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fb0d1eb892
Pull btrfs fixes from Chris Mason: "Almost all of these are bug fixes. Dave Sterba's documentation update is the big exception because he removed our promises to set any machine running Btrfs on fire" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Documentation: filesystems: update btrfs tools section Documentation: filesystems: add new btrfs mount options btrfs: update kconfig help text btrfs: fix bio_size_ok() for max_sectors > 0xffff btrfs: Use trace condition for get_extent tracepoint btrfs: fix typo in the log message Btrfs: fix list delete warning when removing ordered root from the list Btrfs: print bytenr instead of page pointer in check-int Btrfs: remove dead codes from ctree.h Btrfs: don't wait for ordered data outside desired range Btrfs: fix lockdep error in async commit Btrfs: avoid heavy operations in btrfs_commit_super Btrfs: fix __btrfs_start_workers retval Btrfs: disable online raid-repair on ro mounts Btrfs: do not inc uncorrectable_errors counter on ro scrubs Btrfs: only drop modified extents if we logged the whole inode Btrfs: make sure to copy everything if we rename Btrfs: don't BUG_ON() if we get an error walking backrefs
90 lines
2.9 KiB
Plaintext
90 lines
2.9 KiB
Plaintext
config BTRFS_FS
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tristate "Btrfs filesystem support"
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select LIBCRC32C
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select ZLIB_INFLATE
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select ZLIB_DEFLATE
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select LZO_COMPRESS
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select LZO_DECOMPRESS
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select RAID6_PQ
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select XOR_BLOCKS
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help
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Btrfs is a general purpose copy-on-write filesystem with extents,
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writable snapshotting, support for multiple devices and many more
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features focused on fault tolerance, repair and easy administration.
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The filesystem disk format is no longer unstable, and it's not
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expected to change unless there are strong reasons to do so. If there
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is a format change, file systems with a unchanged format will
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continue to be mountable and usable by newer kernels.
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For more information, please see the web pages at
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http://btrfs.wiki.kernel.org.
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To compile this file system support as a module, choose M here. The
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module will be called btrfs.
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If unsure, say N.
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config BTRFS_FS_POSIX_ACL
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bool "Btrfs POSIX Access Control Lists"
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depends on BTRFS_FS
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select FS_POSIX_ACL
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help
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POSIX Access Control Lists (ACLs) support permissions for users and
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groups beyond the owner/group/world scheme.
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To learn more about Access Control Lists, visit the POSIX ACLs for
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Linux website <http://acl.bestbits.at/>.
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If you don't know what Access Control Lists are, say N
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config BTRFS_FS_CHECK_INTEGRITY
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bool "Btrfs with integrity check tool compiled in (DANGEROUS)"
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depends on BTRFS_FS
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help
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Adds code that examines all block write requests (including
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writes of the super block). The goal is to verify that the
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state of the filesystem on disk is always consistent, i.e.,
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after a power-loss or kernel panic event the filesystem is
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in a consistent state.
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If the integrity check tool is included and activated in
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the mount options, plenty of kernel memory is used, and
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plenty of additional CPU cycles are spent. Enabling this
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functionality is not intended for normal use.
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In most cases, unless you are a btrfs developer who needs
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to verify the integrity of (super)-block write requests
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during the run of a regression test, say N
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config BTRFS_FS_RUN_SANITY_TESTS
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bool "Btrfs will run sanity tests upon loading"
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depends on BTRFS_FS
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help
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This will run some basic sanity tests on the free space cache
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code to make sure it is acting as it should. These are mostly
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regression tests and are only really interesting to btrfs
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developers.
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If unsure, say N.
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config BTRFS_DEBUG
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bool "Btrfs debugging support"
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depends on BTRFS_FS
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help
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Enable run-time debugging support for the btrfs filesystem. This may
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enable additional and expensive checks with negative impact on
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performance, or export extra information via sysfs.
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If unsure, say N.
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config BTRFS_ASSERT
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bool "Btrfs assert support"
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depends on BTRFS_FS
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help
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Enable run-time assertion checking. This will result in panics if
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any of the assertions trip. This is meant for btrfs developers only.
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If unsure, say N.
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