Nick Piggin 538f8ea6c8 mm: xip fix fault vs sparse page invalidate race ... XIP has a race between sparse pages being inserted into page tables, and sparse pages being zapped when its time to put a non-sparse page in. What can happen is that a process can be left with a dangling sparse page in a MAP_SHARED mapping, while the rest of the world sees the non-sparse version. Ie. data corruption. Guard these operations with a seqlock, making fault-in-sparse-pages the slowpath, and try-to-unmap-sparse-pages the fastpath. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Jared Hulbert <jaredeh@gmail.com> Acked-by: Carsten Otte <cotte@freenet.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-08-20 15:40:32 -07:00
..
allocpercpu.c	mm/allocpercpu.c: make 4 functions static	2008-07-26 12:00:12 -07:00
backing-dev.c	mm: bdi: fix race in bdi_class device creation	2008-05-20 13:31:53 -07:00
bootmem.c	bootmem: fix aligning of node-relative indexes and offsets	2008-08-20 15:40:31 -07:00
bounce.c
dmapool.c	dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too	2008-04-28 08:58:20 -07:00
fadvise.c	xip: support non-struct page backed memory	2008-04-28 08:58:23 -07:00
filemap.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
filemap_xip.c	mm: xip fix fault vs sparse page invalidate race	2008-08-20 15:40:32 -07:00
fremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
highmem.c	highmem: Export totalhigh_pages.	2008-07-19 22:39:46 -07:00
hugetlb.c	allocate structures for reservation tracking in hugetlbfs outside of spinlocks v2	2008-08-12 16:07:28 -07:00
internal.h	mm: export prep_compound_page to mm	2008-07-24 10:47:17 -07:00
Kconfig	mm: Make generic weak get_user_pages_fast and EXPORT_GPL it	2008-08-12 17:52:53 +10:00
maccess.c	kgdb: fix optional arch functions and probe_kernel_*	2008-04-17 20:05:39 +02:00
madvise.c	madvise: update function comment of madvise_dontneed	2008-07-30 09:41:45 -07:00
Makefile	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
memcontrol.c	memcg: fix oops in mem_cgroup_shrink_usage	2008-08-12 16:07:28 -07:00
memory.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
memory_hotplug.c	memory-hotplug: add sysfs removable attribute for hotplug memory remove	2008-07-24 10:47:21 -07:00
mempolicy.c	do_migrate_pages(): remove unused variable	2008-08-12 16:07:29 -07:00
mempool.c
migrate.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
mincore.c	mm: remove nopage	2008-04-28 08:58:18 -07:00
mlock.c	mlock() fix return values	2008-08-04 16:58:45 -07:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	Merge branch 'core/locking' into core/urgent	2008-08-12 00:11:49 +02:00
mmu_notifier.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mmzone.c	mm: filter based on a nodemask as well as a gfp_mask	2008-04-28 08:58:19 -07:00
mprotect.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
msync.c
nommu.c	nommu: Provide vmalloc_exec().	2008-08-04 16:01:47 +09:00
oom_kill.c	security: Fix setting of PF_SUPERPRIV by __capable()	2008-08-14 22:59:43 +10:00
page-writeback.c	mm: spinlock tree_lock	2008-07-26 12:00:06 -07:00
page_alloc.c	page allocator: use no-panic variant of alloc_bootmem() in alloc_large_system_hash()	2008-08-12 16:07:27 -07:00
page_io.c
page_isolation.c
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
pdflush.c	pdflush: use time_after() instead of open-coding it	2008-07-25 10:53:28 -07:00
prio_tree.c
quicklist.c
readahead.c	mm: readahead scan lockless	2008-07-26 12:00:06 -07:00
rmap.c	mm: dirty page tracking race fix	2008-08-20 15:40:32 -07:00
shmem.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
shmem_acl.c	[PATCH] sanitize ->permission() prototype	2008-07-26 20:53:14 -04:00
slab.c	mm: unexport ksize	2008-07-29 23:44:26 +03:00
slob.c	mm: unexport ksize	2008-07-29 23:44:26 +03:00
slub.c	SLUB: dynamic per-cache MIN_PARTIAL	2008-08-05 09:28:47 +03:00
sparse-vmemmap.c	Christoph has moved	2008-07-04 10:40:04 -07:00
sparse.c	mm/sparse.c: removed duplicated include	2008-08-12 16:07:30 -07:00
swap.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
swap_state.c	mm: show free swap as signed	2008-08-20 15:40:30 -07:00
swapfile.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
thrash.c
tiny-shmem.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2008-03-25 08:57:47 -07:00
truncate.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
util.c	mm: Make generic weak get_user_pages_fast and EXPORT_GPL it	2008-08-12 17:52:53 +10:00
vmalloc.c	Use WARN() in mm/vmalloc.c	2008-07-26 12:00:07 -07:00
vmscan.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
vmstat.c	mm/vmstat.c: proper externs	2008-07-24 10:47:14 -07:00