git: kernel - Add max I/O size cap to vmaxiosize()

Matthew Dillon dillon at crater.dragonflybsd.org
Mon Apr 2 10:17:40 PDT 2012


commit 201cd6122f10d34494e93bdd304d21f94f3d0a29
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Mon Apr 2 10:16:21 2012 -0700

    kernel - Add max I/O size cap to vmaxiosize()
    
    * Cap the returned value at MAXPHYS, allowing VCHR devices to set a
      higher max-IO limit (according to DMA limitations) without blowing
      out the pbuf's that the frontend uses to build clustered I/O.

Summary of changes:
 sys/kern/vfs_subr.c |   18 +++++++++++++-----
 1 files changed, 13 insertions(+), 5 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/201cd6122f10d34494e93bdd304d21f94f3d0a29


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