[Bugs] [Bug 762766] rename() is not atomic

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=762766

Anand Avati <aavati at redhat.com> changed:

           What    |Removed                     |Added
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                 CC|                            |aavati at redhat.com



--- Comment #21 from Anand Avati <aavati at redhat.com> ---
Several changes are needed for the test program to work

1. FUSE needs to send open intent along with lookup, if the lookup is being
performed for an open()

2. Gluster needs to somehow use the intent flag, and keep the server side inode
"alive" (as if already opened) for some time for a future actual open's
guaranteed success even in the event of the file getting unlink'ed or rename'd
over.

3. Server side resolver must serialize over dentries to fix the lookup/open +
unlink race.

1 and 2 are somewhat related, 3 fixes a separate issue. all fixes are needed
for this bug.

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