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hannken 8c21bc6224 Add ffs internal snapshots. Written by Marshall Kirk McKusick for FreeBSD. 
- Not enabled by default. Needs kernel option FFS_SNAPSHOT.
- Change parameters of ffs_blkfree.
- Let the copy-on-write functions return an error so spec_strategy
    may fail if the copy-on-write fails.
- Change genfs_*lock*() to use vp->v_vnlock instead of &vp->v_lock.
- Add flag B_METAONLY to VOP_BALLOC to return indirect block buffer.
- Add a function ffs_checkfreefile needed for snapshot creation.
- Add special handling of snapshot files:
    Snapshots may not be opened for writing and the attributes are read-only.
    Use the mtime as the time this snapshot was taken.
    Deny mtime updates for snapshot files.
- Add function transferlockers to transfer any waiting processes from
  one lock to another.
- Add vfsop VFS_SNAPSHOT to take a snapshot and make it accessible through
  a vnode.
- Add snapshot support to ls, fsck_ffs and dump.

Welcome to 2.0F.

Approved by: Jason R. Thorpe <thorpej@netbsd.org>
 		2004-05-25 14:54:55 +00:00
..
Makefile Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more. 2002-11-26 23:30:07 +00:00
uvm.h Back out the changes in 2004-02-10 01:30:49 +00:00
uvm_amap.c add assertions. 2004-05-12 20:09:50 +00:00
uvm_amap.h Initialise (most) pools from a link set instead of explicit calls 2004-04-25 16:42:40 +00:00
uvm_amap_i.h Properly set page references counts at the start of the newly 2002-12-20 18:21:13 +00:00
uvm_anon.c fix a amap_wirerange deadlock problem by re-introducing 2004-05-05 11:54:32 +00:00
uvm_anon.h fix a amap_wirerange deadlock problem by re-introducing 2004-05-05 11:54:32 +00:00
uvm_aobj.c Initialise (most) pools from a link set instead of explicit calls 2004-04-25 16:42:40 +00:00
uvm_aobj.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_bio.c ubc_release: grab uobj's vmobjlock when calling uvm_page_unbusy(). 2004-05-05 11:35:40 +00:00
uvm_ddb.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_device.c Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_device.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_extern.h Since a `vmspace' always includes a `vm_map' we can re-use vm_map's 2004-05-04 21:33:40 +00:00
uvm_fault.c fix a amap_wirerange deadlock problem by re-introducing 2004-05-05 11:54:32 +00:00
uvm_fault.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_fault_i.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_glue.c add assertions. 2004-05-12 20:09:50 +00:00
uvm_glue.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_init.c Initialise (most) pools from a link set instead of explicit calls 2004-04-25 16:42:40 +00:00
uvm_io.c Correct use of MAXBSIZE where MAXPHYS was intended. This is a necessary 2003-04-23 00:55:17 +00:00
uvm_km.c Drop trailing spaces. 2004-03-24 07:47:32 +00:00
uvm_km.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_loan.c - Nuke __P(). 2004-03-24 07:50:48 +00:00
uvm_loan.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_map.c Move variable declaration up before the code. Fixes compile error 2004-05-19 22:02:05 +00:00
uvm_map.h Back out the changes in 2004-02-10 01:30:49 +00:00
uvm_map_i.h Back out the changes in 2004-02-10 01:30:49 +00:00
uvm_meter.c Sysctl descriptions under vm subtree 2004-05-25 04:31:17 +00:00
uvm_mmap.c Add ffs internal snapshots. Written by Marshall Kirk McKusick for FreeBSD. 2004-05-25 14:54:55 +00:00
uvm_object.h mincore: don't treat an aobj as a device mapping. 2003-11-29 19:06:48 +00:00
uvm_page.c uvm_page_unbusy: add assertions and comments about PG_RELEASED anon pages. 2004-05-05 11:58:27 +00:00
uvm_page.h add assertions. 2004-05-12 20:09:50 +00:00
uvm_page_i.h add assertions. 2004-05-12 20:09:50 +00:00
uvm_pager.c fix a amap_wirerange deadlock problem by re-introducing 2004-05-05 11:54:32 +00:00
uvm_pager.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_pager_i.h Reorder things so that with multiple inclusion protection that optional 2002-12-01 22:58:43 +00:00
uvm_param.h Use maxdmap and maxsmap instead of MAXDSIZ and MAXSSIZ. 2004-04-04 18:21:48 +00:00
uvm_pdaemon.c Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_pdaemon.h Nuke __P(). 2004-03-24 07:55:01 +00:00
uvm_pglist.c Drop trailing spaces. 2004-03-24 07:47:32 +00:00
uvm_pglist.h
…
uvm_pmap.h Conditionalize a few more declarations, as they may be defined as macros: 2004-03-27 00:59:55 +00:00
uvm_prot.h Move UCB-licensed code from 4-clause to 3-clause licence. 2003-08-07 16:26:28 +00:00
uvm_stat.c Replace uvm counters with evcnt, initialize them through __link_set (from Matt Thomas), 2004-05-01 19:40:39 +00:00
uvm_stat.h Replace uvm counters with evcnt, initialize them through __link_set (from Matt Thomas), 2004-05-01 19:40:39 +00:00
uvm_swap.c don't accept a negative number of swap devices; it will attempt to malloc 2004-05-14 16:56:09 +00:00
uvm_swap.h Introduce uvm_swapisfull(), which computes the available swap space by 2003-08-11 16:33:30 +00:00
uvm_unix.c add support for non-executable mappings (where the hardware allows this) 2003-08-24 17:52:28 +00:00
uvm_user.c
…
uvm_vnode.c Nuke __P(). 2004-03-24 07:55:01 +00:00