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Subject[GIT PULL] Btrfs
Hi Linus,

My for-linus-4.7 branch:

git:// for-linus-4.7

Has our merge window series of cleanups and fixes. These target a wide
range of issues, but do include some important fixes for qgroups,
O_DIRECT, and fsync handling. Jeff Mahoney moved around a few
definitions to make them easier for userland to consume.

Also whiteout support is included now that issues with overlayfs have
been cleared up.

I have one more fix pending for page faults during btrfs_copy_from_user,
but I wanted to get this bulk out the door first.

David Sterba (28) commits (+343/-247):
btrfs: introduce raid-type to error-code table, for minimum device constraint (+16/-1)
btrfs: switch to common message helpers in open_ctree, adjust messages (+50/-52)
btrfs: reuse existing variable in scrub_stripe, reduce stack usage (+9/-10)
btrfs: send: use vmalloc only as fallback for clone_sources_tmp (+8/-5)
btrfs: pass number of devices to btrfs_check_raid_min_devices (+20/-15)
btrfs: use dynamic allocation for root item in create_subvol (+37/-28)
btrfs: use existing device constraints table btrfs_raid_array (+9/-14)
btrfs: clone: use vmalloc only as fallback for nodesize bufer (+8/-5)
btrfs: send: use temporary variable to store allocation size (+8/-6)
btrfs: make find_workspace warn if there are no workspaces (+14/-0)
btrfs: rename and document compression workspace members (+19/-16)
btrfs: send: use vmalloc only as fallback for clone_roots (+7/-4)
btrfs: add read-only check to sysfs handler of features (+3/-0)
btrfs: send: use vmalloc only as fallback for read_buf (+7/-4)
btrfs: send: use vmalloc only as fallback for send_buf (+7/-4)
btrfs: ioctl: reorder exclusive op check in RM_DEV (+11/-12)
btrfs: ioctl: reorder exclusive op check in RM_DEV (+11/-12)
btrfs: add write protection to SET_FEATURES ioctl (+13/-3)
btrfs: kill unused writepage_io_hook callback (+16/-24)
btrfs: rename btrfs_find_device_by_user_input (+13/-10)
btrfs: build fixup for qgroup_account_snapshot (+5/-0)
btrfs: sysfs: protect reading label by lock (+7/-1)
btrfs: make find_workspace always succeed (+12/-8)
btrfs: preallocate compression workspaces (+16/-0)
btrfs: add check to sysfs handler of label (+3/-0)
btrfs: rename __check_raid_min_devices (+2/-2)
btrfs: GFP_NOFS does not GFP_HIGHMEM (+4/-4)
btrfs: rename flags for vol args v2 (+8/-7)

Anand Jain (20) commits (+449/-381):
btrfs: fix lock dep warning, move scratch dev out of device_list_mutex and uuid_mutex (+12/-5)
btrfs: fix lock dep warning move scratch super outside of chunk_mutex (+5/-4)
btrfs: make use of btrfs_scratch_superblocks() in btrfs_rm_device() (+13/-64)
btrfs: enhance btrfs_find_device_by_user_input() to check device path (+3/-4)
btrfs: cleanup assigning next active device with a check (+48/-22)
btrfs: create helper function __check_raid_min_devices() (+32/-19)
btrfs: create helper btrfs_find_device_by_user_input() (+23/-23)
btrfs: clean up and optimize __check_raid_min_device() (+19/-24)
btrfs: create a helper function to read the disk super (+52/-35)
btrfs: rename btrfs_std_error to btrfs_handle_fs_error (+31/-31)
btrfs: pass the right error code to the btrfs_std_error (+2/-2)
btrfs: make use of btrfs_find_device_by_user_input() (+37/-63)
btrfs: move error handling code together in ctree.h (+40/-38)
btrfs: refactor btrfs_dev_replace_start for reuse (+41/-23)
btrfs: s_bdev is not null after missing replace (+6/-3)
btrfs: remove unused function btrfs_assert() (+0/-1)
btrfs: introduce device delete by devid (+73/-5)
btrfs: optimize check for stale device (+2/-1)
btrfs: remove save_error_info() (+6/-10)
btrfs: use fs_info directly (+4/-4)

Filipe Manana (13) commits (+404/-180):
Btrfs: fix race between fsync and direct IO writes for prealloc extents (+37/-6)
Btrfs: fix empty symlink after creating symlink and fsync parent dir (+1/-1)
Btrfs: add semaphore to synchronize direct IO writes with fsync (+77/-118)
Btrfs: fix inode leak on failure to setup whiteout inode in rename (+6/-6)
Btrfs: fix for incorrect directory entries after fsync log replay (+8/-5)
Btrfs: fix race between block group relocation and nocow writes (+81/-1)
Btrfs: fix number of transaction units for renames with whiteout (+8/-1)
Btrfs: don't wait for unrelated IO to finish before relocation (+38/-19)
Btrfs: pin logs earlier when doing a rename exchange operation (+4/-4)
Btrfs: don't do unnecessary delalloc flushes when relocating (+79/-7)
Btrfs: unpin logs if rename exchange operation fails (+36/-2)
Btrfs: unpin log if rename operation fails (+27/-1)
Btrfs: pin log earlier when renaming (+2/-9)

