Linus Torvalds 8c0863403f dirty page balancing: Get rid of broken unmapped_ratio logic ... This code harks back to the days when we didn't count dirty mapped pages, which led us to try to balance the number of dirty unmapped pages by how much unmapped memory there was in the system. That makes no sense any more, since now the dirty counts include the mapped pages. Not to mention that the math doesn't work with HIGHMEM machines anyway, and causes the unmapped_ratio to potentially turn negative (which we do catch thanks to clamping it at a minimum value, but I mention that as an indication of how broken the code is). The code also was written at a time when the default dirty ratio was much larger, and the unmapped_ratio logic effectively capped that large dirty ratio a bit. Again, we've since lowered the dirty ratio rather aggressively, further lessening the point of that code. Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-11-15 16:41:52 -08:00
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allocpercpu.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	2007-07-17 10:23:02 -07:00
backing-dev.c	mm: per device dirty threshold	2007-10-17 08:42:45 -07:00
bootmem.c	[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols	2006-12-07 08:39:44 -08:00
bounce.c	block: Initial support for data-less (or empty) barrier support	2007-10-16 11:03:56 +02:00
fadvise.c	[PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path	2006-12-08 08:28:43 -08:00
filemap.c	Remove broken ptrace() special-case code from file mapping	2007-10-31 09:19:46 -07:00
filemap_xip.c	mm: write iovec cleanup	2007-10-16 09:42:54 -07:00
fremap.c	remap_file_pages: kernel-doc corrections	2007-10-17 08:43:07 -07:00
highmem.c	Create the ZONE_MOVABLE zone	2007-07-17 10:22:59 -07:00
hugetlb.c	hugetlb: fix i_blocks accounting	2007-11-14 18:45:40 -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	small documentation fixes	2007-10-20 02:46:58 +02:00
madvise.c	speed up madvise_need_mmap_write() usage	2007-07-16 09:05:36 -07:00
Makefile	memory unplug: page isolation	2007-10-16 09:43:02 -07:00
memory.c	Swap delay accounting, include lock_page() delays	2007-11-14 18:45:44 -08:00
memory_hotplug.c	Add IORESOUCE_BUSY flag for System RAM	2007-11-14 18:45:39 -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	Typo fixes retrun -> return	2007-10-20 02:13:26 +02:00
mincore.c	[PATCH] mincore: vma crossing fix	2007-02-15 09:57:03 -08:00
mlock.c	do not limit locked memory when RLIMIT_MEMLOCK is RLIM_INFINITY	2007-07-16 09:05:37 -07:00
mmap.c	fix mprotect vma_wants_writenotify prot	2007-10-23 08:32:06 -07:00
mmzone.c	[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols	2006-12-07 08:39:44 -08:00
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	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
nommu.c	NOMMU: mm/nommu.c needs linux/module.h	2007-10-29 07:53:26 -07:00
oom_kill.c	oom_kill bug	2007-10-20 15:04:06 -07:00
page-writeback.c	dirty page balancing: Get rid of broken unmapped_ratio logic	2007-11-15 16:41:52 -08:00
page_alloc.c	Revert "Bias the placement of kernel pages at lower PFNs"	2007-11-12 14:14:44 -08:00
page_io.c	Drop 'size' argument from bio_endio and bi_end_io	2007-10-10 09:25:57 +02:00
page_isolation.c	memory hotremove: unset migrate type "ISOLATE" after removal	2007-11-14 18:45:38 -08:00
pdflush.c	Freezer: make kernel threads nonfreezable by default	2007-07-17 10:23:02 -07:00
prio_tree.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
quicklist.c	Quicklists for page table pages	2007-05-07 12:12:54 -07:00
readahead.c	mm: bdi init hooks	2007-10-17 08:42:45 -07:00
rmap.c	Migration: find correct vma in new_vma_page()	2007-11-14 18:45:38 -08:00
shmem.c	fix tmpfs BUG and AOP_WRITEPAGE_ACTIVATE	2007-10-30 08:06:55 -07:00
shmem_acl.c	[PATCH] Fix typos in mm/shmem_acl.c	2006-10-11 11:14:23 -07:00
slab.c	slab: fix typo in allocation failure handling	2007-11-14 18:45:36 -08:00
slob.c	slob: fix memory corruption	2007-11-15 08:36:27 -08:00
slub.c	SLUB: killed the unused "end" variable	2007-11-12 10:32:29 -08:00
sparse-vmemmap.c	mm/sparse-vmemmap.c: make sure init_mm is included	2007-10-30 08:06:55 -07:00
sparse.c	Revert "x86_64: allocate sparsemem memmap above 4G"	2007-10-29 14:05:37 -07:00
swap.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
swap_state.c	mm: clarify __add_to_swap_cache locking	2007-10-16 09:42:53 -07:00
swapfile.c	Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION	2007-07-29 16:45:38 -07:00
thrash.c	Bug in mm/thrash.c function grab_swap_token()	2007-05-11 08:29:32 -07:00
tiny-shmem.c	r/o bind mounts: filesystem helpers for custom 'struct file's	2007-10-17 08:43:04 -07:00
truncate.c	Drop some headers from mm.h	2007-10-17 08:42:55 -07:00
util.c	fix mm/util.c:krealloc()	2007-11-14 18:45:41 -08:00
vmalloc.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
vmscan.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
vmstat.c	vmstat: fix section mismatch warning	2007-11-14 18:45:42 -08:00