On 06/10/2018 12:21 AM, Filipe Manana wrote:
On Mon, Jun 4, 2018 at 4:43 PM, David Sterba <dste...@suse.com> wrote:Hi, there are some new features and a usual load of cleanups, more details below. Specifically, there's a set of new non-privileged ioctls to allow subvolume listing. It works but still needs a security review as it's a new interface and we might need to do some tweaks to the data structures. The fixes could be considred regressions but may touch the interfaces too. Currently there are no merge conflicts but linux-next has reported a few in the past, originating from other *FS trees. Please pull, thanks. --- User visible features: - added support for the ioctl FS_IOC_FSGETXATTR, per-inode flags, successor of GET/SETFLAGS; now supports only existing flags: append, immutable, noatime, nodump, sync - 3 new unprivileged ioctls to allow users to enumerate subvolumes - dedupe syscall implementation does not restrict the range to 16MiB, though it still splits the whole range to 16MiB chunks - on user demand, rmdir() is able to delete an empty subvolume, export the capability in sysfs - fix inode number types in tracepoints, other cleanups - send: improved speed when dealing with a large removed directory, measurements show decrease from 2000 minutes to 2 minutes on a directory with 2 million entries - pre-commit check of superblock to detect a mysterious in-memory corruption - log message updates Other changes: - orphan inode cleanup improved, does no keep long-standing reservations that could lead up to early ENOSPC in some cases - slight improvement of handling snapshotted NOCOW files by avoiding some unnecessary tree searches - avoid OOM when dealing with many unmergeable small extents at flush time - speedup conversion of free space tree representations from/to bitmap/tree - code refactoring, deletion, cleanups - delayed refs - delayed iput - redundant argument removals - memory barrier cleanups - remove a redundant mutex supposedly excluding several ioctls to run in parallel - new tracepoints for blockgroup manipulation - more sanity checks of compressed headers ---------------------------------------------------------------- The following changes since commit b04e217704b7f879c6b91222b066983a44a7a09f: Linux 4.17-rc7 (2018-05-27 13:01:47 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-4.18-tag for you to fetch changes up to 23d0b79dfaed2305b500b0215b0421701ada6b1a: btrfs: Add unprivileged version of ino_lookup ioctl (2018-05-31 11:35:24 +0200) ---------------------------------------------------------------- Al Viro (1): btrfs: take the last remnants of ->d_fsdata use out Anand Jain (19): btrfs: add comment about BTRFS_FS_EXCL_OP btrfs: rename struct btrfs_fs_devices::list btrfs: cleanup __btrfs_open_devices() drop head pointer btrfs: rename __btrfs_close_devices to close_fs_devices btrfs: rename __btrfs_open_devices to open_fs_devices btrfs: cleanup find_device() drop list_head pointer btrfs: cleanup btrfs_rm_device() promote fs_devices pointer btrfs: move btrfs_raid_type_names values to btrfs_raid_attr table btrfs: move btrfs_raid_group values to btrfs_raid_attr table btrfs: move btrfs_raid_mindev_errorvalues to btrfs_raid_attr table btrfs: reduce uuid_mutex critical section while scanning devices btrfs: use existing cur_devices, cleanup btrfs_rm_device btrfs: document uuid_mutex uasge in read_chunk_tree btrfs: replace uuid_mutex by device_list_mutex in btrfs_open_devicesThis change (commit 542c5908abfe84f7b4c1717492ecc92ea0ea328d, "btrfs: replace uuid_mutex by device_list_mutex in btrfs_open_devices"), at the very least introduces a lockdep warning: [ 865.021049] ====================================================== [ 865.021950] WARNING: possible circular locking dependency detected [ 865.022828] 4.17.0-rc7-btrfs-next-59+ #1 Not tainted [ 865.023491] ------------------------------------------------------ [ 865.024342] fsstress/27897 is trying to acquire lock: [ 865.025070] 0000000099260c12 (&fs_info->reloc_mutex){+.