linux/mm
Linus Torvalds 478a1469a7 Filesystem DAX locking for 4.7
- We use a bit in an exceptional radix tree entry as a lock bit and use it
   similarly to how page lock is used for normal faults.  This fixes races
   between hole instantiation and read faults of the same index.
 
 - Filesystem DAX PMD faults are disabled, and will be re-enabled when PMD
   locking is implemented.
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Merge tag 'dax-locking-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull DAX locking updates from Ross Zwisler:
 "Filesystem DAX locking for 4.7

   - We use a bit in an exceptional radix tree entry as a lock bit and
     use it similarly to how page lock is used for normal faults.  This
     fixes races between hole instantiation and read faults of the same
     index.

   - Filesystem DAX PMD faults are disabled, and will be re-enabled when
     PMD locking is implemented"

* tag 'dax-locking-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: Remove i_mmap_lock protection
  dax: Use radix tree entry lock to protect cow faults
  dax: New fault locking
  dax: Allow DAX code to replace exceptional entries
  dax: Define DAX lock bit for radix tree exceptional entry
  dax: Make huge page handling depend of CONFIG_BROKEN
  dax: Fix condition for filling of PMD holes
2016-05-26 20:00:28 -07:00
..
kasan mm/kasan: add API to check memory regions 2016-05-20 17:58:30 -07:00
backing-dev.c mm: throttle on IO only when there are too many dirty and writeback pages 2016-05-20 17:58:30 -07:00
balloon_compaction.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2016-03-17 21:38:27 -07:00
bootmem.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
cleancache.c cleancache: constify cleancache_ops structure 2016-01-27 09:09:57 -05:00
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: fix zoneindex in kcompactd() 2016-05-20 17:58:30 -07:00
debug_page_ref.c mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
debug.c mm: introduce page reference manipulation functions 2016-03-17 15:09:34 -07:00
dmapool.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
early_ioremap.c mm/early_ioremap: use offset_in_page macro 2015-11-05 19:34:48 -08:00
fadvise.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
failslab.c mm: fault-inject take over bootstrap kmem_cache check 2016-03-15 16:55:16 -07:00
filemap.c Filesystem DAX locking for 4.7 2016-05-26 20:00:28 -07:00
frame_vector.c mm/gup: Switch all callers of get_user_pages() to not pass tsk/mm 2016-02-16 10:11:12 +01:00
frontswap.c frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
gup.c Merge branch 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-04-14 19:31:34 -07:00
highmem.c mm/highmem: make nr_free_highpages() handles all highmem zones by itself 2016-05-19 19:12:14 -07:00
huge_memory.c libnvdimm for 4.7 2016-05-23 11:18:01 -07:00
hugetlb_cgroup.c mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size 2016-05-20 17:58:30 -07:00
hugetlb.c libnvdimm for 4.7 2016-05-23 11:18:01 -07:00
hwpoison-inject.c hwpoison: use page_cgroup_ino for filtering by memcg 2015-09-10 13:29:01 -07:00
init-mm.c
internal.h mm: make vm_mmap killable 2016-05-23 17:04:14 -07:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
Kconfig raxix-tree: introduce CONFIG_RADIX_TREE_MULTIORDER 2016-05-20 17:58:30 -07:00
Kconfig.debug mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
kmemcheck.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
kmemleak-test.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
kmemleak.c mm: coalesce split strings 2016-03-17 15:09:34 -07:00
ksm.c ksm: fix conflict between mmput and scan_get_next_rmap_item 2016-05-12 15:52:50 -07:00
list_lru.c mm: memcontrol: move kmem accounting code to CONFIG_MEMCG 2016-01-20 17:09:18 -08:00
maccess.c x86: remove more uaccess_32.h complexity 2016-05-22 17:21:27 -07:00
madvise.c mm: make mmap_sem for write waits killable for mm syscalls 2016-05-23 17:04:14 -07:00
Makefile z3fold: the 3-fold allocator for compressed pages 2016-05-20 17:58:30 -07:00
memblock.c mm/memblock.c: remove unnecessary always-true comparison 2016-05-20 17:58:30 -07:00
memcontrol.c mm: memcontrol: fix possible css ref leak on oom 2016-05-23 17:04:14 -07:00
memory_hotplug.c memory_hotplug: introduce memhp_default_state= command line parameter 2016-05-19 19:12:14 -07:00
memory-failure.c mm/memory-failure.c: replace "MCE" with "Memory failure" 2016-05-20 17:58:30 -07:00
memory.c Filesystem DAX locking for 4.7 2016-05-26 20:00:28 -07:00
mempolicy.c mm, page_alloc: avoid looking up the first zone in a zonelist twice 2016-05-19 19:12:14 -07:00
mempool.c mm: kasan: initial memory quarantine implementation 2016-05-20 17:58:30 -07:00
