Yang Shi acda305dcb mm: check the return value of lookup_page_ext for all call sites ... Per the discussion with Joonsoo Kim [1], we need check the return value of lookup_page_ext() for all call sites since it might return NULL in some cases, although it is unlikely, i.e. memory hotplug. Tested with ltp with "page_owner=0". [1] http://lkml.kernel.org/r/20160519002809.GA10245@js1304-P5Q-DELUXE Change-Id: Ie0c577c1136a7f6f4e0fa2ceacfb007cd5323b8e [akpm@linux-foundation.org: fix build-breaking typos] [arnd@arndb.de: fix build problems from lookup_page_ext] Link: http://lkml.kernel.org/r/6285269.2CksypHdYp@wuerfel [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/1464023768-31025-1-git-send-email-yang.shi@linaro.org Signed-off-by: Yang Shi <yang.shi@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Git-commit: f86e4271978bd93db466d6a95dad4b0fdcdb04f6 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git [guptap@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Prakash Gupta <guptap@codeaurora.org>		2017-07-07 15:39:32 +05:30
..
kasan	Merge branch 'android-4.4@77ddb50' (v4.4.74) into 'msm-4.4'	2017-06-28 10:03:23 -07:00
backing-dev.c	block: fix double-free in the failure path of cgwb_bdi_init()	2017-02-26 11:07:51 +01:00
balloon_compaction.c	mm: balloon: use general non-lru movable page feature	2017-02-21 12:38:41 +05:30
bootmem.c	mm: Remove __init annotations from free_bootmem_late	2016-03-22 11:03:23 -07:00
cleancache.c
cma.c	Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'	2017-02-28 17:10:49 -08:00
cma.h
cma_debug.c
compaction.c	mm/page_owner: initialize page owner without holding the zone lock	2017-07-07 15:17:35 +05:30
debug.c	mm, page_owner: dump page owner info from dump_page()	2017-07-07 15:12:10 +05:30
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c	Merge tag v4.4.55 into branch 'msm-4.4'	2017-03-23 03:22:14 -07:00
frame_vector.c
frontswap.c
gup.c	mm: larger stack guard gap, between vmas	2017-06-26 07:13:11 +02:00
highmem.c
huge_memory.c	mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp	2017-05-25 14:30:16 +02:00
hugetlb.c	mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd()	2017-04-08 09:53:32 +02:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c	mm: Add a user_ns owner to mm_struct and fix ptrace permission checks	2017-01-06 11:16:11 +01:00
internal.h	mm, kswapd: replace kswapd compaction with waking up kcompactd	2017-02-21 12:37:21 +05:30
interval_tree.c
Kconfig	mm: Support address range reclaim	2016-06-22 14:44:20 -07:00
Kconfig.debug	mm: allow page poisoning to be enabled by default.	2017-04-14 23:43:05 +05:30
kmemcheck.c
kmemleak-test.c
kmemleak.c	kmemleak : Make kmemleak_stack_scan optional using config	2016-03-22 11:03:47 -07:00
ksm.c	Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'	2017-02-28 17:10:49 -08:00
list_lru.c	mm/list_lru.c: avoid error-path NULL pointer deref	2016-11-10 16:36:32 +01:00
maccess.c	x86: remove more uaccess_32.h complexity	2016-08-27 11:23:38 +08:00
madvise.c	mm: add a field to store names for private anonymous memory	2016-02-16 13:54:13 -08:00
Makefile	mm/page_poison.c: enable PAGE_POISONING as a separate option	2017-04-14 23:43:04 +05:30
memblock.c	Merge branch 'android-4.4@e76c0fa' into branch 'msm-4.4'	2017-06-20 14:55:15 -07:00
memcontrol.c	Merge tag 'lsk-v4.4-17.02-android' into branch 'msm-4.4'	2017-03-18 08:55:10 -07:00
memory-failure.c	Merge branch 'android-4.4@77ddb50' (v4.4.74) into 'msm-4.4'	2017-06-28 10:03:23 -07:00
memory.c	Merge branch 'android-4.4@77ddb50' (v4.4.74) into 'msm-4.4'	2017-06-28 10:03:23 -07:00
memory_hotplug.c	Merge tag 'lsk-v4.4-17.02-android' into branch 'msm-4.4'	2017-03-18 08:55:10 -07:00
mempolicy.c	This is the 4.4.61 stable release	2017-04-12 22:18:35 +02:00
mempool.c
memtest.c	lib: memtest: Add MEMTEST_ENABLE_DEFAULT option	2016-05-05 15:05:52 -07:00
