CVS commit: [netbsd-3] src/sys/kern

[Matthias Scheler <tron%netbsd.org@localhost>]

Module Name:    src
Committed By:   tron
Date:           Sat Jun 18 11:13:12 UTC 2005

Modified Files:
        src/sys/kern [netbsd-3]: subr_pool.c

Log Message:
Pull up revision 1.101 (requested by thorpej in ticket #474):
Fix some locking issues:
- Make the locking rules for pr_rmpage() sane, and don't modify fields
protected by the pool lock without actually holding it.
- Always defer freeing the pool page to the back-end allocator, to avoid
invoking the pool_allocator with the pool locked (which would violate
the pool_allocator -> pool locking order).
- Fix pool_reclaim() to not violate the pool_cache -> pool locking order
by using a trylock.
Reviewed by Chuq Silvers.


To generate a diff of this commit:
cvs rdiff -r1.99 -r1.99.8.1 src/sys/kern/subr_pool.c

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