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649876 Commits

Author SHA1 Message Date
David Sterba 38c3146408 btrfs: merge length input and output parameter in compress_pages 
The length parameter is basically duplicated for input and output in the
top level caller of the compress_pages chain. We can simply use one
variable for that and reduce stack consumption. The compression
implementation will sink the parameter to a local variable so everything
works as before.

Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 14:26:35 +01:00
David Sterba 52f75f4fe7 btrfs: constify name of subvolume in creation helpers 
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 14:26:08 +01:00
David Sterba 14a3357b40 btrfs: constify buffers used by compression helpers 
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 14:26:07 +01:00
David Sterba 9ed573674a btrfs: constify input buffer of btrfs_csum_data 
The function does not modify the input buffer, also update a typecast in
one caller.

Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 14:26:07 +01:00
David Sterba da353f6b30 btrfs: constify device path passed to relevant helpers 
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 14:26:07 +01:00
Nikolay Borisov 0b581701d9 btrfs: make btrfs_inode_resume_unlocked_dio take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:12 +01:00
Nikolay Borisov abcefb1eee btrfs: make btrfs_inode_block_unlocked_dio take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:12 +01:00
Nikolay Borisov cef415af20 btrfs: Make btrfs_add_nondir take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:12 +01:00
Nikolay Borisov db0a669fb0 btrfs: Make btrfs_add_link take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov 9e3e97f45c btrfs: Make btrfs_del_delalloc_inode take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov fc4f21b1d8 btrfs: Make get_extent_t take btrfs_inode 
In addition to changing the signature, this patch also switches
all the functions which are used as an argument to also take btrfs_inode.
Namely those are: btrfs_get_extent and btrfs_get_extent_filemap.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov 1c8c9c5216 btrfs: Make check_extent_to_block take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov a2f392e401 btrfs: Make clone_update_extent_map take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov 6fc0ef6870 btrfs: Make btrfs_clear_bit_hook take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov 9cdc512410 btrfs: Make btrfs_extent_item_to_extent_map take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:11 +01:00
Nikolay Borisov 19df27a9e4 btrfs: make btrfs_log_inode_parent take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:10 +01:00
Nikolay Borisov aefa6115c0 btrfs: Make check_parent_dirs_for_sync take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:10 +01:00
Nikolay Borisov 73f2e545b6 btrfs: Make btrfs_orphan_add take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:10 +01:00
Nikolay Borisov 3d6ae7bb6a btrfs: make btrfs_orphan_del take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:10 +01:00
Nikolay Borisov 7ab7956ec3 btrfs: make btrfs_free_io_failure_record take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:10 +01:00
Nikolay Borisov b30cb441fc btrfs: make clean_io_failure take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:10 +01:00
Nikolay Borisov 9d4f7f8ad6 btrfs: make repair_io_failure take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:09 +01:00
Nikolay Borisov f898ac6ae3 btrfs: make check_compressed_csum take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:09 +01:00
Nikolay Borisov 0970a22e58 btrfs: make btrfs_print_data_csum_error take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:09 +01:00
Nikolay Borisov 4ac1f4acd7 btrfs: make free_io_failure take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:09 +01:00
Nikolay Borisov 2cff578cfc btrfs: Make lock_and_cleanup_extent_if_need take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:09 +01:00
Nikolay Borisov 85b7ab6705 btrfs: Make check_can_nocow take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:09 +01:00
Nikolay Borisov a776c6fa1f btrfs: Make btrfs_lookup_ordered_range take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:08 +01:00
Nikolay Borisov 7a6d706795 btrfs: Make btrfs_mark_extent_written take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:08 +01:00
Nikolay Borisov a012a74e78 btrfs: Make fill_holes take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:08 +01:00
Nikolay Borisov 35339c245b btrfs: Make hole_mergeable take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:08 +01:00
Nikolay Borisov dcdbc059f0 btrfs: Make btrfs_drop_extent_cache take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:08 +01:00
Nikolay Borisov 46e5979183 btrfs: Make btrfs_requeue_inode_defrag take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 6158e1ce1c btrfs: Make (__)btrfs_add_inode_defrag take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 691fa05967 btrfs: all btrfs_delalloc_release_metadata take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 9f3db423f9 btrfs: Make btrfs_delalloc_reserve_metadata take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 703b391a03 btrfs: Make btrfs_orphan_release_metadata take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 8ed7a2a0e0 btrfs: Make btrfs_orphan_reserve_metadata take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 0e6bf9b13c btrfs: Make calc_csum_metadata_size take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov baa3ba39b9 btrfs: Make drop_outstanding_extent take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:07 +01:00
Nikolay Borisov 04f4f91653 btrfs: make btrfs_alloc_data_chunk_ondemand take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:06 +01:00
Nikolay Borisov 70ddc553b5 btrfs: make btrfs_is_free_space_inode take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:06 +01:00
Nikolay Borisov 6ef06d2790 btrfs: Make btrfs_i_size_write take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:06 +01:00
Nikolay Borisov 877574e254 btrfs: Make btrfs_set_inode_index take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:06 +01:00
Nikolay Borisov 4c570655f4 btrfs: make btrfs_set_inode_index_count take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:06 +01:00
Nikolay Borisov 8e7611cf38 btrfs: Make btrfs_insert_dir_item take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:06 +01:00
Nikolay Borisov d0a0b78de4 btrfs: Make btrfs_log_all_parents take btrfs_inode 
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-28 11:30:05 +01:00
Liu Bo 6288d6eabc Btrfs: use the correct type when creating cow dio extent 
'BTRFS_ORDERED_REGULAR' was introduced for the cow case in patch
'Btrfs: specify a new ordered extent type for create_io_em',
but it missed the directIO cow case.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
 2017-02-22 15:55:03 -08:00
Filipe Manana b1517622f2 Btrfs: fix deadlock between dedup on same file and starting writeback 
If we are deduping two ranges of the same file we need to make sure that
we lock all pages in ascending order, that is, lock first the pages from
the range with lower offset and then the pages from the other range, as
otherwise we can deadlock with a concurrent task that is starting delalloc
(writeback). Example trace:

