Date: Sat, 3 Jul 2004 13:22:39 +0000 (UTC) From: "Tim J. Robbins" <tjr@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/conf NOTES files options src/sys/fs/msdosfs msdosfs_fileno.c msdosfs_vfsops.c msdosfs_vnops.c msdosfsmount.h src/sys/modules/msdosfs Makefile Message-ID: <200407031322.i63DMdqC084182@repoman.freebsd.org>
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tjr 2004-07-03 13:22:39 UTC FreeBSD src repository Modified files: sys/conf NOTES files options sys/fs/msdosfs msdosfs_vfsops.c msdosfs_vnops.c msdosfsmount.h sys/modules/msdosfs Makefile Added files: sys/fs/msdosfs msdosfs_fileno.c Log: By popular request, add a workaround that allows large (>128GB or so) FAT32 filesystems to be mounted, subject to some fairly serious limitations. This works by extending the internal pseudo-inode-numbers generated from the file's starting cluster number to 64-bits, then creating a table mapping these into arbitrary 32-bit inode numbers, which can fit in struct dirent's d_fileno and struct vattr's va_fileid fields. The mappings do not persist across unmounts or reboots, so it's not possible to export these filesystems through NFS. The mapping table may grow to be rather large, and may grow large enough to exhaust kernel memory on filesystems with millions of files. Don't enable this option unless you understand the consequences. Revision Changes Path 1.1241 +12 -0 src/sys/conf/NOTES 1.923 +1 -0 src/sys/conf/files 1.460 +3 -0 src/sys/conf/options 1.1 +163 -0 src/sys/fs/msdosfs/msdosfs_fileno.c (new) 1.121 +14 -0 src/sys/fs/msdosfs/msdosfs_vfsops.c 1.148 +33 -13 src/sys/fs/msdosfs/msdosfs_vnops.c 1.33 +23 -1 src/sys/fs/msdosfs/msdosfsmount.h 1.21 +4 -1 src/sys/modules/msdosfs/Makefile
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