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mirror of https://git.FreeBSD.org/src.git synced 2024-12-20 11:11:24 +00:00
freebsd/sys/fs
Bruce Evans 8d61a735c6 Silently fix up the estimated next free cluster number from the fsinfo
sector, instead of failing the whole mount if it is garbage.  Fields
in the fsinfo sector are only advisory, so there are better sanity
checks than this, and we already silently fix up the only other advisory
field in the fsinfo (the free cluster count).

This wasn't handled quite right in rev.1.92, 1.117, or in NetBSD.  1.92
also failed the whole mount for the non-garbage magic value 0xffffffff
1.117 fixed this well enough in practice since garbage values shouldn't
occur in practice, but left the error handling larger and more convoluted
than necessary.  Now we handle the magic value as a special case of
fixing up all out of bounds values.

Also fix up the estimated next free cluster number when there is no
fsinfo sector.  We were using 0, but CLUST_FIRST is safer.

Approved by:	re (kensmith)
2007-08-05 12:58:34 +00:00
..
cd9660 Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
coda Make sure we release the control vnode in Coda: 2007-07-20 11:14:51 +00:00
deadfs Below is slightly edited description of the LOR by Tor Egge: 2007-01-22 11:25:22 +00:00
devfs When we do open, we should lock the vnode exclusively. This fixes few races: 2007-07-26 16:58:09 +00:00
fdescfs Replace custom file descriptor array sleep lock constructed using a mutex 2007-04-04 09:11:34 +00:00
fifofs When we do open, we should lock the vnode exclusively. This fixes few races: 2007-07-26 16:58:09 +00:00
hpfs Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
msdosfs Silently fix up the estimated next free cluster number from the fsinfo 2007-08-05 12:58:34 +00:00
ntfs Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
nullfs Where I previously removed calls to kdb_enter(), now remove include of 2007-05-29 11:28:28 +00:00
nwfs Change the VOP_OPEN(), vn_open() vnode operation and d_fdopen() cdev operation 2007-06-01 14:33:11 +00:00
portalfs Make insmntque() externally visibile and allow it to fail (e.g. during 2007-03-13 01:50:27 +00:00
procfs Eliminate now-unused SUSER_ALLOWJAIL arguments to priv_check_cred(); in 2007-06-12 00:12:01 +00:00
pseudofs Fix off-by-one error (introduced in r1.60) that had the effect of 2007-06-07 15:04:30 +00:00
smbfs Do proper "locking" for missing vmmeters part. 2007-06-04 21:45:18 +00:00
tmpfs MFp4 - Refine locking to eliminate some potential race/panics: 2007-08-03 06:24:31 +00:00
udf Correct corrupt read when the read starts at a non-aligned offset. 2007-06-11 20:14:44 +00:00
unionfs Revert UF_OPENING workaround for CURRENT. 2007-05-31 11:51:53 +00:00