Hugh Dickins 90ed52ebe4 [PATCH] holepunch: fix mmap_sem i_mutex deadlock ...

sys_madvise has down_write of mmap_sem, then madvise_remove calls
vmtruncate_range which takes i_mutex and i_alloc_sem: no, we can easily devise
deadlocks from that ordering.

madvise_remove drop mmap_sem while calling vmtruncate_range: luckily, since
madvise_remove doesn't split or merge vmas, it's easy to handle this case with
a NULL prev, without restructuring sys_madvise.  (Though sad to retake
mmap_sem when it's unlikely to be needed, and certainly down_read is
sufficient for MADV_REMOVE, unlike the other madvices.)

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-03-29 08:22:26 -07:00

..

allocpercpu.c

[PATCH] Allow NULL pointers in percpu_free

2006-12-07 08:39:22 -08:00

backing-dev.c

[PATCH] nfs: fix congestion control

2007-03-16 19:25:05 -07:00

bootmem.c

[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols

2006-12-07 08:39:44 -08:00

bounce.c

block: blk_max_pfn is somtimes wrong

2007-03-27 08:52:47 +02:00

fadvise.c

[PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path

2006-12-08 08:28:43 -08:00

filemap_xip.c

[PATCH] mm: mremap correct rmap accounting

2007-01-30 08:33:32 -08:00

filemap.c

[PATCH] dio: invalidate clean pages before dio write

2007-03-16 19:25:04 -07:00

filemap.h

Remove all inclusions of <linux/config.h>

2006-10-04 03:38:54 -04:00

fremap.c

[PATCH] mm: more rmap debugging

2006-12-22 08:55:49 -08:00

highmem.c

[PATCH] Use ZVC for free_pages

2007-02-11 10:51:17 -08:00

hugetlb.c

[PATCH] hugetlb: preserve hugetlb pte dirty state

2007-02-09 09:25:46 -08:00

internal.h

[PATCH] mm: VM_BUG_ON

2006-09-26 08:48:44 -07:00

Kconfig

[PATCH] Set CONFIG_ZONE_DMA for arches with GENERIC_ISA_DMA

2007-02-11 10:51:19 -08:00

madvise.c

[PATCH] holepunch: fix mmap_sem i_mutex deadlock

2007-03-29 08:22:26 -07:00

Makefile

[PATCH] separate bdi congestion functions from queue congestion functions

2006-10-20 10:26:35 -07:00

memory_hotplug.c

[PATCH] Fix sparsemem on Cell

2007-01-11 18:18:20 -08:00

memory.c

[PATCH] Add NOPFN_REFAULT result from vm_ops->nopfn()

2007-02-12 09:48:27 -08:00

mempolicy.c

[PATCH] Page migration: Fix vma flag checking

2007-03-05 07:57:51 -08:00

mempool.c

[PATCH] Numerous fixes to kernel-doc info in source files.

2007-02-11 10:51:32 -08:00

migrate.c

[PATCH] Page migration: Fix vma flag checking

2007-03-05 07:57:51 -08:00

mincore.c

[PATCH] mincore: vma crossing fix

2007-02-15 09:57:03 -08:00

mlock.c

[PATCH] mlock cleanup

2006-12-07 08:39:22 -08:00

mmap.c

[PATCH] Bug in MM_RB debugging

2007-03-01 14:53:38 -08:00

mmzone.c

[PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols

2006-12-07 08:39:44 -08:00

mprotect.c

[PATCH] paravirt: lazy mmu mode hooks.patch

2006-10-01 00:39:33 -07:00

mremap.c

[PATCH] mm: mremap correct rmap accounting

2007-01-30 08:33:32 -08:00

msync.c

[PATCH] mm: msync() cleanup

2006-09-26 08:48:45 -07:00

nommu.c

[PATCH] NOMMU: make SYSV SHM nattch work correctly

2007-03-22 19:39:06 -07:00

oom_kill.c

[PATCH] oom fix: prevent oom from killing a process with children/sibling unkillable

2007-03-16 19:25:06 -07:00

page_alloc.c

[PATCH] Rename PG_checked to PG_owner_priv_1

2007-03-01 14:53:37 -08:00

page_io.c

[PATCH] swsusp: use block device offsets to identify swap locations

2006-12-07 08:39:27 -08:00

page-writeback.c

[PATCH] throttle_vm_writeout(): don't loop on GFP_NOFS and GFP_NOIO allocations

2007-03-01 14:53:38 -08:00

pdflush.c

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07 08:39:27 -08:00

prio_tree.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

readahead.c

[PATCH] Drop __get_zone_counts()

2007-02-11 10:51:18 -08:00

rmap.c

[PATCH] adapt page_lock_anon_vma() to PREEMPT_RCU

2007-03-01 14:53:39 -08:00

shmem_acl.c

[PATCH] Fix typos in mm/shmem_acl.c

2006-10-11 11:14:23 -07:00

shmem.c

[PATCH] holepunch: fix disconnected pages after second truncate

2007-03-29 08:22:25 -07:00

slab.c

[PATCH] kernel-doc fixes for 2.6.20-git15 (non-drivers)

2007-03-01 14:53:37 -08:00

slob.c

[PATCH] MM: SLOB is broken by recent cleanup of slab.h

2006-12-30 10:56:42 -08:00

sparse.c

[PATCH] numa node ids are int, page_to_nid and zone_to_nid should return int

2006-12-07 08:39:23 -08:00

swap_state.c

[PATCH] lockdep: locking init debugging improvement

2006-07-03 15:27:02 -07:00

swap.c

[PATCH] hotplug CPU: clean up hotcpu_notifier() use

2006-12-07 08:39:39 -08:00

swapfile.c

[PATCH] swsusp: Do not fail if resume device is not set

2007-01-05 23:55:22 -08:00

thrash.c

[PATCH] make mm/thrash.c:global_faults static

2006-12-07 08:39:22 -08:00

tiny-shmem.c

[PATCH] mm/{,tiny-}shmem.c cleanups

2007-03-01 14:53:35 -08:00

truncate.c

[PATCH] VM: invalidate_inode_pages2_range() should not exit early

2007-03-01 14:53:39 -08:00

util.c

[PATCH] slab: clean up leak tracking ifdefs a little bit

2006-10-04 07:55:13 -07:00

vmalloc.c

[PATCH] Numerous fixes to kernel-doc info in source files.

2007-02-11 10:51:32 -08:00

vmscan.c

[PATCH] throttle_vm_writeout(): don't loop on GFP_NOFS and GFP_NOIO allocations

2007-03-01 14:53:38 -08:00

vmstat.c

[PATCH] optional ZONE_DMA: optional ZONE_DMA in the VM

2007-02-11 10:51:18 -08:00