Al Viro cd2934a3b3 flush_tlb_range() needs ->page_table_lock when ->mmap_sem is not held ...

All other callers already hold either ->mmap_sem (exclusive) or
->page_table_lock.  And we need it because some page table flushing
instanced do work explicitly with ge tables.

See e.g.  arch/powerpc/mm/tlb_hash32.c, flush_tlb_range() and
flush_range() in there.  The same goes for uml, with a lot more
extensive playing with page tables.

Almost all callers are actually fine - flush_tlb_range() may have no
need to bother playing with page tables, but it can do so safely; again,
this caller is the sole exception - everything else either has exclusive
->mmap_sem on the mm in question, or mm->page_table_lock is held.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2012-03-05 13:51:32 -08:00

..

backing-dev.c

backing-dev: fix wakeup timer races with bdi_unregister()

2012-02-01 16:52:49 +08:00

bootmem.c

mm: bootmem: try harder to free pages in bulk

2012-01-10 16:30:45 -08:00

bounce.c

…

cleancache.c

…

compaction.c

mm: compaction: check for overlapping nodes during isolation for migration

2012-02-08 19:03:51 -08:00

debug-pagealloc.c

mm, x86: Remove debug_pagealloc_enabled

2011-12-06 09:24:07 +01:00

dmapool.c

…

fadvise.c

fadvise: only initiate writeback for specified range with FADV_DONTNEED

2012-01-10 16:30:43 -08:00

failslab.c

switch debugfs to umode_t

2012-01-03 22:54:56 -05:00

filemap_xip.c

mm/filemap_xip.c: fix race condition in xip_file_fault()

2012-02-03 16:16:41 -08:00

filemap.c

readahead: fix pipeline break caused by block plug

2012-02-03 16:16:41 -08:00

fremap.c

…

highmem.c

…

huge_memory.c

mm: fix UP THP spin_is_locked BUGs

2012-02-08 19:03:51 -08:00

hugetlb.c

flush_tlb_range() needs ->page_table_lock when ->mmap_sem is not held

2012-03-05 13:51:32 -08:00

hwpoison-inject.c

…

init-mm.c

…

internal.h

…

Kconfig

Merge branch 'master' into x86/memblock

2011-11-28 09:46:22 -08:00

Kconfig.debug

mm: more intensive memory corruption debugging

2012-01-10 16:30:42 -08:00

kmemcheck.c

…

kmemleak-test.c

…

kmemleak.c

kmemleak: Disable early logging when kmemleak is off by default

2012-01-20 16:57:05 +00:00

ksm.c

memcg: clear pc->mem_cgroup if necessary.

2012-01-12 20:13:07 -08:00

maccess.c

…

madvise.c

…

Makefile

…

memblock.c

memblock: Fix size aligning of memblock_alloc_base_nid()

2012-03-01 10:53:18 +01:00

memcontrol.c

mm: memcg: Correct unregistring of events attached to the same eventfd

2012-02-24 08:55:51 -08:00

memory_hotplug.c

mm: compaction: introduce sync-light migration for use by compaction

2012-01-12 20:13:09 -08:00

memory-failure.c

mm: compaction: introduce sync-light migration for use by compaction

2012-01-12 20:13:09 -08:00

memory.c

mm: fix rss count leakage during migration

2012-01-23 08:38:49 -08:00

mempolicy.c

mm: compaction: introduce sync-light migration for use by compaction

2012-01-12 20:13:09 -08:00

mempool.c

mempool: fix first round failure behavior

2012-01-10 16:30:45 -08:00

migrate.c

mm: postpone migrated page mapping reset

2012-02-03 16:16:40 -08:00

mincore.c

…

mlock.c

…

mm_init.c

…

mmap.c

VM_GROWS{UP,DOWN} shouldn't be set on shmem VMAs

2012-03-05 13:51:32 -08:00

mmu_context.c

…

mmu_notifier.c

…

mmzone.c

…

mprotect.c

…

mremap.c

mremap: enforce rmap src/dst vma ordering in case of vma_merge() succeeding in copy_vma()

2012-01-10 16:30:44 -08:00

msync.c

…

nobootmem.c

Merge branch 'master' into x86/memblock

2011-11-28 09:46:22 -08:00

nommu.c

NOMMU: Don't need to clear vm_mm when deleting a VMA

2012-02-24 08:59:04 -08:00

oom_kill.c

mm: unify remaining mem_cont, mem, etc. variable names to memcg

2012-01-12 20:13:06 -08:00

page_alloc.c

vfs: fix panic in __d_lookup() with high dentry hashtable counts

2012-02-13 20:45:38 -05:00

page_cgroup.c

page_cgroup: drop multi CONFIG_MEMORY_HOTPLUG

2012-01-12 20:13:08 -08:00

page_io.c

…

page_isolation.c

…

page-writeback.c

Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux

2012-01-10 16:59:59 -08:00

pagewalk.c

…

percpu-km.c

…

percpu-vm.c

percpu: fix chunk range calculation

2011-11-22 08:09:46 -08:00

percpu.c

Kmemleak patches

2012-01-14 18:11:11 -08:00

pgtable-generic.c

…

prio_tree.c

…

process_vm_access.c

Fix race in process_vm_rw_core

2012-02-02 12:55:17 -08:00

quicklist.c

…

readahead.c

…

rmap.c

mm: unify remaining mem_cont, mem, etc. variable names to memcg

2012-01-12 20:13:06 -08:00

shmem.c

SHM_UNLOCK: fix Unevictable pages stranded after swap

2012-01-23 08:38:48 -08:00

slab.c

Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux

2012-01-11 18:52:23 -08:00

slob.c

…

slub.c

mm,x86,um: move CMPXCHG_DOUBLE config option

2012-01-12 20:13:03 -08:00

sparse-vmemmap.c

…

sparse.c

…

swap_state.c

memcg: clear pc->mem_cgroup if necessary.

2012-01-12 20:13:07 -08:00

swap.c

mm: fix UP THP spin_is_locked BUGs

2012-02-08 19:03:51 -08:00

swapfile.c

mm: unify remaining mem_cont, mem, etc. variable names to memcg

2012-01-12 20:13:06 -08:00

thrash.c

…

truncate.c

…

util.c

…

vmalloc.c

mm/vmalloc.c: eliminate extra loop in pcpu_get_vm_areas error path

2012-01-12 20:13:10 -08:00

vmscan.c

SHM_UNLOCK: fix Unevictable pages stranded after swap

2012-01-23 08:38:48 -08:00

vmstat.c

mm,x86,um: move CMPXCHG_LOCAL config option

2012-01-12 20:13:03 -08:00