Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH 00/74] Union mounts version something or other | Date | Thu, 21 Apr 2011 14:09:34 +0100 |
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Valerie Aurora <valerie.aurora@gmail.com> wrote:
> That's never up to date, but I just fixed it. The branch you want is > "ext2_cleanup". Any branch with "+" at the front is a mistake from > trying to do a git push of a rebased branch. I deleted it.
Okay, I've got that pulled up to Linus's head branch. I've mostly got the RCU pathwalk and managed dentry stuff correctly entangled.
However, I have a few questions:
(1) Is it meant to be possible to unionmount over a mount tree rather than just a single mount? I ask because do_lookup_union() calls __follow_mount().
(2) When you open a file that exists in the lower layer but not the top layer, am I right in thinking that f_path points to the lower layer file?
(3) If I'm correct in (2), I presume something must intercept fchown() and suchlike?
(4) I presume IS_DIR_UNIONED() only gives true on the upper layer (the one that was mounted -o union)?
David
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