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linux/fs/btrfs
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Josef Bacik cd79909bc7 btrfs: load free space cache into a temporary ctl 
The free space cache has been special in that we would load it right
away instead of farming the work off to a worker thread.  This resulted
in some weirdness that had to be taken into account for this fact,
namely that if we every found a block group being cached the fast way we
had to wait for it to finish, because we could get the cache before it
had been validated and we may throw the cache away.

To handle this particular case instead create a temporary
btrfs_free_space_ctl to load the free space cache into.  Then once we've
validated that it makes sense, copy it's contents into the actual
block_group->free_space_ctl.  This allows us to avoid the problems of
needing to wait for the caching to complete, we can clean up the discard
extent handling stuff in __load_free_space_cache, and we no longer need
to do the merge_space_tree() because the space is added one by one into
the real free_space_ctl.  This will allow further reworks of how we
handle loading the free space cache.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-12-08 15:54:03 +01:00
..
tests btrfs: load free space cache into a temporary ctl 2020-12-08 15:54:03 +01:00
acl.c
async-thread.c Btrfs: fix crash during unmount due to race with delayed inode workers 2020-03-23 17:01:51 +01:00
async-thread.h Btrfs: fix crash during unmount due to race with delayed inode workers 2020-03-23 17:01:51 +01:00
backref.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
backref.h btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE 2020-05-25 11:25:35 +02:00
block-group.c btrfs: load free space cache into a temporary ctl 2020-12-08 15:54:03 +01:00
block-group.h btrfs: convert block group refcount to refcount_t 2020-07-27 12:55:42 +02:00
block-rsv.c btrfs: introduce mount option rescue=ignorebadroots 2020-12-08 15:53:41 +01:00
block-rsv.h btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +01:00
btrfs_inode.h btrfs: switch cached fs_info::csum_size from u16 to u32 2020-12-08 15:53:59 +01:00
check-integrity.c btrfs: check integrity: remove local copy of csum_size 2020-12-08 15:54:01 +01:00
check-integrity.h btrfs: remove btrfsic_submit_bh() 2020-03-23 17:01:39 +01:00
compression.c btrfs: remove unnecessary local variables for checksum size 2020-12-08 15:54:00 +01:00
compression.h btrfs: compression: move declarations to header 2020-10-07 12:06:55 +02:00
ctree.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
ctree.h btrfs: update last_byte_to_unpin in switch_commit_roots 2020-12-08 15:54:02 +01:00
delalloc-space.c btrfs: add btrfs_reserve_data_bytes and use it 2020-10-07 12:06:52 +02:00
delalloc-space.h btrfs: make btrfs_delalloc_reserve_space take btrfs_inode 2020-07-27 12:55:36 +02:00
delayed-inode.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
delayed-inode.h btrfs: delayed-inode: Replace zero-length array with flexible-array member 2020-03-23 17:01:53 +01:00
delayed-ref.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +01:00
delayed-ref.h
dev-replace.c btrfs: dev-replace: fail mount if we don't have replace item with target device 2020-11-05 13:03:31 +01:00
dev-replace.h
dir-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
discard.c btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
disk-io.h btrfs: replace fs_info and private_data with inode in btrfs_wq_submit_bio 2020-12-08 15:53:54 +01:00
export.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
export.h btrfs: export helpers for subvolume name/id resolution 2020-03-23 17:01:42 +01:00
extent-io-tree.h btrfs: sink the failed_start parameter to set_extent_bit 2020-12-08 15:53:54 +01:00
extent-tree.c btrfs: explicitly protect ->last_byte_to_unpin in unpin_extent_range 2020-12-08 15:54:02 +01:00
extent_io.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
extent_io.h btrfs: reorder extent buffer members for better packing 2020-12-08 15:54:02 +01:00
