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authorP J P <ppandit@redhat.com>2013-11-12 15:11:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 12:09:36 +0900
commit1bf49dd4be0b000030c6f04c4a16a17d9affdbd3 (patch)
treea4defe0519060101b6c27a6e1f3dad7b5590cb85 /init
parent69f0554ec261fd686ac7fa1c598cc9eb27b83a80 (diff)
downloadlinux-linaro-stable-1bf49dd4be0b000030c6f04c4a16a17d9affdbd3.tar.gz
./Makefile: export initial ramdisk compression config option
Make menuconfig allows one to choose compression format of an initial ramdisk image. But this choice does not result in duly compressed ramdisk image. Because - $ make install - does not pass on the selected compression choice to the dracut(8) tool, which creates the initramfs file. dracut(8) generates the image with the default compression, ie. gzip(1). This patch exports the selected compression option to a sub-shell environment, so that it could be used by dracut(8) tool to generate appropriately compressed initramfs images. There isn't a straightforward way to pass on options to dracut(8) via positional parameters. Because it is indirectly invoked at the end of a $ make install sequence. # make install -> arch/$arch/boot/Makefile -> arch/$arch/boot/install.sh -> /sbing/installkernel ... -> /sbin/new-kernel-pkg ... -> /sbin/dracut ... Signed-off-by: P J P <ppandit@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/do_mounts_rd.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 143e98de6f29..7c098ac9068a 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -57,6 +57,11 @@ static int __init crd_load(int in_fd, int out_fd, decompress_fn deco);
* cramfs
* squashfs
* gzip
+ * bzip2
+ * lzma
+ * xz
+ * lzo
+ * lz4
*/
static int __init
identify_ramdisk_image(int fd, int start_block, decompress_fn *decompressor)