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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>		13 years ago
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Makefile	arch/tile: core support for Tilera 32-bit chips.	15 years ago
elf.c	mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file	13 years ago
extable.c	arch/tile: core support for Tilera 32-bit chips.	15 years ago
fault.c	readahead: fault retry breaks mmap file read random detection	13 years ago
highmem.c	tile: remove usage of enum km_type	13 years ago
homecache.c	tilegx pci: support I/O to arbitrarily-cached pages	13 years ago
hugetlbpage.c	arch/tile: support multiple huge page sizes dynamically	13 years ago
init.c	arch/tile: enable ZONE_DMA for tilegx	13 years ago
migrate.h	arch/tile: use interrupt critical sections less	13 years ago
migrate_32.S	arch/tile: use interrupt critical sections less	13 years ago
migrate_64.S	arch/tile: use interrupt critical sections less	13 years ago
mmap.c	arch/tile: core support for Tilera 32-bit chips.	15 years ago
pgtable.c	arch/tile: tilegx PCI root complex support	13 years ago