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NFSv2: Clean up timespec encode

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Simplify the struct iattr timestamp encoding by skipping the step of
an intermediate struct timespec.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2019-10-04 16:57:45 -04:00
parent ad97a995d8
commit c9dbfd961b
1 changed files with 7 additions and 12 deletions
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19
fs/nfs/nfs2xdr.c
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@ -209,9 +209,9 @@ static int decode_fhandle(struct xdr_stream *xdr, struct nfs_fh *fh)
* unsigned int useconds; * unsigned int useconds;
* }; * };
*/ */
static __be32 *xdr_encode_time(__be32 *p, const struct timespec *timep) static __be32 *xdr_encode_time(__be32 *p, const struct timespec64 *timep)
{ {
*p++ = cpu_to_be32(timep->tv_sec); *p++ = cpu_to_be32((u32)timep->tv_sec);
if (timep->tv_nsec != 0) if (timep->tv_nsec != 0)
*p++ = cpu_to_be32(timep->tv_nsec / NSEC_PER_USEC); *p++ = cpu_to_be32(timep->tv_nsec / NSEC_PER_USEC);
else else
@ -227,7 +227,7 @@ static __be32 *xdr_encode_time(__be32 *p, const struct timespec *timep)
* Illustrated" by Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5. * Illustrated" by Brent Callaghan, Addison-Wesley, ISBN 0-201-32750-5.
*/ */
static __be32 *xdr_encode_current_server_time(__be32 *p, static __be32 *xdr_encode_current_server_time(__be32 *p,
const struct timespec *timep) const struct timespec64 *timep)
{ {
*p++ = cpu_to_be32(timep->tv_sec); *p++ = cpu_to_be32(timep->tv_sec);
*p++ = cpu_to_be32(1000000); *p++ = cpu_to_be32(1000000);
@ -339,7 +339,6 @@ static __be32 *xdr_time_not_set(__be32 *p)
static void encode_sattr(struct xdr_stream *xdr, const struct iattr *attr, static void encode_sattr(struct xdr_stream *xdr, const struct iattr *attr,
struct user_namespace *userns) struct user_namespace *userns)
{ {
struct timespec ts;
__be32 *p; __be32 *p;
p = xdr_reserve_space(xdr, NFS_sattr_sz << 2); p = xdr_reserve_space(xdr, NFS_sattr_sz << 2);
@ -362,19 +361,15 @@ static void encode_sattr(struct xdr_stream *xdr, const struct iattr *attr,
*p++ = cpu_to_be32(NFS2_SATTR_NOT_SET); *p++ = cpu_to_be32(NFS2_SATTR_NOT_SET);
if (attr->ia_valid & ATTR_ATIME_SET) { if (attr->ia_valid & ATTR_ATIME_SET) {
ts = timespec64_to_timespec(attr->ia_atime); p = xdr_encode_time(p, &attr->ia_atime);
p = xdr_encode_time(p, &ts);
} else if (attr->ia_valid & ATTR_ATIME) { } else if (attr->ia_valid & ATTR_ATIME) {
ts = timespec64_to_timespec(attr->ia_atime); p = xdr_encode_current_server_time(p, &attr->ia_atime);
p = xdr_encode_current_server_time(p, &ts);
} else } else
p = xdr_time_not_set(p); p = xdr_time_not_set(p);
if (attr->ia_valid & ATTR_MTIME_SET) { if (attr->ia_valid & ATTR_MTIME_SET) {
ts = timespec64_to_timespec(attr->ia_mtime); xdr_encode_time(p, &attr->ia_mtime);
xdr_encode_time(p, &ts);
} else if (attr->ia_valid & ATTR_MTIME) { } else if (attr->ia_valid & ATTR_MTIME) {
ts = timespec64_to_timespec(attr->ia_mtime); xdr_encode_current_server_time(p, &attr->ia_mtime);
xdr_encode_current_server_time(p, &ts);
} else } else
xdr_time_not_set(p); xdr_time_not_set(p);
} }