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5c5ba0de81
freebsd-dev/sys
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iedowse 5c5ba0de81 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
..
alpha Remove NOBLOCKRANDOM as a compile-time option. Instead, provide 2001-01-14 17:50:15 +00:00
amd64 Implement an optimization for INTREN/INTRDIS that bde pointed out last 2001-01-15 04:18:58 +00:00
arm/include Remove seconds types we don't use that came in thru the NetBSD heiratage. 2001-01-08 06:17:11 +00:00
boot Add commented out examples for the new KTR loader tunables. 2001-01-06 06:52:49 +00:00
cam Check __i386__, not i386. 2001-01-13 13:21:43 +00:00
coda Delete unused #include <sys/select.h>. 2001-01-09 04:32:24 +00:00
compat Instead of hard coding the major numbers for IDE and SCSI disks 2001-01-14 23:33:50 +00:00
compile
conf Make NSWAPDEV reasonable so people do not mistakenly use unreasonable 2001-01-15 06:45:01 +00:00
contrib Disable strstr() if ACPICA is compiled in userland. 2001-01-10 19:28:03 +00:00
crypto This commit was generated by cvs2svn to compensate for changes in r67957, 2000-10-30 11:03:32 +00:00
ddb Use macro API for <sys/queue.h> 2000-12-30 22:06:19 +00:00
dev Add support for SMC91C100FD chip of MELCO LPC-TX. 2001-01-15 12:01:14 +00:00
fs Delete unused #include <sys/select.h>. 2001-01-09 04:32:24 +00:00
geom Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
gnu Completed move of Digiboard drivers to dev/dgb 2001-01-08 02:47:37 +00:00
i4b it seems that a commit to i4b/drivers/i4b_ispppsubr.c on 2000-01-12 has 2001-01-15 14:58:46 +00:00
i386 Make NSWAPDEV reasonable so people do not mistakenly use unreasonable 2001-01-15 06:45:01 +00:00
ia64 Remove NOBLOCKRANDOM as a compile-time option. Instead, provide 2001-01-14 17:50:15 +00:00
isa select() DKI is now in <sys/selinfo.h>. 2001-01-09 04:33:49 +00:00
isofs/cd9660 Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
kern A bit of sanity-checking in bioqdisksort(): panic if we recurse. 2001-01-14 18:48:42 +00:00
libkern Convert all instances of: 2001-01-12 07:28:46 +00:00
miscfs Don't compile a dead variable declaration. 2001-01-09 04:24:43 +00:00
modules Evidently, svr4 is broken at the moment. Disconnect the build to prevent 2001-01-09 04:56:53 +00:00
msdosfs Use macro API to <sys/queue.h> 2000-12-31 10:24:19 +00:00
net select() DKI is now in <sys/selinfo.h>. 2001-01-09 04:33:49 +00:00
netatalk * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
netatm * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
netgraph Add a generic "queued function callin" mechanism 2001-01-14 23:25:54 +00:00
netinet Prototype inet_ntoa_r and thereby silence a warning from GCC. The function 2001-01-12 07:47:53 +00:00
netinet6 do not touch ra_addr if it is NULL. from IIJ SEIL team 2001-01-02 15:17:19 +00:00
netipx * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
netkey fixed possibility of panic at key_acquire(). 2001-01-14 17:25:08 +00:00
netnatm Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
netncp Common option '-N' do not require an argument. 2001-01-07 07:03:59 +00:00
netns * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
nfs NFS O_EXCL file create semantics temporarily uses file attributes to store 2001-01-04 22:45:19 +00:00
nfsclient NFS O_EXCL file create semantics temporarily uses file attributes to store 2001-01-04 22:45:19 +00:00
nfsserver * Rename M_WAIT mbuf subsystem flag to M_TRYWAIT. 2000-12-21 21:44:31 +00:00
ntfs Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
nwfs v_interlock is a mutex now, not simple lock. 2000-11-04 02:42:11 +00:00
pc98 Remove NOBLOCKRANDOM as a compile-time option. Instead, provide 2001-01-14 17:50:15 +00:00
pccard Fix a minor bug that prevents NEWBUS users from setting more than 2001-01-09 23:39:32 +00:00
pci moved isp_pci.c from pci to dev/isp 2001-01-09 19:15:12 +00:00
posix4
powerpc Remove unused per-cpu variables inside_intr and ss_eflags. 2001-01-12 07:47:54 +00:00
rpc
svr4 This patchset fixes a large number of file descriptor race conditions. 2000-11-18 21:01:04 +00:00
sys A bit of sanity-checking in bioqdisksort(): panic if we recurse. 2001-01-14 18:48:42 +00:00
tools Simplify this a bit so that it doesn't have to generate silly redundant 2000-12-06 06:59:38 +00:00
ufs The ffs superblock includes a 128-byte region for use by temporary 2001-01-15 18:30:40 +00:00
vm fix comment which was outdated 3 years ago 2000-12-29 13:49:05 +00:00
Makefile I should know better than to touch this without testing a 'make release' 2000-08-24 18:53:09 +00:00