[74073.052218] INFO: task kworker/u32:10:17997 blocked for more than 120 seconds.
[74073.053889]       Tainted: G        W       4.9.0-rc7-btrfs-next-36+ #1
[74073.055071] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[74073.056696] kworker/u32:10  D    0 17997      2 0x00000000
[74073.058606] Workqueue: writeback wb_workfn (flush-btrfs-53176)
[74073.061370]  ffff880031e79858 ffff8802159d2580 ffff880237004580 ffff880031e79240
[74073.064784]  ffff88023f4978c0 ffffc9000817b638 ffffffff814c15e1 0000000000000000
[74073.068386]  ffff88023f4978d8 ffff88023f4978c0 000000000017b620 ffff880031e79240
[74073.071712] Call Trace:
[74073.072884]  [<ffffffff814c15e1>] ? __schedule+0x48f/0x6f4
[74073.075395]  [<ffffffff814c1c8b>] ? bit_wait+0x2f/0x2f
[74073.077511]  [<ffffffff814c18d2>] schedule+0x8c/0xa0
[74073.079440]  [<ffffffff814c4b36>] schedule_timeout+0x43/0xff
[74073.081637]  [<ffffffff8110953e>] ? time_hardirqs_on+0x9/0x14
[74073.083809]  [<ffffffff81095c67>] ? trace_hardirqs_on_caller+0x16/0x197
[74073.086314]  [<ffffffff810bde98>] ? timekeeping_get_ns+0x1e/0x32
[74073.100654]  [<ffffffff810be048>] ? ktime_get+0x41/0x52
[74073.102619]  [<ffffffff814c10f0>] io_schedule_timeout+0xa0/0x102
[74073.104771]  [<ffffffff814c10f0>] ? io_schedule_timeout+0xa0/0x102
[74073.106969]  [<ffffffff814c1ca6>] bit_wait_io+0x1b/0x39
[74073.108954]  [<ffffffff814c1fb8>] __wait_on_bit_lock+0x4f/0x99
[74073.110981]  [<ffffffff8112b692>] __lock_page+0x6b/0x6d
[74073.112833]  [<ffffffff8108ceb4>] ? autoremove_wake_function+0x3a/0x3a
[74073.115010]  [<ffffffffa031178b>] lock_page+0x2f/0x32 [btrfs]
[74073.116999]  [<ffffffffa0311d9f>] lock_delalloc_pages+0xc7/0x1a0 [btrfs]
[74073.119243]  [<ffffffffa0313d15>] find_lock_delalloc_range+0xc3/0x1a4 [btrfs]
[74073.121636]  [<ffffffffa0313e81>] writepage_delalloc.isra.31+0x8b/0x134 [btrfs]
[74073.124229]  [<ffffffffa0315d69>] __extent_writepage+0x1c1/0x2bf [btrfs]
[74073.126372]  [<ffffffffa03160f2>] extent_write_cache_pages.isra.30.constprop.49+0x28b/0x36c [btrfs]
[74073.129371]  [<ffffffffa03165b9>] extent_writepages+0x4b/0x5c [btrfs]
[74073.131440]  [<ffffffffa02fcb59>] ? insert_reserved_file_extent.constprop.42+0x261/0x261 [btrfs]
[74073.134303]  [<ffffffff811b4ce4>] ? writeback_sb_inodes+0xe0/0x4a1
[74073.136298]  [<ffffffffa02fab7f>] btrfs_writepages+0x28/0x2a [btrfs]
[74073.138248]  [<ffffffff81138200>] do_writepages+0x23/0x2c
[74073.139910]  [<ffffffff811b3cab>] __writeback_single_inode+0x105/0x6d2
[74073.142003]  [<ffffffff811b4e96>] writeback_sb_inodes+0x292/0x4a1
[74073.136298]  [<ffffffffa02fab7f>] btrfs_writepages+0x28/0x2a [btrfs]
[74073.138248]  [<ffffffff81138200>] do_writepages+0x23/0x2c
[74073.139910]  [<ffffffff811b3cab>] __writeback_single_inode+0x105/0x6d2
[74073.142003]  [<ffffffff811b4e96>] writeback_sb_inodes+0x292/0x4a1
[74073.143911]  [<ffffffff811b511b>] __writeback_inodes_wb+0x76/0xae
