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Linus Torvalds 81a046b18b for-5.6-tag 
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Merge tag 'for-5.6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Features, highlights:

   - async discard
       - "mount -o discard=async" to enable it
       - freed extents are not discarded immediatelly, but grouped
         together and trimmed later, with IO rate limiting
       - the "sync" mode submits short extents that could have been
         ignored completely by the device, for SATA prior to 3.1 the
         requests are unqueued and have a big impact on performance
       - the actual discard IO requests have been moved out of
         transaction commit to a worker thread, improving commit latency
       - IO rate and request size can be tuned by sysfs files, for now
         enabled only with CONFIG_BTRFS_DEBUG as we might need to
         add/delete the files and don't have a stable-ish ABI for
         general use, defaults are conservative

   - export device state info in sysfs, eg. missing, writeable

   - no discard of extents known to be untouched on disk (eg. after
     reservation)

   - device stats reset is logged with process name and PID that called
     the ioctl

  Fixes:

   - fix missing hole after hole punching and fsync when using NO_HOLES

   - writeback: range cyclic mode could miss some dirty pages and lead
     to OOM

   - two more corner cases for metadata_uuid change after power loss
     during the change

   - fix infinite loop during fsync after mix of rename operations

  Core changes:

   - qgroup assign returns ENOTCONN when quotas not enabled, used to
     return EINVAL that was confusing

   - device closing does not need to allocate memory anymore

   - snapshot aware code got removed, disabled for years due to
     performance problems, reimplmentation will allow to select wheter
     defrag breaks or does not break COW on shared extents

   - tree-checker:
       - check leaf chunk item size, cross check against number of
         stripes
       - verify location keys for DIR_ITEM, DIR_INDEX and XATTR items

   - new self test for physical -> logical mapping code, used for super
     block range exclusion

   - assertion helpers/macros updated to avoid objtool "unreachable
     code" reports on older compilers or config option combinations"

