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
..
configs	netfilter: remove xt_NOTRACK	2012-09-03 13:36:40 +02:00
gxio	arch/tile: provide kernel support for the tilegx USB shim	2012-07-18 16:40:24 -04:00
include	mm: hugetlb: add arch hook for clearing page flags before entering pool	2012-10-09 16:22:24 +09:00
kernel	compat: move compat_siginfo_t definition to asm/compat.h	2012-10-06 03:05:16 +09:00
kvm	virtio: expose for non-virtualization users too	2011-07-23 16:20:30 +09:30
lib	arch/tile: break out the "csum a long" function to <asm/checksum.h>	2012-07-11 16:04:57 -04:00
mm	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
Kbuild
Kconfig	Kconfig: clean up the "#if defined(arch)" list for exception-trace sysctl entry	2012-10-09 16:22:14 +09:00
Kconfig.debug	lib: consolidate DEBUG_STACK_USAGE option	2011-05-25 08:39:54 -07:00
Makefile	arch/tile: introduce GXIO IORPC framework for tilegx	2012-07-11 16:04:52 -04:00