Arnd Bergmann 629d9d1caf mm: avoid uninitialized variable in tracepoint ...

A newly added tracepoint in the hugepage code uses a variable in the
error handling that is not initialized at that point:

include/trace/events/huge_memory.h:81:230: error: 'isolated' may be used uninitialized in this function [-Werror=maybe-uninitialized]

The result is relatively harmless, as the trace data will in rare
cases contain incorrect data.

This works around the problem by adding an explicit initialization.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 7d2eba0557c1 ("mm: add tracepoint for scanning pages")
Reviewed-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2016-01-20 09:21:41 -08:00

..

kasan

kasan: fix kmemleak false-positive in kasan_module_alloc()

2015-11-20 16:17:32 -08:00

backing-dev.c

mm: memcontrol: export root_mem_cgroup

2016-01-14 16:00:49 -08:00

balloon_compaction.c

virtio_balloon: fix race between migration and ballooning

2016-01-12 20:47:06 +02:00

bootmem.c

x86/mm: Introduce max_possible_pfn

2015-12-06 12:46:31 +01:00

cleancache.c

cleancache: remove limit on the number of cleancache enabled filesystems

2015-04-14 16:49:03 -07:00

cma_debug.c

mm/cma_debug: correct size input to bitmap function

2015-07-17 16:39:54 -07:00

cma.c

mm/cma.c: suppress warning

2015-11-05 19:34:48 -08:00

cma.h

mm: cma: mark cma_bitmap_maxno() inline in header

2015-08-14 15:56:32 -07:00

compaction.c

mm/compaction.c: __compact_pgdat() code cleanuup

2016-01-14 16:00:49 -08:00

debug-pagealloc.c

mm/debug-pagealloc: make debug-pagealloc boottime configurable

2014-12-13 12:42:48 -08:00

debug.c

mm: rework mapcount accounting to enable 4k mapping of THPs

2016-01-15 17:56:32 -08:00

dmapool.c

mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd

2015-11-06 17:50:42 -08:00

early_ioremap.c

mm/early_ioremap: use offset_in_page macro

2015-11-05 19:34:48 -08:00

fadvise.c

writeback: implement and use inode_congested()

2015-06-02 08:33:35 -06:00

failslab.c

mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM

2015-11-06 17:50:42 -08:00

filemap.c

mm: differentiate page_mapped() from page_mapcount() for compound pages

2016-01-15 17:56:32 -08:00

frame_vector.c

mm: fix docbook comment for get_vaddr_frames()

2015-11-05 19:34:48 -08:00

frontswap.c

frontswap: allow multiple backends

2015-06-24 17:49:45 -07:00

gup.c

mm: bring in additional flag for fixup_user_fault to signal unlock

2016-01-15 17:56:32 -08:00

highmem.c

mm/highmem: make kmap cache coloring aware

2014-08-06 18:01:22 -07:00

huge_memory.c

mm: avoid uninitialized variable in tracepoint

2016-01-20 09:21:41 -08:00

hugetlb_cgroup.c

mm: make compound_head() robust

2015-11-06 17:50:42 -08:00

hugetlb.c

mm: rework mapcount accounting to enable 4k mapping of THPs

2016-01-15 17:56:32 -08:00

hwpoison-inject.c

hwpoison: use page_cgroup_ino for filtering by memcg

2015-09-10 13:29:01 -07:00

init-mm.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

internal.h

thp: reintroduce split_huge_page()

2016-01-15 17:56:32 -08:00

interval_tree.c

mm: replace vma->sharead.linear with vma->shared

2015-02-10 14:30:31 -08:00

Kconfig

mm: re-enable THP

2016-01-15 17:56:32 -08:00

Kconfig.debug

mm/debug_pagealloc: remove obsolete Kconfig options

2015-01-08 15:10:52 -08:00

kmemcheck.c

mm/slab_common: move kmem_cache definition to internal header

2014-10-09 22:25:50 -04:00

kmemleak-test.c

mm/kmemleak-test.c: use pr_fmt for logging

2014-06-06 16:08:18 -07:00

kmemleak.c

Revert "gfp: add __GFP_NOACCOUNT"

