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proc_misc_init() has both these lines in it:
entry = create_proc_entry("kmsg", S_IRUSR, &proc_root); proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
Both entries show up in /proc, as /proc/kmsg and /proc/kcore. So I ask, as I can't see after several minutes of examination, what's the difference? Why is NULL used for some and &proc_root used for others?
I'm looking at 2.6.10
create_proc_entry() passes &parent to proc_create().
See proc_create():
...
This is an error path:
if (!(*parent) && xlate_proc_name(name, parent, &fn) != 0)
goto out;
but xlate_proc_name() searches for a /proc/.... and returns the all-but-final-part-of-name *parent (hope that makes some sense,
see the comments above the function), so it returns &proc_root.
HTH. If not, fire back. -- ~Randy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
