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4785e24fa5
linux/fs/btrfs
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Josef Bacik 4785e24fa5 btrfs: don't take an extra root ref at allocation time 
Now that all the users of roots take references for them we can drop the
extra root ref we've been taking.  Before we had roots at 2 refs for the
life of the file system, one for the radix tree, and one simply for
existing.  Now that we have proper ref accounting in all places that use
roots we can drop this extra ref simply for existing as we no longer
need it.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-03-23 17:01:59 +01:00
..
tests btrfs: don't take an extra root ref at allocation time 2020-03-23 17:01:59 +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: relocation: Use btrfs_find_all_leafs to locate data extent parent tree leaves 2020-03-23 17:01:57 +01:00
backref.h btrfs: relocation: Use btrfs_find_all_leafs to locate data extent parent tree leaves 2020-03-23 17:01:57 +01:00
block-group.c btrfs: add RCU locks around block group initialization 2020-03-23 17:01:53 +01:00
block-group.h btrfs: Move and unexport btrfs_rmap_block 2020-01-23 17:24:34 +01:00
block-rsv.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +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: introduce per-inode file extent tree 2020-03-23 17:01:24 +01:00
check-integrity.c btrfs: remove buffer_heads form super block mirror integrity checking 2020-03-23 17:01:40 +01:00
check-integrity.h btrfs: remove btrfsic_submit_bh() 2020-03-23 17:01:39 +01:00
compression.c btrfs: use larger zlib buffer for s390 hardware compression 2020-01-31 10:30:40 -08:00
compression.h btrfs: compression: remove ops pointer from workspace_manager 2019-11-18 12:46:59 +01:00
ctree.c btrfs: inline checksum name and driver definitions 2020-03-23 17:01:52 +01:00
ctree.h btrfs: make the extent buffer leak check per fs info 2020-03-23 17:01:58 +01:00
delalloc-space.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +01:00
delalloc-space.h
delayed-inode.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +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: sysfs, rename device_link add/remove functions 2020-03-23 17:01:35 +01:00
dev-replace.h btrfs: add __pure attribute to functions 2019-11-18 12:46:52 +01:00
dir-item.c
discard.c btrfs: add correction to handle -1 edge case in async discard 2020-01-20 16:41:01 +01:00
discard.h btrfs: have multiple discard lists 2020-01-20 16:41:00 +01:00
disk-io.c btrfs: don't take an extra root ref at allocation time 2020-03-23 17:01:59 +01:00
disk-io.h btrfs: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
export.c btrfs: export helpers for subvolume name/id resolution 2020-03-23 17:01:42 +01:00
export.h btrfs: export helpers for subvolume name/id resolution 2020-03-23 17:01:42 +01:00
extent_io.c btrfs: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
extent_io.h btrfs: make the extent buffer leak check per fs info 2020-03-23 17:01:58 +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: switch to per-transaction pinned extents 2020-03-23 17:01:38 +01:00
extent-tree.c btrfs: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
file-item.c btrfs: add helper to get the end offset of a file extent item 2020-03-23 17:01:56 +01:00
file.c btrfs: make ranged full fsyncs more efficient 2020-03-23 17:01:56 +01:00
free-space-cache.c btrfs: simplify error handling in __btrfs_write_out_cache() 2020-03-23 17:01:43 +01:00
free-space-cache.h btrfs: have multiple discard lists 2020-01-20 16:41:00 +01:00
free-space-tree.c btrfs: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
