From owner-cvs-all  Sat Oct  9 12:44:36 1999
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From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Sat, 9 Oct 1999 12:44:33 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/sys buf.h src/sys/kern kern_physio.c
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phk         1999/10/09 12:44:33 PDT

  Modified files:
    sys/sys              buf.h 
    sys/kern             kern_physio.c 
  Log:
  Give physio a makeover.
  
  - Let physio take read/write compatible args and have it use uio->uio_rw
    to determine the direction.
  
  - physread/physwrite are now #defines for physio
  
  - Remove the inversly named minphys(), dev->si_iosize_max takes over.
  
  - Physio() always uses pbufs.
  
  - Fix the check for non page-aligned transfers, now only unaligned
    transfers larger than (MAXPHYS - PAGE_SIZE) get fragmented (only
    interesting for tapes using max blocksize).
  
  - General wash-and-clean of code.
  
  Constructive input from: bde
  
  Revision  Changes    Path
  1.81      +4 -6      src/sys/sys/buf.h
  1.45      +55 -122   src/sys/kern/kern_physio.c



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