extent_map.c
extent_map.h
file-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
file.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
free-space-cache.c btrfs: load free space cache into a temporary ctl 2020-12-08 15:54:03 +01:00
free-space-cache.h btrfs: load free space cache into a temporary ctl 2020-12-08 15:54:03 +01:00
free-space-tree.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
free-space-tree.h
inode-item.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
inode-map.c btrfs: make btrfs_delalloc_reserve_space take btrfs_inode 2020-07-27 12:55:36 +02:00
inode-map.h
inode.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
ioctl.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
Kconfig btrfs: switch to iomap for direct IO 2020-10-07 12:06:57 +02:00
locking.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
locking.h btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
lzo.c
Makefile Btrfs: move all reflink implementation code into its own file 2020-03-23 17:01:54 +01:00
misc.h btrfs: rename tree_entry to rb_simple_node and export it 2020-05-25 11:25:19 +02:00
ordered-data.c btrfs: switch cached fs_info::csum_size from u16 to u32 2020-12-08 15:53:59 +01:00
ordered-data.h btrfs: remove unnecessary local variables for checksum size 2020-12-08 15:54:00 +01:00
orphan.c
print-tree.c btrfs: remove unnecessary casts in printk 2020-12-08 15:53:52 +01:00
print-tree.h btrfs: pretty print leaked root name 2020-10-07 12:12:20 +02:00
props.c btrfs: simplify iget helpers 2020-05-25 11:25:37 +02:00
props.h
qgroup.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
qgroup.h btrfs: qgroup: export qgroups in sysfs 2020-07-27 12:55:37 +02:00
raid56.c btrfs: raid56: remove out label in __raid56_parity_recover 2020-07-27 12:55:44 +02:00
raid56.h
rcu-string.h btrfs: rcu-string: Replace zero-length array with flexible-array member 2020-03-23 17:01:53 +01:00
reada.c btrfs: assert we are holding the reada_lock when releasing a readahead zone 2020-12-08 15:53:38 +01:00
ref-verify.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
ref-verify.h
reflink.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
reflink.h Btrfs: move all reflink implementation code into its own file 2020-03-23 17:01:54 +01:00
relocation.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
root-tree.c btrfs: qgroup: fix qgroup meta rsv leak for subvolume operations 2020-10-07 12:12:13 +02:00
scrub.c btrfs: scrub: remove local copy of csum_size from context 2020-12-08 15:54:01 +01:00
send.c btrfs: send: use helpers to access root_item::ctransid 2020-12-08 15:53:51 +01:00
send.h btrfs: send: avoid copying file data 2020-10-07 12:13:17 +02:00
space-info.c btrfs: kill the RCU protection for fs_info->space_info 2020-10-07 12:13:19 +02:00
space-info.h btrfs: add btrfs_reserve_data_bytes and use it 2020-10-07 12:06:52 +02:00
struct-funcs.c btrfs: use unaligned helpers for stack and header set/get helpers 2020-10-07 12:13:23 +02:00
super.c btrfs: locking: rip out path->leave_spinning 2020-12-08 15:54:02 +01:00
sysfs.c btrfs: sysfs: add per-fs attribute for read policy 2020-12-08 15:53:45 +01:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: update last_byte_to_unpin in switch_commit_roots 2020-12-08 15:54:02 +01:00
transaction.h btrfs: remove dio iomap DSYNC workaround 2020-12-08 15:53:49 +01:00
tree-checker.c btrfs: switch cached fs_info::csum_size from u16 to u32 2020-12-08 15:53:59 +01:00
tree-checker.h
tree-defrag.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
tree-log.c btrfs: locking: remove all the blocking helpers 2020-12-08 15:54:01 +01:00
tree-log.h btrfs: make fast fsyncs wait only for writeback 2020-10-07 12:06:56 +02:00
ulist.c
ulist.h
uuid-tree.c btrfs: remove unnecessary casts in printk 2020-12-08 15:53:52 +01:00
volumes.c btrfs: create read policy framework 2020-12-08 15:53:44 +01:00
volumes.h btrfs: create read policy framework 2020-12-08 15:53:44 +01:00
xattr.c
xattr.h
zlib.c
zstd.c