+.}, at: btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.026369] [ 865.026369] but task is already holding lock: [ 865.027206] 000000008dc17c22 (&mm->mmap_sem){++++}, at: vm_mmap_pgoff+0x77/0xe8 [ 865.028251] [ 865.028251] which lock already depends on the new lock. [ 865.028251] [ 865.029482] [ 865.029482] the existing dependency chain (in reverse order) is: [ 865.030523] [ 865.030523] -> #7 (&mm->mmap_sem){++++}: [ 865.031241] _copy_to_user+0x1e/0x63 [ 865.031745] filldir+0x9e/0xef [ 865.032285] dir_emit_dots+0x3b/0xbd [ 865.032881] dcache_readdir+0x22/0xbb [ 865.033502] iterate_dir+0xa3/0x13e [ 865.034131] __do_sys_getdents+0xa1/0x106 [ 865.034821] do_syscall_64+0x51/0x5f [ 865.035423] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.036212] [ 865.036212] -> #6 (&sb->s_type->i_mutex_key#4){++++}: [ 865.037155] start_creating+0x65/0xd2 [ 865.037752] debugfs_create_dir+0xc/0x9b [ 865.038374] blk_mq_debugfs_register+0x30/0xec [ 865.039083] blk_register_queue+0x11e/0x199 [ 865.039753] __device_add_disk+0x36d/0x44b [ 865.040434] sd_probe_async+0xf6/0x19f [sd_mod] [ 865.041136] async_run_entry_fn+0x34/0xe0 [ 865.041811] process_one_work+0x295/0x4b8 [ 865.042446] worker_thread+0x1ab/0x25e [ 865.043032] kthread+0xf5/0xfa [ 865.043568] ret_from_fork+0x3a/0x50 [ 865.044163] [ 865.044163] -> #5 (&q->sysfs_lock){+.+.}: [ 865.044916] blk_mq_sysfs_unregister+0x1d/0x53 [ 865.045576] blk_mq_realloc_hw_ctxs+0x2e/0x410 [ 865.046209] blk_mq_init_allocated_queue+0xaf/0x40d [ 865.046853] blk_mq_init_queue+0x34/0x50 [ 865.047494] loop_add+0xf9/0x27f [loop] [ 865.048110] param_set_lid_init_state+0x8e/0x94 [button] [ 865.048867] do_one_initcall+0x11b/0x2de [ 865.049509] do_init_module+0x5b/0x1ff [ 865.050077] load_module+0x1c78/0x22b5 [ 865.050669] __do_sys_finit_module+0x7b/0x86 [ 865.051288] do_syscall_64+0x51/0x5f [ 865.051886] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.052700] [ 865.052700] -> #4 (loop_index_mutex){+.+.}: [ 865.053473] lo_open+0x17/0x47 [loop] [ 865.054046] __blkdev_get+0x145/0x42a [ 865.054649] blkdev_get+0x1aa/0x2e9 [ 865.055187] do_dentry_open+0x17a/0x288 [ 865.055843] path_openat+0x534/0x699 [ 865.056438] do_filp_open+0x4d/0xa3 [ 865.057026] do_sys_open+0x69/0xee [ 865.057631] do_syscall_64+0x51/0x5f [ 865.058227] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.058971] [ 865.058971] -> #3 (&bdev->bd_mutex){+.+.}: [ 865.059785] __blkdev_get+0x409/0x42a [ 865.060377] blkdev_get+0x1aa/0x2e9 [ 865.060942] blkdev_get_by_path+0x2c/0x5f [ 865.061555] btrfs_get_bdev_and_sb+0x1b/0x97 [btrfs] [ 865.062264] open_fs_devices+0x81/0x1f6 [btrfs] [ 865.063030] btrfs_open_devices+0x5c/0x74 [btrfs] [ 865.063803] btrfs_mount_root+0x1f7/0x45c [btrfs] [ 865.064554] mount_fs+0x64/0x10b [ 865.065116] vfs_kern_mount+0x68/0xce [ 865.069630] btrfs_mount+0x12e/0x764 [btrfs] [ 865.070361] mount_fs+0x64/0x10b [ 865.070962] vfs_kern_mount+0x68/0xce [ 865.071613] do_mount+0x6e5/0x973 [ 865.072161] ksys_mount+0x72/0x97 [ 865.072732] __x64_sys_mount+0x21/0x24 [ 865.073356] do_syscall_64+0x51/0x5f [ 865.073928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.074687] [ 865.074687] -> #2 (&fs_devs->device_list_mutex){+.