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Comparing libeio/eio.pod (file contents):
Revision 1.30 by root, Wed Jan 11 05:13:22 2012 UTC vs.
Revision 1.31 by root, Fri Dec 28 20:05:45 2012 UTC

… …
630 630
631=over 4 631=over 4
632 632
633=item eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data) 633=item eio_mtouch (void *addr, size_t length, int flags, int pri, eio_cb cb, void *data)
634 634
635Reads (C<flags == 0>) or modifies (C<flags == EIO_MT_MODIFY) the given 635Reads (C<flags == 0>) or modifies (C<flags == EIO_MT_MODIFY>) the given
636memory area, page-wise, that is, it reads (or reads and writes back) the 636memory area, page-wise, that is, it reads (or reads and writes back) the
637first octet of every page that spans the memory area. 637first octet of every page that spans the memory area.
638 638
639This can be used to page in some mmapped file, or dirty some pages. Note 639This can be used to page in some mmapped file, or dirty some pages. Note
640that dirtying is an unlocked read-write access, so races can ensue when 640that dirtying is an unlocked read-write access, so races can ensue when

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