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[v1,2/6] SUNRPC: Introduce xdr_encode_double()

Message ID 20220516203549.2605575-3-Anna.Schumaker@Netapp.com (mailing list archive)
State New
Headers show
Series NFSD: Improvements for the NFSv4.2 READ_PLUS operation | expand

Commit Message

Schumaker, Anna May 16, 2022, 8:35 p.m. UTC
From: Anna Schumaker <Anna.Schumaker@Netapp.com>

This is similar to xdr_encode_word(), but instead lets us encode a
64-bit wide value into the xdr_buf at the given offset.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
 include/linux/sunrpc/xdr.h | 1 +
 net/sunrpc/xdr.c           | 8 ++++++++
 2 files changed, 9 insertions(+)
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diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 04d47a096f8a..e502fe576813 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -196,6 +196,7 @@  extern int read_bytes_from_xdr_buf(const struct xdr_buf *, unsigned int, void *,
 extern int write_bytes_to_xdr_buf(const struct xdr_buf *, unsigned int, void *, unsigned int);
 extern int xdr_encode_word(const struct xdr_buf *, unsigned int, u32);
+extern int xdr_encode_double(const struct xdr_buf *, unsigned int, u64);
 extern int xdr_decode_word(const struct xdr_buf *, unsigned int, u32 *);
 struct xdr_array2_desc;
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 26559c08f68f..87526bce9e15 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -1856,6 +1856,14 @@  int xdr_encode_word(const struct xdr_buf *buf, unsigned int base, u32 obj)
+int xdr_encode_double(const struct xdr_buf *buf, unsigned int base, u64 obj)
+	__be64 raw = cpu_to_be64(obj);
+	return write_bytes_to_xdr_buf(buf, base, &raw, sizeof(obj));
 /* Returns 0 on success, or else a negative error code. */
 static int xdr_xcode_array2(const struct xdr_buf *buf, unsigned int base,
 			    struct xdr_array2_desc *desc, int encode)