+.}: [ 865.075596] btrfs_run_dev_stats+0x37/0x2fe [btrfs] [ 865.076339] commit_cowonly_roots+0x87/0x261 [btrfs] [ 865.076921] btrfs_commit_transaction+0x3b8/0x760 [btrfs] [ 865.077691] btrfs_create_uuid_tree+0x9e/0x106 [btrfs] [ 865.078476] open_ctree+0x1c1c/0x1ef9 [btrfs] [ 865.079140] btrfs_mount_root+0x342/0x45c [btrfs] [ 865.079796] mount_fs+0x64/0x10b [ 865.080297] vfs_kern_mount+0x68/0xce [ 865.080902] btrfs_mount+0x12e/0x764 [btrfs] [ 865.081566] mount_fs+0x64/0x10b [ 865.082165] vfs_kern_mount+0x68/0xce [ 865.082778] do_mount+0x6e5/0x973 [ 865.083308] ksys_mount+0x72/0x97 [ 865.083869] __x64_sys_mount+0x21/0x24 [ 865.084453] do_syscall_64+0x51/0x5f [ 865.084991] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.085746] [ 865.085746] -> #1 (&fs_info->tree_log_mutex){+.+.}: [ 865.086729] btrfs_commit_transaction+0x366/0x760 [btrfs] [ 865.087580] btrfs_create_uuid_tree+0x9e/0x106 [btrfs] [ 865.088412] open_ctree+0x1c1c/0x1ef9 [btrfs] [ 865.089092] btrfs_mount_root+0x342/0x45c [btrfs] [ 865.089752] mount_fs+0x64/0x10b [ 865.090256] vfs_kern_mount+0x68/0xce [ 865.090895] btrfs_mount+0x12e/0x764 [btrfs] [ 865.091564] mount_fs+0x64/0x10b [ 865.092090] vfs_kern_mount+0x68/0xce [ 865.092662] do_mount+0x6e5/0x973 [ 865.093224] ksys_mount+0x72/0x97 [ 865.093789] __x64_sys_mount+0x21/0x24 [ 865.094344] do_syscall_64+0x51/0x5f [ 865.094887] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.095579] [ 865.095579] -> #0 (&fs_info->reloc_mutex){+.+.}: [ 865.096401] __mutex_lock+0x81/0x3ee [ 865.097026] btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.097885] start_transaction+0x29f/0x377 [btrfs] [ 865.098679] btrfs_dirty_inode+0x3c/0xbb [btrfs] [ 865.099349] touch_atime+0x82/0xa1 [ 865.099899] btrfs_file_mmap+0x2d/0x44 [btrfs] [ 865.100590] mmap_region+0x27b/0x421 [ 865.101153] do_mmap+0x3f0/0x492 [ 865.101673] vm_mmap_pgoff+0xa1/0xe8 [ 865.102167] ksys_mmap_pgoff+0x18d/0x1b1 [ 865.102641] do_syscall_64+0x51/0x5f [ 865.103126] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.103914] [ 865.103914] other info that might help us debug this: [ 865.103914] [ 865.105096] Chain exists of: [ 865.105096] &fs_info->reloc_mutex --> &sb->s_type->i_mutex_key#4 --> &mm->mmap_sem [ 865.105096] [ 865.106636] Possible unsafe locking scenario: [ 865.106636] [ 865.107435] CPU0 CPU1 [ 865.108071] ---- ---- [ 865.108725] lock(&mm->mmap_sem); [ 865.109243] lock(&sb->s_type->i_mutex_key#4); [ 865.110144] lock(&mm->mmap_sem); [ 865.110961] lock(&fs_info->reloc_mutex); [ 865.111568] [ 865.111568] *** DEADLOCK *** [ 865.111568] [ 865.112401] 3 locks held by fsstress/27897: [ 865.112953] #0: 000000008dc17c22 (&mm->mmap_sem){++++}, at: vm_mmap_pgoff+0x77/0xe8 [ 865.113955] #1: 00000000bf2b52fc (sb_writers#11){.+.+}, at: touch_atime+0x3b/0xa1 [ 865.115020] #2: 00000000a7121e15 (sb_internal#2){.+.+}, at: start_transaction+0x1b6/0x377 [btrfs] [ 865.116274] [ 865.116274] stack backtrace: [ 865.116937] CPU: 3 PID: 27897 Comm: fsstress Not tainted 4.17.0-rc7-btrfs-next-59+ #1 [ 865.118063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014 [ 865.119676] Call Trace: [ 865.120092] dump_stack+0x5f/0x86 [ 865.120641] print_circular_bug.isra.21+0x1c7/0x1d4 [ 865.121367] __lock_acquire+0xb97/0xf09 [ 865.121929] ? lock_acquire+0x16a/0x1af [ 865.122524] lock_acquire+0x16a/0x1af [ 865.123101] ? btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.123854] __mutex_lock+0x81/0x3ee [ 