cvs commit: src/sys/sys mount.h src/sys/nfsclient nfs_vfsops.c src/sys/kern vfs_mount.c

[Alexander Kabaev]

kan         2003/11/11 18:54:47 PST

  FreeBSD src repository

  Modified files:
    sys/sys              mount.h 
    sys/nfsclient        nfs_vfsops.c 
    sys/kern             vfs_mount.c 
  Log:
  1. Consolidate mount struct allocation/destruction into a common code in
  vfs_mount_alloc/vfs_mount_destroy functions and take care to completely
  destroy the mount point along with its locks. Mount struct has grown in
  coplexity recently and depending on each failure path to destroy it
  completely isn't working anymore.
  
  2. Eliminate largely identical vfs_mount and vfs_unmount question by
  moving the code to handle both cases into a newly introduced vfs_domount
  function.
  
  3. Simplify nfs_mount_diskless to always expect an allocated mount
  struct and never attempt an allocation/destruction itself. The
  vfs_allocroot allocation was there to support 'magic' swap space
  configuration for diskless clients that was already removed by PHK some
  time ago.
  
  4. Include a vfs_buildopts cleanups by Peter Edwards to validate the
  sanity of nmount parameters passed from userland.
  
  Submitted by:  (4) Peter Edwards <peter.edwards at openet-telecom.com>
  Reviewed by:    rwatson
  
  Revision  Changes    Path
  1.113     +171 -429  src/sys/kern/vfs_mount.c
  1.143     +3 -23     src/sys/nfsclient/nfs_vfsops.c
  1.150     +1 -0      src/sys/sys/mount.h