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
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backing-dev.c
balloon_compaction.c
bootmem.c
bounce.c
cleancache.c
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
fadvise.c
failslab.c
filemap_xip.c
filemap.c
fremap.c	mm: fix bad rss-counter if remap_file_pages raced migration	2014-03-19 16:21:49 -07:00
frontswap.c
highmem.c
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
hugetlb.c
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
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
ksm.c	mm: close PageTail race	2014-03-04 07:55:47 -08:00
list_lru.c
maccess.c
madvise.c
Makefile
memblock.c
memcontrol.c	memcg: reparent charges of children before processing parent	2014-03-04 07:55:48 -08:00
memory_hotplug.c
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
mempool.c
migrate.c	mm: fix swapops.h:131 bug if remap_file_pages raced migration	2014-03-20 22:09:09 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c
oom_kill.c
page_alloc.c	mm: page_alloc: exempt GFP_THISNODE allocations from zone fairness	2014-03-04 07:55:50 -08:00
page_cgroup.c
page_io.c
page_isolation.c
page-writeback.c
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c	mm: fix swapops.h:131 bug if remap_file_pages raced migration	2014-03-20 22:09:09 -07:00
shmem.c
slab_common.c
slab.c
slab.h
slob.c
slub.c
sparse-vmemmap.c
sparse.c
swap_state.c
swap.c	mm: close PageTail race	2014-03-04 07:55:47 -08:00
swapfile.c
truncate.c
util.c
vmalloc.c
vmpressure.c
vmscan.c
vmstat.c
zbud.c
zsmalloc.c
zswap.c