CVS commit: [netbsd-5] src

["Manuel Bouyer" <bouyer%netbsd.org@localhost>]

Module Name:    src
Committed By:   bouyer
Date:           Sat Jun 18 17:00:26 UTC 2011

Modified Files:
        src/sbin/dump [netbsd-5]: snapshot.c
        src/share/man/man4 [netbsd-5]: fss.4
        src/sys/dev [netbsd-5]: fss.c fssvar.h
        src/sys/kern [netbsd-5]: vfs_wapbl.c
        src/sys/ufs/ffs [netbsd-5]: ffs_balloc.c ffs_snapshot.c
        src/usr.sbin/fssconfig [netbsd-5]: fssconfig.c

Log Message:
Pull up following revision(s) (requested by hannken in ticket #1627):
        sys/kern/vfs_wapbl.c: revisions                 1.41-1.42
        sbin/dump/snapshot.c: revisions                 1.6 (patch)
        share/man/man4/fss.4: revisions                 1.15 (patch)
        sys/dev/fss.c: revisions                        1.73 (patch)
        sys/dev/fssvar.h: revisions                     1.25
        usr.sbin/fssconfig/fssconfig.c: revisions       1.7
        sys/ufs/ffs/ffs_balloc.c: revisions             1.54
        sys/ufs/ffs/ffs_snapshot.c: revisions           1.90, 1.98, 
1.100-1.101, 1.103-1.110, 1.111, 1.112-1.115 (patch)

- Try to keep snapshot indirect blocks contiguous.  This speeds up snapshot
  creation by a factor of ~3 and reduces the file system suspension time by
  a factor of ~5.

- Refine the scope of WAPBL transactions and the limit for deallocations in
  one transaction so we should no longer get a "wapbl_flush: current
  transaction too big to flush" panic when creating or removing snapshots
  on larger logging disks.

- fss(4): Allow FSSIOCSET to set the initial flags.  Add a new flag
  "FSS_UNLINK_ON_CREATE" to unlink the backing store before the snapshot
  gets created.  With this change dump(8) no longer dumps the zero-sized,
  but named snapshot it is working on.


To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.4.4.1 src/sbin/dump/snapshot.c
cvs rdiff -u -r1.12 -r1.12.2.1 src/share/man/man4/fss.4
cvs rdiff -u -r1.60.4.3 -r1.60.4.4 src/sys/dev/fss.c
cvs rdiff -u -r1.23 -r1.23.4.1 src/sys/dev/fssvar.h
cvs rdiff -u -r1.3.8.5 -r1.3.8.6 src/sys/kern/vfs_wapbl.c
cvs rdiff -u -r1.51 -r1.51.4.1 src/sys/ufs/ffs/ffs_balloc.c
cvs rdiff -u -r1.82.4.3 -r1.82.4.4 src/sys/ufs/ffs/ffs_snapshot.c
cvs rdiff -u -r1.6 -r1.6.6.1 src/usr.sbin/fssconfig/fssconfig.c

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