865.124438] ? btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.125233] ? module_assert_mutex_or_preempt+0x13/0x2d [ 865.126011] ? btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.126839] ? join_transaction+0x376/0x38d [btrfs] [ 865.127545] ? btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.128277] btrfs_record_root_in_trans+0x43/0x62 [btrfs] [ 865.129022] start_transaction+0x29f/0x377 [btrfs] [ 865.129726] btrfs_dirty_inode+0x3c/0xbb [btrfs] [ 865.130326] touch_atime+0x82/0xa1 [ 865.130863] btrfs_file_mmap+0x2d/0x44 [btrfs] [ 865.131533] mmap_region+0x27b/0x421 [ 865.132081] do_mmap+0x3f0/0x492 [ 865.132561] vm_mmap_pgoff+0xa1/0xe8 [ 865.133097] ksys_mmap_pgoff+0x18d/0x1b1 [ 865.133540] ? do_syscall_64+0x12/0x5f [ 865.134059] do_syscall_64+0x51/0x5f [ 865.134648] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 865.135358] RIP: 0033:0x7f88758e2ad3 [ 865.135909] RSP: 002b:00007ffd668823e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 865.136928] RAX: ffffffffffffffda RBX: 000000000001e000 RCX: 00007f88758e2ad3 [ 865.137804] RDX: 0000000000000002 RSI: 000000000000a7ef RDI: 0000000000000000 [ 865.138734] RBP: 0000000000000000 R08: 0000000000000003 R09: 000000000001e000 [ 865.139668] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000002 [ 865.140601] R13: 000000000000a7ef R14: 0000000000000002 R15: 0000000000000003 I haven't looked enough to see if it's really possible to deadlock. Also, after a quick glance, specially after reading the locking rules comment at the top of volumes.c which says: * uuid_mutex (global lock) * ------------------------ * protects the fs_uuids list that tracks all per-fs fs_devices, resulting from * the SCAN_DEV ioctl registration or from mount either implicitly (the first * device) or requested by the device= mount option * * the mutex can be very coarse and can cover long-running operations * * protects: updates to fs_devices counters like missing devices, rw devices, * seeding, structure cloning, openning/closing devices at mount/umount time generates some confusion since btrfs_open_devices(), after that commit, no longer takes the uuid_mutex and it updates some fs_devices counters (opened, open_devices, etc).
As uuid_mutex is a global fs_uuids lock for the per fsid operations doesn't make any sense. This problem is reproducible only for-4.18, misc-next if fine. I am looking deeper. Thanks for the report. -Anand
Always reproducible by running btrfs/004 from fstests.btrfs: drop uuid_mutex in btrfs_dev_replace_finishing btrfs: drop uuid_mutex in btrfs_destroy_dev_replace_tgtdev btrfs: use common variable for fs_devices in btrfs_destroy_dev_replace_tgtdev btrfs: add prefix "balance:" for log messages btrfs: fix describe_relocation when printing unknown flags Chengguang Xu (1): btrfs: return original error code when failing from option parsing Colin Ian King (1): btrfs: send: fix spelling mistake: "send_in_progres" -> "send_in_progress" David Sterba (38): btrfs: tracepoints, use correct type for inode number btrfs: tracepoints, use %llu instead of %Lu btrfs: tracepoints, drop unnecessary ULL casts btrfs: tracepoints, fix whitespace in strings btrfs: tracepoints, use extended format with UUID where possible btrfs: tests: pass fs_info to extent_map tests btrfs: use fs_info for btrfs_handle_em_exist tracepoint btrfs: squeeze btrfs_dev_replace_continue_on_mount to its caller btrfs: make success path out of btrfs_init_dev_replace_tgtdev more clear btrfs: export and rename free_device btrfs: move btrfs_init_dev_replace_tgtdev to dev-replace.c and make static btrfs: move volume_mutex to callers of btrfs_rm_device btrfs: move clearing of EXCL_OP out of __cancel_balance btrfs: add proper safety check before resuming dev-replace btrfs: add sanity check when resuming balance after mount btrfs: cleanup helpers that reset balance state btrfs: remove wrong use of volume_mutex from btrfs_dev_replace_start btrfs: kill btrfs_fs_info::volume_mutex btrfs: track running balance in a simpler way btrfs: move and comment read-only check in btrfs_cancel_balance btrfs: drop lock parameter from update_ioctl_balance_args and rename btrfs: use mutex in btrfs_resume_balance_async btrfs: open code set_balance_control btrfs: remove redundant btrfs_balance_control::fs_info btrfs: introduce conditional wakeup helpers btrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups btrfs: replace waitqueue_actvie with cond_wake_up btrfs: rename btrfs_update_iflags to reflect which flags it touches btrfs: rename btrfs_mask_flags to reflect which flags it touches btrfs: rename check_flags to reflect which flags it touches btrfs: rename btrfs_flags_to_ioctl to reflect which flags it touches btrfs: add helpers for FS_XFLAG_* conversion btrfs: add FS_IOC_FSGETXATTR ioctl btrfs: add FS_IOC_FSSETXATTR ioctl btrfs: unify naming of flags variables for SETFLAGS and XFLAGS btrfs: use kvzalloc for EXTENT_SAME temporary data btrfs: tests: add helper for error messages and update them btrfs: tests: drop newline from test_msg strings Ethan Lien (2): btrfs: lift some btrfs_cross_ref_exist checks in nocow path btrfs: balance dirty metadata pages in btrfs_finish_ordered_io Gu JinXiang (2): btrfs: drop unused parameter qgroup_reserved btrfs: drop useless member qgroup_reserved of btrfs_pending_snapshot Gu Jinxiang (3): btrfs: remove unused fs_info parameter btrfs: do reverse path readahead in btrfs_shrink_device btrfs: propagate failures of __exclude_logged_extent to upper caller Howard McLauchlan (3): btrfs: clean up le_bitmap_{set, clear}() btrfs: optimize free space tree bitmap conversion btrfs: remove unused le_test_bit() Kees Cook (1): btrfs: raid56: Remove VLA usage Liu Bo (7): Btrfs: add parent_transid parameter to veirfy_level_key Btrfs: remove superfluous free_extent_buffer in read_block_for_search Btrfs: use more straightforward extent_buffer_uptodate check Btrfs: move get root out of btrfs_search_slot to a helper Btrfs: grab write lock directly if write_lock_level is the max level Btrfs: remove always true check in unlock_up Btrfs: remove unused check of skip_locking Lu Fengqi (3): btrfs: drop unused space_info parameter from create_space_info btrfs: Remove fs_info argument from btrfs_uuid_tree_add btrfs: Remove fs_info argument from btrfs_uuid_tree_rem Misono Tomohiro (5): btrfs: Move may_destroy_subvol() from ioctl.c to inode.c btrfs: Factor out the main deletion process from btrfs_ioctl_snap_destroy() btrfs: Allow rmdir(2) to delete an empty subvolume btrfs: sysfs: Add entry which shows if rmdir can work on subvolumes btrfs: use error code returned by btrfs_read_fs_root_no_name in search ioctl Nikolay Borisov (54): btrfs: Replace owner argument in add_pinned_bytes with a boolean btrfs: Drop delayed_refs argument from btrfs_check_delayed_seq btrfs: Use while loop instead of labels in __endio_write_update_ordered btrfs: Fix lock release order btrfs: Consolidate error checking for btrfs_alloc_chunk btrfs: Sink extent_tree arguments in try_release_extent_mapping btrfs: Remove map argument from try_release_extent_state btrfs: Remove redundant tree argument from extent_readpages