Jeff Mahoney (8) commits (+1161/-1090):
btrfs: uapi/linux/btrfs.h migration, move struct btrfs_ioctl_defrag_range_args (+37/-32)
btrfs: uapi/linux/btrfs_tree.h migration, item types and defines (+967/-948)
btrfs: uapi/linux/btrfs.h migration, document subvol flags (+14/-3)
btrfs: uapi/linux/btrfs.h migration, move BTRFS_LABEL_SIZE (+1/-1)
btrfs: uapi/linux/btrfs.h migration, move balance flags (+64/-46)
btrfs: uapi/linux/btrfs.h migration, move feature flags (+31/-25)
btrfs: uapi/linux/btrfs.h migration, qgroup limit flags (+21/-9)
btrfs: uapi/linux/btrfs_tree.h, use __u8 and __u64 (+26/-26)

Liu Bo (4) commits (+39/-15):
Btrfs: make mapping->writeback_index point to the last written page (+26/-6)
Btrfs: do not create empty block group if we have allocated data (+8/-1)
Btrfs: cleanup error handling in extent_write_cached_pages (+2/-5)
Btrfs: fix divide error upon chunk's stripe_len (+3/-3)

Luis de Bethencourt (3) commits (+25/-11):
btrfs: fix mixed block count of available space (+13/-3)
btrfs: avoid overflowing f_bfree (+5/-1)
btrfs: fix typos in comments (+7/-7)

Scott Talbert (1) commits (+2/-0):
btrfs: fix memory leak during RAID 5/6 device replacement

Adam Borowski (1) commits (+1/-1):
btrfs: fix int32 overflow in shrink_delalloc().

Luke Dashjr (1) commits (+24/-2):
btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl

Satoru Takeuchi (1) commits (+3/-3):
btrfs: Simplify conditions about compress while mapping btrfs flags to inode flags

Ashish Samant (1) commits (+1/-1):
btrfs: Fix BUG_ON condition in scrub_setup_recheck_block()

Zygo Blaxell (1) commits (+15/-3):
btrfs: don't force mounts to wait for cleaner_kthread to delete one or more subvolumes

Vincent Stehlé (1) commits (+1/-1):
Btrfs: fix fspath error deallocation

Qu Wenruo (1) commits (+105/-24):
btrfs: qgroup: Fix qgroup accounting when creating snapshot

Dan Carpenter (1) commits (+6/-0):
btrfs: send: silence an integer overflow warning

Geert Uytterhoeven (1) commits (+20/-21):
Btrfs: Refactor btrfs_lock_cluster() to kill compiler warning

Josef Bacik (1) commits (+16/-2):
Btrfs: remove BUG_ON()'s in btrfs_map_block

Chandan Rajendra (1) commits (+3/-1):
Btrfs: __btrfs_buffered_write: Pass valid file offset when releasing delalloc space

Dan Fuhry (1) commits (+257/-7):
btrfs: add support for RENAME_EXCHANGE and RENAME_WHITEOUT

Austin S. Hemmelgarn (1) commits (+2/-4):
btrfs: allow balancing to dup with multi-device

Total: (90) commits (+2877/-1994)

fs/btrfs/backref.c | 2 +-
fs/btrfs/btrfs_inode.h | 10 +
fs/btrfs/compression.c | 85 ++-
fs/btrfs/ctree.c | 6 +-
fs/btrfs/ctree.h | 1123 +++------------------------------------
fs/btrfs/delayed-inode.c | 2 +-
fs/btrfs/dev-replace.c | 101 ++--
fs/btrfs/dev-replace.h | 4 +-
fs/btrfs/disk-io.c | 130 ++---
fs/btrfs/extent-tree.c | 167 +++++-
fs/btrfs/extent_io.c | 82 +--
fs/btrfs/extent_io.h | 1 -
fs/btrfs/file.c | 6 +-
fs/btrfs/inode-item.c | 2 +-
fs/btrfs/inode.c | 466 +++++++++++++---
fs/btrfs/ioctl.c | 198 +++++--
fs/btrfs/ordered-data.c | 26 +-
fs/btrfs/ordered-data.h | 6 +-
fs/btrfs/relocation.c | 13 +-
fs/btrfs/root-tree.c | 4 +-
fs/btrfs/scrub.c | 25 +-
fs/btrfs/send.c | 62 ++-
fs/btrfs/super.c | 60 ++-
fs/btrfs/sysfs.c | 14 +-
fs/btrfs/transaction.c | 138 ++++-
fs/btrfs/tree-log.c | 74 +--
fs/btrfs/volumes.c | 454 +++++++++-------
fs/btrfs/volumes.h | 57 +-
include/uapi/linux/btrfs.h | 188 ++++++-
include/uapi/linux/btrfs_tree.h | 966 +++++++++++++++++++++++++++++++++
30 files changed, 2678 insertions(+), 1794 deletions(-)

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