Messages in this thread | | | Date | Mon, 05 Mar 2007 07:09:38 -0800 | From | Ulrich Drepper <> | Subject | Re: [RFC] Heads up on sys_fallocate() |
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Jörn Engel wrote: > The bad news for posix_fallocate() is that even if libc is smart enough > to write random data, mmap() can still cause problems.
This is not smart, quite to the contrary. The standard guarantees that all not-yet-written-to places in the file are zero. And if a block has already been written posix_fallocate cannot change it.
-- ➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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