Date: Sun, 17 Apr 2005 01:33:19 -0400 (EDT) From: Jeff Roberson <jroberson@chesapeake.net> To: David Schultz <das@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/fs/msdosfs msdosfs_lookup.c Message-ID: <20050417013241.O67458@mail.chesapeake.net> In-Reply-To: <200504162347.j3GNlJUA010418@repoman.freebsd.org> References: <200504162347.j3GNlJUA010418@repoman.freebsd.org>
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On Sat, 16 Apr 2005, David Schultz wrote: > das 2005-04-16 23:47:19 UTC > > FreeBSD src repository > > Modified files: > sys/fs/msdosfs msdosfs_lookup.c > Log: > Disable negative name caching for msdosfs to work around a bug. > Since the name cache is case-sensitive and msdosfs isn't, > creating a file 'foo' won't invalidate a negative entry for 'FOO'. > There are similar problems related to 8.3 filenames. > > A better solution is to override VOP_LOOKUP with a method that > canonicalizes the name, then calls vfs_cache_lookup(). Unfortunately, > it's not quite that simple because vfs_cache_lookup() will call > msdosfs_lookup() on a cache miss, and msdosfs_lookup() needs a way to > get at the original component name. Use cache_lookup() directly rather than vfs_cache_lookup. It won't try to call VOP_CACHEDLOOKUP. > > Revision Changes Path > 1.46 +7 -0 src/sys/fs/msdosfs/msdosfs_lookup.c >
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