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
..
alpha	mm: kill vma flag VM_RESERVED and mm->reserved_vm counter	2012-10-09 16:22:19 +09:00
arm	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
arm64	Kconfig: clean up the "#if defined(arch)" list for exception-trace sysctl entry	2012-10-09 16:22:14 +09:00
avr32	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
blackfin	Kconfig: clean up the long arch list for the UID16 config option	2012-10-09 16:22:13 +09:00
c6x	Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers	2012-10-07 07:55:10 +09:00
cris	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
frv	Kconfig: clean up the long arch list for the DEBUG_BUGVERBOSE config option	2012-10-09 16:22:14 +09:00
h8300	Kconfig: clean up the long arch list for the UID16 config option	2012-10-09 16:22:13 +09:00
hexagon	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
ia64	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
m32r	Kconfig: clean up the long arch list for the DEBUG_BUGVERBOSE config option	2012-10-09 16:22:14 +09:00
m68k	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
microblaze	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
mips	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
mn10300	cross-arch: don't corrupt personality flags upon exec()	2012-10-06 03:04:47 +09:00
openrisc	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
parisc	mm: replace vma prio_tree with an interval tree	2012-10-09 16:22:39 +09:00
powerpc	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
s390	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
score	Merge branch 'uapi-prep' of git://git.infradead.org/users/dhowells/linux-headers	2012-10-07 07:55:10 +09:00
sh	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
sparc	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
tile	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
um	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
unicore32	mm: kill vma flag VM_RESERVED and mm->reserved_vm counter	2012-10-09 16:22:19 +09:00
x86	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
xtensa	readahead: fault retry breaks mmap file read random detection	2012-10-09 16:22:47 +09:00
.gitignore
Kconfig	thp, x86: introduce HAVE_ARCH_TRANSPARENT_HUGEPAGE	2012-10-09 16:22:29 +09:00