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From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 21 Aug 2009 03:14:39 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/share/man/man9 sglist.9 src/sys/kern subr_sglist.c
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jhb         2009-08-21 03:14:39 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    share/man/man9       sglist.9 
    sys/kern             subr_sglist.c 
  Log:
  SVN rev 196418 on 2009-08-21 03:14:39Z by jhb
  
  MFC 196417:
  This patch fixes two bugs in sglist(9) and improves robustness of the API via
  better semantics if a request to append an address range to an existing list
  fails.
  - When cloning an sglist, properly set the length in the new sglist instead of
    leaving the new list empty.
  - Properly compute the amount of data added to an sglist via
    _sglist_append_buf().  This allows sglist_consume_uio() to properly update
    uio_resid.
  - When a request to append an address range to a scatter/gather list fails,
    restore the sglist to the state it had at the start of the function call
    instead of resetting it to an empty list.
  
  Approved by:    re (kib)
  
  Revision  Changes    Path
  1.1.2.3   +4 -0      src/share/man/man9/sglist.9
  1.1.2.3   +74 -16    src/sys/kern/subr_sglist.c