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author | rmacklem <rmacklem@FreeBSD.org> | 2011-08-02 11:28:42 +0000 |
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committer | rmacklem <rmacklem@FreeBSD.org> | 2011-08-02 11:28:42 +0000 |
commit | afa0f6e53c883c2b17ed113f86d0c4bc14584a62 (patch) | |
tree | 3dfc99a733203a34c082a3b8d3b6ad3bd587824b /usr.sbin/faithd | |
parent | 9a3c5b3af4f421934c726d220efd030e2c18fa45 (diff) | |
download | FreeBSD-src-afa0f6e53c883c2b17ed113f86d0c4bc14584a62.zip FreeBSD-src-afa0f6e53c883c2b17ed113f86d0c4bc14584a62.tar.gz |
Fix a LOR in the NFS client which could cause a deadlock.
This was reported to the mailing list freebsd-net@freebsd.org
on July 21, 2011 under the subject "LOR with nfsclient sillyrename".
The LOR occurred when nfs_inactive() called vrele(sp->s_dvp)
while holding the vnode lock on the file in s_dvp. This patch
modifies the client so that it performs the vrele(sp->s_dvp)
as a separate task to avoid the LOR. This fix was discussed
with jhb@ and kib@, who both proposed variations of it.
Tested by: pho, jlott at averesystems.com
Submitted by: jhb (earlier version)
Reviewed by: kib
Approved by: re (kib)
MFC after: 2 weeks
Diffstat (limited to 'usr.sbin/faithd')
0 files changed, 0 insertions, 0 deletions