2016-01-14 16:00:49 -08:00

ksm.c

mm/ksm.c: mark stable page dirty

2016-01-15 17:56:32 -08:00

list_lru.c

memcg: simplify and inline __mem_cgroup_from_kmem

2015-11-05 19:34:48 -08:00

maccess.c

mm/maccess.c: actually return -EFAULT from strncpy_from_unsafe

2015-11-05 19:34:48 -08:00

madvise.c

mm/huge_memory.c: don't split THP page when MADV_FREE syscall is called

2016-01-15 17:56:32 -08:00

Makefile

media updates for v4.3-rc1

2015-09-11 16:42:39 -07:00

memblock.c

mm/memblock: introduce for_each_memblock_type()

2016-01-14 16:00:49 -08:00

memcontrol.c

memcg: only free spare array when readers are done

2016-01-15 17:56:32 -08:00

memory_hotplug.c

x86, mm: introduce vmem_altmap to augment vmemmap_populate()

2016-01-15 17:56:32 -08:00

memory-failure.c

mm: soft-offline: exit with failure for non anonymous thp

2016-01-15 17:56:32 -08:00

memory.c

mm, dax: dax-pmd vs thp-pmd vs hugetlbfs-pmd

2016-01-15 17:56:32 -08:00

mempolicy.c

mm: mempolicy: skip non-migratable VMAs when setting MPOL_MF_LAZY

2016-01-15 17:56:32 -08:00

mempool.c

mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd

2015-11-06 17:50:42 -08:00

memtest.c

memtest: remove unused header files

2015-09-08 15:35:28 -07:00

migrate.c

thp: introduce deferred_split_huge_page()

2016-01-15 17:56:32 -08:00

mincore.c

mm, thp: remove infrastructure for handling splitting PMDs

2016-01-15 17:56:32 -08:00

mlock.c

mm/mlock.c: change can_do_mlock return value type to boolean

2016-01-15 17:56:32 -08:00

mm_init.c

mm: meminit: remove mminit_verify_page_links

2015-06-30 19:44:56 -07:00

mmap.c

mm: fix locking order in mm_take_all_locks()

2016-01-15 17:56:32 -08:00

mmu_context.c

sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm

2014-02-21 08:50:17 +01:00

mmu_notifier.c

mmu-notifier: add clear_young callback

2015-09-10 13:29:01 -07:00

mmzone.c

mm/mmzone.c: memmap_valid_within() can be boolean

2016-01-14 16:00:49 -08:00

mprotect.c

mm, dax: dax-pmd vs thp-pmd vs hugetlbfs-pmd

2016-01-15 17:56:32 -08:00

mremap.c

mm, thp: remove infrastructure for handling splitting PMDs

2016-01-15 17:56:32 -08:00

msync.c

mm/msync: use offset_in_page macro

2015-11-05 19:34:48 -08:00

nobootmem.c

x86/mm: Introduce max_possible_pfn

2015-12-06 12:46:31 +01:00

nommu.c

kmemcg: account certain kmem allocations to memcg

2016-01-14 16:00:49 -08:00

oom_kill.c

mm, shmem: add internal shmem resident memory accounting

2016-01-14 16:00:49 -08:00

page_alloc.c

mm/page_alloc.c: remove unused struct zone *z variable

2016-01-15 17:56:32 -08:00

page_counter.c

mm: page_counter: let page_counter_try_charge() return bool

2015-11-05 19:34:48 -08:00

page_ext.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

page_idle.c

mm: add page_check_address_transhuge() helper

2016-01-15 17:56:32 -08:00

page_io.c

fs: use helper bio_add_page() instead of open coding on bi_io_vec

2015-08-13 12:32:00 -06:00

page_isolation.c

mm/page_isolation: do some cleanup in "undo_isolate_page_range"

