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
..
consistent.c	microblaze: Fix sparse warning - consistent_alloc function	2011-03-09 08:09:58 +01:00
fault.c	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
highmem.c	microblaze: Highmem support	2012-03-23 09:28:13 +01:00
init.c	microblaze: Improve TLB calculation for small systems	2012-03-23 09:28:18 +01:00
Makefile	microblaze: Highmem support	2012-03-23 09:28:13 +01:00
mmu_context.c	microblaze_mmu_v2: Context handling - mmu_context.c/h	2009-05-26 16:45:15 +02:00
pgtable.c	microblaze: Fix mapin_ram function	2012-03-23 09:28:14 +01:00