Shaohua Li 45cac65b0f readahead: fault retry breaks mmap file read random detection ... .fault now can retry. The retry can break state machine of .fault. In filemap_fault, if page is miss, ra->mmap_miss is increased. In the second try, since the page is in page cache now, ra->mmap_miss is decreased. And these are done in one fault, so we can't detect random mmap file access. Add a new flag to indicate .fault is tried once. In the second try, skip ra->mmap_miss decreasing. The filemap_fault state machine is ok with it. I only tested x86, didn't test other archs, but looks the change for other archs is obvious, but who knows :) Signed-off-by: Shaohua Li <shaohua.li@fusionio.com> Cc: Rik van Riel <riel@redhat.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-10-09 16:22:47 +09:00
..
alignment.c	sh: use printk_ratelimited instead of printk_ratelimit	2011-06-30 15:10:06 +09:00
asids-debugfs.c	sh: provide generic arch_debugfs_dir.	2010-09-24 04:04:26 +09:00
cache-debugfs.c	sh: fix wrong icache/dcache address-array start addr in cache-debugfs.	2011-06-06 12:30:02 +09:00
cache-sh2.c	sh: Mass ctrl_in/outX to __raw_read/writeX conversion.	2010-01-26 12:58:40 +09:00
cache-sh2a.c	sh: Fix sh2a build error for CONFIG_CACHE_WRITETHROUGH	2012-02-24 13:21:46 +09:00
cache-sh3.c	sh: Mass ctrl_in/outX to __raw_read/writeX conversion.	2010-01-26 12:58:40 +09:00
cache-sh4.c	sh: fix up fallout from system.h disintegration.	2012-03-30 19:29:57 +09:00
cache-sh5.c	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
cache-sh7705.c	sh: Assume new page cache pages have dirty dcache lines.	2010-12-01 15:39:51 +09:00
cache-shx3.c	sh: Zero out aliases counter when using SH-X3 hardware assistance.	2010-04-20 15:37:23 +09:00
cache.c	sh: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:15 +08:00
consistent.c	SH: adapt for dma_map_ops changes	2012-03-28 16:36:37 +02:00
extable_32.c
extable_64.c
fault.c	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
flush-sh4.c	sh: fix up fallout from system.h disintegration.	2012-03-30 19:29:57 +09:00
gup.c	sh: lockless get_user_pages_fast()	2010-10-27 16:43:08 +09:00
hugetlbpage.c	thp: pte alloc trans splitting	2011-01-13 17:32:40 -08:00
init.c	memblock: s/memblock_analyze()/memblock_allow_resize()/ and update users	2011-12-08 10:22:08 -08:00
ioremap_fixed.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
ioremap.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
Kconfig	memblock: Kill early_node_map[]	2011-12-08 10:22:09 -08:00
kmap.c	sh: Assume new page cache pages have dirty dcache lines.	2010-12-01 15:39:51 +09:00
Makefile	sh64: Fix up caller-save register settings for fast-path.	2012-05-14 16:46:07 +09:00
mmap.c	fix broken aliasing checks for MAP_FIXED on sparc32, mips, arm and sh	2009-12-11 06:44:59 -05:00
nommu.c	sh: stub __flush_tlb_global() definition for nommu.	2010-08-16 14:53:01 +09:00
numa.c	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
pgtable.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
pmb.c	Disintegrate asm/system.h for SH	2012-03-28 18:30:03 +01:00
sram.c	sh: fix up fallout from system.h disintegration.	2012-03-30 19:29:57 +09:00
tlb-debugfs.c	sh: provide generic arch_debugfs_dir.	2010-09-24 04:04:26 +09:00
tlb-pteaex.c	Disintegrate asm/system.h for SH	2012-03-28 18:30:03 +01:00
tlb-sh3.c	Disintegrate asm/system.h for SH	2012-03-28 18:30:03 +01:00
tlb-sh4.c	Disintegrate asm/system.h for SH	2012-03-28 18:30:03 +01:00
tlb-sh5.c	sh64: Fix up section mismatch warnings.	2012-06-14 15:05:53 +09:00
tlb-urb.c	sh: update the TLB replacement counter for entry wiring.	2010-03-26 11:37:16 +09:00
tlbex_32.c	sh: Enable shared page fault handler for _32/_64.	2012-05-14 15:33:28 +09:00
tlbex_64.c	sh64: Set additional fault code values.	2012-05-14 17:46:49 +09:00
tlbflush_32.c	sh: Provide a global TLB flush for U/I-TLB clear.	2010-07-02 15:44:09 +09:00
tlbflush_64.c	sh64: Migrate to __update_tlb() API.	2012-05-14 15:52:28 +09:00
uncached.c	sh: nommu: use 32-bit phys mode.	2010-11-04 12:32:24 +09:00