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image_types.bbclass: use mke2fs -d to create the ext2/3/4 image 

We used populate-extfs.sh which invoked the debugfs to create the image,
now the mke2fs' option "-d root-directory" can do the same thing, and
which is more faster, for example, the core-imag-sato:

* In the past:
$ time mke2fs -t ext4 rootfs.ext4
real    0m0.249s
user    0m0.036s
sys     0m0.132s
$ time populate-extfs.sh /path/to/rootfs/ rootfs.ext4
real    0m29.355s
user    0m10.637s
sys     0m5.544s

* Now:
$ time mkfs.ext4 -F -d /path/to/rootfs/ rootfs.ext4
real    0m6.338s
user    0m3.824s
sys     0m1.356s

More than 25 seconds are saved.

[YOCTO #4083]

(From OE-Core rev: 6338fe9ba338615317a4e7ccc99287b236ac77ae)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Robert Yang 2014-03-07 01:59:34 -05:00 committed by Richard Purdie
parent fb980f759b
commit 5809ce0c89
1 changed files with 1 additions and 2 deletions
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3
meta/classes/image_types.bbclass
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@ -49,8 +49,7 @@ oe_mkext234fs () {
# Create a sparse image block
dd if=/dev/zero of=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype seek=$ROOTFS_SIZE count=0 bs=1k
mkfs.$fstype -F $extra_imagecmd ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype
populate-extfs.sh ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype
mkfs.$fstype -F $extra_imagecmd ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.$fstype -d ${IMAGE_ROOTFS}
}
IMAGE_CMD_ext2 = "oe_mkext234fs ext2 ${EXTRA_IMAGECMD}"