mirror of https://gitee.com/openkylin/linux.git
53 lines
1.8 KiB
Plaintext
53 lines
1.8 KiB
Plaintext
config BTRFS_FS
|
|
tristate "Btrfs filesystem (EXPERIMENTAL) Unstable disk format"
|
|
depends on EXPERIMENTAL
|
|
select LIBCRC32C
|
|
select ZLIB_INFLATE
|
|
select ZLIB_DEFLATE
|
|
select LZO_COMPRESS
|
|
select LZO_DECOMPRESS
|
|
help
|
|
Btrfs is a new filesystem with extents, writable snapshotting,
|
|
support for multiple devices and many more features.
|
|
|
|
Btrfs is highly experimental, and THE DISK FORMAT IS NOT YET
|
|
FINALIZED. You should say N here unless you are interested in
|
|
testing Btrfs with non-critical data.
|
|
|
|
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.
|
|
|
|
To learn more about Access Control Lists, visit the POSIX ACLs for
|
|
Linux website <http://acl.bestbits.at/>.
|
|
|
|
If you don't know what Access Control Lists are, say N
|
|
|
|
config BTRFS_FS_CHECK_INTEGRITY
|
|
bool "Btrfs with integrity check tool compiled in (DANGEROUS)"
|
|
depends on BTRFS_FS
|
|
help
|
|
Adds code that examines all block write requests (including
|
|
writes of the super block). The goal is to verify that the
|
|
state of the filesystem on disk is always consistent, i.e.,
|
|
after a power-loss or kernel panic event the filesystem is
|
|
in a consistent state.
|
|
|
|
If the integrity check tool is included and activated in
|
|
the mount options, plenty of kernel memory is used, and
|
|
plenty of additional CPU cycles are spent. Enabling this
|
|
functionality is not intended for normal use.
|
|
|
|
In most cases, unless you are a btrfs developer who needs
|
|
to verify the integrity of (super)-block write requests
|
|
during the run of a regression test, say N
|