On Mar 18, 2009, at 12:43, Bob Friesenhahn wrote:
POSIX does not care about "disks" or "filesystems". The only correct behavior is for operations to be applied in the order that they are requested of the operating system. This is a core function of any operating system. It is therefore ok for some (or all) of the data which was written to "new" to be lost, or for the rename operation to be lost, but it is not ok for the rename to end up with a corrupted file with the new name.
Out of curiousity, is this what POSIX actually specifies? If that is the case, wouldn't that mean that the behaviour of ext3/4 is incorrect? (Assuming that it does re-order operations.)
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