Linux-libre 4.5-gnu

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-config AUFS_FS
-	tristate "Aufs (Advanced multi layered unification filesystem) support"
-	help
-	Aufs is a stackable unification filesystem such as Unionfs,
-	which unifies several directories and provides a merged single
-	directory.
-	In the early days, aufs was entirely re-designed and
-	re-implemented Unionfs Version 1.x series. Introducing many
-	original ideas, approaches and improvements, it becomes totally
-	different from Unionfs while keeping the basic features.
-
-if AUFS_FS
-choice
-	prompt "Maximum number of branches"
-	default AUFS_BRANCH_MAX_127
-	help
-	Specifies the maximum number of branches (or member directories)
-	in a single aufs. The larger value consumes more system
-	resources and has a minor impact to performance.
-config AUFS_BRANCH_MAX_127
-	bool "127"
-	help
-	Specifies the maximum number of branches (or member directories)
-	in a single aufs. The larger value consumes more system
-	resources and has a minor impact to performance.
-config AUFS_BRANCH_MAX_511
-	bool "511"
-	help
-	Specifies the maximum number of branches (or member directories)
-	in a single aufs. The larger value consumes more system
-	resources and has a minor impact to performance.
-config AUFS_BRANCH_MAX_1023
-	bool "1023"
-	help
-	Specifies the maximum number of branches (or member directories)
-	in a single aufs. The larger value consumes more system
-	resources and has a minor impact to performance.
-config AUFS_BRANCH_MAX_32767
-	bool "32767"
-	help
-	Specifies the maximum number of branches (or member directories)
-	in a single aufs. The larger value consumes more system
-	resources and has a minor impact to performance.
-endchoice
-
-config AUFS_SBILIST
-	bool
-	depends on AUFS_MAGIC_SYSRQ || PROC_FS
-	default y
-	help
-	Automatic configuration for internal use.
-	When aufs supports Magic SysRq or /proc, enabled automatically.
-
-config AUFS_HNOTIFY
-	bool "Detect direct branch access (bypassing aufs)"
-	help
-	If you want to modify files on branches directly, eg. bypassing aufs,
-	and want aufs to detect the changes of them fully, then enable this
-	option and use 'udba=notify' mount option.
-	Currently there is only one available configuration, "fsnotify".
-	It will have a negative impact to the performance.
-	See detail in aufs.5.
-
-choice
-	prompt "method" if AUFS_HNOTIFY
-	default AUFS_HFSNOTIFY
-config AUFS_HFSNOTIFY
-	bool "fsnotify"
-	select FSNOTIFY
-endchoice
-
-config AUFS_EXPORT
-	bool "NFS-exportable aufs"
-	depends on EXPORTFS
-	help
-	If you want to export your mounted aufs via NFS, then enable this
-	option. There are several requirements for this configuration.
-	See detail in aufs.5.
-
-config AUFS_INO_T_64
-	bool
-	depends on AUFS_EXPORT
-	depends on 64BIT && !(ALPHA || S390)
-	default y
-	help
-	Automatic configuration for internal use.
-	/* typedef unsigned long/int __kernel_ino_t */
-	/* alpha and s390x are int */
-
-config AUFS_XATTR
-	bool "support for XATTR/EA (including Security Labels)"
-	help
-	If your branch fs supports XATTR/EA and you want to make them
-	available in aufs too, then enable this opsion and specify the
-	branch attributes for EA.
-	See detail in aufs.5.
-
-config AUFS_FHSM
-	bool "File-based Hierarchical Storage Management"
-	help
-	Hierarchical Storage Management (or HSM) is a well-known feature
-	in the storage world. Aufs provides this feature as file-based.
-	with multiple branches.
-	These multiple branches are prioritized, ie. the topmost one
-	should be the fastest drive and be used heavily.
-
-config AUFS_RDU
-	bool "Readdir in userspace"
-	help
-	Aufs has two methods to provide a merged view for a directory,
-	by a user-space library and by kernel-space natively. The latter
-	is always enabled but sometimes large and slow.
-	If you enable this option, install the library in aufs2-util
-	package, and set some environment variables for your readdir(3),
-	then the work will be handled in user-space which generally
-	shows better performance in most cases.
-	See detail in aufs.5.
-
-config AUFS_SHWH
-	bool "Show whiteouts"
-	help
-	If you want to make the whiteouts in aufs visible, then enable
-	this option and specify 'shwh' mount option. Although it may
-	sounds like philosophy or something, but in technically it
-	simply shows the name of whiteout with keeping its behaviour.
-
-config AUFS_BR_RAMFS
-	bool "Ramfs (initramfs/rootfs) as an aufs branch"
-	help
-	If you want to use ramfs as an aufs branch fs, then enable this
-	option. Generally tmpfs is recommended.
-	Aufs prohibited them to be a branch fs by default, because
-	initramfs becomes unusable after switch_root or something
-	generally. If you sets initramfs as an aufs branch and boot your
-	system by switch_root, you will meet a problem easily since the
-	files in initramfs may be inaccessible.
-	Unless you are going to use ramfs as an aufs branch fs without
-	switch_root or something, leave it N.
-
-config AUFS_BR_FUSE
-	bool "Fuse fs as an aufs branch"
-	depends on FUSE_FS
-	select AUFS_POLL
-	help
-	If you want to use fuse-based userspace filesystem as an aufs
-	branch fs, then enable this option.
-	It implements the internal poll(2) operation which is
-	implemented by fuse only (curretnly).
-
-config AUFS_POLL
-	bool
-	help
-	Automatic configuration for internal use.
-
-config AUFS_BR_HFSPLUS
-	bool "Hfsplus as an aufs branch"
-	depends on HFSPLUS_FS
-	default y
-	help
-	If you want to use hfsplus fs as an aufs branch fs, then enable
-	this option. This option introduces a small overhead at
-	copying-up a file on hfsplus.
-
-config AUFS_BDEV_LOOP
-	bool
-	depends on BLK_DEV_LOOP
-	default y
-	help
-	Automatic configuration for internal use.
-	Convert =[ym] into =y.
-
-config AUFS_DEBUG
-	bool "Debug aufs"
-	help
-	Enable this to compile aufs internal debug code.
-	It will have a negative impact to the performance.
-
-config AUFS_MAGIC_SYSRQ
-	bool
-	depends on AUFS_DEBUG && MAGIC_SYSRQ
-	default y
-	help
-	Automatic configuration for internal use.
-	When aufs supports Magic SysRq, enabled automatically.
-endif