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Patch the regular nfs client in a manner analagous to

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r195704 for the experimental client. The patch avoids calling vn_lock()
for the case where nfs_nget() has acquired the same vnode as dvp,
since nfs_nget() has already locked the vnode.

Reviewed by:	kib, jhb
Approved by:	re (kensmith), kib (mentor)
This commit is contained in:
Rick Macklem 2009-07-17 19:38:07 +00:00
parent 69ca61ba5e
commit 874bb76647
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=195744
1 changed files with 2 additions and 1 deletions
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3
sys/nfsclient/nfs_vnops.c
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@ -1061,7 +1061,8 @@ 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)