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[SUNRPC]: svc_{get,put}nl()

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* add svc_getnl():
	Take network-endian value from buffer, convert to host-endian
	and return it.
* add svc_putnl():
	Take host-endian value, convert to network-endian and put it
	into a buffer.
* annotate svc_getu32()/svc_putu32() as dealing with network-endian.
* convert to svc_getnl(), svc_putnl().

[AV: in large part it's a carved-up Alexey's patch]

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan
2006-09-26 22:28:46 -07:00
committed by David S. Miller
parent 13d8eaa06a
commit 7699431301
5 changed files with 84 additions and 67 deletions
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31
include/linux/sunrpc/svc.h
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@@ -78,28 +78,45 @@ struct svc_serv {
*/
#define RPCSVC_MAXPAGES ((RPCSVC_MAXPAYLOAD+PAGE_SIZE-1)/PAGE_SIZE + 2)
static inline u32 svc_getu32(struct kvec *iov)
static inline u32 svc_getnl(struct kvec *iov)
{
u32 val, *vp;
__be32 val, *vp;
vp = iov->iov_base;
val = *vp++;
iov->iov_base = (void*)vp;
iov->iov_len -= sizeof(u32);
iov->iov_len -= sizeof(__be32);
return ntohl(val);
}
static inline void svc_putnl(struct kvec *iov, u32 val)
{
__be32 *vp = iov->iov_base + iov->iov_len;
*vp = htonl(val);
iov->iov_len += sizeof(__be32);
}
static inline __be32 svc_getu32(struct kvec *iov)
{
__be32 val, *vp;
vp = iov->iov_base;
val = *vp++;
iov->iov_base = (void*)vp;
iov->iov_len -= sizeof(__be32);
return val;
}
static inline void svc_ungetu32(struct kvec *iov)
{
u32 *vp = (u32 *)iov->iov_base;
__be32 *vp = (__be32 *)iov->iov_base;
iov->iov_base = (void *)(vp - 1);
iov->iov_len += sizeof(*vp);
}
static inline void svc_putu32(struct kvec *iov, u32 val)
static inline void svc_putu32(struct kvec *iov, __be32 val)
{
u32 *vp = iov->iov_base + iov->iov_len;
__be32 *vp = iov->iov_base + iov->iov_len;
*vp = val;
iov->iov_len += sizeof(u32);
iov->iov_len += sizeof(__be32);
}