[Ocfs2-devel] why skip zero is removed?

[Ling, Xiaofeng]

>-----Original Message-----
>	Directories and system files never get to this code, because
>they are not in the pagecache.  Directories do not need zeroing, as you
>know.  System files get their zeroing in ocfs_extend_file() as 
>they have
>always done.  Note that the check in ocfs_extend_file() is now
>"if (system_file)".  This check will fail for directories, so there is
>no point in adding skip_zeros to skip it.
So the drop is not caused by zeros. But now I can not reproduce it after
the 
machine is rebooted. The performance now is high again. A strange
problem.