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8-}
The real message was:
On Wed, Apr 20, 2011 at 12:16:39PM +0000, Antoine Pitrou wrote:
> If Apple thinks [...] there's no reason for us
Apple thinks (KernelProgramming.pdf, BPFileSystem.pdf):
 Kernel code must be nearly perfect.
 Kernel programming is a black art that should be avoided if at
 all possible. Fortunately, kernel programming is usually
 unnecessary. You can write most software entirely in user
 space.
 Sparse files and zero filling. UFS supports sparse files,
 which are a way for the file system to store the data in files
 without storing unused space allocated for those files. HFS+
 does not support sparse files and, in fact, zero-fills all
 bytes allocated for a file until end-of-file.
 [Steffen thinks HFS+ is driven from "user-space" through IOKit.]
POSIX says:
 It would also not be unreasonable to omit testing for fsync(),
 allowing it to be treated as a quality-of-implementation
 issue.
It seems someone needs a hand.
Nice afternoon with an untrashed INBOX.