memtest.c memtest: remove unused header files 2015-09-08 15:35:28 -07:00
migrate.c mm, migrate: increment fail count on ENOMEM 2016-05-20 17:58:30 -07:00
mincore.c mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage 2016-04-04 10:41:08 -07:00
mlock.c mm: make mmap_sem for write waits killable for mm syscalls 2016-05-23 17:04:14 -07:00
mm_init.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
mmap.c mm: make vm_brk killable 2016-05-23 17:04:14 -07:00
mmu_context.c mm/mmu_context, sched/core: Fix mmu_context.h assumption 2016-04-28 11:44:19 +02:00
mmu_notifier.c fix Christoph's email addresses 2016-03-17 15:09:34 -07:00
mmzone.c mm, page_alloc: inline the fast path of the zonelist iterator 2016-05-19 19:12:14 -07:00
mprotect.c mm: make mmap_sem for write waits killable for mm syscalls 2016-05-23 17:04:14 -07:00
mremap.c mm: make mmap_sem for write waits killable for mm syscalls 2016-05-23 17:04:14 -07:00
msync.c mm/msync: use offset_in_page macro 2015-11-05 19:34:48 -08:00
nobootmem.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
nommu.c mm: make vm_mmap killable 2016-05-23 17:04:14 -07:00
oom_kill.c mm,oom: speed up select_bad_process() loop 2016-05-20 17:58:30 -07:00
page_alloc.c mm: check_new_page_bad() directly returns in __PG_HWPOISON case 2016-05-20 17:58:30 -07:00
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/page_poisoning.c: allow for zero poisoning 2016-03-15 16:55:16 -07:00
page_idle.c mm: add page_check_address_transhuge() helper 2016-01-15 17:56:32 -08:00
page_io.c Merge branch 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-17 15:05:23 -07:00
page_isolation.c mm/memory_hotplug: add comment to some functions related to memory hotplug 2016-05-19 19:12:14 -07:00
page_owner.c mm, page_alloc: inline pageblock lookup in page free fast paths 2016-05-19 19:12:14 -07:00
page_poison.c mm: use existing helper to convert "on"/"off" to boolean 2016-05-20 17:58:30 -07:00
page-writeback.c MM: increase safety margin provided by PF_LESS_THROTTLE 2016-05-20 17:58:30 -07:00
pagewalk.c thp: rename split_huge_page_pmd() to split_huge_pmd() 2016-01-15 17:56:32 -08:00
percpu-km.c mm: percpu: use pr_fmt to prefix output 2016-03-17 15:09:34 -07:00
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 pr_fmt to prefix output 2016-03-17 15:09:34 -07:00
pgtable-generic.c mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range 2016-03-17 15:09:34 -07:00
process_vm_access.c mm/gup: Introduce get_user_pages_remote() 2016-02-16 10:04:09 +01:00
quicklist.c fix Christoph's email addresses 2016-03-17 15:09:34 -07:00
readahead.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
rmap.c mm: use __SetPageSwapBacked and dont ClearPageSwapBacked 2016-05-19 19:12:14 -07:00
shmem.c tmpfs: mem_cgroup charge fault to vm_mm not current mm 2016-05-19 19:12:14 -07:00
slab_common.c mm: kasan: initial memory quarantine implementation 2016-05-20 17:58:30 -07:00
slab.c mm, kasan: don't call kasan_krealloc() from ksize(). 2016-05-20 17:58:30 -07:00
slab.h mm: kasan: initial memory quarantine implementation 2016-05-20 17:58:30 -07:00
slob.c mm: slab: free kmem_cache_node after destroy sysfs file 2016-02-18 16:23:24 -08:00
slub.c mm, kasan: don't call kasan_krealloc() from ksize(). 2016-05-20 17:58:30 -07:00
sparse-vmemmap.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
sparse.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
swap_cgroup.c mm: convert printk(KERN_<LEVEL> to pr_<level> 2016-03-17 15:09:34 -07:00
swap_state.c mm: use __SetPageSwapBacked and dont ClearPageSwapBacked 2016-05-19 19:12:14 -07:00
swap.c mm/swap.c: put activate_page_pvecs and other pagevecs together 2016-05-20 17:58:30 -07:00
swapfile.c mm: thp: calculate the mapcount correctly for THP pages during WP faults 2016-05-12 15:52:50 -07:00
truncate.c dax: New fault locking 2016-05-19 15:20:54 -06:00
userfaultfd.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
util.c mm: make vm_mmap killable 2016-05-23 17:04:14 -07:00
vmacache.c mm/vmacache: inline vmacache_valid_mm() 2015-11-05 19:34:48 -08:00
vmalloc.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2016-05-23 11:48:48 -07:00
vmpressure.c mm/vmpressure.c: fix subtree pressure detection 2016-02-03 08:28:43 -08:00
vmscan.c mm, oom: rework oom detection 2016-05-20 17:58:30 -07:00
vmstat.c vmstat: get rid of the ugly cpu_stat_off variable 2016-05-20 17:58:30 -07:00
workingset.c mm: workingset: make shadow node shrinker memcg aware 2016-03-17 15:09:34 -07:00
z3fold.c z3fold: the 3-fold allocator for compressed pages 2016-05-20 17:58:30 -07:00
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 mm/zsmalloc: don't fail if can't create debugfs info 2016-05-20 17:58:30 -07:00
zswap.c mm/zswap: use workqueue to destroy pool 2016-05-20 17:58:30 -07:00