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Kirill A. Shutemov 48ec833b78 Revert "mm/memory.c: share the i_mmap_rwsem" 
This reverts commit c8475d144abb1e62958cc5ec281d2a9e161c1946.

There are several[1][2] of bug reports which points to this commit as potential
cause[3].

Let's revert it until we figure out what's going on.

[1] https://lkml.org/lkml/2014/11/14/342
[2] https://lkml.org/lkml/2014/12/22/213
[3] https://lkml.org/lkml/2014/12/9/741

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-22 14:27:34 -08:00
..
backing-dev.c
Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block
2014-10-18 11:53:51 -07:00
balloon_compaction.c
mm/balloon_compaction: fix deflation when compaction is disabled
2014-10-29 16:33:15 -07:00
bootmem.c
mem-hotplug: reset node managed pages when hot-adding a new pgdat
2014-11-13 16:17:06 -08:00
cleancache.c
mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE
2014-01-23 16:36:50 -08:00
cma.c
mm: cma: split cma-reserved in dmesg log
2014-12-18 19:08:10 -08:00
compaction.c
mm, compaction: more focused lru and pcplists draining
2014-12-10 17:41:06 -08:00
debug-pagealloc.c
mm/debug-pagealloc: make debug-pagealloc boottime configurable
2014-12-13 12:42:48 -08:00
debug.c
mm: move page->mem_cgroup bad page handling into generic code
2014-12-10 17:41:09 -08:00
dmapool.c
mm/dmapool.c: fixed a brace coding style issue
2014-10-09 22:26:00 -04:00
early_ioremap.c
mm: create generic early_ioremap() support
2014-04-07 16:36:15 -07:00
fadvise.c
mm: fadvise: document the fadvise(FADV_DONTNEED) behaviour for partial pages
2014-12-13 12:42:49 -08:00
failslab.c
switch debugfs to umode_t
2012-01-03 22:54:56 -05:00
filemap_xip.c
mm/xip: share the i_mmap_rwsem
2014-12-13 12:42:45 -08:00
filemap.c
new helper: iter_is_iovec()
2014-12-17 06:43:56 -05:00
fremap.c
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2014-12-15 15:52:01 -08:00
frontswap.c
mm/frontswap.c: fix the condition in BUG_ON
2014-12-10 17:41:08 -08:00
gup.c
kernel: Provide READ_ONCE and ASSIGN_ONCE
2014-12-20 16:48:59 -08:00
highmem.c
mm/highmem: make kmap cache coloring aware
2014-08-06 18:01:22 -07:00
huge_memory.c
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2014-12-15 15:52:01 -08:00
hugetlb_cgroup.c
mm: hugetlb_cgroup: convert to lockless page counters
2014-12-10 17:41:04 -08:00
hugetlb.c
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2014-12-15 15:52:01 -08:00
hwpoison-inject.c
mm/hwpoison-inject.c: remove unnecessary null test before debugfs_remove_recursive
2014-08-06 18:01:19 -07:00
init-mm.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
internal.h
mm, compaction: always update cached scanner positions
2014-12-10 17:41:06 -08:00
interval_tree.c
mm: convert a few VM_BUG_ON callers to VM_BUG_ON_VMA
2014-10-09 22:25:57 -04:00
iov_iter.c
copy_from_iter_nocache()
2014-12-08 20:25:23 -05:00
Kconfig
mm/balloon_compaction: add vmstat counters and kpageflags bit
2014-10-09 22:26:01 -04:00
Kconfig.debug
mm/debug-pagealloc: prepare boottime configurable on/off
2014-12-13 12:42:48 -08:00
kmemcheck.c
mm/slab_common: move kmem_cache definition to internal header
2014-10-09 22:25:50 -04:00
kmemleak-test.c
mm/kmemleak-test.c: use pr_fmt for logging
2014-06-06 16:08:18 -07:00
kmemleak.c
mm: introduce kmemleak_update_trace()
2014-06-06 16:08:17 -07:00
ksm.c
mmu_notifier: call mmu_notifier_invalidate_range() from VMM
2014-11-13 13:46:09 +11:00
list_lru.c
mm: keep page cache radix tree nodes in check
2014-04-03 16:21:01 -07:00
maccess.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
madvise.c
VFS: Rename do_fallocate() to vfs_fallocate()
2014-11-07 16:17:44 -05:00
Makefile
mm/page_owner: keep track of page owners
2014-12-13 12:42:48 -08:00
memblock.c
mm/memblock.c: refactor functions to set/clear MEMBLOCK_HOTPLUG
2014-12-13 12:42:46 -08:00
memcontrol.c
mm/memcontrol.c: remove unused mem_cgroup_lru_names_not_uptodate()
2014-12-13 12:42:49 -08:00
memory_hotplug.c
mm, memory_hotplug/failure: drain single zone pcplists
2014-12-10 17:41:05 -08:00
memory-failure.c
mm: vmscan: invoke slab shrinkers from shrink_zone()
2014-12-13 12:42:48 -08:00
memory.c
Revert "mm/memory.c: share the i_mmap_rwsem"
2014-12-22 14:27:34 -08:00
mempolicy.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-12-19 18:19:19 -08:00
mempool.c
mm/mempool.c: update the kmemleak stack trace for mempool allocations
2014-06-06 16:08:17 -07:00
migrate.c
vm_area_operations: kill ->migrate()
2014-12-17 08:26:51 -05:00
mincore.c
mm: mincore: add hwpoison page handle
2014-12-13 12:42:46 -08:00
