Subject: + mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix.patch added to -mm tree
To: akpm@xxxxxxxxxxxxxxxxxxxx,Kosaki.motohiro@xxxxxxxxxxxxxx,fengguang.wu@xxxxxxxxx,jweiner@xxxxxxxxxx,mhocko@xxxxxxx,mpatlasov@xxxxxxxxxxxxx,riel@xxxxxxxxxx,sandeen@xxxxxxxxxx,stable@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 29 Apr 2014 15:39:47 -0700
The patch titled
Subject: mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix
has been added to the -mm tree. Its filename is
mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix
make `divisor' ulong
Cc: <stable@xxxxxxxxxxxxxxx>
Cc: Eric Sandeen <sandeen@xxxxxxxxxx>
Cc: Fengguang Wu <fengguang.wu@xxxxxxxxx>
Cc: Johannes Weiner <jweiner@xxxxxxxxxx>
Cc: KOSAKI Motohiro <Kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Maxim Patlasov <mpatlasov@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/page-writeback.c~mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix mm/page-writeback.c
--- a/mm/page-writeback.c~mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix
+++ a/mm/page-writeback.c
@@ -597,13 +597,13 @@ static inline long long pos_ratio_polyno
unsigned long dirty,
unsigned long limit)
{
- unsigned int divisor;
+ unsigned long divisor;
long long pos_ratio;
long x;
divisor = limit - setpoint;
if (!divisor)
- divisor = 1;
+ divisor = 1; /* Avoid div-by-zero */
x = div_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT,
divisor);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
i-need-old-gcc.patch
maintainers-akpm-maintenance.patch
hugetlb-ensure-hugepage-access-is-denied-if-hugepages-are-not-supported-fix.patch
hugetlb-ensure-hugepage-access-is-denied-if-hugepages-are-not-supported-fix-fix.patch
mm-page-writebackc-fix-divide-by-zero-in-pos_ratio_polynom-fix.patch
input-route-kbd-leds-through-the-generic-leds-layer.patch
ocfs2-limit-printk-when-journal-is-aborted-fix.patch
ocfs2-do-not-return-dlm_migrate_response_mastery_ref-to-avoid-endlessloop-during-umount.patch
kernel-watchdogc-print-traces-for-all-cpus-on-lockup-detection-fix.patch
mm.patch
mm-hugetlbfs-fix-rmapping-for-anonymous-hugepages-with-page_pgoff-v3-fix.patch
pagewalk-update-page-table-walker-core-fix-end-address-calculation-in-walk_page_range-fix.patch
pagemap-redefine-callback-functions-for-page-table-walker-fix.patch
pagewalk-remove-argument-hmask-from-hugetlb_entry-fix-fix.patch
mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch
mm-compactionc-isolate_freepages_block-small-tuneup.patch
mm-huge_memoryc-complete-conversion-to-pr_foo.patch
include-linux-mmdebugh-add-vm_warn_on-and-vm_warn_on_once.patch
mm-mempool-warn-about-__gfp_zero-usage-fix.patch
mm-pass-vm_bug_on-reason-to-dump_page-fix.patch
hugetlb-add-support-for-gigantic-page-allocation-at-runtime-checkpatch-fixes.patch
mm-page_alloc-do-not-cache-reclaim-distances-fix.patch
fs-hugetlbfs-inodec-complete-conversion-to-pr_foo.patch
mm-compaction-cleanup-isolate_freepages-fix.patch
arc-call-find_vma-with-the-mmap_sem-held-fix.patch
mm-memcontrolc-introduce-helper-mem_cgroup_zoneinfo_zone-checkpatch-fixes.patch
mm-vmscan-do-not-throttle-based-on-pfmemalloc-reserves-if-node-has-no-zone_normal-checkpatch-fixes.patch
swap-use-bdev_read_page-bdev_write_page-fix.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
printk-release-lockbuf_lock-before-calling-console_trylock_for_printk-fix.patch
init-mainc-dont-use-pr_debug.patch
init-mainc-add-initcall_blacklist-kernel-parameter-fix.patch
rtc-rtc-cmos-drivers-char-rtcc-features-for-decstation-support-fix.patch
hfsplus-fixes-worst-case-unicode-to-char-conversion-of-file-names-and-attributes-fix.patch
hfsplus-correct-usage-of-hfsplus_attr_max_strlen-for-non-english-attributes-fix.patch
hfsplus-correct-usage-of-hfsplus_attr_max_strlen-for-non-english-attributes-fix-2.patch
fs-pstore-logging-clean-up-fix.patch
linux-next.patch
linux-next-rejects.patch
drivers-gpio-gpio-zevioc-fix-build.patch
mm-page_ioc-work-around-gcc-bug.patch
ufs-sb-mutex-merge-mutex_destroy.patch
debugging-keep-track-of-page-owners.patch
journal_add_journal_head-debug.patch
journal_add_journal_head-debug-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
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