CVS commit: src/sys/ufs/ffs

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

Module Name:    src
Committed By:   hannken
Date:           Thu Nov 10 10:53:29 UTC 2022

Modified Files:
        src/sys/ufs/ffs: ffs_vfsops.c

Log Message:
Some changes to "fs->fs_fmod" and "fs->fs_clean":
- clear "fs->fs_fmod" after reading the super block.
- assert we don't write a super block when mounted read-only.
- make sure "fs->fs_clean" is one of FS_ISCLEAN or FS_WASCLEAN.
- print "file system not clean" on every mount.

Should fix PR kern/57010: ffs: mounting unclean non-root fs read-only
causes spurious write to superblock


To generate a diff of this commit:
cvs rdiff -u -r1.376 -r1.377 src/sys/ufs/ffs/ffs_vfsops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.