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    SubjectRe: [PATCH] eCryptfs: Delay writing 0's after llseek until write
    On Mon, May 21, 2007 at 09:07:08PM -0700, Andrew Morton wrote:
    > On Mon, 21 May 2007 18:00:21 -0500 Michael Halcrow <mhalcrow@us.ibm.com> wrote:
    >
    > > Delay writing 0's out in eCryptfs after a seek past the end of the
    > > file until data is actually written.
    >
    > a) why?

    http://www.opengroup.org/onlinepubs/009695399/functions/lseek.html

    ``The lseek() function shall not, by itself, extend the size of a
    file.''

    > b) what is the impact upon a user of them not having this patch?

    Applications that lseek() past the end of the file without writing
    will experience unexpected behavior.

    Mike
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