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e91381421f87403f9fd4d3d3b0143fa14d5aa85f
linux/fs/btrfs
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Qu Wenruo e91381421f btrfs: extent-tree: Add comment for inc_block_group_ro() 
inc_block_group_ro() is only designed to mark one block group read-only,
it doesn't really care if other block groups have enough free space to
contain the used space in the block group.

However due to the close connection between this function and
relocation, sometimes we can be confused and think this function is
responsible for balance space reservation, which is not true.

Add some comment to make the functionality clear.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2019-09-09 14:59:00 +02:00
..
tests
btrfs: Remove leftover of in-band dedupe
2019-09-09 14:58:59 +02:00
acl.c
btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter
2019-04-29 19:02:44 +02:00
async-thread.c
btrfs: simplify workqueue name when allocating
2019-02-25 14:13:24 +01:00
async-thread.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
backref.c
Btrfs: fix deadlock between fiemap and transaction commits
2019-07-30 18:25:12 +02:00
backref.h
btrfs: fiemap: preallocate ulists for btrfs_check_shared
2019-07-01 13:34:53 +02:00
block-rsv.c
btrfs: migrate the global_block_rsv helpers to block-rsv.c
2019-07-02 12:30:55 +02:00
block-rsv.h
btrfs: migrate the global_block_rsv helpers to block-rsv.c
2019-07-02 12:30:55 +02:00
btrfs_inode.h
btrfs: remove assumption about csum type form btrfs_print_data_csum_error()
2019-07-01 13:35:02 +02:00
check-integrity.c
btrfs: reduce stack usage for btrfsic_process_written_block
2019-09-09 14:58:58 +02:00
check-integrity.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
compression.c
btrfs: lift bio_set_dev from bio allocation helpers
2019-07-02 12:30:51 +02:00
compression.h
btrfs: correctly validate compression type
2019-07-02 12:30:48 +02:00
ctree.c
btrfs: assert tree mod log lock in __tree_mod_log_insert
2019-09-09 14:59:00 +02:00
ctree.h
btrfs: Remove leftover of in-band dedupe
2019-09-09 14:58:59 +02:00
delalloc-space.c
btrfs: migrate the delalloc space stuff to it's own home
2019-07-04 17:26:17 +02:00
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: get fs_info from eb in btrfs_leaf_free_space
2019-04-29 19:02:30 +02:00
delayed-inode.h
Btrfs: delayed-inode: use rb_first_cached for ins_root and del_root
2018-10-15 17:23:33 +02:00
delayed-ref.c
btrfs: migrate the delayed refs rsv code
2019-07-04 17:26:17 +02:00
delayed-ref.h
btrfs: migrate the delayed refs rsv code
2019-07-04 17:26:17 +02:00
dev-replace.c
btrfs: remove mapping tree structures indirection
2019-07-01 13:34:56 +02:00
dev-replace.h
btrfs: get fs_info from trans in btrfs_run_dev_replace
2019-04-29 19:02:43 +02:00
dir-item.c
btrfs: remove unused parameter fs_info from btrfs_extend_item
2019-04-29 19:02:50 +02:00
disk-io.c
Btrfs: fix sysfs warning and missing raid sysfs directories
2019-08-07 16:25:44 +02:00
disk-io.h
btrfs: directly call into crypto framework for checksumming
2019-07-01 13:35:02 +02:00
export.c
btrfs: Remove 'objectid' member from struct btrfs_root
2018-10-15 17:23:25 +02:00
export.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
extent_io.c
btrfs: Remove delalloc_end argument from extent_clear_unlock_delalloc
2019-09-09 14:58:59 +02:00
extent_io.h
btrfs: Remove delalloc_end argument from extent_clear_unlock_delalloc
2019-09-09 14:58:59 +02:00
extent_map.c
btrfs: assert extent map tree lock in add_extent_mapping
2019-09-09 14:59:00 +02:00
extent_map.h
btrfs: Remove impossible condition from mergable_maps
2019-02-25 14:13:21 +01:00
extent-tree.c
btrfs: extent-tree: Add comment for inc_block_group_ro()
2019-09-09 14:59:00 +02:00
file-item.c
btrfs: directly call into crypto framework for checksumming
2019-07-01 13:35:02 +02:00
file.c
btrfs: Remove leftover of in-band dedupe
2019-09-09 14:58:59 +02:00
free-space-cache.c
btrfs: migrate the delalloc space stuff to it's own home
2019-07-04 17:26:17 +02:00
free-space-cache.h
btrfs: get fs_info from block group in btrfs_find_space_cluster
2019-04-29 19:02:46 +02:00
free-space-tree.c
btrfs: get fs_info from block group in search_free_space_info
2019-04-29 19:02:46 +02:00
free-space-tree.h
btrfs: get fs_info from block group in search_free_space_info
2019-04-29 19:02:46 +02:00