* tag 'for-5.6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (84 commits)
  btrfs: free block groups after free'ing fs trees
  btrfs: Fix split-brain handling when changing FSID to metadata uuid
  btrfs: Handle another split brain scenario with metadata uuid feature
  btrfs: Factor out metadata_uuid code from find_fsid.
  btrfs: Call find_fsid from find_fsid_inprogress
  Btrfs: fix infinite loop during fsync after rename operations
  btrfs: set trans->drity in btrfs_commit_transaction
  btrfs: drop log root for dropped roots
  btrfs: sysfs, add devid/dev_state kobject and device attributes
  btrfs: Refactor btrfs_rmap_block to improve readability
  btrfs: Add self-tests for btrfs_rmap_block
  btrfs: selftests: Add support for dummy devices
  btrfs: Move and unexport btrfs_rmap_block
  btrfs: separate definition of assertion failure handlers
  btrfs: device stats, log when stats are zeroed
  btrfs: fix improper setting of scanned for range cyclic write cache pages
  btrfs: safely advance counter when looking up bio csums
  btrfs: remove unused member btrfs_device::work
  btrfs: remove unnecessary wrapper get_alloc_profile
  btrfs: add correction to handle -1 edge case in async discard
  ...
2020-01-28 14:53:31 -08:00
..
kasan
x86/kasan: Print original address on #GP
2019-12-31 13:15:38 +01:00
backing-dev.c
bdi: Do not use freezable workqueue
2019-10-06 09:11:35 -06:00
balloon_compaction.c
mm/balloon_compaction: suppress allocation warnings
2019-09-04 07:42:01 -04:00
cleancache.c
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
cma_debug.c
mm/cma_debug.c: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops
2019-12-01 12:59:09 -08:00
cma.c
mm/cma.c: switch to bitmap_zalloc() for cma bitmap allocation
2019-12-01 12:59:09 -08:00
cma.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compaction.c
mm, compaction: fix wrong pfn handling in __reset_isolation_pfn()
2019-10-14 15:04:01 -07:00
debug_page_ref.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
debug.c
mm/debug.c: PageAnon() is true for PageKsm() pages
2019-11-15 18:34:00 -08:00
dmapool.c
mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options
2019-07-12 11:05:46 -07:00
early_ioremap.c
mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep
2017-12-11 14:54:44 +01:00
fadvise.c
fs: Export generic_fadvise()
2019-08-30 22:43:58 -07:00
failslab.c
mm/failslab.c: by default, do not fail allocations with direct reclaim only
2019-07-12 11:05:43 -07:00
filemap.c
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
2019-12-01 06:29:18 -08:00
frame_vector.c
mm: untag user pointers in get_vaddr_frames
2019-09-25 17:51:41 -07:00
frontswap.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482
2019-06-19 17:09:52 +02:00
gup_benchmark.c
mm/gup: fix memory leak in __gup_benchmark_ioctl
2020-01-04 13:55:09 -08:00
gup.c
mm/gup.c: fix comments of __get_user_pages() and get_user_pages_remote()
2019-12-01 06:29:18 -08:00
highmem.c
mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions
2019-12-10 10:12:55 +01:00
hmm.c
mm/hmm: remove hmm_range_dma_map and hmm_range_dma_unmap
2019-11-23 19:56:45 -04:00
huge_memory.c
mm/huge_memory.c: thp: fix conflict of above-47bit hint address and PMD alignment
2020-01-13 18:19:01 -08:00
hugetlb_cgroup.c
mm: hugetlb controller for cgroups v2
2019-12-16 12:41:40 -08:00
hugetlb.c
mm/hugetlb: defer freeing of huge pages if in non-task context
2020-01-04 13:55:09 -08:00
hwpoison-inject.c
mm/hwpoison-inject: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops
2019-12-01 12:59:09 -08:00
init-mm.c
mm/init-mm.c: include <linux/mman.h> for vm_committed_as_batch
2019-10-19 06:32:32 -04:00
internal.h
mm, pcpu: make zone pcp updates and reset internal to the mm
2019-12-01 12:59:06 -08:00
interval_tree.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 248
2019-06-19 17:09:08 +02:00
Kconfig
mm/Kconfig: fix trivial help text punctuation
2019-12-01 12:59:10 -08:00
Kconfig.debug
mm, page_owner, debug_pagealloc: save and dump freeing stack trace
2019-09-24 15:54:08 -07:00
khugepaged.c
mm/thp: flush file for !is_shmem PageDirty() case in collapse_file()
2019-12-01 12:59:09 -08:00
kmemleak-test.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
kmemleak.c
kmemleak: Do not corrupt the object_list during clean-up
2019-10-14 08:56:16 -07:00
ksm.c
* PPC secure guest support
2019-12-04 11:08:30 -08:00
list_lru.c
mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages
2019-07-12 11:05:44 -07:00
maccess.c
uaccess: Add strict non-pagefault kernel-space read function
2019-11-02 12:39:12 -07:00
madvise.c
mm/madvise.c: use PAGE_ALIGN[ED] for range checking
2019-12-01 12:59:09 -08:00
Makefile
mm: Add write-protect and clean utilities for address space ranges
2019-11-06 13:03:36 +01:00
mapping_dirty_helpers.c
mm: Add write-protect and clean utilities for address space ranges
2019-11-06 13:03:36 +01:00
memblock.c
mm: support memblock alloc on the exact node for sparse_buffer_init()
2019-12-01 12:59:08 -08:00
memcontrol.c
mm: memcg/slab: fix percpu slab vmstats flushing
2020-01-13 18:19:02 -08:00
memfd.c
mm: page cache: store only head pages in i_pages
2019-09-24 15:54:08 -07:00
memory_hotplug.c
mm/memory_hotplug: shrink zones when offlining memory
2020-01-04 13:55:08 -08:00
memory-failure.c
mm/memory-failure.c: use page_shift() in add_to_kill()
2019-12-01 12:59:04 -08:00
memory.c
Linux 5.5-rc3
2019-12-25 10:41:37 +01:00
mempolicy.c
mm, thp: tweak reclaim/compaction effort of local-only and all-node allocations
2020-01-13 18:19:01 -08:00
mempool.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
memremap.c
mm/memory_hotplug: shrink zones when offlining memory
