The patch titled
Subject: mm/page_alloc.c:__alloc_pages_nodemask(): don't alter arg gfp_mask
has been added to the -mm tree. Its filename is
mm-page_allocc-__alloc_pages_nodemask-dont-alter-arg-gfp_mask.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_allocc-__alloc_pages_nodemask-dont-alter-arg-gfp_mask.patch
echo and later at
echo http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_allocc-__alloc_pages_nodemask-dont-alter-arg-gfp_mask.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm/page_alloc.c:__alloc_pages_nodemask(): don't alter arg gfp_mask
__alloc_pages_nodemask() strips __GFP_IO when retrying the page
allocation. But it does this by altering the function-wide variable
gfp_mask. This will cause subsequent allocation attempts to inadvertently
use the modified gfp_mask.
Cc: Ming Lei <ming.lei@xxxxxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/page_alloc.c~mm-page_allocc-__alloc_pages_nodemask-dont-alter-arg-gfp_mask mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_allocc-__alloc_pages_nodemask-dont-alter-arg-gfp_mask
+++ a/mm/page_alloc.c
@@ -2854,8 +2854,8 @@ retry_cpuset:
* can deadlock because I/O on the device might not
* complete.
*/
- gfp_mask = memalloc_noio_flags(gfp_mask);
- page = __alloc_pages_slowpath(gfp_mask, order,
+ gfp_t mask = memalloc_noio_flags(gfp_mask);
+ page = __alloc_pages_slowpath(mask, order,
zonelist, high_zoneidx, nodemask,
preferred_zone, classzone_idx, migratetype);
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
input-route-kbd-leds-through-the-generic-leds-layer.patch
o2dlm-fix-null-pointer-dereference-in-o2dlm_blocking_ast_wrapper-checkpatch-fixes.patch
ocfs2-free-inode-when-i_count-becomes-zero.patch
ocfs2-add-functions-to-add-and-remove-inode-in-orphan-dir-fix.patch
mm.patch
slab-improve-checking-for-invalid-gfp_flags.patch
mm-memcontrol-lockless-page-counters-fix.patch
mm-memcontrol-lockless-page-counters-fix-fix.patch
kernel-res_counter-remove-the-unused-api-fix.patch
mm-compaction-simplify-deferred-compaction-fix.patch
mm-memcontrol-remove-unnecessary-pcg_used-pc-mem_cgroup-valid-flag-fix.patch
mm-memcontrol-fold-mem_cgroup_start_move-mem_cgroup_end_move-fix.patch
mm-page_allocc-__alloc_pages_nodemask-dont-alter-arg-gfp_mask.patch
mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
fs-proc-use-a-rb-tree-for-the-directory-entries-fix.patch
fs-binfmt_miscc-use-gfp_kernel-instead-of-gfp_user.patch
init-allow-config_init_fallback=n-to-disable-defaults-if-init=-fails-checkpatch-fixes.patch
rtc-omap-add-support-for-pmic_power_en-v3-fix.patch
sysctl-terminate-strings-also-on-r-fix.patch
ipc-semc-chance-memory-barrier-in-sem_lock-to-smp_rmb-fix.patch
ipc-semc-chance-memory-barrier-in-sem_lock-to-smp_rmb-fix-fix.patch
ipc-msg-increase-msgmni-remove-scaling-checkpatch-fixes.patch
linux-next.patch
linux-next-rejects.patch
drivers-gpio-gpio-zevioc-fix-build.patch
mm-cma-make-kmemleak-ignore-cma-regions.patch
lib-show_mem-this-patch-adds-cma-reserved-infromation-fix.patch
mm-replace-remap_file_pages-syscall-with-emulation.patch
debugging-keep-track-of-page-owners.patch
debugging-keep-track-of-page-owners-fix.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
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