From owner-cvs-all  Mon Dec 24 17:44:52 2001
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From: Matt Dillon <dillon@FreeBSD.org>
Date: Mon, 24 Dec 2001 17:44:46 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/kern kern_lock.c vfs_vnops.c src/sys/sys buf.h
         lock.h vnode.h src/sys/ufs/ffs ffs_vfsops.c src/sys/vm
         vm_pageout.c src/sys/fs/hpfs hpfs_vfsops.c src/sys/fs/smbfs
         smbfs_node.c src/sys/miscfs/union union_subr.c src/sys/msdosfs ...
X-FreeBSD-CVS-Branch: RELENG_4
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dillon      2001/12/24 17:44:46 PST

  Modified files:        (Branch: RELENG_4)
    sys/kern             kern_lock.c vfs_vnops.c 
    sys/sys              buf.h lock.h vnode.h 
    sys/ufs/ffs          ffs_vfsops.c 
    sys/vm               vm_pageout.c 
    sys/fs/hpfs          hpfs_vfsops.c 
    sys/fs/smbfs         smbfs_node.c 
    sys/miscfs/union     union_subr.c 
    sys/msdosfs          msdosfs_denode.c 
    sys/ntfs             ntfs_vfsops.c 
    sys/nwfs             nwfs_node.c 
  Log:
  MFC the following:
  
      * LK_TIMEOUT lock flag to separate lock acquisition with and without
        a timeout (dillon)
  
      * use of LK_TIMEOUT in BUF_TIMELOCK to avoid timeout race aginst
        BUF_LOCK (dillon)
  
      * use of LK_TIMEOUT in pageout vget() code to avoid deadlock (dillon)
  
      * move vnode reclaim into its own kthread to avoid deadlocks (Yahoo)
  
      * remove 'VXLOCK interlock avoided' messages.. they can occur
        under normal operation and create a choking hazzard on the console.
  
      * Adjust VMIGHTFREE macro used with vnode reclaim code to avoid
        eating large amounts of cpu with little to show for it in certain
        situations.
  
      * Add VREF/VRELE around UFS_UPDATE() call to avoid update/reclaim
        race (note: snuck in at last minute but I accidently did a partial
        commit a moment ago and the tree is broken until I commit the rest
        of it).  This is minor and will be tested heavily.
  
  Approved by:    Release Engineers
  
  Revision    Changes    Path
  1.3.2.2     +2 -2      src/sys/fs/hpfs/hpfs_vfsops.c
  1.2.2.2     +1 -1      src/sys/fs/smbfs/smbfs_node.c
  1.31.2.3    +5 -3      src/sys/kern/kern_lock.c
  1.87.2.10   +3 -2      src/sys/kern/vfs_vnops.c
  1.43.2.2    +2 -2      src/sys/miscfs/union/union_subr.c
  1.47.2.2    +2 -2      src/sys/msdosfs/msdosfs_denode.c
  1.20.2.5    +1 -1      src/sys/ntfs/ntfs_vfsops.c
  1.3.2.8     +2 -2      src/sys/nwfs/nwfs_node.c
  1.88.2.7    +2 -2      src/sys/sys/buf.h
  1.17.2.3    +3 -2      src/sys/sys/lock.h
  1.111.2.18  +8 -3      src/sys/sys/vnode.h
  1.117.2.7   +9 -1      src/sys/ufs/ffs/ffs_vfsops.c
  1.151.2.11  +12 -4     src/sys/vm/vm_pageout.c

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