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  1. 18 May, 2014 21 commits
  3. 30 Apr, 2014 19 commits
    • Ben Hutchings's avatar
      Linux 3.2.58 · f453538a
      Ben Hutchings authored
      f453538a
    • Ben Hutchings's avatar
      Revert "isci: fix reset timeout handling" · 2e59f013
      Ben Hutchings authored 
      This reverts commit 584ec122, which
was commit ddfadd77 upstream.  It
causes boot failure on 3.2 although no such problem occurs upstream.
Reported-by: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
Acked-by: default avatarDan Williams <dan.j.williams@intel.com>
      2e59f013
    • Ben Hutchings's avatar
      Revert "alpha: fix broken network checksum" · 53119558
      Ben Hutchings authored 
      This reverts commit b93b90ff, which
was commit 0ef38d70 upstream.
It was intended to fix a regression which never occurred in 3.2.
      53119558
    • Mikulas Patocka's avatar
      powernow-k6: reorder frequencies · 3d793c47
      Mikulas Patocka authored 
      commit 22c73795 upstream.

This patch reorders reported frequencies from the highest to the lowest,
just like in other frequency drivers.
Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
[bwh: Backported to 3.2: cpu_frequency_table::driver_data is called index]
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      3d793c47
    • Mikulas Patocka's avatar
      powernow-k6: correctly initialize default parameters · 133eadd5
      Mikulas Patocka authored 
      commit d82b922a upstream.

The powernow-k6 driver used to read the initial multiplier from the
powernow register. However, there is a problem with this:

* If there was a frequency transition before, the multiplier read from the
  register corresponds to the current multiplier.
* If there was no frequency transition since reset, the field in the
  register always reads as zero, regardless of the current multiplier that
  is set using switches on the mainboard and that the CPU is running at.

The zero value corresponds to multiplier 4.5, so as a consequence, the
powernow-k6 driver always assumes multiplier 4.5.

For example, if we have 550MHz CPU with bus frequency 100MHz and
multiplier 5.5, the powernow-k6 driver thinks that the multiplier is 4.5
and bus frequency is 122MHz. The powernow-k6 driver then sets the
multiplier to 4.5, underclocking the CPU to 450MHz, but reports the
current frequency as 550MHz.

There is no reliable way how to read the initial multiplier. I modified
the driver so that it contains a table of known frequencies (based on
parameters of existing CPUs and some common overclocking schemes) and sets
the multiplier according to the frequency. If the frequency is unknown
(because of unusual overclocking or underclocking), the user must supply
the bus speed and maximum multiplier as module parameters.

This patch should be backported to all stable kernels. If it doesn't
apply cleanly, change it, or ask me to change it.
Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
[bwh: Backported to 3.2:
 - Adjust context
 - s/driver_data/index/]
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      133eadd5
    • Mikulas Patocka's avatar
      powernow-k6: disable cache when changing frequency · f5fe5bb9
      Mikulas Patocka authored 
      commit e20e1d0a upstream.

I found out that a system with k6-3+ processor is unstable during network
server load. The system locks up or the network card stops receiving. The
reason for the instability is the CPU frequency scaling.

During frequency transition the processor is in "EPM Stop Grant" state.
The documentation says that the processor doesn't respond to inquiry
requests in this state. Consequently, coherency of processor caches and
bus master devices is not maintained, causing the system instability.

This patch flushes the cache during frequency transition. It fixes the
instability.

Other minor changes:
* u64 invalue changed to unsigned long because the variable is 32-bit
* move the logic to set the multiplier to a separate function
  powernow_k6_set_cpu_multiplier
* preserve lower 5 bits of the powernow port instead of 4 (the voltage
  field has 5 bits)
* mask interrupts when reading the multiplier, so that the port is not
  open during other activity (running other kernel code with the port open
  shouldn't cause any misbehavior, but we should better be safe and keep
  the port closed)

This patch should be backported to all stable kernels. If it doesn't
apply cleanly, change it, or ask me to change it.
Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      f5fe5bb9
    • Paul Moore's avatar
      selinux: correctly label /proc inodes in use before the policy is loaded · a07089d7
      Paul Moore authored 
      commit f64410ec upstream.

