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    SubjectRe: [PATCH v7 0/7] Add O_DENY* support for VFS and CIFS/NFS
    From
    2014/1/20 Volker Lendecke <Volker.Lendecke@sernet.de>:
    >> You can try to use O_PATH flag. It doesn't give you a delete access
    >> but should be ok because further deleting will be done without file
    >> descriptor -- through unlink syscall.
    >
    > Ok, I did not know about O_PATH. Thanks for that!
    >
    > So I do an open with O_PATH. How do I then make sure that
    > nobody else has a O_DENYDELETE set without doing the unlink
    > itself?

    It's not possible with the current API to do it through open syscall.
    Another possibility is to look at /proc/locks. But I think we really
    need O_DELETE flag that will force a file to be removed on close - we
    will be able to do O_DENYDELETE checks atomically.

    --
    Best regards,
    Pavel Shilovsky.


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