btrfs: Use list_empty instead of list_empty_careful btrfs: Remove tree argument from extent_writepages btrfs: Remove btrfs_wait_and_free_delalloc_work btrfs: Drop add_delayed_ref_head fs_info parameter btrfs: Drop fs_info parameter from add_delayed_data_ref btrfs: Drop fs_info parameter from btrfs_merge_delayed_refs btrfs: Remove delayed_iput parameter of btrfs_start_delalloc_roots btrfs: Remove delayed_iput parameter from btrfs_start_delalloc_inodes btrfs: Remove delay_iput parameter from __start_delalloc_inodes btrfs: Remove delayed_iput member from btrfs_delalloc_work btrfs: Unexport btrfs_alloc_delalloc_work btrfs: Remove devid parameter from btrfs_rmap_block btrfs: Factor out common delayed refs init code btrfs: Use init_delayed_ref_common in add_delayed_tree_ref btrfs: Use init_delayed_ref_common in add_delayed_data_ref btrfs: Open-code add_delayed_tree_ref btrfs: Open-code add_delayed_data_ref btrfs: Introduce init_delayed_ref_head btrfs: Use init_delayed_ref_head in add_delayed_ref_head btrfs: split delayed ref head initialization and addition btrfs: Add assert in __btrfs_del_delalloc_inode btrfs: Make btrfs_init_dummy_trans initialize trans' fs_info field btrfs: Remove fs_info argument from add_block_group_free_space btrfs: Remove fs_info argument from __add_block_group_free_space btrfs: Remove fs_info argument from __add_to_free_space_tree btrfs: Remove fs_info parameter from add_new_free_space_info btrfs: Remove fs_info argument from add_new_free_space btrfs: Remove fs_info parameter from remove_block_group_free_space btrfs: Remove fs_info argument from convert_free_space_to_bitmaps btrfs: Remove fs_info parameter from convert_free_space_to_extents btrfs: Remove fs_info argument from update_free_space_extent_count btrfs: Remove fs_info argument from modify_free_space_bitmap btrfs: Remove fs_info argument from add_free_space_extent btrfs: Remove fs_info argument from remove_free_space_extent btrfs: Remove fs_info argument from __remove_from_free_space_tree btrfs: Remove fs_info argument from remove_from_free_space_tree btrfs: Remove fs_info argument from add_to_free_space_tree btrfs: Remove fs_info argument from populate_free_space_tree btrfs: Unexport and rename btrfs_invalidate_inodes btrfs: Remove stale comment about select_delayed_ref btrfs: Remove fs_info argument from alloc_reserved_tree_block btrfs: Simplify alloc_reserved_tree_block interface btrfs: Pass btrfs_delayed_extent_op to alloc_reserved_tree_block btrfs: Streamline shared ref check in alloc_reserved_tree_block btrfs: Factor out read portion of btrfs_get_blocks_direct btrfs: Factor out write portion of btrfs_get_blocks_direct Omar Sandoval (16): Btrfs: update stale comments referencing vmtruncate() Btrfs: fix error handling in btrfs_truncate_inode_items() Btrfs: don't BUG_ON() in btrfs_truncate_inode_items() Btrfs: stop creating orphan items for truncate Btrfs: get rid of BTRFS_INODE_HAS_ORPHAN_ITEM Btrfs: delete dead code in btrfs_orphan_commit_root() Btrfs: don't return ino to ino cache if inode item removal fails Btrfs: refactor btrfs_evict_inode() reserve refill dance Btrfs: fix ENOSPC caused by orphan items reservations Btrfs: get rid of unused orphan infrastructure Btrfs: renumber BTRFS_INODE_ runtime flags and switch to enums Btrfs: reserve space for O_TMPFILE orphan item deletion Btrfs: allow empty subvol= again Btrfs: fix clone vs chattr NODATASUM race Btrfs: fix memory and mount leak in btrfs_ioctl_rm_dev_v2() Btrfs: clean up error handling in btrfs_truncate() Qu Wenruo (15): btrfs: print-tree: Add