This patch is based on an earlier patch by Eric Paris, he describes
the problem below:

  "If an inode is accessed before policy load it will get placed on a
   list of inodes to be initialized after policy load.  After policy
   load we call inode_doinit() which calls inode_doinit_with_dentry()
   on all inodes accessed before policy load.  In the case of inodes
   in procfs that means we'll end up at the bottom where it does:

     /* Default to the fs superblock SID. */
     isec->sid = sbsec->sid;

     if ((sbsec->flags & SE_SBPROC) && !S_ISLNK(inode->i_mode)) {
             if (opt_dentry) {
                     isec->sclass = inode_mode_to_security_class(...)
                     rc = selinux_proc_get_sid(opt_dentry,
                                               isec->sclass,
                                               &sid);
                     if (rc)
                             goto out_unlock;
                     isec->sid = sid;
             }
     }

   Since opt_dentry is null, we'll never call selinux_proc_get_sid()
   and will leave the inode labeled with the label on the superblock.
   I believe a fix would be to mimic the behavior of xattrs.  Look
   for an alias of the inode.  If it can't be found, just leave the
   inode uninitialized (and pick it up later) if it can be found, we
   should be able to call selinux_proc_get_sid() ..."

On a system exhibiting this problem, you will notice a lot of files in
/proc with the generic "proc_t" type (at least the ones that were
accessed early in the boot), for example:

   # ls -Z /proc/sys/kernel/shmmax | awk '{ print $4 " " $5 }'
   system_u:object_r:proc_t:s0 /proc/sys/kernel/shmmax

However, with this patch in place we see the expected result:

   # ls -Z /proc/sys/kernel/shmmax | awk '{ print $4 " " $5 }'
   system_u:object_r:sysctl_kernel_t:s0 /proc/sys/kernel/shmmax

Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: default avatarPaul Moore <pmoore@redhat.com>
Acked-by: default avatarEric Paris <eparis@redhat.com>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      a07089d7
    • Jiri Slaby's avatar
      Char: ipmi_bt_sm, fix infinite loop · 24b528cb
      Jiri Slaby authored 
      commit a94cdd1f upstream.

In read_all_bytes, we do

  unsigned char i;
  ...
  bt->read_data[0] = BMC2HOST;
  bt->read_count = bt->read_data[0];
  ...
  for (i = 1; i <= bt->read_count; i++)
    bt->read_data[i] = BMC2HOST;

If bt->read_data[0] == bt->read_count == 255, we loop infinitely in the
'for' loop.  Make 'i' an 'int' instead of 'char' to get rid of the
overflow and finish the loop after 255 iterations every time.
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Reported-and-debugged-by: default avatarRui Hui Dian <rhdian@novell.com>
Cc: Tomas Cech <tcech@suse.cz>
Cc: Corey Minyard <minyard@acm.org>
Cc: <openipmi-developer@lists.sourceforge.net>
Signed-off-by: default avatarCorey Minyard <cminyard@mvista.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      24b528cb
    • Qiang Huang's avatar
      drivers: hv: additional switch to use mb() instead of smp_mb() · 683bce8d
      Qiang Huang authored 
      commit e4af376d(drivers: hv: switch to use mb() instead of smp_mb()),
the adjustment mistakenly dropped the change in hv_ringbuffer_read,
so add it.
Signed-off-by: default avatarQiang Huang <h.huangqiang@huawei.com>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      683bce8d
    • Andy Grover's avatar
      target/tcm_fc: Fix use-after-free of ft_tpg · 6ff2fec9
      Andy Grover authored 
      commit 2c42be2d upstream.

ft_del_tpg checks tpg->tport is set before unlinking the tpg from the
tport when the tpg is being removed. Set this pointer in ft_tport_create,
or the unlinking won't happen in ft_del_tpg and tport->tpg will reference
a deleted object.

This patch sets tpg->tport in ft_tport_create, because that's what
ft_del_tpg checks, and is the only way to get back to the tport to
clear tport->tpg.

