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linux/fs/btrfs
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Nikolay Borisov 96f9b0f2fa btrfs: simplify checks when adding excluded ranges 
Adresses held in 'logical' array are always guaranteed to fall within
the boundaries of the block group. That is, 'start' can never be
smaller than cache->start. This invariant follows from the way the
address are calculated in btrfs_rmap_block:

    stripe_nr = physical - map->stripes[i].physical;
    stripe_nr = div64_u64(stripe_nr, map->stripe_len);
    bytenr = chunk_start + stripe_nr * io_stripe_size;

I.e it's always some IO stripe within the given chunk.

Exploit this invariant to simplify the body of the loop by removing the
unnecessary 'if' since its 'else' part is the one always executed.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-07-27 12:55:20 +02:00
..
tests
btrfs: kill the subvol_srcu
2020-03-23 17:02:00 +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: fix double free on ulist after backref resolution failure
2020-07-21 21:59:15 +02:00
backref.h
btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE
2020-05-25 11:25:35 +02:00
block-group.c
btrfs: simplify checks when adding excluded ranges
2020-07-27 12:55:20 +02:00
block-group.h
btrfs: move the block group freeze/unfreeze helpers into block-group.c
2020-05-25 11:25:30 +02:00
block-rsv.c
btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE
2020-05-25 11:25:35 +02:00
block-rsv.h
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
btrfs_inode.h
Revert "btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK"
2020-06-09 19:21:48 +02:00
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: unexport btrfs_compress_set_level()
2020-05-25 11:25:37 +02:00
compression.h
btrfs: unexport btrfs_compress_set_level()
2020-05-25 11:25:37 +02:00
ctree.c
btrfs: convert comments to fallthrough annotations
2020-07-02 10:18:30 +02:00
ctree.h
btrfs: check if a log root exists before locking the log_mutex on unlink
2020-06-16 19:22:23 +02:00
delalloc-space.c
btrfs: Remove __ prefix from btrfs_block_rsv_release
2020-03-23 17:01:55 +01:00
delalloc-space.h
btrfs: migrate the delalloc space stuff to it's own home
2019-07-04 17:26:17 +02:00
delayed-inode.c
btrfs: use nofs allocations for running delayed items
2020-03-25 16:26:00 +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
btrfs: migrate the delayed refs rsv code
2019-07-04 17:26:17 +02:00
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
btrfs: remove unused parameter fs_info from btrfs_extend_item
2019-04-29 19:02:50 +02:00
discard.c
btrfs: discard: add missing put when grabbing block group from unused list
2020-07-07 16:06:28 +02:00
discard.h
btrfs: discard: Use the correct style for SPDX License Identifier
2020-04-20 17:43:42 +02:00
disk-io.c
for-5.8-rc4-tag
2020-07-07 14:10:33 -07:00
disk-io.h
btrfs: simplify root lookup by id
2020-05-25 11:25:36 +02:00
export.c
btrfs: simplify iget helpers
2020-05-25 11:25:37 +02:00
export.h
btrfs: export helpers for subvolume name/id resolution
2020-03-23 17:01:42 +01:00
extent_io.c
for-5.8-rc6-tag
2020-07-24 14:11:43 -07:00
extent_io.h
A lot of bug fixes and cleanups for ext4, including:
2020-06-05 16:19:28 -07:00
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: fix corrupt log due to concurrent fsync of inodes with shared extents
2020-05-25 11:25:37 +02:00
extent-tree.c
btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE
2020-05-25 11:25:35 +02:00
file-item.c
btrfs: remove useless 'fail_unlock' label from btrfs_csum_file_blocks()
2020-05-25 11:25:37 +02:00
file.c
btrfs: don't balance btree inode pages from buffered write path
2020-07-27 12:55:20 +02:00
