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author | Arnd Bergmann <arnd@arndb.de> | 2010-09-11 16:00:57 (GMT) |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-21 13:44:13 (GMT) |
commit | 6de5bd128d381ad88ac6d419a5e597048eb468cf (patch) | |
tree | 7b3a0440f645c6e98367a87b1ca0ed1e0df204dd /fs | |
parent | 7ff52efdca367d4bfe2449bd3d4a1f8172c5953a (diff) | |
download | linux-6de5bd128d381ad88ac6d419a5e597048eb468cf.tar.xz |
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>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/Kconfig | 1 | ||||
-rw-r--r-- | fs/adfs/Kconfig | 1 | ||||
-rw-r--r-- | fs/autofs/Kconfig | 1 | ||||
-rw-r--r-- | fs/hpfs/Kconfig | 1 | ||||
-rw-r--r-- | fs/nfs/Kconfig | 1 | ||||
-rw-r--r-- | fs/nfsd/Kconfig | 1 | ||||
-rw-r--r-- | fs/smbfs/Kconfig | 1 | ||||
-rw-r--r-- | fs/udf/Kconfig | 1 | ||||
-rw-r--r-- | fs/ufs/Kconfig | 1 |
9 files changed, 9 insertions, 0 deletions
@@ -50,6 +50,7 @@ endif # BLOCK config FILE_LOCKING bool "Enable POSIX file locking API" if EMBEDDED default y + select BKL # while lockd still uses it. help This option enables standard file locking support, required for filesystems like NFS and for the flock() system diff --git a/fs/adfs/Kconfig b/fs/adfs/Kconfig index e55182a..1dd5f34 100644 --- a/fs/adfs/Kconfig +++ b/fs/adfs/Kconfig @@ -1,6 +1,7 @@ config ADFS_FS tristate "ADFS file system support (EXPERIMENTAL)" depends on BLOCK && EXPERIMENTAL + depends on BKL # need to fix help The Acorn Disc Filing System is the standard file system of the RiscOS operating system which runs on Acorn's ARM-based Risc PC diff --git a/fs/autofs/Kconfig b/fs/autofs/Kconfig index 5f3bea9..480e210 100644 --- a/fs/autofs/Kconfig +++ b/fs/autofs/Kconfig @@ -1,5 +1,6 @@ config AUTOFS_FS tristate "Kernel automounter support" + depends on BKL # unfixable, just use autofs4 help The automounter is a tool to automatically mount remote file systems on demand. This implementation is partially kernel-based to reduce diff --git a/fs/hpfs/Kconfig b/fs/hpfs/Kconfig index 56bd15c..63b6f56 100644 --- a/fs/hpfs/Kconfig +++ b/fs/hpfs/Kconfig @@ -1,6 +1,7 @@ config HPFS_FS tristate "OS/2 HPFS file system support" depends on BLOCK + depends on BKL # nontrivial to fix help OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS is the file system used for organizing files on OS/2 hard disk diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig index 6c2aad4..10b9524 100644 --- a/fs/nfs/Kconfig +++ b/fs/nfs/Kconfig @@ -1,6 +1,7 @@ config NFS_FS tristate "NFS client support" depends on INET && FILE_LOCKING + depends on BKL # fix as soon as lockd is done select LOCKD select SUNRPC select NFS_ACL_SUPPORT if NFS_V3_ACL diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig index 95932f5..429d4a1 100644 --- a/fs/nfsd/Kconfig +++ b/fs/nfsd/Kconfig @@ -2,6 +2,7 @@ config NFSD tristate "NFS server support" depends on INET depends on FILE_LOCKING + depends on BKL # fix as soon as lockd is done select LOCKD select SUNRPC select EXPORTFS diff --git a/fs/smbfs/Kconfig b/fs/smbfs/Kconfig index e668127..2bc24a8 100644 --- a/fs/smbfs/Kconfig +++ b/fs/smbfs/Kconfig @@ -1,5 +1,6 @@ config SMB_FS tristate "SMB file system support (OBSOLETE, please use CIFS)" + depends on BKL # probably unfixable depends on INET select NLS help diff --git a/fs/udf/Kconfig b/fs/udf/Kconfig index 0e0e99b..f8def3c 100644 --- a/fs/udf/Kconfig +++ b/fs/udf/Kconfig @@ -1,5 +1,6 @@ config UDF_FS tristate "UDF file system support" + depends on BKL # needs serious work to remove select CRC_ITU_T help This is the new file system used on some CD-ROMs and DVDs. Say Y if diff --git a/fs/ufs/Kconfig b/fs/ufs/Kconfig index e4f10a4..30c8f22 100644 --- a/fs/ufs/Kconfig +++ b/fs/ufs/Kconfig @@ -1,6 +1,7 @@ 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 |