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c60aa176c6
linux/mm
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Hugh Dickins c60aa176c6 swapfile: swap allocation cycle if nonrot 
Though attempting to find free clusters (Andrea), swap allocation has
always restarted its searches from the beginning of the swap area (sct),
to reduce seek times between swap pages, by not scattering them all over
the partition.

But on a solidstate swap device, seeks are cheap, and block remapping to
level the wear may be limited by zones: in that case it's better to cycle
around the whole partition.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Joern Engel <joern@logfs.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Donjun Shin <djshin90@gmail.com>
Cc: Tejun Heo <teheo@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06 15:59:06 -08:00
..
allocpercpu.c mm/allocpercpu.c: make 4 functions static 2008-07-26 12:00:12 -07:00
backing-dev.c mm: change dirty limit type specifiers to unsigned long 2009-01-06 15:59:02 -08:00
bootmem.c misc: replace __FUNCTION__ with __func__ 2008-10-16 11:21:30 -07:00
bounce.c bounce: don't rely on a zeroed bio_vec list 2008-12-29 08:29:52 +01:00
dmapool.c dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too 2008-04-28 08:58:20 -07:00
fadvise.c Remove Andrew Morton's old email accounts 2008-10-16 11:21:32 -07:00
failslab.c SLUB: failslab support 2008-12-29 11:27:46 +02:00
filemap_xip.c mm: xip/ext2 fix block allocation race 2008-08-20 15:40:32 -07:00
filemap.c mm: write_cache_pages integrity fix 2009-01-06 15:58:59 -08:00
fremap.c mmap: handle mlocked pages during map, remap, unmap 2008-10-20 08:52:31 -07:00
highmem.c x86, pat: avoid highmem cache attribute aliasing 2008-08-15 17:22:57 +02:00
hugetlb.c mm: report the MMU pagesize in /proc/pid/smaps 2009-01-06 15:58:58 -08:00
internal.h hugetlb: pull gigantic page initialisation out of the default path 2008-11-06 15:41:18 -08:00
Kconfig Unevictable LRU Infrastructure 2008-10-20 08:50:26 -07:00
maccess.c kgdb: fix optional arch functions and probe_kernel_* 2008-04-17 20:05:39 +02:00
madvise.c madvise: update function comment of madvise_dontneed 2008-07-30 09:41:45 -07:00
Makefile SLUB: failslab support 2008-12-29 11:27:46 +02:00
memcontrol.c mm: make mem_cgroup_resize_limit() static 2009-01-06 15:59:04 -08:00
memory_hotplug.c mm: remove GFP_HIGHUSER_PAGECACHE 2009-01-06 15:59:01 -08:00
memory.c mm: make maddr __iomem 2009-01-06 15:59:04 -08:00
mempolicy.c Merge branch 'master' into next 2008-11-14 11:29:12 +11:00
mempool.c spelling fixes: mm/ 2007-10-20 01:27:18 +02:00
migrate.c mm: add Set,ClearPageSwapCache stubs 2009-01-06 15:59:02 -08:00
mincore.c mm: remove nopage 2008-04-28 08:58:18 -07:00
mlock.c x86, bts: memory accounting 2008-12-20 09:15:47 +01:00
mm_init.c mm: mminit_loglevel cannot be __meminitdata anymore 2008-08-20 15:40:30 -07:00
mmap.c mm: update my address 2009-01-05 17:44:42 -08:00
mmu_notifier.c mmu-notifiers: core 2008-07-28 16:30:21 -07:00
mmzone.c mm: mark the correct zone as full when scanning zonelists 2008-09-13 14:41:52 -07:00
mprotect.c mm: cleanup: remove #ifdef CONFIG_MIGRATION 2009-01-06 15:59:00 -08:00
mremap.c mm: update my address 2009-01-05 17:44:42 -08:00
msync.c add a vfs_fsync helper 2009-01-05 11:54:28 -05:00
nommu.c inode->i_op is never NULL 2009-01-05 11:54:28 -05:00
oom_kill.c oom: print triggering task's cpuset and mems allowed 2009-01-06 15:58:59 -08:00
page_alloc.c mm: make setup_per_zone_inactive_ratio() static 2009-01-06 15:59:05 -08:00
page_cgroup.c mm: make init_section_page_cgroup() static 2009-01-06 15:59:04 -08:00
page_io.c mm: try_to_free_swap replaces remove_exclusive_swap_page 2009-01-06 15:59:03 -08:00
page_isolation.c memory hotplug: fix page_zone() calculation in test_pages_isolated() 2008-11-06 15:41:19 -08:00
page-writeback.c mm: add dirty_background_bytes and dirty_bytes sysctls 2009-01-06 15:59:03 -08:00
pagewalk.c pagemap: pass mm into pagewalkers 2008-06-12 18:05:41 -07:00
pdflush.c cpumask: convert mm/ 2009-01-01 10:12:29 +10:30
prio_tree.c spelling fixes: mm/ 2007-10-20 01:27:18 +02:00
quicklist.c mm: size of quicklists shouldn't be proportional to the number of CPUs 2008-09-02 19:21:38 -07:00
readahead.c vmscan: split LRU lists into anon & file sets 2008-10-20 08:50:25 -07:00
rmap.c mm: further cleanup page_add_new_anon_rmap 2009-01-06 15:59:02 -08:00
shmem_acl.c [PATCH] sanitize ->permission() prototype 2008-07-26 20:53:14 -04:00
shmem.c mm: don't mark_page_accessed in shmem_fault 2009-01-06 15:58:58 -08:00
slab.c cpumask: convert mm/ 2009-01-01 10:12:29 +10:30
slob.c slob: do not pass the SLAB flags as GFP in kmem_cache_create() 2008-12-15 16:27:06 -08:00
slub.c cpumask: convert mm/ 2009-01-01 10:12:29 +10:30
sparse-vmemmap.c vmemmap: warn about page_structs with remote distance 2008-11-06 15:41:19 -08:00
sparse.c meminit section warnings 2008-11-30 10:03:35 -08:00
swap_state.c mm: remove gfp_mask from add_to_swap 2009-01-06 15:59:04 -08:00
swap.c mm: try_to_free_swap replaces remove_exclusive_swap_page 2009-01-06 15:59:03 -08:00
swapfile.c swapfile: swap allocation cycle if nonrot 2009-01-06 15:59:06 -08:00
thrash.c
tiny-shmem.c Export tiny shmem_file_setup for DRM-GEM 2008-10-20 16:17:42 -07:00
truncate.c mmap: handle mlocked pages during map, remap, unmap 2008-10-20 08:52:31 -07:00
util.c mm: Make generic weak get_user_pages_fast and EXPORT_GPL it 2008-08-12 17:52:53 +10:00
vmalloc.c mm: vmalloc make lazy unmapping configurable 2009-01-06 15:59:01 -08:00
vmscan.c mm: make scan_zone_unevictable_pages() static 2009-01-06 15:59:04 -08:00
vmstat.c cpumask: convert mm/ 2009-01-01 10:12:29 +10:30