CVS log for src/share/man/man4/fss.4

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Default branch: MAIN
Current tag: netbsd-5-2-RC1

Revision 1.12.2.1 / (download) - annotate - [select for diffs], Sat Jun 18 17:00:25 2011 UTC (12 years, 10 months ago) by bouyer
Branch: netbsd-5
CVS Tags: netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2
Changes since 1.12: +10 -2 lines
Diff to previous 1.12 (colored) next main 1.13 (colored)

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.

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