cvs commit: src/sys/vfs/hammer hammer.h hammer_disk.h hammer_io.c hammer_ondisk.c

Matthew Dillon dillon at
Fri Aug 29 13:19:37 PDT 2008

dillon      2008/08/29 13:19:08 PDT

DragonFly src repository

  Modified files:
    sys/vfs/hammer       hammer.h hammer_disk.h hammer_io.c 
  HAMMER: Mass storage flush command support
  Add mass storage flush command support to HAMMER.  The HAMMER flush cycle
  issues async I/O in parallel and waits for it to complete before moving
  onto the next stage.  This occurs in two places.  The new flush command
  is issued after the async I/O, and then we wait on everything.
  Due to HAMMER's ability to gang writes asynchronously between stages the
  addition of the flush should not significantly impact performance.
  Revision  Changes    Path
  1.127     +4 -2      src/sys/vfs/hammer/hammer.h
  1.53      +1 -0      src/sys/vfs/hammer/hammer_disk.h
  1.54      +72 -2     src/sys/vfs/hammer/hammer_io.c
  1.76      +7 -7      src/sys/vfs/hammer/hammer_ondisk.c

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