git: DragonFly_RELEASE_5_6 kernel - Fix rare NFS deadlock
Matthew Dillon
dillon at crater.dragonflybsd.org
Sun Jul 21 19:28:10 PDT 2019
commit 81b54a689bb87734bfe6e99d3b2d1df385864c9f
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Fri Jul 19 21:15:27 2019 -0700
kernel - Fix rare NFS deadlock
* Fix a rare NFS deadlock which can occur on UIO_NOCOPY reads
(memory mapped accesses). VOP_GETATTR cannot be safely called
in this situation without deadlocking against the VM system.
Summary of changes:
sys/vfs/nfs/nfs_bio.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/81b54a689bb87734bfe6e99d3b2d1df385864c9f
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