2016-01-15 17:56:32 -08:00

page_owner.c

mm/page_owner: set correct gfp_mask on page_owner

2015-07-17 16:39:54 -07:00

page-writeback.c

mm: page_alloc: generalize the dirty balance reserve

2016-01-14 16:00:49 -08:00

pagewalk.c

thp: rename split_huge_page_pmd() to split_huge_pmd()

2016-01-15 17:56:32 -08:00

percpu-km.c

percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated

2014-09-02 14:46:05 -04:00

percpu-vm.c

percpu: move region iterations out of pcpu_[de]populate_chunk()

2014-09-02 14:46:02 -04:00

percpu.c

mm/percpu: use offset_in_page macro

2015-11-05 19:34:48 -08:00

pgtable-generic.c

mm, dax: dax-pmd vs thp-pmd vs hugetlbfs-pmd

2016-01-15 17:56:32 -08:00

process_vm_access.c

process_vm_access: switch to {compat_,}import_iovec()

2015-04-11 22:27:12 -04:00

quicklist.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

readahead.c

mm: move lru_to_page to mm_inline.h

2016-01-14 16:00:49 -08:00

rmap.c

mm: fix locking order in mm_take_all_locks()

2016-01-15 17:56:32 -08:00

shmem.c

memcg: adjust to support new THP refcounting

2016-01-15 17:56:32 -08:00

slab_common.c

slab: add SLAB_ACCOUNT flag

2016-01-14 16:00:49 -08:00

slab.c

mm/slab.c: add a helper function get_first_slab

2016-01-14 16:00:49 -08:00

slab.h

slab: add SLAB_ACCOUNT flag

2016-01-14 16:00:49 -08:00

slob.c

slab/slub: adjust kmem_cache_alloc_bulk API

2015-11-22 11:58:44 -08:00

slub.c

page-flags: define PG_locked behavior on compound pages

2016-01-15 17:56:32 -08:00

sparse-vmemmap.c

x86, mm: introduce vmem_altmap to augment vmemmap_populate()

2016-01-15 17:56:32 -08:00

sparse.c

x86, mm: introduce vmem_altmap to augment vmemmap_populate()

2016-01-15 17:56:32 -08:00

swap_cgroup.c

mm: page_cgroup: rename file to mm/swap_cgroup.c

2014-12-10 17:41:09 -08:00

swap_state.c

mm: support madvise(MADV_FREE)

2016-01-15 17:56:32 -08:00

swap.c

mm, x86: get_user_pages() for dax mappings

2016-01-15 17:56:32 -08:00

swapfile.c

mm: make swapoff more robust against soft dirty

2016-01-15 17:56:32 -08:00

truncate.c

memcg: add per cgroup dirty page accounting

2015-06-02 08:33:33 -06:00

userfaultfd.c

memcg: adjust to support new THP refcounting

2016-01-15 17:56:32 -08:00

util.c

mm: prepare page_referenced() and page_idle to new THP refcounting

2016-01-15 17:56:32 -08:00

vmacache.c

mm/vmacache: inline vmacache_valid_mm()

2015-11-05 19:34:48 -08:00

vmalloc.c

mm/vmalloc.c: use macro IS_ALIGNED to judge the aligment

2016-01-15 17:56:32 -08:00

vmpressure.c

memcg: avoid vmpressure oops when memcg disabled

2016-01-14 16:00:49 -08:00

vmscan.c

mm: support madvise(MADV_FREE)

2016-01-15 17:56:32 -08:00

vmstat.c

mm: support madvise(MADV_FREE)

2016-01-15 17:56:32 -08:00

workingset.c

list_lru: add helpers to isolate items

2015-02-12 18:54:10 -08:00

zbud.c

mm/zbud.c: use list_last_entry() instead of list_tail_entry()

2016-01-15 11:40:52 -08:00

zpool.c

mm: zsmalloc: constify struct zs_pool name

2015-11-06 17:50:42 -08:00

zsmalloc.c

zsmalloc: reorganize struct size_class to pack 4 bytes hole

2016-01-15 11:40:52 -08:00

zswap.c

mm/zswap: change incorrect strncmp use to strcmp

2015-12-18 14:25:40 -08:00