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Modify the NFSv4 client's Pathconf RPC (actually a Getattr Op.)

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so that it only does the RPC for names that are answered by the RPC.
Doing the RPC for other names is harmless, but unnecessary.

MFC after:	2 weeks
This commit is contained in:
Rick Macklem 2014-04-23 22:13:10 +00:00
parent a88393ce0b
commit c0990edac6
1 changed files with 5 additions and 2 deletions
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7
sys/fs/nfsclient/nfs_clvnops.c
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@ -3429,12 +3429,15 @@ nfs_pathconf(struct vop_pathconf_args *ap)
struct thread *td = curthread;
int attrflag, error;
if (NFS_ISV4(vp) || (NFS_ISV3(vp) && (ap->a_name == _PC_LINK_MAX ||
if ((NFS_ISV34(vp) && (ap->a_name == _PC_LINK_MAX ||
ap->a_name == _PC_NAME_MAX || ap->a_name == _PC_CHOWN_RESTRICTED ||
ap->a_name == _PC_NO_TRUNC))) {
ap->a_name == _PC_NO_TRUNC)) ||
(NFS_ISV4(vp) && ap->a_name == _PC_ACL_NFS4)) {
/*
* Since only the above 4 a_names are returned by the NFSv3
* Pathconf RPC, there is no point in doing it for others.
* For NFSv4, the Pathconf RPC (actually a Getattr Op.) can
* be used for _PC_NFS4_ACL as well.
*/
error = nfsrpc_pathconf(vp, &pc, td->td_ucred, td, &nfsva,
&attrflag, NULL);