![Arnd Bergmann](/assets/img/avatar_default.png)
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>
260 lines
5.4 KiB
Plaintext
260 lines
5.4 KiB
Plaintext
#
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# File system configuration
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#
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menu "File systems"
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if BLOCK
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source "fs/ext2/Kconfig"
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source "fs/ext3/Kconfig"
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source "fs/ext4/Kconfig"
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config FS_XIP
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# execute in place
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bool
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depends on EXT2_FS_XIP
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default y
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source "fs/jbd/Kconfig"
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source "fs/jbd2/Kconfig"
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config FS_MBCACHE
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# Meta block cache for Extended Attributes (ext2/ext3/ext4)
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tristate
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default y if EXT2_FS=y && EXT2_FS_XATTR
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default y if EXT3_FS=y && EXT3_FS_XATTR
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default y if EXT4_FS=y && EXT4_FS_XATTR
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default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS_XATTR
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source "fs/reiserfs/Kconfig"
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source "fs/jfs/Kconfig"
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config FS_POSIX_ACL
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# Posix ACL utility routines (for now, only ext2/ext3/jfs/reiserfs/nfs4)
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#
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# NOTE: you can implement Posix ACLs without these helpers (XFS does).
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# Never use this symbol for ifdefs.
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#
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bool
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default n
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source "fs/xfs/Kconfig"
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source "fs/gfs2/Kconfig"
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source "fs/ocfs2/Kconfig"
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source "fs/btrfs/Kconfig"
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source "fs/nilfs2/Kconfig"
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endif # BLOCK
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config FILE_LOCKING
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bool "Enable POSIX file locking API" if EMBEDDED
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default y
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select BKL # while lockd still uses it.
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help
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This option enables standard file locking support, required
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for filesystems like NFS and for the flock() system
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call. Disabling this option saves about 11k.
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source "fs/notify/Kconfig"
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source "fs/quota/Kconfig"
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source "fs/autofs/Kconfig"
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source "fs/autofs4/Kconfig"
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source "fs/fuse/Kconfig"
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config CUSE
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tristate "Character device in Userspace support"
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depends on FUSE_FS
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help
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This FUSE extension allows character devices to be
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implemented in userspace.
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If you want to develop or use userspace character device
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based on CUSE, answer Y or M.
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config GENERIC_ACL
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bool
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select FS_POSIX_ACL
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menu "Caches"
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source "fs/fscache/Kconfig"
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source "fs/cachefiles/Kconfig"
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endmenu
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if BLOCK
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menu "CD-ROM/DVD Filesystems"
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source "fs/isofs/Kconfig"
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source "fs/udf/Kconfig"
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endmenu
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endif # BLOCK
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if BLOCK
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menu "DOS/FAT/NT Filesystems"
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source "fs/fat/Kconfig"
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source "fs/ntfs/Kconfig"
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endmenu
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endif # BLOCK
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menu "Pseudo filesystems"
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source "fs/proc/Kconfig"
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source "fs/sysfs/Kconfig"
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config TMPFS
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bool "Virtual memory file system support (former shm fs)"
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depends on SHMEM
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help
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Tmpfs is a file system which keeps all files in virtual memory.
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Everything in tmpfs is temporary in the sense that no files will be
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created on your hard drive. The files live in memory and swap
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space. If you unmount a tmpfs instance, everything stored therein is
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lost.
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See <file:Documentation/filesystems/tmpfs.txt> for details.
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config TMPFS_POSIX_ACL
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bool "Tmpfs POSIX Access Control Lists"
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depends on TMPFS
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select GENERIC_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 HUGETLBFS
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bool "HugeTLB file system support"
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depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \
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SYS_SUPPORTS_HUGETLBFS || BROKEN
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help
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hugetlbfs is a filesystem backing for HugeTLB pages, based on
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ramfs. For architectures that support it, say Y here and read
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<file:Documentation/vm/hugetlbpage.txt> for details.
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If unsure, say N.
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config HUGETLB_PAGE
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def_bool HUGETLBFS
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source "fs/configfs/Kconfig"
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endmenu
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menuconfig MISC_FILESYSTEMS
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bool "Miscellaneous filesystems"
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default y
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---help---
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Say Y here to get to see options for various miscellaneous
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filesystems, such as filesystems that came from other
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operating systems.
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This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and
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disabled; if unsure, say Y here.
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if MISC_FILESYSTEMS
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source "fs/adfs/Kconfig"
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source "fs/affs/Kconfig"
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source "fs/ecryptfs/Kconfig"
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source "fs/hfs/Kconfig"
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source "fs/hfsplus/Kconfig"
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source "fs/befs/Kconfig"
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source "fs/bfs/Kconfig"
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source "fs/efs/Kconfig"
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source "fs/jffs2/Kconfig"
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# UBIFS File system configuration
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source "fs/ubifs/Kconfig"
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source "fs/logfs/Kconfig"
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source "fs/cramfs/Kconfig"
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source "fs/squashfs/Kconfig"
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source "fs/freevxfs/Kconfig"
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source "fs/minix/Kconfig"
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source "fs/omfs/Kconfig"
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source "fs/hpfs/Kconfig"
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source "fs/qnx4/Kconfig"
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source "fs/romfs/Kconfig"
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source "fs/sysv/Kconfig"
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source "fs/ufs/Kconfig"
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source "fs/exofs/Kconfig"
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endif # MISC_FILESYSTEMS
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menuconfig NETWORK_FILESYSTEMS
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bool "Network File Systems"
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default y
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depends on NET
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---help---
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Say Y here to get to see options for network filesystems and
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filesystem-related networking code, such as NFS daemon and
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RPCSEC security modules.
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This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and
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disabled; if unsure, say Y here.
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if NETWORK_FILESYSTEMS
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source "fs/nfs/Kconfig"
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source "fs/nfsd/Kconfig"
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config LOCKD
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tristate
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depends on FILE_LOCKING
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config LOCKD_V4
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bool
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depends on NFSD_V3 || NFS_V3
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depends on FILE_LOCKING
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default y
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config EXPORTFS
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tristate
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config NFS_ACL_SUPPORT
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tristate
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select FS_POSIX_ACL
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config NFS_COMMON
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bool
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depends on NFSD || NFS_FS
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default y
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source "net/sunrpc/Kconfig"
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source "fs/smbfs/Kconfig"
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source "fs/ceph/Kconfig"
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source "fs/cifs/Kconfig"
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source "fs/ncpfs/Kconfig"
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source "fs/coda/Kconfig"
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source "fs/afs/Kconfig"
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source "fs/9p/Kconfig"
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endif # NETWORK_FILESYSTEMS
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if BLOCK
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menu "Partition Types"
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source "fs/partitions/Kconfig"
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endmenu
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endif
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source "fs/nls/Kconfig"
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source "fs/dlm/Kconfig"
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endmenu
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