Nick Piggin 787d2214c1 fs: introduce some page/buffer invariants ... It is a bug to set a page dirty if it is not uptodate unless it has buffers. If the page has buffers, then the page may be dirty (some buffers dirty) but not uptodate (some buffers not uptodate). The exception to this rule is if the set_page_dirty caller is racing with truncate or invalidate. A buffer can not be set dirty if it is not uptodate. If either of these situations occurs, it indicates there could be some data loss problem. Some of these warnings could be a harmless one where the page or buffer is set uptodate immediately after it is dirtied, however we should fix those up, and enforce this ordering. Bring the order of operations for truncate into line with those of invalidate. This will prevent a page from being able to go !uptodate while we're holding the tree_lock, which is probably a good thing anyway. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-07-17 10:23:02 -07:00
..
allocpercpu.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	2007-07-17 10:23:02 -07:00
backing-dev.c	remove mm/backing-dev.c:congestion_wait_interruptible()	2007-07-16 09:05:52 -07:00
bootmem.c	[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols	2006-12-07 08:39:44 -08:00
bounce.c	block: blk_max_pfn is somtimes wrong	2007-03-27 08:52:47 +02:00
fadvise.c	[PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path	2006-12-08 08:28:43 -08:00
filemap_xip.c	xip sendfile removal	2007-07-10 08:04:15 +02:00
filemap.c	Fix read/truncate race	2007-07-17 10:22:59 -07:00
filemap.h	Remove all inclusions of <linux/config.h>	2006-10-04 03:38:54 -04:00
fremap.c	[PATCH] mm: more rmap debugging	2006-12-22 08:55:49 -08:00
highmem.c	Create the ZONE_MOVABLE zone	2007-07-17 10:22:59 -07:00
hugetlb.c	MM: Make needlessly global hugetlb_no_page() static.	2007-07-17 10:23:02 -07:00
internal.h	Make page->private usable in compound pages	2007-05-07 12:12:53 -07:00
Kconfig	Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6	2007-07-16 10:32:02 -07:00
madvise.c	speed up madvise_need_mmap_write() usage	2007-07-16 09:05:36 -07:00
Makefile	Quicklists for page table pages	2007-05-07 12:12:54 -07:00
memory_hotplug.c	memory hotplug: fix unnecessary calling of init_currenty_empty_zone()	2007-06-01 08:18:29 -07:00
memory.c	Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated	2007-07-17 10:22:59 -07:00
mempolicy.c	Allow huge page allocations to use GFP_HIGH_MOVABLE	2007-07-17 10:22:59 -07:00
mempool.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	2007-07-17 10:23:02 -07:00
migrate.c	Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated	2007-07-17 10:22:59 -07:00
mincore.c	[PATCH] mincore: vma crossing fix	2007-02-15 09:57:03 -08:00
mlock.c	do not limit locked memory when RLIMIT_MEMLOCK is RLIM_INFINITY	2007-07-16 09:05:37 -07:00
mmap.c	split mmap	2007-07-16 09:05:37 -07:00
mmzone.c	[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols	2006-12-07 08:39:44 -08:00
mprotect.c	[PATCH] paravirt: lazy mmu mode hooks.patch	2006-10-01 00:39:33 -07:00
mremap.c	security: Protection for exploiting null dereference using mmap	2007-07-11 22:52:29 -04:00
msync.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
nommu.c	nommu: stub expand_stack() for nommu case	2007-07-16 09:05:37 -07:00
oom_kill.c	oom: fix constraint deadlock	2007-05-07 12:12:55 -07:00
page_alloc.c	Lumpy Reclaim V4	2007-07-17 10:22:59 -07:00
page_io.c	[PATCH] swsusp: use block device offsets to identify swap locations	2006-12-07 08:39:27 -08:00
page-writeback.c	fs: introduce some page/buffer invariants	2007-07-17 10:23:02 -07:00
pdflush.c	[PATCH] Add include/linux/freezer.h and move definitions from sched.h	2006-12-07 08:39:27 -08:00
prio_tree.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
quicklist.c	Quicklists for page table pages	2007-05-07 12:12:54 -07:00
readahead.c	readahead: code cleanup	2007-05-07 12:12:52 -07:00
rmap.c	mm: kill validate_anon_vma to avoid mapcount BUG	2007-06-28 11:34:53 -07:00
shmem_acl.c	[PATCH] Fix typos in mm/shmem_acl.c	2006-10-11 11:14:23 -07:00
shmem.c	Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated	2007-07-17 10:22:59 -07:00
slab.c	Slab allocators: Cleanup zeroing allocations	2007-07-17 10:23:01 -07:00
slob.c	Slab allocators: Cleanup zeroing allocations	2007-07-17 10:23:01 -07:00
slub.c	SLUB: Fix CONFIG_SLUB_DEBUG use for CONFIG_NUMA	2007-07-17 10:23:02 -07:00
sparse.c	Move three functions that are only needed for CONFIG_MEMORY_HOTPLUG	2007-06-08 17:23:33 -07:00
swap_state.c	Add __GFP_MOVABLE for callers to flag allocations from high memory that may be migrated	2007-07-17 10:22:59 -07:00
swap.c	Add suspend-related notifications for CPU hotplug	2007-05-09 12:30:56 -07:00
swapfile.c	vmscan: fix comments related to shrink_list()	2007-07-16 09:05:35 -07:00
thrash.c	Bug in mm/thrash.c function grab_swap_token()	2007-05-11 08:29:32 -07:00
tiny-shmem.c	[PATCH] mm/{,tiny-}shmem.c cleanups	2007-03-01 14:53:35 -08:00
truncate.c	fs: introduce some page/buffer invariants	2007-07-17 10:23:02 -07:00
util.c	Slab allocators: Cleanup zeroing allocations	2007-07-17 10:23:01 -07:00
vmalloc.c	Slab allocators: Replace explicit zeroing with __GFP_ZERO	2007-07-17 10:23:02 -07:00
vmscan.c	mm: clean up and kernelify shrinker registration	2007-07-17 10:23:00 -07:00
vmstat.c	Create the ZONE_MOVABLE zone	2007-07-17 10:22:59 -07:00