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authorZdenek Pavlas <pavlas@nextra.cz>2006-03-25 03:07:49 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-25 08:22:57 -0800
commit340e48e662dc9bf79cdd9dc755cb2eb2bad580cd (patch)
treedcd67a41171101d47cf9afa77f642fc2b3efe172 /init/initramfs.c
parent05eeae208d08a05a6980cf2ff61f02843c0955fd (diff)
downloadlinux-linaro-stable-340e48e662dc9bf79cdd9dc755cb2eb2bad580cd.tar.gz
[PATCH] BLK_DEV_INITRD: do not require BLK_DEV_RAM=y
Initramfs initrd images do not need a ramdisk device, so remove this restriction in Kconfig. BLK_DEV_RAM=n saves about 13k on i386. Also without ramdisk device there's no need for "dry run", so initramfs unpacks much faster. People using cramfs, squashfs, or gzipped ext2/minix initrd images are probably smart enough not to turn off ramdisk support by accident. Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'init/initramfs.c')
-rw-r--r--init/initramfs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/init/initramfs.c b/init/initramfs.c
index 637344b05981..77b934cccefe 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -506,6 +506,7 @@ void __init populate_rootfs(void)
panic(err);
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start) {
+#ifdef CONFIG_BLK_DEV_RAM
int fd;
printk(KERN_INFO "checking if image is initramfs...");
err = unpack_to_rootfs((char *)initrd_start,
@@ -525,6 +526,15 @@ void __init populate_rootfs(void)
sys_close(fd);
free_initrd();
}
+#else
+ printk(KERN_INFO "Unpacking initramfs...");
+ err = unpack_to_rootfs((char *)initrd_start,
+ initrd_end - initrd_start, 0);
+ if (err)
+ panic(err);
+ printk(" done\n");
+ free_initrd();
+#endif
}
#endif
}