kernel/git/stable/linux.git/fs/btrfs/sysfs.c, branch linux-5.5.y

btrfs: rename btrfs_block_group_cache

2019-11-18T16:51:51+00:00

The type name is misleading, a single entry is named 'cache' while this normally means a collection of objects. Rename that everywhere. Also the identifier was quite long, making function prototypes harder to format. Suggested-by: Nikolay Borisov Reviewed-by: Qu Wenruo Signed-off-by: David Sterba

btrfs: add incompat for raid1 with 3, 4 copies

2019-11-18T16:51:49+00:00

The new raid1c3 and raid1c4 profiles are backward incompatible and the name shall be 'raid1c34', the status can be found in the global supported features in /sys/fs/btrfs/features or in the per-filesystem directory. Signed-off-by: David Sterba

btrfs: add dedicated members for start and length of a block group

2019-11-18T16:51:45+00:00

The on-disk format of block group item makes use of the key that stores the offset and length. This is further used in the code, although this makes thing harder to understand. The key is also packed so the offset/length is not properly aligned as u64. Add start (key.objectid) and length (key.offset) members to block group and remove the embedded key. When the item is searched or written, a local variable for key is used. Reviewed-by: Johannes Thumshirn Reviewed-by: Nikolay Borisov Reviewed-by: Qu Wenruo Signed-off-by: David Sterba

btrfs: move block_group_item::used to block group

2019-11-18T16:51:44+00:00

For unknown reasons, the member 'used' in the block group struct is stored in the b-tree item and accessed everywhere using the special accessor helper. Let's unify it and make it a regular member and only update the item before writing it to the tree. The item is still being used for flags and chunk_objectid, there's some duplication until the item is removed in following patches. Reviewed-by: Johannes Thumshirn Reviewed-by: Nikolay Borisov Reviewed-by: Qu Wenruo Signed-off-by: David Sterba

btrfs: sysfs: show used checksum driver per filesystem

2019-11-18T16:51:43+00:00

Show the used driver for the checksum algorithm for the filesystem in sysfs file /sys/fs/btrfs/UUID/features/checksum, eg. crc32c (crc32c-generic) Signed-off-by: Johannes Thumshirn Reviewed-by: David Sterba Signed-off-by: David Sterba

btrfs: sysfs: export supported checksums

2019-11-18T16:51:43+00:00

Export supported checksum algorithms via sysfs in the list of static features: /sys/fs/btrfs/features/supported_checksums Space spearated list of checksum algorithm names. Co-developed-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: sysfs: move helper macros to sysfs.c

2019-09-09T12:59:08+00:00

None of the macros is used outside of sysfs.c. Signed-off-by: David Sterba

btrfs: sysfs: move type conversion helpers to sysfs.c

2019-09-09T12:59:08+00:00

Signed-off-by: David Sterba

btrfs: cleanup kobject.h includes

2019-09-09T12:59:07+00:00

The kobject should be pulled in via sysfs.h and that needs to include it because it needs various definitions like kobj_attribute or kobject. Signed-off-by: David Sterba

btrfs: factor out sysfs code for updating sprout fsid

2019-09-09T12:59:07+00:00

Wrap the fsid renaming code and move it to sysfs.c. Signed-off-by: David Sterba