eb locking status output for debug build btrfs: trace: Remove unnecessary fs_info parameter for btrfs__reserve_extent event class btrfs: trace: Add trace points for unused block groups btrfs: trace: Allow trace_qgroup_update_counters() to record old rfer/excl value btrfs: qgroup: Allow trace_btrfs_qgroup_account_extent() to record its transid btrfs: Move btrfs_check_super_valid() to avoid forward declaration btrfs: Refactor btrfs_check_super_valid btrfs: Do super block verification before writing it to disk btrfs: qgroup: Search commit root for rescan to avoid missing extent btrfs: qgroup: Finish rescan when hit the last leaf of extent tree btrfs: compression: Add linux/sizes.h for compression.h btrfs: lzo: document the compressed data format btrfs: lzo: Add header length check to avoid potential out-of-bounds access btrfs: lzo: Harden inline lzo compressed extent decompression btrfs: qgroup: show more meaningful qgroup_rescan_init error message Robbie Ko (2): btrfs: incremental send, move allocation until it's needed in orphan_dir_info btrfs: incremental send, improve rmdir performance for large directory Su Yue (3): btrfs: rename btrfs_get_block_group_info and make it static btrfs: return error value if create_io_em failed in cow_file_range btrfs: return ENOMEM if path allocation fails in btrfs_cross_ref_exist Timofey Titovets (3): Btrfs: split btrfs_extent_same Btrfs: dedupe_file_range ioctl: remove 16MiB restriction Btrfs: reuse cmp workspace in EXTENT_SAME ioctl Tomohiro Misono (4): btrfs: sysfs: Use enum/define value for feature array definitions btrfs: Add unprivileged ioctl which returns subvolume information btrfs: Add unprivileged ioctl which returns subvolume's ROOT_REF btrfs: Add unprivileged version of ino_lookup ioctl fs/btrfs/btrfs_inode.h | 22 +- fs/btrfs/compression.c | 7 +- fs/btrfs/compression.h | 2 + fs/btrfs/ctree.c | 123 +-- fs/btrfs/ctree.h | 76 +- fs/btrfs/delayed-inode.c | 9 +- fs/btrfs/delayed-ref.c | 275 +++---- fs/btrfs/delayed-ref.h | 5 +- fs/btrfs/dev-replace.c | 150 +++- fs/btrfs/disk-io.c | 391 +++++---- fs/btrfs/extent-tree.c | 253 +++--- fs/btrfs/extent_io.c | 62 +- fs/btrfs/extent_io.h | 20 +- fs/btrfs/extent_map.c | 6 +- fs/btrfs/extent_map.h | 3 +- fs/btrfs/free-space-cache.c | 6 +- fs/btrfs/free-space-tree.c | 192 +++-- fs/btrfs/free-space-tree.h | 8 - fs/btrfs/inode.c | 1371 ++++++++++++++++---------------- fs/btrfs/ioctl.c | 1210 ++++++++++++++++++---------- fs/btrfs/locking.c | 34 +- fs/btrfs/lzo.c | 76 +- fs/btrfs/ordered-data.c | 14 +- fs/btrfs/print-tree.c | 21 + fs/btrfs/qgroup.c | 69 +- fs/btrfs/raid56.c | 38 +- fs/btrfs/relocation.c | 8 +- fs/btrfs/scrub.c | 1 + fs/btrfs/send.c | 46 +- fs/btrfs/super.c | 7 +- fs/btrfs/sysfs.c | 52 +- fs/btrfs/sysfs.h | 4 +- fs/btrfs/tests/btrfs-tests.c | 4 +- fs/btrfs/tests/btrfs-tests.h | 6 +- fs/btrfs/tests/extent-buffer-tests.c | 56 +- fs/btrfs/tests/extent-io-tests.c | 75 +- fs/btrfs/tests/extent-map-tests.c | 90 ++- fs/btrfs/tests/free-space-tests.c | 177 +++-- fs/btrfs/tests/free-space-tree-tests.c | 129 +-- fs/btrfs/tests/inode-tests.c | 312 ++++---- fs/btrfs/tests/qgroup-tests.c | 100 +-- fs/btrfs/transaction.c | 15 +- fs/btrfs/transaction.h | 1 - fs/btrfs/tree-log.c | 28 +- fs/btrfs/uuid-tree.c | 10 +- fs/btrfs/volumes.c | 506 ++++++------ fs/btrfs/volumes.h | 24 +- include/trace/events/btrfs.h | 323 ++++---- include/uapi/linux/btrfs.h | 97 +++ 49 files changed, 3579 insertions(+), 2935 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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