The bug was occuring when:

- lport created, tport (our per-lport, per-provider context) is
  allocated.
  tport->tpg = NULL
- tpg created
- a PRLI is received. ft_tport_create is called, tpg is found and
  tport->tpg is set
- tpg removed. ft_tpg is freed in ft_del_tpg. Since tpg->tport was not
  set, tport->tpg is not cleared and points at freed memory
- Future calls to ft_tport_create return tport via first conditional,
  instead of searching for new tpg by calling ft_lport_find_tpg.
  tport->tpg is still invalid, and will access freed memory.

see https://bugzilla.redhat.com/show_bug.cgi?id=1071340Signed-off-by: default avatarAndy Grover <agrover@redhat.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      6ff2fec9
    • H. Peter Anvin's avatar
      x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels · a862b5c4
      H. Peter Anvin authored 
      commit b3b42ac2 upstream.

The IRET instruction, when returning to a 16-bit segment, only
restores the bottom 16 bits of the user space stack pointer.  We have
a software workaround for that ("espfix") for the 32-bit kernel, but
it relies on a nonzero stack segment base which is not available in
32-bit mode.

Since 16-bit support is somewhat crippled anyway on a 64-bit kernel
(no V86 mode), and most (if not quite all) 64-bit processors support
virtualization for the users who really need it, simply reject
attempts at creating a 16-bit segment when running on top of a 64-bit
kernel.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-kicdm89kzw9lldryb1br9od0@git.kernel.orgSigned-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      a862b5c4
    • Rafał Miłecki's avatar
      b43: Fix machine check error due to improper access of B43_MMIO_PSM_PHY_HDR · 68289dd3
      Rafał Miłecki authored 
      commit 12cd43c6 upstream.

Register B43_MMIO_PSM_PHY_HDR is 16 bit one, so accessing it with 32b
functions isn't safe. On my machine it causes delayed (!) CPU exception:

Disabling lock debugging due to kernel taint
mce: [Hardware Error]: CPU 0: Machine Check Exception: 4 Bank 4: b200000000070f0f
mce: [Hardware Error]: TSC 164083803dc
mce: [Hardware Error]: PROCESSOR 2:20fc2 TIME 1396650505 SOCKET 0 APIC 0 microcode 0
mce: [Hardware Error]: Run the above through 'mcelog --ascii'
mce: [Hardware Error]: Machine check: Processor context corrupt
Kernel panic - not syncing: Fatal machine check on current CPU
Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)
Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Acked-by: default avatarLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      68289dd3
    • Jens Axboe's avatar
      lib/percpu_counter.c: fix bad percpu counter state during suspend · 1f9df430
      Jens Axboe authored 
      commit e39435ce upstream.

I got a bug report yesterday from Laszlo Ersek in which he states that
his kvm instance fails to suspend.  Laszlo bisected it down to this
commit 1cf7e9c6 ("virtio_blk: blk-mq support") where virtio-blk is
converted to use the blk-mq infrastructure.

After digging a bit, it became clear that the issue was with the queue
drain.  blk-mq tracks queue usage in a percpu counter, which is
incremented on request alloc and decremented when the request is freed.
The initial hunt was for an inconsistency in blk-mq, but everything
seemed fine.  In fact, the counter only returned crazy values when
suspend was in progress.

When a CPU is unplugged, the percpu counters merges that CPU state with
the general state.  blk-mq takes care to register a hotcpu notifier with
the appropriate priority, so we know it runs after the percpu counter
notifier.  However, the percpu counter notifier only merges the state
when the CPU is fully gone.  This leaves a state transition where the
CPU going away is no longer in the online mask, yet it still holds
private values.  This means that in this state, percpu_counter_sum()
returns invalid results, and the suspend then hangs waiting for
abs(dead-cpu-value) requests to complete which of course will never
happen.

