bde 2007-08-03 23:13:51 UTC FreeBSD src repository
Modified files: sys/fs/msdosfs msdosfs_fat.c msdosfs_vfsops.c Log: Oops, fix the fix for the i/o size of the fsinfo block. Its log message explained why the size is 1 sector, but the code used a size of 1 cluster. I/o sizes larger than necessary may cause serious coherency problems in the buffer cache. Here I think there were only minor efficiency problems, since a too-large fsinfo buffer could only get far enough to overlap buffers for the same vnode (the device vnode), so mappings are coherent at the page level although not at the buffer level, and the former is probably enough due to our limited use of the fsinfo buffer. Approved by: re (kensmith) Revision Changes Path 1.43 +1 -1 src/sys/fs/msdosfs/msdosfs_fat.c 1.168 +1 -1 src/sys/fs/msdosfs/msdosfs_vfsops.c _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"