free-space-cache.c
btrfs: turn space cache writeout failure messages into debug messages
2020-05-25 11:25:38 +02:00
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
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
inode.c
for-5.8-rc6-tag
2020-07-24 14:11:43 -07:00
ioctl.c
btrfs: use kfree() in btrfs_ioctl_get_subvol_info()
2020-06-16 19:24:03 +02:00
Kconfig
Revert "btrfs: switch to iomap_dio_rw() for dio"
2020-06-14 01:19:02 +02:00
locking.c
btrfs: add missing annotation for btrfs_tree_lock()
2020-05-25 11:25:16 +02:00
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: rename tree_entry to rb_simple_node and export it
2020-05-25 11:25:19 +02:00
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
btrfs: replace GPL boilerplate by SPDX -- sources
2018-04-12 16:29:51 +02:00
print-tree.c
btrfs: Remove unneeded semicolon
2020-01-20 16:40:55 +01:00
print-tree.h
btrfs: print-tree: debugging output enhancement
2018-04-20 19:18:16 +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: qgroup: mark qgroup inconsistent if we're inherting snapshot to a new qgroup
2020-05-25 11:25:29 +02:00
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
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: rename btrfs_block_group_cache
2019-11-18 17:51:51 +01:00
ref-verify.c
btrfs: convert comments to fallthrough annotations
2020-07-02 10:18:30 +02:00
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: fix lost i_size update after cloning inline extent
2020-04-08 19:10:34 +02:00
reflink.h
Btrfs: move all reflink implementation code into its own file
2020-03-23 17:01:54 +01:00
relocation.c
btrfs: simplify iget helpers
2020-05-25 11:25:37 +02:00
root-tree.c
btrfs: simplify root lookup by id
2020-05-25 11:25:36 +02:00
scrub.c
btrfs: simplify root lookup by id
2020-05-25 11:25:36 +02:00
send.c
for-5.8-tag
2020-06-02 19:59:25 -07:00
send.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
space-info.c
btrfs: fix reclaim_size counter leak after stealing from global reserve
2020-07-02 10:18:34 +02:00
space-info.h
btrfs: improve global reserve stealing logic
2020-05-25 11:25:22 +02:00
struct-funcs.c
btrfs: update documentation of set/get helpers
2020-05-25 11:25:35 +02:00
super.c
btrfs: convert comments to fallthrough annotations
2020-07-02 10:18:30 +02:00
sysfs.c
btrfs: sysfs: Use scnprintf() instead of snprintf()
2020-03-23 18:14:47 +01:00
sysfs.h
btrfs: sysfs, rename device_link add/remove functions
2020-03-23 17:01:35 +01:00
transaction.c
btrfs: simplify root lookup by id
2020-05-25 11:25:36 +02:00
transaction.h
btrfs: improve global reserve stealing logic
2020-05-25 11:25:22 +02:00
tree-checker.c
btrfs: tree-checker: remove duplicate definition of 'inode_item_err'
2020-05-25 11:25:23 +02:00
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: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE
2020-05-25 11:25:35 +02:00
tree-log.c
btrfs: check if a log root exists before locking the log_mutex on unlink
2020-06-16 19:22:23 +02:00
tree-log.h
btrfs: get fs_info from trans in btrfs_set_log_full_commit
2019-04-29 19:02:41 +02:00
ulist.c
btrfs: replace GPL boilerplate by SPDX -- sources
2018-04-12 16:29:51 +02:00
ulist.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
uuid-tree.c
btrfs: simplify root lookup by id
2020-05-25 11:25:36 +02:00
volumes.c
btrfs: fix mount failure caused by race with umount
2020-07-21 22:08:54 +02:00
volumes.h
btrfs: convert comments to fallthrough annotations
2020-07-02 10:18:30 +02:00
xattr.c
Btrfs: fix failure to persist compression property xattr deletion on fsync
2019-06-17 16:37:17 +02:00
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
zstd.c
btrfs: compression: inline free_workspace
2019-11-18 12:46:59 +01:00