Ian Dowse f55ff3f3ef The ffs superblock includes a 128-byte region for use by temporary ... in-core pointers to summary information. An array in this region (fs_csp) could overflow on filesystems with a very large number of cylinder groups (~16000 on i386 with 8k blocks). When this happens, other fields in the superblock get corrupted, and fsck refuses to check the filesystem. Solve this problem by replacing the fs_csp array in 'struct fs' with a single pointer, and add padding to keep the length of the 128-byte region fixed. Update the kernel and userland utilities to use just this single pointer. With this change, the kernel no longer makes use of the superblock fields 'fs_csshift' and 'fs_csmask'. Add a comment to newfs/mkfs.c to indicate that these fields must be calculated for compatibility with older kernels. Reviewed by: mckusick		2001-01-15 18:30:40 +00:00
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dumpfs.8	mdoc(7) police: use the new features of the Nm macro.	2000-11-20 16:52:27 +00:00
dumpfs.c	The ffs superblock includes a 128-byte region for use by temporary	2001-01-15 18:30:40 +00:00
Makefile