[74073.145787]  [<ffffffff811b53ca>] wb_writeback+0x1cc/0x4d7
[74073.147452]  [<ffffffff811b60cd>] wb_workfn+0x194/0x37d
[74073.149084]  [<ffffffff811b60cd>] ? wb_workfn+0x194/0x37d
[74073.150726]  [<ffffffff8106ce77>] ? process_one_work+0x154/0x4e4
[74073.152694]  [<ffffffff8106cf96>] process_one_work+0x273/0x4e4
[74073.154452]  [<ffffffff8106d6db>] worker_thread+0x1eb/0x2ca
[74073.156138]  [<ffffffff8106d4f0>] ? rescuer_thread+0x2b6/0x2b6
[74073.157837]  [<ffffffff81072a81>] kthread+0xd5/0xdd
[74073.159339]  [<ffffffff810729ac>] ? __kthread_unpark+0x5a/0x5a
[74073.161088]  [<ffffffff814c6257>] ret_from_fork+0x27/0x40
[74073.162680] INFO: lockdep is turned off.
[74073.163855] INFO: task do-dedup:30264 blocked for more than 120 seconds.
[74073.181180]       Tainted: G        W       4.9.0-rc7-btrfs-next-36+ #1
[74073.181180] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[74073.185296] fdm-stress      D    0 30264  29974 0x00000000
[74073.186810]  ffff880089595118 ffff880211b8eac0 ffff880237030380 ffff880089594b00
[74073.188998]  ffff88023f2978c0 ffffc900063abb68 ffffffff814c15e1 0000000000000000
[74073.191070]  ffff88023f2978d8 ffff88023f2978c0 00000000003abb50 ffff880089594b00
[74073.193286] Call Trace:
[74073.193990]  [<ffffffff814c15e1>] ? __schedule+0x48f/0x6f4
[74073.195418]  [<ffffffff814c1c8b>] ? bit_wait+0x2f/0x2f
[74073.196796]  [<ffffffff814c18d2>] schedule+0x8c/0xa0
[74073.198163]  [<ffffffff814c4b36>] schedule_timeout+0x43/0xff
[74073.199621]  [<ffffffff81095df5>] ? trace_hardirqs_on+0xd/0xf
[74073.201100]  [<ffffffff810bde98>] ? timekeeping_get_ns+0x1e/0x32
[74073.202686]  [<ffffffff810be048>] ? ktime_get+0x41/0x52
[74073.204051]  [<ffffffff814c10f0>] io_schedule_timeout+0xa0/0x102
[74073.205585]  [<ffffffff814c10f0>] ? io_schedule_timeout+0xa0/0x102
[74073.207123]  [<ffffffff814c1ca6>] bit_wait_io+0x1b/0x39
[74073.208238]  [<ffffffff814c1fb8>] __wait_on_bit_lock+0x4f/0x99
[74073.208871]  [<ffffffff8112b692>] __lock_page+0x6b/0x6d
[74073.209430]  [<ffffffff8108ceb4>] ? autoremove_wake_function+0x3a/0x3a
[74073.210101]  [<ffffffff8112b800>] lock_page+0x2f/0x32
[74073.210636]  [<ffffffff8112c502>] pagecache_get_page+0x5e/0x153
[74073.211270]  [<ffffffffa03257eb>] gather_extent_pages+0x4e/0x109 [btrfs]
[74073.212166]  [<ffffffffa032a04c>] btrfs_dedupe_file_range+0x1e1/0x4dd [btrfs]
[74073.213257]  [<ffffffff8118d9b5>] vfs_dedupe_file_range+0x1c1/0x221
[74073.214086]  [<ffffffff8119e0c4>] do_vfs_ioctl+0x442/0x600
[74073.214767]  [<ffffffff811a7874>] ? rcu_read_unlock+0x5b/0x5d
[74073.215619]  [<ffffffff811a7953>] ? __fget+0x6b/0x77
[74073.216338]  [<ffffffff8119e2d9>] SyS_ioctl+0x57/0x79
[74073.217149]  [<ffffffff814c5fea>] entry_SYSCALL_64_fastpath+0x18/0xad
[74073.218102]  [<ffffffff81109552>] ? time_hardirqs_off+0x9/0x14
[74073.218968]  [<ffffffff810938ce>] ? trace_hardirqs_off_caller+0x1f/0xaa
[74073.219938] INFO: lockdep is turned off.