migrate.c	mm, page_owner: track and print last migrate reason	2017-07-07 15:12:10 +05:30
mincore.c
mlock.c	This is the 4.4.71 stable release	2017-06-07 12:36:01 +02:00
mm_init.c
mmap.c	Merge branch 'android-4.4@77ddb50' (v4.4.74) into 'msm-4.4'	2017-06-28 10:03:23 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c	mm: add a field to store names for private anonymous memory	2016-02-16 13:54:13 -08:00
mremap.c
msync.c
nobootmem.c	mm: Remove __init annotations from free_bootmem_late	2016-03-22 11:03:23 -07:00
nommu.c
oom_kill.c	mm, oom: make dump_tasks public	2016-03-22 11:03:30 -07:00
page-writeback.c	Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'	2017-02-28 17:10:49 -08:00
page_alloc.c	mm: check the return value of lookup_page_ext for all call sites	2017-07-07 15:39:32 +05:30
page_counter.c
page_ext.c	mm: enable page poisoning early at boot	2017-04-14 23:43:05 +05:30
page_idle.c
page_io.c
page_isolation.c	mm/page_owner: initialize page owner without holding the zone lock	2017-07-07 15:17:35 +05:30
page_owner.c	mm: check the return value of lookup_page_ext for all call sites	2017-07-07 15:39:32 +05:30
page_poison.c	mm: allow page poisoning to be enabled by default.	2017-04-14 23:43:05 +05:30
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c	percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages	2017-03-26 12:13:20 +02:00
pgtable-generic.c	mm,thp: khugepaged: call pte flush at the time of collapse	2016-02-25 12:01:23 -08:00
process_reclaim.c	lowmemorykiller: Introduce sysfs node for ALMK and PPR adj threshold	2016-12-17 16:16:17 +05:30
process_vm_access.c	BACKPORT: ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-07-07 16:30:43 -07:00
quicklist.c
readahead.c	mm: change initial readahead window size calculation	2016-03-22 11:03:39 -07:00
rmap.c	mm: Enhance per process reclaim to consider shared pages	2016-06-22 14:43:57 -07:00
shmem.c	This is the 4.4.16 stable release	2016-08-01 15:57:55 -07:00
showmem.c	mm: showmem: make the notifiers atomic	2016-03-22 11:03:55 -07:00
slab.c	UPSTREAM: mm: SLAB hardened usercopy support	2016-09-06 15:54:24 +00:00
slab.h
slab_common.c	mm: memcontrol: fix cgroup creation failure after many small jobs	2016-08-16 09:30:51 +02:00
slob.c
slub.c	Merge branch 'android-4.4@6fc0573' into branch 'msm-4.4'	2017-06-19 16:59:55 -07:00
sparse-vmemmap.c
sparse.c
swap.c
swap_cgroup.c	swap: cond_resched in swap_cgroup_prepare()	2017-06-26 07:13:10 +02:00
swap_ratio.c	mm: swap_ratio: bail out if there aren't any other swap device	2016-05-31 15:23:38 -07:00
swap_state.c	lowmemorykiller: Don't count swap cache pages twice	2016-04-13 11:11:01 -07:00
swapfile.c	Merge tag 'lsk-v4.4-16.12-android' into branch 'msm-4.4'	2017-02-28 17:10:49 -08:00
truncate.c	Merge branch 'android-4.4@e76c0fa' into branch 'msm-4.4'	2017-06-20 14:55:15 -07:00
usercopy.c	mm: Fix build for hardened usercopy	2016-10-12 22:35:30 +05:30
userfaultfd.c
util.c	mm: migrate: support non-lru movable page migration	2017-02-21 12:38:28 +05:30
vmacache.c
vmalloc.c	mm: add preempt points into __purge_vmap_area_lazy()	2017-06-19 15:28:58 +05:30
vmpressure.c	mm: vmpressure: fix sending wrong events on underflow	2017-03-12 06:37:25 +01:00
vmscan.c	mm: separate out the invocation of lowmemorykiller shrinker	2017-04-18 10:29:44 +05:30
vmstat.c	mm: check the return value of lookup_page_ext for all call sites	2017-07-07 15:39:32 +05:30
workingset.c	mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()	2016-10-28 03:01:34 -04:00
zbud.c	mm: zbud: fix the locking scenarios with zcache	2016-08-25 11:49:45 +05:30
zcache.c	mm: zcache: fix merge issues	2016-06-07 11:57:44 -07:00
zpool.c
zsmalloc.c	mm: fix build warnings in <linux/compaction.h>	2017-02-21 12:41:38 +05:30
zswap.c	zswap: disable changing params if init fails	2017-02-09 08:02:45 +01:00