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Fengguang Wu 3ea89ee86a readahead: convert filemap invocations 
Convert filemap reads to use on-demand readahead.

The new call scheme is to
- call readahead on non-cached page
- call readahead on look-ahead page
- update prev_index when finished with the read request

Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
Cc: Steven Pratt <slpratt@austin.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:44 -07:00
..
allocpercpu.c Slab allocators: Replace explicit zeroing with __GFP_ZERO 2007-07-17 10:23:02 -07:00
backing-dev.c remove mm/backing-dev.c:congestion_wait_interruptible() 2007-07-16 09:05:52 -07:00
bootmem.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
bounce.c block: blk_max_pfn is somtimes wrong 2007-03-27 08:52:47 +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 readahead: convert filemap invocations 2007-07-19 10:04:44 -07:00
filemap.h Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
filemap_xip.c mm: fault feedback #2 2007-07-19 10:04:41 -07:00
fremap.c only allow nonlinear vmas for ram backed filesystems 2007-07-19 10:04:41 -07:00
highmem.c Create the ZONE_MOVABLE zone 2007-07-17 10:22:59 -07:00
hugetlb.c mm: fault feedback #2 2007-07-19 10:04:41 -07:00
internal.h Make page->private usable in compound pages 2007-05-07 12:12:53 -07:00
Kconfig CONFIG_BOUNCE to avoid useless inclusion of bounce buffer logic 2007-07-17 10:23:02 -07:00
madvise.c speed up madvise_need_mmap_write() usage 2007-07-16 09:05:36 -07:00
Makefile CONFIG_BOUNCE to avoid useless inclusion of bounce buffer logic 2007-07-17 10:23:02 -07:00
memory.c mm: fix clear_page_dirty_for_io vs fault race 2007-07-19 10:04:41 -07:00
memory_hotplug.c memory hotplug: fix unnecessary calling of init_currenty_empty_zone() 2007-06-01 08:18:29 -07:00
mempolicy.c Allow huge page allocations to use GFP_HIGH_MOVABLE 2007-07-17 10:22:59 -07:00
mempool.c Slab allocators: Replace explicit zeroing with __GFP_ZERO 2007-07-17 10:23:02 -07:00
migrate.c Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
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 mm: merge populate and nopage into fault (fixes nonlinear) 2007-07-19 10:04:41 -07:00
mmzone.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
mprotect.c [PATCH] paravirt: lazy mmu mode hooks.patch 2006-10-01 00:39:33 -07:00
mremap.c security: Protection for exploiting null dereference using mmap 2007-07-11 22:52:29 -04:00
msync.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
nommu.c mm: fault feedback #1 2007-07-19 10:04:41 -07:00
oom_kill.c oom: fix constraint deadlock 2007-05-07 12:12:55 -07:00
page-writeback.c mm: fix clear_page_dirty_for_io vs fault race 2007-07-19 10:04:41 -07:00
page_alloc.c readahead: introduce PG_readahead 2007-07-19 10:04:43 -07:00
page_io.c [PATCH] swsusp: use block device offsets to identify swap locations 2006-12-07 08:39:27 -08:00
pdflush.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
prio_tree.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quicklist.c Quicklists for page table pages 2007-05-07 12:12:54 -07:00
readahead.c readahead: on-demand readahead logic 2007-07-19 10:04:44 -07:00
rmap.c mm: merge populate and nopage into fault (fixes nonlinear) 2007-07-19 10:04:41 -07:00
shmem.c mm: fault feedback #2 2007-07-19 10:04:41 -07:00
shmem_acl.c [PATCH] Fix typos in mm/shmem_acl.c 2006-10-11 11:14:23 -07:00
slab.c kallsyms: make KSYM_NAME_LEN include space for trailing '\0' 2007-07-17 10:23:03 -07:00
slob.c Slab allocators: Cleanup zeroing allocations 2007-07-17 10:23:01 -07:00
slub.c SLUB: Fix CONFIG_SLUB_DEBUG use for CONFIG_NUMA 2007-07-17 10:23:02 -07:00
sparse.c Move three functions that are only needed for CONFIG_MEMORY_HOTPLUG 2007-06-08 17:23:33 -07:00
swap.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
swap_state.c Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated 2007-07-17 10:22:59 -07:00
swapfile.c vmscan: fix comments related to shrink_list() 2007-07-16 09:05:35 -07:00
thrash.c Bug in mm/thrash.c function grab_swap_token() 2007-05-11 08:29:32 -07:00
tiny-shmem.c [PATCH] mm/{,tiny-}shmem.c cleanups 2007-03-01 14:53:35 -08:00
truncate.c mm: merge populate and nopage into fault (fixes nonlinear) 2007-07-19 10:04:41 -07:00
util.c add kstrndup 2007-07-18 08:47:39 -07:00
vmalloc.c Allocate and free vmalloc areas 2007-07-18 08:47:41 -07:00
vmscan.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
vmstat.c Create the ZONE_MOVABLE zone 2007-07-17 10:22:59 -07:00