What happened was the following:

      CPU 1                                       CPU 2

                                             btrfs_dedupe_file_range()
                                               --> using same inode as source
                                                   and target
                                               --> src range is [768K, 1Mb[
                                               --> dst range is [0, 256K[
                                              btrfs_cmp_data_prepare()
                                               --> calls gather_extent_pages()
                                                   for range [768K, 1Mb[ and
                                                   locks all pages in that range

 do_writepages()
  btrfs_writepages()
   extent_writepages()
    extent_write_cache_pages()
     __extent_writepage()
      writepage_delalloc()
       find_lock_delalloc_range()
         --> finds range [0, 1Mb[
         lock_delalloc_pages()
          --> locks all pages in the
              range [0, 768K[
          --> tries to lock page at
              offset 768K
                --> deadlock

                                               --> calls gather_extent_pages()
                                                   to lock pages in the range
                                                   [0, 256K[
                                                    --> deadlock, task at CPU 1
                                                        already locked that
                                                        range and it's trying
                                                        to lock the range we
                                                        locked previously

So fix this by making sure that during a dedup we always lock first the
pages from the range with lower offset.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
 2017-02-22 15:55:02 -08:00
Jeff Mahoney 71367b3fa7 btrfs: use btrfs_debug instead of pr_debug in transaction abort 
Commit e5d6b12fe1 (Btrfs: don't WARN() in btrfs_transaction_abort() for
IO errors) added a pr_debug call to be printed when a transaction is
aborted with -EIO instead of WARN.  btrfs_debug prints which file system
the message is associated with so let's use that instead.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2017-02-17 12:03:56 +01:00