Nick Piggin 14bac5acfd mm: xip/ext2 fix block allocation race ... XIP can call into get_xip_mem concurrently with the same file,offset with create=1. This usually maps down to get_block, which expects the page lock to prevent such a situation. This causes ext2 to explode for one reason or another. Serialise those calls for the moment. For common usages today, I suspect get_xip_mem rarely is called to create new blocks. In future as XIP technologies evolve we might need to look at which operations require scalability, and rework the locking to suit. 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
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Kconfig	mm: Make generic weak get_user_pages_fast and EXPORT_GPL it	2008-08-12 17:52:53 +10:00
Makefile	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
allocpercpu.c	mm/allocpercpu.c: make 4 functions static	2008-07-26 12:00:12 -07:00
backing-dev.c	…
bootmem.c	bootmem: fix aligning of node-relative indexes and offsets	2008-08-20 15:40:31 -07:00
bounce.c	…
dmapool.c	…
fadvise.c	…
filemap.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
filemap_xip.c	mm: xip/ext2 fix block allocation race	2008-08-20 15:40:32 -07:00
fremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
highmem.c	…
hugetlb.c	allocate structures for reservation tracking in hugetlbfs outside of spinlocks v2	2008-08-12 16:07:28 -07:00
internal.h	…
maccess.c	…
madvise.c	madvise: update function comment of madvise_dontneed	2008-07-30 09:41:45 -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	…
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	…
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	…
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	…
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	…
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	…