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From: Joe Marcus Clarke <marcus@FreeBSD.org>
Date: Fri, 12 Dec 2008 00:57:38 +0000 (UTC)
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Subject: cvs commit: src/sys/kern vfs_cache.c vfs_default.c vnode_if.src
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marcus      2008-12-12 00:57:38 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_cache.c vfs_default.c vnode_if.src 
  Log:
  SVN rev 185956 on 2008-12-12 00:57:38Z by marcus
  
  Add a new VOP, VOP_VPTOCNP, which translates a vnode to its component name
  on a best-effort basis.  Teach vn_fullpath to use this new VOP if a
  regular VFS cache lookup fails.  This VOP is designed to supplement the
  VFS cache to provide a better chance that a vnode-to-name lookup will
  succeed.
  
  Currently, an implementation for devfs is being committed.  The default
  implementation is to return ENOENT.
  
  A big thanks to kib for the mentorship on this, and to pho for running it
  through his stress test suite.
  
  Reviewed by:    arch
  Approved by:    kib
  
  Revision  Changes    Path
  1.129     +77 -24    src/sys/kern/vfs_cache.c
  1.146     +8 -0      src/sys/kern/vfs_default.c
  1.95      +10 -0     src/sys/kern/vnode_if.src