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| author | rmacklem <rmacklem@FreeBSD.org> | 2009-07-14 23:10:23 +0000 |
|---|---|---|
| committer | rmacklem <rmacklem@FreeBSD.org> | 2009-07-14 23:10:23 +0000 |
| commit | 7d9d8e91f8c954f9b07db4b974d7f1fea56dad8d (patch) | |
| tree | c9768144f78f18757e2de0f1ae62e940e04eabc5 | |
| parent | 50c96d8f042d19384144c442c22ee0e0a7314ca9 (diff) | |
| download | FreeBSD-src-7d9d8e91f8c954f9b07db4b974d7f1fea56dad8d.zip FreeBSD-src-7d9d8e91f8c954f9b07db4b974d7f1fea56dad8d.tar.gz | |
Fix the experimental nfs client so that it does not cause a
"share->excl" panic when doing a lookup of dotdot at the root
of a server's file system. The patch avoids calling vn_lock()
for that case, since nfscl_nget() has already acquired a lock
for the vnode.
Approved by: re (kensmith), kib (mentor)
| -rw-r--r-- | sys/fs/nfsclient/nfs_clvnops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/fs/nfsclient/nfs_clvnops.c b/sys/fs/nfsclient/nfs_clvnops.c index 81b78a0..f75787b 100644 --- a/sys/fs/nfsclient/nfs_clvnops.c +++ b/sys/fs/nfsclient/nfs_clvnops.c @@ -1127,7 +1127,8 @@ nfs_lookup(struct vop_lookup_args *ap) if (error == 0) newvp = NFSTOV(np); vfs_unbusy(mp); - vn_lock(dvp, ltype | LK_RETRY); + if (newvp != dvp) + vn_lock(dvp, ltype | LK_RETRY); if (dvp->v_iflag & VI_DOOMED) { if (error == 0) { if (newvp == dvp) |
