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Commit 55b6e774 authored by Ricardo Labiaga's avatar Ricardo Labiaga Committed by Trond Myklebust
Browse files

Ask for time_delta during fsinfo probe 



Used by the client to determine if the server has a granular enough
time stamp.

Signed-off-by: default avatarRicardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 6b96724e

fs/nfs/nfs4proc.c

+1 −1
Original line number Diff line number Diff line
@@ -129,7 +129,7 @@ const u32 nfs4_fsinfo_bitmap[2] = { FATTR4_WORD0_MAXFILESIZE 
			| FATTR4_WORD0_MAXREAD

			| FATTR4_WORD0_MAXWRITE

			| FATTR4_WORD0_LEASE_TIME,

			0

			FATTR4_WORD1_TIME_DELTA

};



const u32 nfs4_fs_locations_bitmap[2] = {

fs/nfs/nfs4xdr.c

+21 −0
Original line number Diff line number Diff line
@@ -3582,6 +3582,24 @@ static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, s 
	return status;

}



static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,

				  struct timespec *time)

{

	int status = 0;



	time->tv_sec = 0;

	time->tv_nsec = 0;

	if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U)))

		return -EIO;

	if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) {

		status = decode_attr_time(xdr, time);

		bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;

	}

	dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,

		(long)time->tv_nsec);

	return status;

}



static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time)

{

	int status = 0;
@@ -3982,6 +4000,9 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 
	if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0)

		goto xdr_error;

	fsinfo->wtpref = fsinfo->wtmax;

	status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta);

	if (status != 0)

		goto xdr_error;



	status = verify_attr_len(xdr, savep, attrlen);

xdr_error: