On 03/13/2014 10:00 PM, [email protected] wrote:
> Hi!
>> +
>> + tst_require_root
>> +
>> + EXT4_SUPPORT1=`grep -w ext4 /proc/filesystems | cut -f2`
>> + EXT4_SUPPORT2=`grep -w ext4 /proc/modules | cut -f1`
> Hmm, that would not work when ext4 is compiled in kernel. I have ext4 in
> /proc/filesystems/ but not in /proc/modules/
EXT4_SUPPORT1=`grep -w ext4 /proc/filesystems | cut -f2`
EXT4_SUPPORT2=`grep -w ext4 /proc/modules | cut -f1`
if [ "$EXT4_SUPPORT1" != "ext4" ] && [ "$EXT4_SUPPORT2" != "ext4" ];then
tst_brkm TCONF ignored "Ext4 is not supported"
exit 0
fi
If you have ext4 compiled in kernel, EXT4_SUPPORT1's value will be "ext4", so
the "tst_brkm TCONF ignored..." statement won't be executed.
But that would not work when ext4 is not compiled in kernel :-)
In this case, EXT4_SUPPORT1 will be none. And if there is no ext4 file system
currently
mounted, the EXT4_SUPPORT2 will also be none.
Indeed the ext4 module maybe exist in /lib/modules/`uname -r`, so
using modprobe would be better, thanks.
modprobe rcutorture > /dev/null 2>&1
if [ $? -ne 0 ]; then
tst_brkm TCONF ignored "Ext4 is not supported"
fi
Wang
>
> Othewise it looks good. And sorry for the late review.
>
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