mlock.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 15:44:12 +02:00
mm_init.c
mm: bring back /sys/kernel/mm
2014-01-27 21:02:39 -08:00
mmap.c
mm: export find_extend_vma() and handle_mm_fault() for driver use
2014-12-13 12:42:47 -08:00
mmu_context.c
sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm
2014-02-21 08:50:17 +01:00
mmu_notifier.c
mmu_notifier: add the callback for mmu_notifier_invalidate_range()
2014-11-13 13:46:09 +11:00
mmzone.c
mm: numa: Change page last {nid,pid} into {cpu,pid}
2013-10-09 14:47:45 +02:00
mprotect.c
mm: softdirty: enable write notifications on VMAs after VM_SOFTDIRTY cleared
2014-10-14 02:18:28 +02:00
mremap.c
Merge git://git.kvack.org/~bcrl/aio-next
2014-12-14 13:36:57 -08:00
msync.c
msync: fix incorrect fstart calculation
2014-07-03 09:21:53 -07:00
nobootmem.c
mem-hotplug: reset node managed pages when hot-adding a new pgdat
2014-11-13 16:17:06 -08:00
nommu.c
mm/nommu: use alloc_pages_exact() rather than its own implementation
2014-12-13 12:42:48 -08:00
oom_kill.c
oom: kill the insufficient and no longer needed PT_TRACE_EXIT check
2014-12-13 12:42:49 -08:00
page_alloc.c
mm: cma: split cma-reserved in dmesg log
2014-12-18 19:08:10 -08:00
page_counter.c
mm: memcontrol: remove obsolete kmemcg pinning tricks
2014-12-10 17:41:05 -08:00
page_ext.c
mm/page_owner: keep track of page owners
2014-12-13 12:42:48 -08:00
page_io.c
fix __swap_writepage() compile failure on old gcc versions
2014-06-14 19:30:48 -05:00
page_isolation.c
mm, page_isolation: drain single zone pcplists
2014-12-10 17:41:05 -08:00
page_owner.c
mm/page_owner: correct owner information for early allocated pages
2014-12-13 12:42:48 -08:00
page-writeback.c
mm, memcg: fix potential undefined behaviour in page stat accounting
2014-12-10 17:41:08 -08:00
pagewalk.c
mm: use VM_BUG_ON_MM where possible
2014-10-09 22:25:58 -04:00
percpu-km.c
percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated
2014-09-02 14:46:05 -04:00
percpu-vm.c
percpu: move region iterations out of pcpu_[de]populate_chunk()
2014-09-02 14:46:02 -04:00
percpu.c
percpu: off by one in BUG_ON()
2014-10-29 10:34:34 -04:00
pgtable-generic.c
mm: actually clear pmd_numa before invalidating
2014-08-29 16:28:15 -07:00
process_vm_access.c
start adding the tag to iov_iter
2014-05-06 17:32:49 -04:00
quicklist.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
readahead.c
mm/readahead.c: remove unused file_ra_state from count_history_pages
2014-08-06 18:01:15 -07:00
rmap.c
kernel: Provide READ_ONCE and ASSIGN_ONCE
2014-12-20 16:48:59 -08:00
shmem.c
new helper: iter_is_iovec()
2014-12-17 06:43:56 -05:00
slab_common.c
memcg: use generic slab iterators for showing slabinfo
2014-12-10 17:41:07 -08:00
slab.c
slab: fix cpuset check in fallback_alloc
2014-12-13 12:42:53 -08:00
slab.h
memcg: use generic slab iterators for showing slabinfo
2014-12-10 17:41:07 -08:00
slob.c
mm/sl[ao]b: always track caller in kmalloc_(node_)track_caller()
2014-10-09 22:25:50 -04:00
slub.c
slub: fix cpuset check in get_any_partial
2014-12-13 12:42:53 -08:00
sparse-vmemmap.c
mm/sparse: use memblock apis for early memory allocations
2014-01-21 16:19:47 -08:00
sparse.c
mm: use macros from compiler.h instead of __attribute__((...))
2014-04-07 16:35:54 -07:00
swap_cgroup.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
swap_state.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
swap.c
mm: memcontrol: do not kill uncharge batching in free_pages_and_swap_cache
2014-10-09 22:25:59 -04:00
swapfile.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
truncate.c
mm: Fix comment before truncate_setsize()
2014-11-07 08:29:25 +11:00
util.c
proc/maps: make vm_is_stack() logic namespace-friendly
2014-10-09 22:25:50 -04:00
vmacache.c
mm,vmacache: count number of system-wide flushes
2014-12-13 12:42:48 -08:00
vmalloc.c
mm/vmalloc.c: fix memory ordering bug
2014-12-13 12:42:49 -08:00
vmpressure.c
mm/vmpressure.c: fix race in vmpressure_work_fn()
2014-12-02 17:32:07 -08:00
vmscan.c
mm: vmscan: invoke slab shrinkers from shrink_zone()
2014-12-13 12:42:48 -08:00
vmstat.c
mm,vmacache: count number of system-wide flushes
2014-12-13 12:42:48 -08:00
workingset.c
mm: keep page cache radix tree nodes in check
2014-04-03 16:21:01 -07:00
zbud.c
mm/zbud: init user ops only when it is needed
2014-12-13 12:42:51 -08:00
zpool.c
mm/zpool: use prefixed module loading
2014-08-29 16:28:16 -07:00
zsmalloc.c
mm/zsmalloc: adjust order of functions
2014-12-18 19:08:11 -08:00
zswap.c
mm/zswap: delete unnecessary check before calling free_percpu()
2014-12-13 12:42:50 -08:00