cvs commit: src/sys/fs/specfs spec_vnops.c src/sys/ufs/ffs ffs_vnops.c

[Poul-Henning Kamp]

phk         2004-09-19 08:14:55 UTC

  FreeBSD src repository

  Modified files:
    sys/fs/specfs        spec_vnops.c 
    sys/ufs/ffs          ffs_vnops.c 
  Log:
  The getpages VOP was a good stab at getting scatter/gather I/O without
  too much kernel copying, but it is not the right way to do it, and it is
  in the way for straightening out the buffer cache.
  
  The right way is to pass the VM page array down through the struct
  bio to the disk device driver and DMA directly in to/out off the
  physical memory.  Once the VM/buf thing is sorted out it is next on
  the list.
  
  Retire most of vnode method. ffs_getpages().  It is not clear if what is
  left shouldn't be in the default implementation which we now fall back to.
  
  Retire specfs_getpages() as well, as it has no users now.
  
  Revision  Changes    Path
  1.228     +0 -181    src/sys/fs/specfs/spec_vnops.c
  1.134     +5 -112    src/sys/ufs/ffs/ffs_vnops.c