The patch titled
mm-thp-optimize-memcg-charge-in-khugepaged-fix
has been added to the -mm tree. Its filename is
mm-thp-optimize-memcg-charge-in-khugepaged-fix.patch
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out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mm-thp-optimize-memcg-charge-in-khugepaged-fix
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff -puN mm/huge_memory.c~mm-thp-optimize-memcg-charge-in-khugepaged-fix mm/huge_memory.c
--- a/mm/huge_memory.c~mm-thp-optimize-memcg-charge-in-khugepaged-fix
+++ a/mm/huge_memory.c
@@ -1788,7 +1788,11 @@ static void collapse_huge_page(struct mm
*/
new_page = alloc_hugepage_vma(khugepaged_defrag(), vma, address,
node, __GFP_OTHER_NODE);
- /* after allocating the hugepage upgrade to mmap_sem write mode */
+
+ /*
+ * After allocating the hugepage, release the mmap_sem read lock in
+ * preparation for taking it in write mode.
+ */
up_read(&mm->mmap_sem);
if (unlikely(!new_page)) {
count_vm_event(THP_COLLAPSE_ALLOC_FAILED);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
linux-next.patch
next-remove-localversion.patch
i-need-old-gcc.patch
hid-examplec-is-borked.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
drivers-i2c-busses-i2c-designware-corec-needs-delayh.patch
vfs-avoid-large-kmallocs-for-the-fdtable.patch
arch-x86-include-asm-delayh-fix-udelay-and-ndelay-for-8-bit-args.patch
drivers-gpu-drm-radeon-atomc-fix-warning.patch
leds-route-kbd-leds-through-the-generic-leds-layer.patch
backlight-add-backlight-type-fix.patch
backlight-add-backlight-type-fix-fix.patch
drivers-video-backlight-adp5520_blc-check-strict_strtoul-return-value-fix.patch
drivers-message-fusion-mptsasc-fix-warning.patch
osst-wrong-index-used-in-inner-loop-checkpatch-fixes.patch
drivers-scsi-osstc-fix-warning.patch
drbd-fix-warning.patch
drivers-usb-misc-usbtestc-fix-warning.patch
mm.patch
mm-nommu-sort-mm-mmap-list-properly-fix.patch
mm-per-node-vmstat-show-proper-vmstats-fix.patch
mm-mem-hotplug-update-pcp-stat_threshold-when-memory-hotplug-occur-fix.patch
mm-mmu_gather-rework-fix.patch
mm-thp-optimize-memcg-charge-in-khugepaged-fix.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
hpet-factor-timer-allocate-from-open.patch
arch-alpha-include-asm-ioh-s-extern-inline-static-inline.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure-checkpatch-fixes.patch
init-calibratec-fix-for-critical-bogomips-intermittent-calculation-failure-fix.patch
lru_cache-use-correct-type-in-sizeof-for-allocation-fix.patch
lib-genpoolc-document-return-values-fix-gen_pool_add_virt-return-value.patch
percpu_counter-change-return-value-and-add-comments-fix.patch
lib-hexdumpc-make-hex2bin-return-the-updated-src-address.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method-fix.patch
fs-binfmt_miscc-use-kernels-hex_to_bin-method-fix-fix.patch
fs-ncpfs-inodec-suppress-used-uninitialised-warning.patch
drivers-tty-vt-vt_ioctlc-repair-insane-expression.patch
drivers-rtc-rtc-mrstc-use-release_mem_region-after-request_mem_region-fix.patch
rtc-driver-for-pt7c4338-chip-checkpatch-fixes.patch
rtc-driver-for-pt7c4338-chip-fix.patch
documentation-accounting-getdelaysc-handle-sendto-failures.patch
mm-move-enum-vm_event_item-into-a-standalone-header-file.patch
add-the-pagefault-count-into-memcg-stats-fix.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node.patch
cpusets-randomize-node-rotor-used-in-cpuset_mem_spread_node-cpusets-initialize-spread-rotor-lazily-fix.patch
dev-kmsg-properly-support-writev-to-avoid-interleaved-printk-lines-fix.patch
fs-partitions-efic-corrupted-guid-partition-tables-can-cause-kernel-oops-fix.patch
scatterlist-new-helper-functions.patch
scatterlist-new-helper-functions-update-fix.patch
kexec-remove-kmsg_dump_kexec-fix.patch
journal_add_journal_head-debug.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
memblock-add-input-size-checking-to-memblock_find_region.patch
memblock-add-input-size-checking-to-memblock_find_region-fix.patch
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