From: "Robert P. J. Day" Since CONFIG_RAMFS is currently hard-selected to "y", and since Documentation/filesystems/ramfs-rootfs-initramfs.txt reads as follows: "The amount of code required to implement ramfs is tiny, because all the work is done by the existing Linux caching infrastructure. Basically, you're mounting the disk cache as a filesystem. Because of this, ramfs is not an optional component removable via menuconfig, since there would be negligible space savings." It seems pointless to leave this as a Kconfig entry. Signed-off-by: Robert P. J. Day Cc: Al Viro Signed-off-by: Andrew Morton --- fs/Kconfig | 14 -------------- fs/Makefile | 2 +- fs/ramfs/Makefile | 2 +- 3 files changed, 2 insertions(+), 16 deletions(-) diff -puN fs/Kconfig~remove-valueless-definition-of-hard-selected-ramfs-option fs/Kconfig --- a/fs/Kconfig~remove-valueless-definition-of-hard-selected-ramfs-option +++ a/fs/Kconfig @@ -999,20 +999,6 @@ config HUGETLBFS config HUGETLB_PAGE def_bool HUGETLBFS -config RAMFS - bool - default y - ---help--- - Ramfs is a file system which keeps all files in RAM. It allows - read and write access. - - It is more of an programming example than a useable file system. If - you need a file system which lives in RAM with limit checking use - tmpfs. - - To compile this as a module, choose M here: the module will be called - ramfs. - config CONFIGFS_FS tristate "Userspace-driven configuration filesystem (EXPERIMENTAL)" depends on SYSFS && EXPERIMENTAL diff -puN fs/Makefile~remove-valueless-definition-of-hard-selected-ramfs-option fs/Makefile --- a/fs/Makefile~remove-valueless-definition-of-hard-selected-ramfs-option +++ a/fs/Makefile @@ -72,7 +72,7 @@ obj-$(CONFIG_JBD) += jbd/ obj-$(CONFIG_JBD2) += jbd2/ obj-$(CONFIG_EXT2_FS) += ext2/ obj-$(CONFIG_CRAMFS) += cramfs/ -obj-$(CONFIG_RAMFS) += ramfs/ +obj-y += ramfs/ obj-$(CONFIG_HUGETLBFS) += hugetlbfs/ obj-$(CONFIG_CODA_FS) += coda/ obj-$(CONFIG_MINIX_FS) += minix/ diff -puN fs/ramfs/Makefile~remove-valueless-definition-of-hard-selected-ramfs-option fs/ramfs/Makefile --- a/fs/ramfs/Makefile~remove-valueless-definition-of-hard-selected-ramfs-option +++ a/fs/ramfs/Makefile @@ -2,7 +2,7 @@ # Makefile for the linux ramfs routines. # -obj-$(CONFIG_RAMFS) += ramfs.o +obj-y += ramfs.o file-mmu-y := file-nommu.o file-mmu-$(CONFIG_MMU) := file-mmu.o _