Patch "NFSD: Add an nfsd4_encode_nfstime4() helper" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    NFSD: Add an nfsd4_encode_nfstime4() helper

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     nfsd-add-an-nfsd4_encode_nfstime4-helper.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit c64e15be4c1424636df5a25108b846072809d0d5
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date:   Mon Jun 12 10:13:39 2023 -0400

    NFSD: Add an nfsd4_encode_nfstime4() helper
    
    [ Upstream commit 262176798b18b12fd8ab84c94cfece0a6a652476 ]
    
    Clean up: de-duplicate some common code.
    
    Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
    Acked-by: Tom Talpey <tom@xxxxxxxxxx>
    Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 597f14a80512f..514f4456cf5c6 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2541,6 +2541,20 @@ static __be32 *encode_change(__be32 *p, struct kstat *stat, struct inode *inode,
 	return p;
 }
 
+static __be32 nfsd4_encode_nfstime4(struct xdr_stream *xdr,
+				    struct timespec64 *tv)
+{
+	__be32 *p;
+
+	p = xdr_reserve_space(xdr, XDR_UNIT * 3);
+	if (!p)
+		return nfserr_resource;
+
+	p = xdr_encode_hyper(p, (s64)tv->tv_sec);
+	*p = cpu_to_be32(tv->tv_nsec);
+	return nfs_ok;
+}
+
 /*
  * ctime (in NFSv4, time_metadata) is not writeable, and the client
  * doesn't really care what resolution could theoretically be stored by
@@ -3346,11 +3360,9 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
 		p = xdr_encode_hyper(p, dummy64);
 	}
 	if (bmval1 & FATTR4_WORD1_TIME_ACCESS) {
-		p = xdr_reserve_space(xdr, 12);
-		if (!p)
-			goto out_resource;
-		p = xdr_encode_hyper(p, (s64)stat.atime.tv_sec);
-		*p++ = cpu_to_be32(stat.atime.tv_nsec);
+		status = nfsd4_encode_nfstime4(xdr, &stat.atime);
+		if (status)
+			goto out;
 	}
 	if (bmval1 & FATTR4_WORD1_TIME_DELTA) {
 		p = xdr_reserve_space(xdr, 12);
@@ -3359,25 +3371,19 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
 		p = encode_time_delta(p, d_inode(dentry));
 	}
 	if (bmval1 & FATTR4_WORD1_TIME_METADATA) {
-		p = xdr_reserve_space(xdr, 12);
-		if (!p)
-			goto out_resource;
-		p = xdr_encode_hyper(p, (s64)stat.ctime.tv_sec);
-		*p++ = cpu_to_be32(stat.ctime.tv_nsec);
+		status = nfsd4_encode_nfstime4(xdr, &stat.ctime);
+		if (status)
+			goto out;
 	}
 	if (bmval1 & FATTR4_WORD1_TIME_MODIFY) {
-		p = xdr_reserve_space(xdr, 12);
-		if (!p)
-			goto out_resource;
-		p = xdr_encode_hyper(p, (s64)stat.mtime.tv_sec);
-		*p++ = cpu_to_be32(stat.mtime.tv_nsec);
+		status = nfsd4_encode_nfstime4(xdr, &stat.mtime);
+		if (status)
+			goto out;
 	}
 	if (bmval1 & FATTR4_WORD1_TIME_CREATE) {
-		p = xdr_reserve_space(xdr, 12);
-		if (!p)
-			goto out_resource;
-		p = xdr_encode_hyper(p, (s64)stat.btime.tv_sec);
-		*p++ = cpu_to_be32(stat.btime.tv_nsec);
+		status = nfsd4_encode_nfstime4(xdr, &stat.btime);
+		if (status)
+			goto out;
 	}
 	if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
 		u64 ino = stat.ino;




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