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Ted has sent out a RFC about removing this feature. Eric and Jan confirmed that both RedHat and SUSE enable this feature in all their product. David also said that "As far as I know, it's enabled in all Android kernels that use ext4." So it seems OK for us. And what's more, as inline data depends its implementation on xattr, and to be frank, I don't run any test again inline data enabled while xattr disabled. So I think we should add inline data and remove this config option in the same release. [ The savings if you disable CONFIG_EXT4_FS_XATTR is only 27k, which isn't much in the grand scheme of things. Since no one seems to be testing this configuration except for some automated compile farms, on balance we are better removing this config option, and so that it is effectively always enabled. -- tytso ] Cc: David Brown <davidb@codeaurora.org> Cc: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
280 lines
6.2 KiB
Plaintext
280 lines
6.2 KiB
Plaintext
#
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# File system configuration
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#
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menu "File systems"
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# Use unaligned word dcache accesses
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config DCACHE_WORD_ACCESS
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bool
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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
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default m if EXT2_FS_XATTR || EXT3_FS_XATTR || EXT4_FS
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source "fs/reiserfs/Kconfig"
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source "fs/jfs/Kconfig"
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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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# Posix ACL utility routines
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#
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# Note: Posix ACLs can be implemented without these helpers. Never use
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# this symbol for ifdefs in core code.
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#
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config FS_POSIX_ACL
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def_bool n
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config EXPORTFS
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tristate
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config FILE_LOCKING
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bool "Enable POSIX file locking API" if EXPERT
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default y
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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/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 "Tmpfs 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 TMPFS_XATTR
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select GENERIC_ACL
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help
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POSIX Access Control Lists (ACLs) support additional access rights
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for users and groups beyond the standard owner/group/world scheme,
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and this option selects support for ACLs specifically for tmpfs
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filesystems.
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If you've selected TMPFS, it's possible that you'll also need
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this option as there are a number of Linux distros that require
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POSIX ACL support under /dev for certain features to work properly.
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For example, some distros need this feature for ALSA-related /dev
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files for sound to work properly. In short, if you're not sure,
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say Y.
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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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config TMPFS_XATTR
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bool "Tmpfs extended attributes"
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depends on TMPFS
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default n
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help
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Extended attributes are name:value pairs associated with inodes by
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the kernel or by users (see the attr(5) manual page, or visit
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<http://acl.bestbits.at/> for details).
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Currently this enables support for the trusted.* and
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security.* namespaces.
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You need this for POSIX ACL support on tmpfs.
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If unsure, 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/qnx6/Kconfig"
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source "fs/romfs/Kconfig"
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source "fs/pstore/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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source "fs/exofs/Kconfig.ore"
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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 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/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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source "fs/nls/Kconfig"
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source "fs/dlm/Kconfig"
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endmenu
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