Simon Wilkinson wrote:
On 27 Aug 2008, at 02:18, Chas Williams (CONTRACTOR) wrote:
In message
<[EMAIL PROTECTED]>,Mike Shaddock
writes:
I'm looking for a version of du where the -x option (skip directories
on different file systems) doesn't traverse an AFS mount poi
nt. Haven't been able to find anything via searching, so I thought
I'd ask here.
i have an interesting idea. on linux this would be pretty easy.
after generic_fill_attr() we could encode the volumeid in the i_dev
field instead of the s_dev field from the superblock. this should make
this work. i cant think of anything it would break.
Unless I'm missing something, this breaks anything that relies on stat's
st_dev field to determine whether a file is in AFS or not. Filedrawers
is one example, and I'm sure there are others.
It also breaks anybody who expects -x to traverse the whole filesystem.
mountpoint != filesystem
The OpenAFS "up" utility has an explicit flag for stopping its traversal
at mountpoints. I don't see a cheap way to conflate the two meanings
with one flag and not break somebody.
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