Fix this by clearing the state earlier, so we never have a case where
the CPU isn't in online mask but still holds private state.  This bug
has been there since forever, I guess we don't have a lot of users where
percpu counters needs to be reliable during the suspend cycle.
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
Reported-by: default avatarLaszlo Ersek <lersek@redhat.com>
Tested-by: default avatarLaszlo Ersek <lersek@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      1f9df430
    • Takashi Iwai's avatar
      ALSA: ice1712: Fix boundary checks in PCM pointer ops · 2a803e14
      Takashi Iwai authored 
      commit 4f8e9400 upstream.

PCM pointer callbacks in ice1712 driver check the buffer size boundary
wrongly between bytes and frames.  This leads to PCM core warnings
like:
   snd_pcm_update_hw_ptr0: 105 callbacks suppressed
   ALSA pcm_lib.c:352 BUG: pcmC3D0c:0, pos = 5461, buffer size = 5461, period size = 2730

This patch fixes these checks to be placed after the proper unit
conversions.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      2a803e14
    • Oleg Nesterov's avatar
      wait: fix reparent_leader() vs EXIT_DEAD->EXIT_ZOMBIE race · a817fbac
      Oleg Nesterov authored 
      commit dfccbb5e upstream.

wait_task_zombie() first does EXIT_ZOMBIE->EXIT_DEAD transition and
drops tasklist_lock.  If this task is not the natural child and it is
traced, we change its state back to EXIT_ZOMBIE for ->real_parent.

The last transition is racy, this is even documented in 50b8d257
"ptrace: partially fix the do_wait(WEXITED) vs EXIT_DEAD->EXIT_ZOMBIE
race".  wait_consider_task() tries to detect this transition and clear
->notask_error but we can't rely on ptrace_reparented(), debugger can
exit and do ptrace_unlink() before its sub-thread sets EXIT_ZOMBIE.

And there is another problem which were missed before: this transition
can also race with reparent_leader() which doesn't reset >exit_signal if
EXIT_DEAD, assuming that this task must be reaped by someone else.  So
the tracee can be re-parented with ->exit_signal != SIGCHLD, and if
/sbin/init doesn't use __WALL it becomes unreapable.

Change reparent_leader() to update ->exit_signal even if EXIT_DEAD.
Note: this is the simple temporary hack for -stable, it doesn't try to
solve all problems, it will be reverted by the next changes.
Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Reported-by: default avatarJan Kratochvil <jan.kratochvil@redhat.com>
Reported-by: default avatarMichal Schmidt <mschmidt@redhat.com>
Tested-by: default avatarMichal Schmidt <mschmidt@redhat.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Lennart Poettering <lpoetter@redhat.com>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      a817fbac
    • Mizuma, Masayoshi's avatar
      mm: hugetlb: fix softlockup when a large number of hugepages are freed. · 057d8772
      Mizuma, Masayoshi authored 
      commit 55f67141 upstream.

When I decrease the value of nr_hugepage in procfs a lot, softlockup
happens.  It is because there is no chance of context switch during this
process.

On the other hand, when I allocate a large number of hugepages, there is
some chance of context switch.  Hence softlockup doesn't happen during
this process.  So it's necessary to add the context switch in the
freeing process as same as allocating process to avoid softlockup.

When I freed 12 TB hugapages with kernel-2.6.32-358.el6, the freeing
process occupied a CPU over 150 seconds and following softlockup message
appeared twice or more.

$ echo 6000000 > /proc/sys/vm/nr_hugepages
$ cat /proc/sys/vm/nr_hugepages
6000000
$ grep ^Huge /proc/meminfo
HugePages_Total:   6000000
HugePages_Free:    6000000
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
$ echo 0 > /proc/sys/vm/nr_hugepages

BUG: soft lockup - CPU#16 stuck for 67s! [sh:12883] ...
Pid: 12883, comm: sh Not tainted 2.6.32-358.el6.x86_64 #1
Call Trace:
  free_pool_huge_page+0xb8/0xd0
  set_max_huge_pages+0x128/0x190
  hugetlb_sysctl_handler_common+0x113/0x140
  hugetlb_sysctl_handler+0x1e/0x20
  proc_sys_call_handler+0x97/0xd0
  proc_sys_write+0x14/0x20
  vfs_write+0xb8/0x1a0
  sys_write+0x51/0x90
  __audit_syscall_exit+0x265/0x290
  system_call_fastpath+0x16/0x1b

I have not confirmed this problem with upstream kernels because I am not
able to prepare the machine equipped with 12TB memory now.  However I
confirmed that the amount of decreasing hugepages was directly
proportional to the amount of required time.

