Hugh Dickins 7e09e738af mm: fix swapops.h:131 bug if remap_file_pages raced migration ... Add remove_linear_migration_ptes_from_nonlinear(), to fix an interesting little include/linux/swapops.h:131 BUG_ON(!PageLocked) found by trinity: indicating that remove_migration_ptes() failed to find one of the migration entries that was temporarily inserted. The problem comes from remap_file_pages()'s switch from vma_interval_tree (good for inserting the migration entry) to i_mmap_nonlinear list (no good for locating it again); but can only be a problem if the remap_file_pages() range does not cover the whole of the vma (zap_pte() clears the range). remove_migration_ptes() needs a file_nonlinear method to go down the i_mmap_nonlinear list, applying linear location to look for migration entries in those vmas too, just in case there was this race. The file_nonlinear method does need rmap_walk_control.arg to do this; but it never needed vma passed in - vma comes from its own iteration. Reported-and-tested-by: Dave Jones <davej@redhat.com> Reported-and-tested-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-03-20 22:09:09 -07:00
..
backing-dev.c	mm/backing-dev.c: check user buffer length before copying data to the related user buffer	2013-09-11 15:58:03 -07:00
balloon_compaction.c	mm: print more details for bad_page()	2014-01-23 16:36:50 -08:00
bootmem.c	mm/bootmem.c: remove unused local `map'	2013-11-13 12:09:09 +09:00
bounce.c	block: Convert bio_for_each_segment() to bvec_iter	2013-11-23 22:33:49 -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
compaction.c	mm/compaction: break out of loop on !PageBuddy in isolate_freepages_block	2014-03-10 17:26:20 -07:00
debug-pagealloc.c
dmapool.c	dmapool: make DMAPOOL_DEBUG detect corruption of free marker	2012-12-11 17:22:24 -08:00
fadvise.c	teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long	2013-03-03 22:46:22 -05:00
failslab.c
filemap_xip.c	seqcount: Add lockdep functionality to seqcount/seqlock structures	2013-11-06 12:40:26 +01:00
filemap.c	fix O_SYNC|O_APPEND syncing the wrong range on write()	2014-02-09 15:18:09 -05:00
fremap.c	mm: fix bad rss-counter if remap_file_pages raced migration	2014-03-19 16:21:49 -07:00
frontswap.c	frontswap: fix incorrect zeroing and allocation size for frontswap_map	2013-06-12 16:29:46 -07:00
highmem.c	Some nice cleanups, and even a patch my wife did as a "live" demo for	2012-12-20 08:37:05 -08:00
huge_memory.c	mm: include VM_MIXEDMAP flag in the VM_SPECIAL list to avoid m(un)locking	2014-03-04 07:55:48 -08:00
hugetlb_cgroup.c	mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE	2014-01-23 16:36:50 -08:00
hugetlb.c	mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE	2014-01-23 16:36:50 -08:00
hwpoison-inject.c	mm/hwpoison: add '#' to hwpoison_inject	2014-01-21 16:19:48 -08:00
init-mm.c
internal.h	mm/page-writeback.c: do not count anon pages as dirtyable memory	2014-01-29 16:22:39 -08:00
interval_tree.c	mm: add CONFIG_DEBUG_VM_RB build option	2012-10-09 16:22:42 +09:00
Kconfig	mm/Kconfig: fix URL for zsmalloc benchmark	2014-03-10 17:26:20 -07:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: kmemleak: avoid false negatives on vmalloc'ed objects	2013-11-13 12:09:07 +09:00
ksm.c	mm: close PageTail race	2014-03-04 07:55:47 -08:00
list_lru.c	mm: list_lru: fix almost infinite loop causing effective livelock	2013-10-30 12:57:46 -07:00
maccess.c
madvise.c	mm/hwpoison: fix traversal of hugetlbfs pages to avoid printk flood	2013-09-30 14:31:02 -07:00
Makefile	zsmalloc: move it under mm	2014-01-30 16:56:55 -08:00
memblock.c	memblock: add limit checking to memblock_virt_alloc	2014-01-29 16:22:40 -08:00
memcontrol.c	memcg: reparent charges of children before processing parent	2014-03-04 07:55:48 -08:00
memory_hotplug.c	mm/memory_hotplug.c: move register_memory_resource out of the lock_memory_hotplug	2014-01-23 16:36:52 -08:00
memory-failure.c	mm: close PageTail race	2014-03-04 07:55:47 -08:00
memory.c	mm, thp: fix infinite loop on memcg OOM	2014-02-25 15:25:44 -08:00