2020-01-04 13:55:08 -08:00
memtest.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
migrate.c
mm: move_pages: return valid node id in status if the page is already on the target node
2020-01-04 13:55:09 -08:00
mincore.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mlock.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mm_init.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
mmap.c
The timekeeping and timers departement provides:
2020-01-27 16:47:05 -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_gather.c
mm: remove quicklist page table caches
2019-09-24 15:54:09 -07:00
mmu_notifier.c
hmm related patches for 5.5
2019-11-30 10:33:14 -08:00
mmzone.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mprotect.c
autonuma: reduce cache footprint when scanning page tables
2019-12-01 12:59:09 -08:00
mremap.c
mm/mmap.c: use IS_ERR_VALUE to check return value of get_unmapped_area
2019-12-01 06:29:19 -08:00
msync.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
nommu.c
mm/mmap.c: rb_parent is not necessary in __vma_link_list()
2019-12-01 06:29:19 -08:00
oom_kill.c
mm/oom: fix pgtables units mismatch in Killed process message
2020-01-04 13:55:09 -08:00
page_alloc.c
mm, debug_pagealloc: don't rely on static keys too early
2020-01-13 18:19:02 -08:00
page_counter.c
memcg: introduce memory.min
2018-06-07 17:34:36 -07:00
page_ext.c
mm, page_owner: fix off-by-one error in __set_page_owner_handle()
2019-10-14 15:04:00 -07:00
page_idle.c
mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
2019-06-29 16:43:45 +08:00
page_io.c
mm/page_io.c: annotate refault stalls from swap_readpage
2019-12-01 12:59:11 -08:00
page_isolation.c
mm/page_isolation.c: convert SKIP_HWPOISON to MEMORY_OFFLINE
2019-12-01 12:59:04 -08:00
page_owner.c
mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
2019-10-19 06:32:31 -04:00
page_poison.c
mm/page_poison.c: fix a typo in a comment
2019-09-24 15:54:08 -07:00
page_vma_mapped.c
mm: introduce page_size()
2019-09-24 15:54:08 -07:00
page-writeback.c
mm/page-writeback.c: improve arithmetic divisions
2020-01-13 18:19:02 -08:00
pagewalk.c
mm: Add a walk_page_mapping() function to the pagewalk code
2019-11-06 13:02:43 +01:00
percpu-internal.h
percpu: convert chunk hints to be based on pcpu_block_md
2019-03-13 12:25:31 -07:00
percpu-km.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
percpu-stats.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
percpu-vm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
percpu.c
bitmap: genericize percpu bitmap region iterators
2020-01-20 16:40:56 +01:00
pgtable-generic.c
asm-generic/mm: stub out p{4,u}d_clear_bad() if __PAGETABLE_P{4,U}D_FOLDED
2019-12-01 06:29:19 -08:00
process_vm_access.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
readahead.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
rmap.c
mm, thp: do not queue fully unmapped pages for deferred split
2019-12-01 12:59:09 -08:00
rodata_test.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
shmem.c
mm/shmem.c: thp, shmem: fix conflict of above-47bit hint address and PMD alignment
2020-01-13 18:19:01 -08:00
shuffle.c
mm: fix -Wmissing-prototypes warnings
2019-10-07 15:47:19 -07:00
shuffle.h
mm: maintain randomization of page free lists
2019-05-14 19:52:48 -07:00
slab_common.c
mm: memcg/slab: call flush_memcg_workqueue() only if memcg workqueue is valid
2020-01-13 18:19:02 -08:00
slab.c
mm, debug_pagealloc: don't rely on static keys too early
2020-01-13 18:19:02 -08:00
slab.h
mm: clean up and clarify lruvec lookup procedure
2019-12-01 12:59:06 -08:00
slob.c
mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)
2019-10-07 15:47:20 -07:00
slub.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-28 10:07:09 -08:00
sparse-vmemmap.c
mm/sparsemem: convert kmalloc_section_memmap() to populate_section_memmap()
2019-07-18 17:08:07 -07:00
sparse.c
mm/memory_hotplug: don't free usage map when removing a re-added early section
2020-01-13 18:19:01 -08:00
swap_cgroup.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
swap_slots.c
mm, swap, get_swap_pages: use entry_size instead of cluster in parameter
2018-08-22 10:52:44 -07:00
swap_state.c
mm: page cache: store only head pages in i_pages
2019-09-24 15:54:08 -07:00
swap.c
mm/swap.c: piggyback lru_add_drain_all() calls
2019-12-01 06:29:19 -08:00
swapfile.c
mm, swap: disallow swapon() on zoned block devices
2019-12-01 06:29:18 -08:00
truncate.c
mm/thp: allow dropping THP from page cache
2019-10-19 06:32:33 -04:00
usercopy.c
usercopy: Avoid HIGHMEM pfn warning
2019-09-17 15:20:17 -07:00
userfaultfd.c
mm: fix typos in comments when calling __SetPageUptodate()
2019-12-01 12:59:10 -08:00
util.c
mm/mmap.c: rb_parent is not necessary in __vma_link_list()
2019-12-01 06:29:19 -08:00
vmacache.c
mm: get rid of vmacache_flush_all() entirely
2018-09-13 15:18:04 -10:00
vmalloc.c
Linux 5.5-rc7
2020-01-20 08:05:16 +01:00
vmpressure.c
mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
2019-10-07 15:47:19 -07:00
vmscan.c
mm: vmscan: protect shrinker idr replace with CONFIG_MEMCG
2019-12-17 20:59:59 -08:00
vmstat.c
mm/memcontrol: use vmstat names for printing statistics
2019-12-04 19:44:11 -08:00
workingset.c
mm: vmscan: detect file thrashing at the reclaim root
2019-12-01 12:59:07 -08:00
z3fold.c
mm/z3fold.c: add inter-page compaction
2019-12-01 12:59:07 -08:00
zbud.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
zpool.c
zpool: add malloc_support_movable to zpool_driver
2019-09-24 15:54:12 -07:00
zsmalloc.c
mm/zsmalloc.c: fix the migrated zspage statistics.
2020-01-04 13:55:09 -08:00
zswap.c
zswap: do not map same object twice
2019-09-24 15:54:12 -07:00