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Modify the NFSv4 client create/mkdir RPC so that it acquires

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post-create/mkdir directory attributes. This allows the RPC to
name cache the newly created directory and reduces the lookup RPC
count for applications creating a lot of directories.

MFC after:	2 weeks
This commit is contained in:
Rick Macklem 2014-04-20 22:19:00 +00:00
parent eb67ee5fc6
commit c3e4a7261c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=264705
2 changed files with 17 additions and 1 deletions
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2
sys/fs/nfsclient/nfs_clcomsubs.c
View File

@ -67,7 +67,7 @@ static struct {
{ NFSV4OP_READ, 1, "Read", 4, },
{ NFSV4OP_WRITE, 2, "Write", 5, },
{ NFSV4OP_OPEN, 5, "Open", 4, },
{ NFSV4OP_CREATE, 3, "Create", 6, },
{ NFSV4OP_CREATE, 5, "Create", 6, },
{ NFSV4OP_CREATE, 1, "Create", 6, },
{ NFSV4OP_CREATE, 3, "Create", 6, },
{ NFSV4OP_REMOVE, 1, "Remove", 6, },

16
sys/fs/nfsclient/nfs_clrpcops.c
View File

@ -2545,10 +2545,12 @@ nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap,
struct nfsrv_descript nfsd, *nd = &nfsd;
nfsattrbit_t attrbits;
int error = 0;
struct nfsfh *fhp;
*nfhpp = NULL;
*attrflagp = 0;
*dattrflagp = 0;
fhp = VTONFS(dvp)->n_fhp;
if (namelen > NFS_MAXNAMLEN)
return (ENAMETOOLONG);
NFSCL_REQSTART(nd, NFSPROC_MKDIR, dvp);
@ -2564,6 +2566,12 @@ nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap,
*tl++ = txdr_unsigned(NFSV4OP_GETFH);
*tl = txdr_unsigned(NFSV4OP_GETATTR);
(void) nfsrv_putattrbit(nd, &attrbits);
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl = txdr_unsigned(NFSV4OP_PUTFH);
(void) nfsm_fhtom(nd, fhp->nfh_fh, fhp->nfh_len, 0);
NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED);
*tl = txdr_unsigned(NFSV4OP_GETATTR);
(void) nfsrv_putattrbit(nd, &attrbits);
}
error = nfscl_request(nd, dvp, p, cred, dstuff);
if (error)
@ -2577,6 +2585,14 @@ nfsrpc_mkdir(vnode_t dvp, char *name, int namelen, struct vattr *vap,
}
if (!error)
error = nfscl_mtofh(nd, nfhpp, nnap, attrflagp);
if (!error) {
/* Get rid of the PutFH and Getattr status values. */
NFSM_DISSECT(tl, u_int32_t *, 4 * NFSX_UNSIGNED);
/* Load the directory attributes. */
error = nfsm_loadattr(nd, dnap);
if (error == 0)
*dattrflagp = 1;
}
}
if ((nd->nd_flag & ND_NFSV3) && !error)
error = nfscl_wcc_data(nd, dvp, dnap, dattrflagp, NULL, dstuff);