Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / btrfs / Kconfig

diff --git a/kernel/fs/btrfs/Kconfig b/kernel/fs/btrfs/Kconfig
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+++ b/kernel/fs/btrfs/Kconfig
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+config BTRFS_FS
+       tristate "Btrfs filesystem support"
+       select CRYPTO
+       select CRYPTO_CRC32C
+       select ZLIB_INFLATE
+       select ZLIB_DEFLATE
+       select LZO_COMPRESS
+       select LZO_DECOMPRESS
+       select RAID6_PQ
+       select XOR_BLOCKS
+       select SRCU
+
+       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
+         http://btrfs.wiki.kernel.org.
+
+         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
+         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.