free-space-tree.h btrfs: rename btrfs_block_group_cache 2019-11-18 17:51:51 +01:00
inode-item.c btrfs: Make btrfs_find_name_in_ext_backref return struct btrfs_inode_extref 2019-09-09 14:59:16 +02:00
inode-map.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +01:00
inode-map.h
inode.c btrfs: make inodes hold a ref on their roots 2020-03-23 17:01:59 +01:00
ioctl.c Btrfs: move all reflink implementation code into its own file 2020-03-23 17:01:54 +01:00
Kconfig btrfs: add Kconfig dependency for BLAKE2B 2019-12-09 17:56:06 +01:00
locking.c btrfs: Implement DREW lock 2020-03-23 17:01:43 +01:00
locking.h btrfs: Implement DREW lock 2020-03-23 17:01:43 +01:00
lzo.c btrfs: compression: inline free_workspace 2019-11-18 12:46:59 +01:00
Makefile Btrfs: move all reflink implementation code into its own file 2020-03-23 17:01:54 +01:00
misc.h btrfs: add 64bit safe helper for power of two checks 2019-11-18 12:46:50 +01:00
ordered-data.c btrfs: drop argument tree from btrfs_lock_and_flush_ordered_range 2020-03-23 17:01:34 +01:00
ordered-data.h btrfs: drop argument tree from btrfs_lock_and_flush_ordered_range 2020-03-23 17:01:34 +01:00
orphan.c
print-tree.c btrfs: Remove unneeded semicolon 2020-01-20 16:40:55 +01:00
print-tree.h
props.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +01:00
props.h
qgroup.c btrfs: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
qgroup.h btrfs: destroy qgroup extent records on transaction abort 2020-02-19 00:35:54 +01:00
raid56.c btrfs: use struct_size to calculate size of raid hash table 2020-03-23 17:01:44 +01:00
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: rename btrfs_block_group_cache 2019-11-18 17:51:51 +01:00
ref-verify.c btrfs: fix ref-verify to catch operations on 0 ref extents 2020-03-23 17:01:56 +01:00
ref-verify.h
reflink.c Btrfs: implement full reflink support for inline extents 2020-03-23 17:01:54 +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: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
root-tree.c btrfs: Remove __ prefix from btrfs_block_rsv_release 2020-03-23 17:01:55 +01:00
scrub.c btrfs: scrub: Replace zero-length array with flexible-array member 2020-03-23 17:01:54 +01:00
send.c btrfs: add helper to get the end offset of a file extent item 2020-03-23 17:01:56 +01:00
send.h
space-info.c btrfs: account ticket size at add/delete time 2020-03-23 17:01:55 +01:00
space-info.h btrfs: account ticket size at add/delete time 2020-03-23 17:01:55 +01:00
struct-funcs.c btrfs: tie extent buffer and it's token together 2019-09-09 14:59:16 +02:00
super.c btrfs: adjust message level for unrecognized mount option 2020-03-23 17:01:45 +01:00
sysfs.c btrfs: sysfs, unify handler name of devinfo/missing 2020-03-23 17:01:36 +01:00
sysfs.h btrfs: sysfs, rename device_link add/remove functions 2020-03-23 17:01:35 +01:00
transaction.c btrfs: hold a ref on the root on the dead roots list 2020-03-23 17:01:59 +01:00
transaction.h btrfs: switch to per-transaction pinned extents 2020-03-23 17:01:38 +01:00
tree-checker.c btrfs: tree-checker: Verify location key for DIR_ITEM/DIR_INDEX 2020-01-20 16:40:56 +01:00
tree-checker.h
tree-defrag.c
tree-log.c btrfs: move the root freeing stuff into btrfs_put_root 2020-03-23 17:01:59 +01:00
tree-log.h
ulist.c
ulist.h
uuid-tree.c btrfs: bail out of uuid tree scanning if we're closing 2020-03-23 17:01:41 +01:00
volumes.c btrfs: relocation: add error injection points for cancelling balance 2020-03-23 17:01:54 +01:00
volumes.h btrfs: introduce chunk allocation policy 2020-03-23 17:01:48 +01:00
xattr.c
xattr.h
zlib.c btrfs: use larger zlib buffer for s390 hardware compression 2020-01-31 10:30:40 -08:00
zstd.c btrfs: compression: inline free_workspace 2019-11-18 12:46:59 +01:00