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4c3b89effc
linux/mm
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Linus Torvalds 452b94b8c8 mm/swap: don't BUG_ON() due to uninitialized swap slot cache 
This BUG_ON() triggered for me once at shutdown, and I don't see a
reason for the check.  The code correctly checks whether the swap slot
cache is usable or not, so an uninitialized swap slot cache is not
actually problematic afaik.

I've temporarily just switched the BUG_ON() to a WARN_ON_ONCE(), since
I'm not sure why that seemingly pointless check was there.  I suspect
the real fix is to just remove it entirely, but for now we'll warn about
it but not bring the machine down.

Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-19 19:00:47 -07:00
..
kasan Merge branch 'prep-for-5level' 2017-03-10 08:59:07 -08:00
backing-dev.c bdi: Fix use-after-free in wb_congested_put() 2017-03-08 10:55:17 -07:00
balloon_compaction.c
bootmem.c mm/bootmem.c: cosmetic improvement of code readability 2017-02-22 16:41:29 -08:00
cleancache.c
cma_debug.c mm: cma_alloc: allow to specify GFP mask 2017-02-24 17:46:55 -08:00
cma.c mm: cma: print allocation failure reason and bitmap status 2017-02-24 17:46:55 -08:00
cma.h
compaction.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
debug_page_ref.c
debug.c mm, debug: print raw struct page data in __dump_page() 2016-12-12 18:55:08 -08:00
dmapool.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
early_ioremap.c
fadvise.c mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED 2016-12-20 09:48:46 -08:00
failslab.c
filemap.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
frame_vector.c mm: replace get_vaddr_frames() write/force parameters with gup_flags 2016-10-19 08:11:24 -07:00
frontswap.c
gup.c mm, gup: fix typo in gup_p4d_range() 2017-03-13 08:58:09 -07:00
highmem.c
huge_memory.c Merge branch 'prep-for-5level' 2017-03-10 08:59:07 -08:00
hugetlb_cgroup.c
hugetlb.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
hwpoison-inject.c
init-mm.c mm: Add a user_ns owner to mm_struct and fix ptrace permission checks 2016-11-22 11:49:48 -06:00
internal.h mm, rmap: check all VMAs that PTE-mapped THP can be part of 2017-02-24 17:46:55 -08:00
interval_tree.c
Kconfig mm: THP page cache support for ppc64 2016-12-12 18:55:08 -08:00
Kconfig.debug mm: add arch-independent testcases for RODATA 2017-02-27 18:43:48 -08:00
khugepaged.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h> 2017-03-02 08:42:28 +01:00
kmemcheck.c
kmemleak-test.c
kmemleak.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
ksm.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/coredump.h> 2017-03-02 08:42:28 +01:00
list_lru.c mm/list_lru.c: avoid error-path NULL pointer deref 2016-10-27 18:43:42 -07:00
maccess.c
madvise.c userfaultfd: non-cooperative: userfaultfd_remove revalidate vma in MADV_DONTNEED 2017-03-09 17:01:10 -08:00
Makefile mm: add arch-independent testcases for RODATA 2017-02-27 18:43:48 -08:00
memblock.c mm/memblock.c: fix memblock_next_valid_pfn() 2017-03-09 17:01:10 -08:00
memcontrol.c mm: do not call mem_cgroup_free() from within mem_cgroup_alloc() 2017-03-09 17:01:10 -08:00
memory_hotplug.c mm: add private lock to serialize memory hotplug operations 2017-03-16 16:56:18 -07:00
memory-failure.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h> 2017-03-02 08:42:35 +01:00
memory.c mm: introduce __p4d_alloc() 2017-03-09 11:48:48 -08:00
mempolicy.c sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h> 2017-03-02 08:42:38 +01:00
mempool.c Revert "mm, mempool: only set __GFP_NOMEMALLOC if there are free elements" 2016-07-28 16:07:41 -07:00
memtest.c
migrate.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h> 2017-03-02 08:42:28 +01:00
mincore.c mm: remove shmem_mapping() shmem_zero_setup() duplicates 2017-02-24 17:46:56 -08:00
mlock.c Merge branch 'prep-for-5level' 2017-03-10 08:59:07 -08:00
mm_init.c
mmap.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-03-02 15:20:00 -08:00
mmu_context.c sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h> 2017-03-02 08:42:38 +01:00
mmu_notifier.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h> 2017-03-02 08:42:28 +01:00
