DragonFly-2.3.1.819.g02023 master sys/kern vfs_bio.c vfs_subr.c
commit 0202303b67456174b88e4b40807faec651bd38ef
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Mon Jul 13 10:55:24 2009 -0700
buffer cache - Control all access to the buf red-black trees with vp->v_token
Access to the buffer cache's RB trees is now controlled via vp->v_token
instead of a critical section. We still hold the BGL but this is not
quite as simple as it seems because an interrupt calling biodone() on a
B_INVAL buffer may now potentially block, where as it would not have before.
The buffer is locked.
Summary of changes:
sys/kern/vfs_bio.c | 8 +++-
sys/kern/vfs_subr.c | 93 +++++++++++++++++++--------------------
sys/kern/vfs_sync.c | 41 ++++++++++-------
sys/sys/vnode.h | 6 +-
sys/vfs/gnu/ext2fs/ext2_vnops.c | 17 ++++---
sys/vfs/hammer/hammer_vnops.c | 12 +++---
sys/vfs/nfs/nfs_subs.c | 30 ++++++++-----
sys/vfs/nfs/nfs_vnops.c | 4 +-
sys/vfs/ufs/ffs_rawread.c | 24 +++++-----
sys/vfs/ufs/ffs_softdep.c | 12 +++++
sys/vfs/ufs/ufs_vnops.c | 12 +++---
11 files changed, 144 insertions(+), 115 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/0202303b67456174b88e4b40807faec651bd38ef
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