Is it possible to directly call do_path_lookup() in kernel?
From: Xin Zhao
Date: Tue Jan 23 2007 - 13:32:43 EST
Hi,
I tried to call the following code in a kernel module:
error = do_path_lookup(AT_FDCWD, "/etc/profile.d/glib2.csh",
LOOKUP_PARENT, &nd);
I exported the function do_path_lookup() using
"EXPORT_SYMBOL_GPL(do_path_lookup);"
But do_path_lookup() caused the "general protection fault: 0000 [#1]"
kernel error.
I thought it could be the problem of protection error, so I used the
following codes to enclose the code that calls do_path_lookup(), but
still got the same error.
fs = get_fs (); /* save previous value */
set_fs (KERNEL_DS); /* use kernel limit */
......
set_fs(fs);
Any idea on this?
Thanks a lot!
-x
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