mempolicy.c	mm/mempolicy.c: fix mempolicy printing in numa_maps	2014-01-30 16:56:56 -08:00
mempool.c	mm/mempool.c: convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)	2013-09-11 15:58:14 -07:00
migrate.c	mm: fix swapops.h:131 bug if remap_file_pages raced migration	2014-03-20 22:09:09 -07:00
mincore.c	mm: do_mincore() cleanup	2014-01-23 16:36:52 -08:00
mlock.c	mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE	2014-01-23 16:36:50 -08:00
mm_init.c	mm: bring back /sys/kernel/mm	2014-01-27 21:02:39 -08:00
mmap.c	mm: ignore VM_SOFTDIRTY on VMA merging	2014-01-23 16:36:53 -08:00
mmu_context.c	mm: remove old aio use_mm() comment	2013-05-07 18:38:27 -07:00
mmu_notifier.c	mm: audit/fix non-modular users of module_init in core code	2014-01-23 16:36:52 -08:00
mmzone.c	mm: numa: Change page last {nid,pid} into {cpu,pid}	2013-10-09 14:47:45 +02:00
mprotect.c	mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit	2014-02-17 11:19:36 +11:00
mremap.c	mm: revert mremap pud_free anti-fix	2013-10-16 21:35:53 -07:00
msync.c
nobootmem.c	mm/nobootmem: free_all_bootmem again	2014-01-23 16:36:52 -08:00
nommu.c	mm: add overcommit_kbytes sysctl variable	2014-01-21 16:19:44 -08:00
oom_kill.c	mm, oom: base root bonus on current usage	2014-01-30 16:56:56 -08:00
page_alloc.c	mm: page_alloc: exempt GFP_THISNODE allocations from zone fairness	2014-03-04 07:55:50 -08:00
page_cgroup.c	Merge branch 'akpm' (incoming from Andrew)	2014-01-21 19:05:45 -08:00
page_io.c	Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block	2014-01-30 11:19:05 -08:00
page_isolation.c	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
page-writeback.c	mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()	2014-02-06 13:48:51 -08:00
pagewalk.c	mm/pagewalk.c: fix walk_page_range() access of wrong PTEs	2013-10-30 14:27:03 -07:00
percpu-km.c
percpu-vm.c
percpu.c	Merge branch 'akpm' (incoming from Andrew)	2014-01-21 19:05:45 -08:00
pgtable-generic.c	mm: fix TLB flush race between migration, and change_protection_range	2013-12-18 19:04:51 -08:00
process_vm_access.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-12 11:05:45 -07:00
quicklist.c
readahead.c	mm/readahead.c: fix do_readahead() for no readpage(s)	2014-01-29 16:22:40 -08:00
rmap.c	mm: fix swapops.h:131 bug if remap_file_pages raced migration	2014-03-20 22:09:09 -07:00
shmem.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-01-28 08:38:04 -08:00
slab_common.c	slab: fix wrong retval on kmem_cache_create_memcg error path	2014-01-29 16:22:40 -08:00
slab.c	mm: Fix warning on make htmldocs caused by slab.c	2014-01-31 13:52:25 +02:00
slab.h	memcg, slab: RCU protect memcg_params for root caches	2014-01-23 16:36:51 -08:00
slob.c	mm/sl[aou]b: Move kmallocXXX functions to common code	2013-09-04 20:51:33 +03:00
slub.c	slub: do not assert not having lock in removing freed partial	2014-02-10 16:01:42 -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/sparse: use memblock apis for early memory allocations	2014-01-21 16:19:47 -08:00
swap_state.c	swap: add a simple detector for inappropriate swapin readahead	2014-02-06 13:48:51 -08:00
swap.c	mm: close PageTail race	2014-03-04 07:55:47 -08:00
swapfile.c	mm/swap: fix race on swap_info reuse between swapoff and swapon	2014-02-06 13:48:51 -08:00
truncate.c	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
util.c	mm: add overcommit_kbytes sysctl variable	2014-01-21 16:19:44 -08:00
vmalloc.c	Revert "mm/vmalloc: interchage the implementation of vmalloc_to_{pfn,page}"	2014-01-27 21:02:39 -08:00
vmpressure.c	arm, pm, vmpressure: add missing slab.h includes	2014-02-03 13:24:01 -05:00
vmscan.c	mm/page-writeback.c: do not count anon pages as dirtyable memory	2014-01-29 16:22:39 -08:00
vmstat.c	mm, x86: Account for TLB flushes only when debugging	2014-01-25 09:10:41 +01:00
zbud.c	mm/zbud: fix some trivial typos in comments	2013-09-11 15:57:35 -07:00
zsmalloc.c	zsmalloc: add copyright	2014-01-30 16:56:55 -08:00
zswap.c	mm/zswap.c: change params from hidden to ro	2014-01-23 16:36:50 -08:00