forked from Minki/linux
45cac65b0f
.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> |
||
|---|---|---|
| .. | ||
| alignment.c | ||
| asids-debugfs.c | ||
| cache-debugfs.c | ||
| cache-sh2.c | ||
| cache-sh2a.c | ||
| cache-sh3.c | ||
| cache-sh4.c | ||
| cache-sh5.c | ||
| cache-sh7705.c | ||
| cache-shx3.c | ||
| cache.c | ||
| consistent.c | ||
| extable_32.c | ||
| extable_64.c | ||
| fault.c | ||
| flush-sh4.c | ||
| gup.c | ||
| hugetlbpage.c | ||
| init.c | ||
| ioremap_fixed.c | ||
| ioremap.c | ||
| Kconfig | ||
| kmap.c | ||
| Makefile | ||
| mmap.c | ||
| nommu.c | ||
| numa.c | ||
| pgtable.c | ||
| pmb.c | ||
| sram.c | ||
| tlb-debugfs.c | ||
| tlb-pteaex.c | ||
| tlb-sh3.c | ||
| tlb-sh4.c | ||
| tlb-sh5.c | ||
| tlb-urb.c | ||
| tlbex_32.c | ||
| tlbex_64.c | ||
| tlbflush_32.c | ||
| tlbflush_64.c | ||
| uncached.c | ||