I measured required times on a smaller machine.  It showed 130-145
hugepages decreased in a millisecond.

  Amount of decreasing     Required time      Decreasing rate
  hugepages                     (msec)         (pages/msec)
  ------------------------------------------------------------
  10,000 pages == 20GB         70 -  74          135-142
  30,000 pages == 60GB        208 - 229          131-144

It means decrement of 6TB hugepages will trigger softlockup with the
default threshold 20sec, in this decreasing rate.
Signed-off-by: default avatarMasayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      057d8772
    • Vlastimil Babka's avatar
      mm: try_to_unmap_cluster() should lock_page() before mlocking · 8e8836ab
      Vlastimil Babka authored 
      commit 57e68e9c upstream.

A BUG_ON(!PageLocked) was triggered in mlock_vma_page() by Sasha Levin
fuzzing with trinity.  The call site try_to_unmap_cluster() does not lock
the pages other than its check_page parameter (which is already locked).

The BUG_ON in mlock_vma_page() is not documented and its purpose is
somewhat unclear, but apparently it serializes against page migration,
which could otherwise fail to transfer the PG_mlocked flag.  This would
not be fatal, as the page would be eventually encountered again, but
NR_MLOCK accounting would become distorted nevertheless.  This patch adds
a comment to the BUG_ON in mlock_vma_page() and munlock_vma_page() to that
effect.

The call site try_to_unmap_cluster() is fixed so that for page !=
check_page, trylock_page() is attempted (to avoid possible deadlocks as we
already have check_page locked) and mlock_vma_page() is performed only
upon success.  If the page lock cannot be obtained, the page is left
without PG_mlocked, which is again not a problem in the whole unevictable
memory design.
Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
Signed-off-by: default avatarBob Liu <bob.liu@oracle.com>
Reported-by: default avatarSasha Levin <sasha.levin@oracle.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: default avatarRik van Riel <riel@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      8e8836ab
    • Nicholas Bellinger's avatar
      iscsi-target: Fix ERL=2 ASYNC_EVENT connection pointer bug · 9acd4122
      Nicholas Bellinger authored 
      commit d444edc6 upstream.

This patch fixes a long-standing bug in iscsit_build_conn_drop_async_message()
where during ERL=2 connection recovery, a bogus conn_p pointer could
end up being used to send the ISCSI_OP_ASYNC_EVENT + DROPPING_CONNECTION
notifying the initiator that cmd->logout_cid has failed.

The bug was manifesting itself as an OOPs in iscsit_allocate_cmd() with
a bogus conn_p pointer in iscsit_build_conn_drop_async_message().
Reported-by: default avatarArshad Hussain <arshad.hussain@calsoftinc.com>
Reported-by: default avatarsantosh kulkarni <santosh.kulkarni@calsoftinc.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      9acd4122
    • alex chen's avatar
      ocfs2: do not put bh when buffer_uptodate failed · 4c5dd0ae
      alex chen authored 
      commit f7cf4f5b upstream.

Do not put bh when buffer_uptodate failed in ocfs2_write_block and
ocfs2_write_super_or_backup, because it will put bh in b_end_io.
Otherwise it will hit a warning "VFS: brelse: Trying to free free
buffer".
Signed-off-by: default avatarAlex Chen <alex.chen@huawei.com>
Reviewed-by: default avatarJoseph Qi <joseph.qi@huawei.com>
Reviewed-by: default avatarSrinivas Eeda <srinivas.eeda@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Acked-by: default avatarJoel Becker <jlbec@evilplan.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarBen Hutchings <ben@decadent.org.uk>
      4c5dd0ae
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