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NFS: Update xdr_encode_foo() functions that we're keeping 

Clean up.

The new helper functions are kept in order by section of RFC 1094.
Move the two timestamp encoders we're keeping, update their coding
style, and refresh their documenting comments.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2010-12-14 14:54:50 +00:00 committed by Trond Myklebust
parent 2d70f533ea
commit 282ac2a573
1 changed files with 33 additions and 26 deletions
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59
fs/nfs/nfs2xdr.c
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@ -90,32 +90,6 @@ xdr_decode_fhandle(__be32 *p, struct nfs_fh *fhandle)
return p + XDR_QUADLEN(NFS2_FHSIZE);
}
static inline __be32*
xdr_encode_time(__be32 *p, const struct timespec *timep)
{
*p++ = htonl(timep->tv_sec);
/* Convert nanoseconds into microseconds */
*p++ = htonl(timep->tv_nsec ? timep->tv_nsec / 1000 : 0);
return p;
}
static inline __be32*
xdr_encode_current_server_time(__be32 *p, const struct timespec *timep)
{
/*
* Passing the invalid value useconds=1000000 is a
* Sun convention for "set to current server time".
* It's needed to make permissions checks for the
* "touch" program across v2 mounts to Solaris and
* Irix boxes work correctly. See description of
* sattr in section 6.1 of "NFS Illustrated" by
* Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5
*/
*p++ = htonl(timep->tv_sec);
*p++ = htonl(1000000);
return p;
}
static inline __be32*
xdr_decode_time(__be32 *p, struct timespec *timep)
{
@ -178,6 +152,39 @@ static void encode_fhandle(struct xdr_stream *xdr, const struct nfs_fh *fh)
memcpy(p, fh->data, NFS2_FHSIZE);
}
/*
* 2.3.4. timeval
*
* struct timeval {
* unsigned int seconds;
* unsigned int useconds;
* };
*/
static __be32 *xdr_encode_time(__be32 *p, const struct timespec *timep)
{
*p++ = cpu_to_be32(timep->tv_sec);
if (timep->tv_nsec != 0)
*p++ = cpu_to_be32(timep->tv_nsec / NSEC_PER_USEC);
else
*p++ = cpu_to_be32(0);
return p;
}
/*
* Passing the invalid value useconds=1000000 is a Sun convention for
* "set to current server time". It's needed to make permissions checks
* for the "touch" program across v2 mounts to Solaris and Irix servers
* work correctly. See description of sattr in section 6.1 of "NFS
* Illustrated" by Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5.
*/
static __be32 *xdr_encode_current_server_time(__be32 *p,
const struct timespec *timep)
{
*p++ = cpu_to_be32(timep->tv_sec);
*p++ = cpu_to_be32(1000000);
return p;
}
/*
* 2.3.6. sattr
*