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

kib         2010-09-11 13:06:06 UTC
 
  FreeBSD src repository
 
  Modified files:
    sys/kern             vfs_mount.c vfs_subr.c
    sys/sys              mount.h
  Log:
  SVN rev 212466 on 2010-09-11 13:06:06Z by kib
 
  Protect mnt_syncer with the sync_mtx. This prevents a (rare) vnode leak
  when mount and update are executed in parallel.
 
  Encapsulate syncer vnode deallocation into the helper function
  vfs_deallocate_syncvnode(), to not externalize sync_mtx from vfs_subr.c.
 
  Found and reviewed by:  jh (previous version of the patch)
  Tested by:      pho
  MFC after:      3 weeks
 
  Revision  Changes    Path
  1.321     +6 -11     src/sys/kern/vfs_mount.c
  1.793     +27 -4     src/sys/kern/vfs_subr.c
  1.253     +1 -0      src/sys/sys/mount.h