From 282ac2a573dd1be4230710932cd471ed5a3a94b8 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 14 Dec 2010 14:54:50 +0000 Subject: 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 Tested-by: J. Bruce Fields Signed-off-by: Trond Myklebust --- fs/nfs/nfs2xdr.c | 59 +++++++++++++++++++++++++++++++------------------------- 1 file changed, 33 insertions(+), 26 deletions(-) (limited to 'fs/nfs') diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c index f5ea9dcf08d6..c79977304af8 100644 --- a/fs/nfs/nfs2xdr.c +++ b/fs/nfs/nfs2xdr.c @@ -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 * -- cgit v1.2.3