67cd3f2217
Currently CONFIG_BTRFS_EXPERIMENTAL is not only for the extra debugging output, but also for experimental features. This is not ideal to distinguish planned but not yet stable features from those purely designed for debugging. This patch splits the following features into CONFIG_BTRFS_EXPERIMENTAL: - Extent map shrinker This seems to be the first one to exit experimental. - Extent tree v2 This seems to be the last one to graduate from experimental. - Raid stripe tree - Csum offload mode - Send protocol v3 Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
3.4 KiB
SPDX-License-Identifier: GPL-2.0
config BTRFS_FS tristate "Btrfs filesystem support" select BLK_CGROUP_PUNT_BIO select CRYPTO select CRYPTO_CRC32C select LIBCRC32C select CRYPTO_XXHASH select CRYPTO_SHA256 select CRYPTO_BLAKE2B select ZLIB_INFLATE select ZLIB_DEFLATE select LZO_COMPRESS select LZO_DECOMPRESS select ZSTD_COMPRESS select ZSTD_DECOMPRESS select FS_IOMAP select RAID6_PQ select XOR_BLOCKS depends on PAGE_SIZE_LESS_THAN_256KB
help
Btrfs is a general purpose copy-on-write filesystem with extents,
writable snapshotting, support for multiple devices and many more
features focused on fault tolerance, repair and easy administration.
The filesystem disk format is no longer unstable, and it's not
expected to change unless there are strong reasons to do so. If there
is a format change, file systems with a unchanged format will
continue to be mountable and usable by newer kernels.
For more information, please see the web pages at
https://btrfs.readthedocs.io
To compile this file system support as a module, choose M here. The
module will be called btrfs.
If unsure, say N.
config BTRFS_FS_POSIX_ACL bool "Btrfs POSIX Access Control Lists" depends on BTRFS_FS select FS_POSIX_ACL help POSIX Access Control Lists (ACLs) support permissions for users and groups beyond the owner/group/world scheme.
If you don't know what Access Control Lists are, say N
config BTRFS_FS_RUN_SANITY_TESTS bool "Btrfs will run sanity tests upon loading" depends on BTRFS_FS help This will run some basic sanity tests on the free space cache code to make sure it is acting as it should. These are mostly regression tests and are only really interesting to btrfs developers.
If unsure, say N.
config BTRFS_DEBUG bool "Btrfs debugging support" depends on BTRFS_FS help Enable run-time debugging support for the btrfs filesystem. This may enable additional and expensive checks with negative impact on performance, or export extra information via sysfs.
If unsure, say N.
config BTRFS_ASSERT bool "Btrfs assert support" depends on BTRFS_FS help Enable run-time assertion checking. This will result in panics if any of the assertions trip. This is meant for btrfs developers only.
If unsure, say N.
config BTRFS_EXPERIMENTAL bool "Btrfs experimental features" depends on BTRFS_FS default n help Enable experimental features. These features may not be stable enough for end users. This is meant for btrfs developers or users who wish to test the functionality and report problems.
Current list:
- extent map shrinker - performance problems with too frequent shrinks
- send stream protocol v3 - fs-verity support
- checksum offload mode - sysfs knob to affect when checksums are
calculated (at IO time, or in a thread)
- raid-stripe-tree - additional mapping of extents to devices to
support RAID1* profiles on zoned devices,
RAID56 not yet supported
- extent tree v2 - complex rework of extent tracking
If unsure, say N.
config BTRFS_FS_REF_VERIFY bool "Btrfs with the ref verify tool compiled in" depends on BTRFS_FS default n help Enable run-time extent reference verification instrumentation. This is meant to be used by btrfs developers for tracking down extent reference problems or verifying they didn't break something.
If unsure, say N.