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linux-next/fs/ufs/Kconfig
Arnd Bergmann 6de5bd128d BKL: introduce CONFIG_BKL.
With all the patches we have queued in the BKL removal tree, only a
few dozen modules are left that actually rely on the BKL, and even
there are lots of low-hanging fruit. We need to decide what to do
about them, this patch illustrates one of the options:

Every user of the BKL is marked as 'depends on BKL' in Kconfig,
and the CONFIG_BKL becomes a user-visible option. If it gets
disabled, no BKL using module can be built any more and the BKL
code itself is compiled out.

The one exception is file locking, which is practically always
enabled and does a 'select BKL' instead. This effectively forces
CONFIG_BKL to be enabled until we have solved the fs/lockd
mess and can apply the patch that removes the BKL from fs/locks.c.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2010-10-21 15:44:13 +02:00

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config UFS_FS
tristate "UFS file system support (read only)"
depends on BLOCK
depends on BKL # probably fixable
help
BSD and derivate versions of Unix (such as SunOS, FreeBSD, NetBSD,
OpenBSD and NeXTstep) use a file system called UFS. Some System V
Unixes can create and mount hard disk partitions and diskettes using
this file system as well. Saying Y here will allow you to read from
these partitions; if you also want to write to them, say Y to the
experimental "UFS file system write support", below. Please read the
file <file:Documentation/filesystems/ufs.txt> for more information.
The recently released UFS2 variant (used in FreeBSD 5.x) is
READ-ONLY supported.
Note that this option is generally not needed for floppies, since a
good portable way to transport files and directories between unixes
(and even other operating systems) is given by the tar program ("man
tar" or preferably "info tar").
When accessing NeXTstep files, you may need to convert them from the
NeXT character set to the Latin1 character set; use the program
recode ("info recode") for this purpose.
To compile the UFS file system support as a module, choose M here: the
module will be called ufs.
If you haven't heard about all of this before, it's safe to say N.
config UFS_FS_WRITE
bool "UFS file system write support (DANGEROUS)"
depends on UFS_FS && EXPERIMENTAL
help
Say Y here if you want to try writing to UFS partitions. This is
experimental, so you should back up your UFS partitions beforehand.
config UFS_DEBUG
bool "UFS debugging"
depends on UFS_FS
help
If you are experiencing any problems with the UFS filesystem, say
Y here. This will result in _many_ additional debugging messages to be
written to the system log.