inode-item.c
btrfs: remove unused parameter fs_info from btrfs_extend_item
2019-04-29 19:02:50 +02:00
inode-map.c
btrfs: migrate the delalloc space stuff to it's own home
2019-07-04 17:26:17 +02:00
inode-map.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
inode.c
btrfs: Add an assertion to warn incorrect case in insert_inline_extent()
2019-09-09 14:59:00 +02:00
ioctl.c
btrfs: use common vfs LABEL ioctl definitions
2019-09-09 14:58:59 +02:00
Kconfig
btrfs: Fix build error while LIBCRC32C is module
2019-07-17 17:03:30 +02:00
locking.c
btrfs: Remove unused locking functions
2019-09-09 14:58:59 +02:00
locking.h
btrfs: Remove unused locking functions
2019-09-09 14:58:59 +02:00
lzo.c
btrfs: change set_level() to bound the level passed in
2019-02-25 14:13:32 +01:00
Makefile
btrfs: migrate the delalloc space stuff to it's own home
2019-07-04 17:26:17 +02:00
math.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
ordered-data.c
btrfs: fix extent_state leak in btrfs_lock_and_flush_ordered_range
2019-07-26 12:21:22 +02:00
ordered-data.h
btrfs: don't assume ordered sums to be 4 bytes
2019-07-01 13:35:00 +02:00
orphan.c
btrfs: replace GPL boilerplate by SPDX -- sources
2018-04-12 16:29:51 +02:00
print-tree.c
btrfs: switch extent_buffer write_locks from atomic to int
2019-07-02 12:30:47 +02:00
print-tree.h
btrfs: print-tree: debugging output enhancement
2018-04-20 19:18:16 +02:00
props.c
btrfs: shut up bogus -Wmaybe-uninitialized warning
2019-07-02 12:30:49 +02:00
props.h
btrfs: delete unused function btrfs_set_prop_trans
2019-04-29 19:02:54 +02:00
qgroup.c
btrfs: qgroup: Don't hold qgroup_ioctl_lock in btrfs_qgroup_inherit()
2019-07-02 12:30:48 +02:00
qgroup.h
btrfs: qgroup: Move reserved data accounting from btrfs_delayed_ref_head to btrfs_qgroup_extent_record
2019-02-25 14:13:39 +01:00
raid56.c
block: remove the i argument to bio_for_each_segment_all
2019-04-30 09:26:13 -06:00
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: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
reada.c
btrfs: start readahead also in seed devices
2019-06-14 17:33:46 +02:00
ref-verify.c
Merge tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
2019-05-07 12:48:10 -07:00
ref-verify.h
btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod()
2019-04-29 19:02:49 +02:00
relocation.c
btrfs: Remove leftover of in-band dedupe
2019-09-09 14:58:59 +02:00
root-tree.c
btrfs: move the subvolume reservation stuff out of extent-tree.c
2019-07-04 17:26:18 +02:00
scrub.c
btrfs: add mask for all RAID1 types
2019-07-02 12:30:48 +02:00
send.c
Btrfs: fix incremental send failure after deduplication
2019-07-30 18:25:11 +02:00
send.h
btrfs: replace GPL boilerplate by SPDX -- headers
2018-04-12 16:29:46 +02:00
space-info.c
btrfs: Simplify update of space_info in __reserve_metadata_bytes()
2019-07-02 12:30:53 +02:00
space-info.h
btrfs: unexport can_overcommit
2019-07-02 12:30:53 +02:00
struct-funcs.c
btrfs: prune unused includes
2018-08-06 13:12:43 +02:00
super.c
btrfs: move space_info to space-info.h
2019-07-02 12:30:51 +02:00
sysfs.c
Merge tag 'for-5.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2019-07-16 15:12:56 -07:00
sysfs.h
btrfs: drop extra enum initialization where using defaults
2018-12-17 14:51:43 +01:00
transaction.c
Btrfs: fix deadlock between fiemap and transaction commits
2019-07-30 18:25:12 +02:00
transaction.h
Btrfs: fix deadlock between fiemap and transaction commits
2019-07-30 18:25:12 +02:00
tree-checker.c
btrfs: tree-checker: Check if the file extent end overflows
2019-07-01 13:34:55 +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: open code now trivial btrfs_set_lock_blocking
2019-02-25 14:13:27 +01:00
tree-log.c
Btrfs: fix fsync not persisting dentry deletions due to inode evictions
2019-07-02 12:30:50 +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: remove unused parameter fs_info from btrfs_extend_item
2019-04-29 19:02:50 +02:00
volumes.c
btrfs: volumes: Add comment for find_free_dev_extent_start()
2019-09-09 14:59:00 +02:00
volumes.h
btrfs: volumes: Unexport find_free_dev_extent_start()
2019-09-09 14:59:00 +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: change set_level() to bound the level passed in
2019-02-25 14:13:32 +01:00
zstd.c
btrfs: correct zstd workspace manager lock to use spin_lock_bh()
2019-05-28 18:54:09 +02:00