image_types.bbclass: use 4096 instead of 8192 bytes-per-inode

The image not correctly created if 'ptest-pkgs' is in IMAGE_FEATURES,
this is because there is no free inode left. We can use 4096 instead of
8192 bytes-per-inode to fix the problem, and most of the distributions
us 4096, such as Ubuntu, Suse, Fedora and CentOS.

There are another problems:
* There are error message when there is no free inode left if we run the
  mke2fs command manually, but they are not in log.do_rootfs.

* The image generation doesn't stop when error happens because mke2fs
  doesn't return failed for this case.

Will fix them in other threads.

[YOCTO #5957]

(From OE-Core master rev: 09ab3a00598d06e3a1bf871811c2ac37359c74da)

(From OE-Core rev: ec8ae16e35fd7db6a5bb12412d50ab6f355b0f6e)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index f4938d14bd..09f3b477e7 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -210,9 +210,9 @@ JFFS2_ERASEBLOCK ?= "0x40000"
 EXTRA_IMAGECMD_jffs2 ?= "--pad ${JFFS2_ENDIANNESS} --eraseblock=${JFFS2_ERASEBLOCK} --no-cleanmarkers"
 
 # Change these if you want default mkfs behavior (i.e. create minimal inode number)
-EXTRA_IMAGECMD_ext2 ?= "-i 8192"
-EXTRA_IMAGECMD_ext3 ?= "-i 8192"
-EXTRA_IMAGECMD_ext4 ?= "-i 8192"
+EXTRA_IMAGECMD_ext2 ?= "-i 4096"
+EXTRA_IMAGECMD_ext3 ?= "-i 4096"
+EXTRA_IMAGECMD_ext4 ?= "-i 4096"
 EXTRA_IMAGECMD_btrfs ?= ""
 EXTRA_IMAGECMD_elf ?= ""