Re: NFS locking bug -- limited mtime resolution means nfs_lock() does not provide coherency guarantee

From: Theodore Y. Ts'o (tytso@MIT.EDU)
Date: Thu Sep 14 2000 - 11:18:50 EST

   Date: Thu, 14 Sep 2000 17:03:11 +0200 (CEST)
   From: Trond Myklebust <trond.myklebust@fys.uio.no>

   For the timestamps, yes, but inode caching will take most of that
   hit. After all, the only time stat() reads from disk is when the inode
   has completely fallen out of the cache.

For commonly used inodes, sure, but there are lots of applications where
the inode cache doesn't buy you that much.

                                                - Ted
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