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authorPeter Korsgaard <jacmet@sunsite.dk>2010-03-16 23:55:21 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 20:37:30 +0400
commitda5e4ef7fdb8f2fb0878dee3bd9d4dd10cea8cf1 (patch)
tree172df2771cbfbb8501aaf6e04c34b4fc1b3c7cca /drivers/base/Kconfig
parent1653268b1b538981df9bb85d637456530938be6c (diff)
downloadlinux-da5e4ef7fdb8f2fb0878dee3bd9d4dd10cea8cf1.tar.xz
devtmpfs: support !CONFIG_TMPFS
Make devtmpfs available on (embedded) configurations without SHMEM/TMPFS, using ramfs instead. Saves ~15KB. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Acked-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/Kconfig')
-rw-r--r--drivers/base/Kconfig7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index fd52c48ee762..ef38aff737eb 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -18,9 +18,9 @@ config UEVENT_HELPER_PATH
config DEVTMPFS
bool "Maintain a devtmpfs filesystem to mount at /dev"
- depends on HOTPLUG && SHMEM && TMPFS
+ depends on HOTPLUG
help
- This creates a tmpfs filesystem instance early at bootup.
+ This creates a tmpfs/ramfs filesystem instance early at bootup.
In this filesystem, the kernel driver core maintains device
nodes with their default names and permissions for all
registered devices with an assigned major/minor number.
@@ -33,6 +33,9 @@ config DEVTMPFS
functional /dev without any further help. It also allows simple
rescue systems, and reliably handles dynamic major/minor numbers.
+ Notice: if CONFIG_TMPFS isn't enabled, the simpler ramfs
+ file system will be used instead.
+
config DEVTMPFS_MOUNT
bool "Automount devtmpfs at /dev, after the kernel mounted the rootfs"
depends on DEVTMPFS