K 10
svn:author
V 7
glebius
K 8
svn:date
V 27
2005-11-25T14:23:27.000000Z
K 7
svn:log
V 1271
Sync with HEAD, merging the following:

revision 1.117
date: 2005/11/02 15:23:47;  author: glebius;  state: Exp;  lines: +47 -8
Fix two races which happen when netgraph is restructuring:
  - Introduce ng_topo_mtx, a mutex to protect topology changes.
  - In ng_destroy_node() protect with ng_topo_mtx the process
    of checking and pointing at ng_deadnode. [1]
  - In ng_con_part2() check that our peer is not a ng_deadnode,
    and protect the check with ng_topo_mtx.
  - Add KASSERTs to ng_acquire_read/write, to make more
    understandible synopsis in case if called on ng_deadnode.

Reported by:    Roselyn Lee [1]
----------------------------
revision 1.116
date: 2005/11/02 14:27:24;  author: glebius;  state: Exp;  lines: +106 -121
Rework the ng_item queueing on nodes:
  - Introduce a new flags NGQF_QREADER and NGQF_QWRITER,
    which tell how the item should be actually applied,
    overriding NGQF_READER/NGQF_WRITER flags.
  - Do not differ between pending reader or writer. Use only
    one flag that is raised, when there are pending items.
  - Schedule netgraph ISR in ng_queue_rw(), so that callers
    do not need to do this job.
  - Fix several comments.

Submitted by:   julian

As well as some lesser changes: ng_base.c 1.114, 1.113, 1.107, 1.118.

END