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From: KATO Takenori <kato@FreeBSD.ORG>
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Date: Tue, 20 Jan 1998 02:02:56 -0800 (PST)
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To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG
Subject: cvs commit: src/sys/miscfs/union union.h union_subr.c
         union_vnops.c
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kato        1998/01/20 02:02:56 PST

  Modified files:
    sys/miscfs/union     union.h union_subr.c union_vnops.c 
  Log:
  - Move SETKLOC and CLEARKLOCK macros into uion.h.
  - Set UN_ULOCK in union_lock() when UN_KLOCK is set.  Caller expects
    that vnode is locked correctly, and may call another function which
    expects locked vnode and may unlock the vnode.
  - Do not assume the behavior of inside functions in FreeBSD's
    vfs_suber.c is same as 4.4BSD-Lite2.  Vnode may be locked in
    vget() even though flag is zero.  (Locked vnode is, of course,
    unlocked before returning from vget.)
  
  Revision  Changes    Path
  1.10      +4 -1      src/sys/miscfs/union/union.h
  1.24      +18 -1     src/sys/miscfs/union/union_subr.c
  1.49      +11 -8     src/sys/miscfs/union/union_vnops.c