CVS commit: src/sys/ufs/ffs

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

Module Name:    src
Committed By:   hannken
Date:           Wed Apr 27 07:24:53 UTC 2011

Modified Files:
        src/sys/ufs/ffs: ffs_extern.h ffs_vfsops.c ffs_vnops.c

Log Message:
Cleanup ffs fsync and make devices on wapbl enabled file systems work here:

- Replace the ugly sync loop in ffs_full_fsync() and ffs_vfs_fsync() with
  vflushbuf().  This loop is a relic of softdeps and not needed anymore.

- Add ffs_spec_fsync() for device nodes on ffs file systems that calls
  spec_fsync() like all other file systems do and then updates the ctime.

Discussed on tech-kern.

Should fix PRs:
PR #41192 wapbl diagnostic panic during cgdconfig
PR #41977 kernel diagnostic assertion "rw_lock_held(&wl->wl_rwlock)" failed
PR #42149 wapbl locking panic if watching DVD
PR #42551 Lockdebug assert in wapbl when running zpool


To generate a diff of this commit:
cvs rdiff -u -r1.76 -r1.77 src/sys/ufs/ffs/ffs_extern.h
cvs rdiff -u -r1.265 -r1.266 src/sys/ufs/ffs/ffs_vfsops.c
cvs rdiff -u -r1.117 -r1.118 src/sys/ufs/ffs/ffs_vnops.c

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