mmzone.c mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist() 2017-02-22 16:41:29 -08:00
mprotect.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
mremap.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
msync.c
nobootmem.c mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping 2016-10-11 15:06:33 -07:00
nommu.c Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-03 10:16:38 -08:00
oom_kill.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h> 2017-03-02 08:42:35 +01:00
page_alloc.c mm, page_alloc: Add missing check for memory holes 2017-03-08 11:10:10 -08:00
page_counter.c
page_ext.c mm/page_ext: support extra space allocation by page_ext user 2016-10-07 18:46:27 -07:00
page_idle.c mm: fix handling PTE-mapped THPs in page_idle_clear_pte_refs() 2017-02-24 17:46:55 -08:00
page_io.c writeback: add wbc_to_write_flags() 2016-11-02 10:24:03 -06:00
page_isolation.c mm, page_alloc: avoid page_to_pfn() when merging buddies 2017-02-22 16:41:27 -08:00
page_owner.c mm/page_owner: don't define fields on struct page_ext by hard-coding 2016-10-07 18:46:27 -07:00
page_poison.c
page_vma_mapped.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
page-writeback.c sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency 2017-03-02 08:42:37 +01:00
pagewalk.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
percpu-km.c
percpu-vm.c percpu: remove unused chunk_alloc parameter from pcpu_get_pages() 2017-03-06 15:56:55 -05:00
percpu.c percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages 2017-03-06 15:55:39 -05:00
pgtable-generic.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
process_vm_access.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h> 2017-03-02 08:42:28 +01:00
quicklist.c
readahead.c mm: don't cap request size based on read-ahead setting 2016-12-12 18:55:08 -08:00
rmap.c Merge branch 'prep-for-5level' 2017-03-10 08:59:07 -08:00
rodata_test.c mm: add arch-independent testcases for RODATA 2017-02-27 18:43:48 -08:00
shmem.c Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-03-03 11:38:56 -08:00
slab_common.c kasan: drain quarantine of memcg slab objects 2017-02-24 17:46:56 -08:00
slab.c sched/headers: Prepare to move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h> 2017-03-02 08:42:39 +01:00
slab.h slab: remove synchronous synchronize_sched() from memcg cache deactivation path 2017-02-22 16:41:27 -08:00
slob.c slab: introduce __kmemcg_cache_deactivate() 2017-02-22 16:41:27 -08:00
slub.c slub: make sysfs directories for memcg sub-caches optional 2017-02-22 16:41:27 -08:00
sparse-vmemmap.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
sparse.c mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next 2017-02-22 16:41:29 -08:00
swap_cgroup.c
swap_slots.c mm/swap: don't BUG_ON() due to uninitialized swap slot cache 2017-03-19 19:00:47 -07:00
swap_state.c mm/swap: skip readahead only when swap slot cache is enabled 2017-02-22 16:41:30 -08:00
swap.c mm: vmscan: move dirty pages out of the way until they're flushed 2017-02-24 17:46:54 -08:00
swapfile.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
truncate.c fs: add i_blocksize() 2017-02-27 18:43:46 -08:00
usercopy.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h> 2017-03-02 08:42:35 +01:00
userfaultfd.c mm: convert generic code to 5-level paging 2017-03-09 11:48:47 -08:00
util.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
vmacache.c sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:38 +01:00
vmalloc.c mm: don't warn when vmalloc() fails due to a fatal signal 2017-03-16 16:56:18 -07:00
vmpressure.c mm: vmpressure: fix sending wrong events on underflow 2017-02-24 17:46:56 -08:00
vmscan.c sched/headers: Prepare to move the memalloc_noio_*() APIs to <linux/sched/mm.h> 2017-03-02 08:42:33 +01:00
vmstat.c mm/vmstats: add thp_split_pud event for clarity 2017-03-09 17:01:10 -08:00
workingset.c Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax 2017-02-28 20:29:41 -08:00
z3fold.c z3fold: fix spinlock unlocking in page reclaim 2017-03-16 16:56:18 -07:00
zbud.c
zpool.c
zsmalloc.c sched/headers: Prepare to remove the <linux/magic.h> include from <linux/sched/task_stack.h> 2017-03-02 08:42:40 +01:00
zswap.c zswap: don't param_set_charp while holding spinlock 2017-02-27 18:43:45 -08:00