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
..
elf.c	mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file	2012-10-09 16:22:18 +09:00
extable.c
fault.c	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
highmem.c	tile: remove usage of enum km_type	2012-07-23 14:11:23 +08:00
homecache.c	tilegx pci: support I/O to arbitrarily-cached pages	2012-07-18 16:40:05 -04:00
hugetlbpage.c	arch/tile: support multiple huge page sizes dynamically	2012-05-25 12:48:27 -04:00
init.c	arch/tile: enable ZONE_DMA for tilegx	2012-07-18 16:40:11 -04:00
Makefile
migrate_32.S	arch/tile: use interrupt critical sections less	2012-05-25 12:48:20 -04:00
migrate_64.S	arch/tile: use interrupt critical sections less	2012-05-25 12:48:20 -04:00
migrate.h	arch/tile: use interrupt critical sections less	2012-05-25 12:48:20 -04:00
mmap.c
pgtable.c	arch/tile: tilegx PCI root complex support	2012-07-18 16:39:11 -04:00