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linux/fs/btrfs
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Boris Burkov 36b216c85e btrfs: remove free space items when disabling space cache v1 
When the filesystem transitions from space cache v1 to v2 or to
nospace_cache, it removes the old cached data, but does not remove
the FREE_SPACE items nor the free space inodes they point to. This
doesn't cause any issues besides being a bit inefficient, since these
items no longer do anything useful.

To fix it, when we are mounting, and plan to disable the space cache,
destroy each block group's free space item and free space inode.
The code to remove the items is lifted from the existing use case of
removing the block group, with a light adaptation to handle whether or
not we have already looked up the free space inode.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-12-09 19:16:09 +01:00
..
tests
btrfs: remove recalc_thresholds from free space ops
2020-12-09 19:16:06 +01:00
acl.c
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
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: pass root owner to read_tree_block
2020-12-08 15:54:07 +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: remove free space items when disabling space cache v1
2020-12-09 19:16:09 +01:00
block-group.h
btrfs: load free space cache asynchronously
2020-12-08 15:54:03 +01:00
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: skip unnecessary searches for xattrs when logging an inode
2020-12-08 15:54:12 +01:00
check-integrity.c
btrfs: drop casts of bio bi_sector
2020-12-09 19:16:05 +01:00
check-integrity.h
btrfs: remove btrfsic_submit_bh()
2020-03-23 17:01:39 +01:00
compression.c
btrfs: drop casts of bio bi_sector
2020-12-09 19:16:05 +01:00
compression.h
btrfs: compression: move declarations to header
2020-10-07 12:06:55 +02:00
ctree.c
btrfs: simplify return values in setup_nodes_for_search
2020-12-08 15:54:13 +01:00
ctree.h
btrfs: keep sb cache_generation consistent with space_cache
2020-12-09 19:16:08 +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: make btrfs_delayed_update_inode take btrfs_inode
2020-12-08 15:54:10 +01:00
delayed-inode.h
btrfs: make btrfs_delayed_update_inode take btrfs_inode
2020-12-08 15:54:10 +01:00
delayed-ref.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
delayed-ref.h
btrfs: migrate the delayed refs rsv code
2019-07-04 17:26:17 +02:00
dev-replace.c
btrfs: check and enable ZONED mode
2020-12-09 19:16:03 +01:00
dev-replace.h
btrfs: add __pure attribute to functions
2019-11-18 12:46:52 +01:00
dir-item.c
btrfs: locking: rip out path->leave_spinning
2020-12-08 15:54:02 +01:00
discard.c
btrfs: don't miss async discards after scheduled work override
2020-12-08 15:54:05 +01:00
discard.h
btrfs: cleanup btrfs_discard_update_discardable usage
2020-12-08 15:54:02 +01:00
disk-io.c
btrfs: keep sb cache_generation consistent with space_cache
2020-12-09 19:16:08 +01:00
disk-io.h
btrfs: clear oneshot options on mount and remount
2020-12-09 19:16:08 +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.c
btrfs: drop casts of bio bi_sector
2020-12-09 19:16:05 +01:00
extent_io.h
btrfs: use fixed width int type for extent_state::state
2020-12-08 15:54:13 +01:00
extent_map.c
Btrfs: fix race between using extent maps and merging them
2020-02-12 17:16:46 +01:00
extent_map.h
btrfs: remove extent_map::bdev
2019-11-18 23:43:44 +01:00
extent-io-tree.h
btrfs: use fixed width int type for extent_state::state
2020-12-08 15:54:13 +01:00
extent-tree.c
btrfs: set the lockdep class for extent buffers on creation
2020-12-08 15:54:07 +01:00
file-item.c
btrfs: drop casts of bio bi_sector
2020-12-09 19:16:05 +01:00
file.c
btrfs: disable fallocate in ZONED mode
2020-12-09 19:16:04 +01:00
