6d49ba1b47
Clean up the leak debugging in extent_io.c by moving the debug code into functions. This also removes the list_heads used for debugging from the extent_buffer and extent_state structures when debug is not enabled. Since we need a global debug config to do that last part, implement CONFIG_BTRFS_DEBUG to accommodate. Thanks to Dave Sterba for the Kconfig bit. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
74 lines
2.4 KiB
Text
74 lines
2.4 KiB
Text
config BTRFS_FS
|
|
tristate "Btrfs filesystem support"
|
|
select LIBCRC32C
|
|
select ZLIB_INFLATE
|
|
select ZLIB_DEFLATE
|
|
select LZO_COMPRESS
|
|
select LZO_DECOMPRESS
|
|
select RAID6_PQ
|
|
select XOR_BLOCKS
|
|
|
|
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
|
|
|
|
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 devlopers.
|
|
|
|
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.
|