From: NeilBrown <neilb@cse.unsw.edu.au>
Date: Fri, 24 Jun 2005 05:02:56 +0000 (-0700)
Subject: [PATCH] nfsd4: support CLAIM_DELEGATE_CUR
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0dd3c19212961453817f219cd6200981c38564bc;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] nfsd4: support CLAIM_DELEGATE_CUR

Add OPEN claim type NFS4_OPEN_CLAIM_DELEGATE_CUR to nfsd4_open().

A delegation stateid and a name are provided.  OPEN with O_CREAT is not legal
with this claim type; otherwise, use the NFS4_OPEN_CLAIM_NULL code path to
lookup the filename to be opened.

Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e8158741e8b5..eb8c1337d9ba 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -198,6 +198,11 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
 	if (status)
 		goto out;
 	switch (open->op_claim_type) {
+		case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+			status = nfserr_inval;
+			if (open->op_create)
+				goto out;
+			/* fall through */
 		case NFS4_OPEN_CLAIM_NULL:
 			/*
 			 * (1) set CURRENT_FH to the file being opened,
@@ -220,7 +225,6 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
 			if (status)
 				goto out;
 			break;
-		case NFS4_OPEN_CLAIM_DELEGATE_CUR:
              	case NFS4_OPEN_CLAIM_DELEGATE_PREV:
 			printk("NFSD: unsupported OPEN claim type %d\n",
 				open->op_claim_type);