free-space-cache.c
btrfs: remove free space items when disabling space cache v1
2020-12-09 19:16:09 +01:00
free-space-cache.h
btrfs: remove free space items when disabling space cache v1
2020-12-09 19:16:09 +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
btrfs: rename btrfs_block_group_cache
2019-11-18 17:51:51 +01:00
inode-item.c
btrfs: locking: rip out path->leave_spinning
2020-12-08 15:54:02 +01:00
inode.c
btrfs: remove inode number cache feature
2020-12-09 19:16:05 +01:00
ioctl.c
btrfs: remove inode number cache feature
2020-12-09 19:16:05 +01:00
Kconfig
btrfs: switch to iomap for direct IO
2020-10-07 12:06:57 +02:00
locking.c
btrfs: remove the recurse parameter from __btrfs_tree_read_lock
2020-12-08 15:54:09 +01:00
locking.h
btrfs: remove the recurse parameter from __btrfs_tree_read_lock
2020-12-08 15:54:09 +01:00
lzo.c
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00
Makefile
btrfs: remove inode number cache feature
2020-12-09 19:16:05 +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: pass root owner to read_tree_block
2020-12-08 15:54:07 +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
btrfs: delete unused function btrfs_set_prop_trans
2019-04-29 19:02:54 +02:00
qgroup.c
btrfs: pass root owner to read_tree_block
2020-12-08 15:54:07 +01:00
qgroup.h
btrfs: qgroup: export qgroups in sysfs
2020-07-27 12:55:37 +02:00
raid56.c
btrfs: drop casts of bio bi_sector
2020-12-09 19:16:05 +01:00
raid56.h
btrfs: constify map parameter for nr_parity_stripes and nr_data_stripes
2019-07-01 13:34:58 +02:00
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: pass the owner_root and level to alloc_extent_buffer
2020-12-08 15:54:07 +01:00
ref-verify.c
btrfs: use btrfs_read_node_slot in walk_down_tree
2020-12-08 15:54:06 +01:00
ref-verify.h
btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()
2019-04-29 19:02:49 +02:00
reflink.c
btrfs: make btrfs_cont_expand take btrfs_inode
2020-12-08 15:54:12 +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: remove inode number cache feature
2020-12-09 19:16:05 +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: implement log-structured superblock for ZONED mode
2020-12-09 19:16:04 +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: warn when remount will not change the free space tree
2020-12-09 19:16:08 +01:00
sysfs.c
btrfs: introduce ZONED feature flag
2020-12-08 15:54:16 +01:00
sysfs.h
btrfs: split and refactor btrfs_sysfs_remove_devices_dir
2020-10-07 12:12:21 +02:00
transaction.c
btrfs: keep sb cache_generation consistent with space_cache
2020-12-09 19:16:08 +01:00
transaction.h
btrfs: return bool from btrfs_should_end_transaction
2020-12-08 15:54:16 +01:00
tree-checker.c
btrfs: tree-checker: annotate all error branches as unlikely
2020-12-08 15:54:15 +01:00
tree-checker.h
btrfs: get fs_info from eb in btrfs_check_chunk_valid
2019-04-29 19:02:39 +02:00
tree-defrag.c
btrfs: locking: remove all the blocking helpers
2020-12-08 15:54:01 +01:00
tree-log.c
btrfs: do not block inode logging for so long during transaction commit
2020-12-09 19:16:07 +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: drop casts of bio bi_sector
2020-12-09 19:16:05 +01:00
volumes.h
btrfs: get zone information of zoned block devices
2020-12-09 19:15:57 +01:00
xattr.c
btrfs: skip unnecessary searches for xattrs when logging an inode
2020-12-08 15:54:12 +01:00
xattr.h
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
zlib.c
btrfs: use larger zlib buffer for s390 hardware compression
2020-01-31 10:30:40 -08:00
zoned.c
btrfs: implement log-structured superblock for ZONED mode
2020-12-09 19:16:04 +01:00
zoned.h
btrfs: implement log-structured superblock for ZONED mode
2020-12-09 19:16:04 +01:00
zstd.c
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00