastmail.fm> Cc: Ethan Solomita <solo@google.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: WU Fengguang <wfg@mail.ustc.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-02-05 09:44:18 -08:00
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allocpercpu.c
backing-dev.c	mm/backing-dev.c: fix percpu_counter_destroy call bug in bdi_init	2007-12-05 09:21:18 -08:00
bootmem.c
bounce.c
fadvise.c
filemap_xip.c	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
filemap.c	radix-tree: avoid atomic allocations for preloaded insertions	2008-02-05 09:44:17 -08:00
fremap.c	sys_remap_file_pages: fix ->vm_file accounting	2008-02-05 09:44:07 -08:00
highmem.c
hugetlb.c	fix hugepages leak due to pagetable page sharing	2008-01-24 08:07:27 -08:00
internal.h	Breakout page_order() to internal.h to avoid special knowledge of the buddy allocator	2007-10-16 09:43:01 -07:00
Kconfig	sh: Bump number of quicklists for SH-5.	2008-01-28 13:18:55 +09:00
madvise.c
Makefile	maps4: make page monitoring /proc file optional	2008-02-05 09:44:17 -08:00
memory_hotplug.c	Page allocator: clean up pcp draining functions	2008-02-05 09:44:17 -08:00
memory.c	add mm argument to pte/pmd/pud/pgd_free	2008-02-05 09:44:18 -08:00
mempolicy.c	Migration: find correct vma in new_vma_page()	2007-11-14 18:45:38 -08:00
mempool.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
migrate.c	maps4: move is_swap_pte	2008-02-05 09:44:16 -08:00
mincore.c
mlock.c
mmap.c	arch_rebalance_pgtables call	2008-02-05 09:44:18 -08:00
mmzone.c
mprotect.c	fix mprotect vma_wants_writenotify prot	2007-10-23 08:32:06 -07:00
mremap.c	sparse pointer use of zero as null	2007-10-18 14:37:31 -07:00
msync.c
nommu.c	vmalloc: add const to void* parameters	2008-02-05 09:44:14 -08:00
oom_kill.c	sched: sched_rt_entity	2008-01-25 21:08:27 +01:00
page_alloc.c	Page allocator: get rid of the list of cold pages	2008-02-05 09:44:18 -08:00
page_io.c
page_isolation.c	memory hotremove: unset migrate type "ISOLATE" after removal	2007-11-14 18:45:38 -08:00
page-writeback.c	mm/page-writeback: highmem_is_dirtyable option	2008-02-05 09:44:18 -08:00
pagewalk.c	maps4: introduce a generic page walker	2008-02-05 09:44:16 -08:00
pdflush.c
prio_tree.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
quicklist.c	quicklists: Only consider memory that can be used with GFP_KERNEL	2008-01-14 08:52:22 -08:00
readahead.c	mm: bdi init hooks	2007-10-17 08:42:45 -07:00
rmap.c	radix-tree: avoid atomic allocations for preloaded insertions	2008-02-05 09:44:17 -08:00
shmem_acl.c
shmem.c	tmpfs: fix shmem_swaplist races	2008-02-05 09:44:16 -08:00
slab.c	cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()	2008-01-25 21:08:02 +01:00
slob.c	Avoid double memclear() in SLOB/SLUB	2007-12-09 10:17:52 -08:00
slub.c	SLUB: Do not upset lockdep	2008-02-04 10:56:02 -08:00
sparse-vmemmap.c	memory hotplug fix: fix section mismatch in vmammap_allock_block()	2007-11-29 09:24:54 -08:00
sparse.c	is_vmalloc_addr(): Check if an address is within the vmalloc boundaries	2008-02-05 09:44:14 -08:00
swap_state.c	tmpfs: move swap swizzling into shmem	2008-02-05 09:44:15 -08:00
swap.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
swapfile.c	tmpfs: open a window in shmem_unuse_inode	2008-02-05 09:44:15 -08:00
thrash.c
tiny-shmem.c	Remove unused code from mm/tiny-shmem.c	2008-02-05 09:44:17 -08:00
truncate.c	Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user	2008-02-05 09:44:13 -08:00
util.c	fix mm/util.c:krealloc()	2007-11-14 18:45:41 -08:00
vmalloc.c	mm: don't allow ioremapping of ranges larger than vmalloc space	2008-02-05 09:44:18 -08:00
vmscan.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
vmstat.c	Page allocator: get rid of the list of cold pages	2008-02-05 09:44:18 -08:00