+ mempolicy-reduce-stack-size-of-migrate_pages-fix.patch added to -mm tree

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The patch titled
     mempolicy-reduce-stack-size-of-migrate_pages-fix
has been added to the -mm tree.  Its filename is
     mempolicy-reduce-stack-size-of-migrate_pages-fix.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: mempolicy-reduce-stack-size-of-migrate_pages-fix
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

don't play with a might-be-NULL pointer

Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/mempolicy.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff -puN mm/mempolicy.c~mempolicy-reduce-stack-size-of-migrate_pages-fix mm/mempolicy.c
--- a/mm/mempolicy.c~mempolicy-reduce-stack-size-of-migrate_pages-fix
+++ a/mm/mempolicy.c
@@ -1279,13 +1279,16 @@ SYSCALL_DEFINE4(migrate_pages, pid_t, pi
 	struct task_struct *task;
 	nodemask_t task_nodes;
 	int err;
+	nodemask_t *old;
+	nodemask_t *new;
 	NODEMASK_SCRATCH(scratch);
-	nodemask_t *old = &scratch->mask1;
-	nodemask_t *new = &scratch->mask2;
 
 	if (!scratch)
 		return -ENOMEM;
 
+	old = &scratch->mask1;
+	new = &scratch->mask2;
+
 	err = get_nodes(old, old_nodes, maxnode);
 	if (err)
 		goto out;
_

Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are

linux-next.patch
next-remove-localversion.patch
i-need-old-gcc.patch
include-linux-fsh-complete-hexification-of-fmode_-constants.patch
cpuidle-avoid-using-smp_processor_id-in-preemptible-code-nr_iowait_cpu-v4-fix.patch
cpuidle-avoid-using-smp_processor_id-in-preemptible-code-nr_iowait_cpu-v4-fix-fix.patch
cpuidle-avoid-using-smp_processor_id-in-preemptible-code-nr_iowait_cpu-v4-fix-fix-fix.patch
fs-fcntlc-kill_fasync_rcu-fa_lock-must-be-irq-safe.patch
intel_menlow-fix-memory-leaks-in-error-path-fix.patch
x86-cpufreq-make-trace_power_frequency-cpufreq-driver-independent-fix.patch
compal-laptop-added-jhl90-battery-hwmon-interface.patch
dib3000mc-reduce-large-stack-usage-fix.patch
hpet-factor-timer-allocate-from-open.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
3x59x-fix-pci-resource-management.patch
altera_uart-simplify-altera_uart_console_putc-checkpatch-fixes.patch
serial-mcf-dont-take-spinlocks-in-already-protected-functions-fix.patch
scsi-remove-private-bit-macros.patch
vfs-use-kmalloc-to-allocate-fdmem-if-possible.patch
mm.patch
tmpfs-quick-token-library-to-allow-scalable-retrieval-of-tokens-from-token-jar.patch
mm-vmap-area-cache-fix.patch
mm-track-the-root-oldest-anon_vma-fix.patch
oom-improve-commentary-in-dump_tasks.patch
oom-sacrifice-child-with-highest-badness-score-for-parent-protect-dereferencing-of-tasks-comm.patch
oom-select-task-from-tasklist-for-mempolicy-ooms-add-has_intersects_mems_allowed-uma-variant.patch
mempolicy-reduce-stack-size-of-migrate_pages-fix.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
include-linux-compiler-gcch-use-__same_type-in-__must_be_array.patch
mmc-recognize-csd-structure-fix.patch
mmc-fix-all-hangs-related-to-mmc-sd-card-insert-removal-during-suspend-resume-fix.patch
fix-vc-vc_origin-on-take_over_console-checkpatch-fixes.patch
rtc-fixes-and-new-functionality-for-fm3130-fix.patch
delay-accounting-re-implement-c-for-getdelaysc-to-report-information-on-a-target-command-checkpatch-fixes.patch
kfifo-add-example-files-to-the-kernel-sample-directory-checkpatch-fixes.patch
reiser4-export-remove_from_page_cache-fix.patch
reiser4-export-find_get_pages.patch
reiser4.patch
reiser4-writeback_inodes-implementation-fix.patch
reiser4-fixups.patch
reiser4-broke.patch
journal_add_journal_head-debug.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
getblk-handle-2tb-devices.patch

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