return p + XDR_QUADLEN(obj->len);
}
-u32 *
-xdr_decode_netobj_fixed(u32 *p, void *obj, unsigned int len)
-{
- if (ntohl(*p++) != len)
- return NULL;
- memcpy(obj, p, len);
- return p + XDR_QUADLEN(len);
-}
-
u32 *
xdr_decode_netobj(u32 *p, struct xdr_netobj *obj)
{
xdr->buflen += len;
}
-/*
- * Realign the kvec if the server missed out some reply elements
- * (such as post-op attributes,...)
- * Note: This is a simple implementation that assumes that
- * len <= iov->iov_len !!!
- * The RPC header (assumed to be the 1st element in the iov array)
- * is not shifted.
- */
-void xdr_shift_iovec(struct kvec *iov, int nr, size_t len)
-{
- struct kvec *pvec;
-
- for (pvec = iov + nr - 1; nr > 1; nr--, pvec--) {
- struct kvec *svec = pvec - 1;
-
- if (len > pvec->iov_len) {
- printk(KERN_DEBUG "RPC: Urk! Large shift of short iovec.\n");
- return;
- }
- memmove((char *)pvec->iov_base + len, pvec->iov_base,
- pvec->iov_len - len);
-
- if (len > svec->iov_len) {
- printk(KERN_DEBUG "RPC: Urk! Large shift of short iovec.\n");
- return;
- }
- memcpy(pvec->iov_base,
- (char *)svec->iov_base + svec->iov_len - len, len);
- }
-}
-
-/*
- * Map a struct xdr_buf into an kvec array.
- */
-int xdr_kmap(struct kvec *iov_base, struct xdr_buf *xdr, size_t base)
-{
- struct kvec *iov = iov_base;
- struct page **ppage = xdr->pages;
- unsigned int len, pglen = xdr->page_len;
-
- len = xdr->head[0].iov_len;
- if (base < len) {
- iov->iov_len = len - base;
- iov->iov_base = (char *)xdr->head[0].iov_base + base;
- iov++;
- base = 0;
- } else
- base -= len;
-
- if (pglen == 0)
- goto map_tail;
- if (base >= pglen) {
- base -= pglen;
- goto map_tail;
- }
- if (base || xdr->page_base) {
- pglen -= base;
- base += xdr->page_base;
- ppage += base >> PAGE_CACHE_SHIFT;
- base &= ~PAGE_CACHE_MASK;
- }
- do {
- len = PAGE_CACHE_SIZE;
- iov->iov_base = kmap(*ppage);
- if (base) {
- iov->iov_base += base;
- len -= base;
- base = 0;
- }
- if (pglen < len)
- len = pglen;
- iov->iov_len = len;
- iov++;
- ppage++;
- } while ((pglen -= len) != 0);
-map_tail:
- if (xdr->tail[0].iov_len) {
- iov->iov_len = xdr->tail[0].iov_len - base;
- iov->iov_base = (char *)xdr->tail[0].iov_base + base;
- iov++;
- }
- return (iov - iov_base);
-}
-
-void xdr_kunmap(struct xdr_buf *xdr, size_t base)
-{
- struct page **ppage = xdr->pages;
- unsigned int pglen = xdr->page_len;
-
- if (!pglen)
- return;
- if (base > xdr->head[0].iov_len)
- base -= xdr->head[0].iov_len;
- else
- base = 0;
-
- if (base >= pglen)
- return;
- if (base || xdr->page_base) {
- pglen -= base;
- base += xdr->page_base;
- ppage += base >> PAGE_CACHE_SHIFT;
- /* Note: The offset means that the length of the first
- * page is really (PAGE_CACHE_SIZE - (base & ~PAGE_CACHE_MASK)).
- * In order to avoid an extra test inside the loop,
- * we bump pglen here, and just subtract PAGE_CACHE_SIZE... */
- pglen += base & ~PAGE_CACHE_MASK;
- }
- for (;;) {
- flush_dcache_page(*ppage);
- kunmap(*ppage);
- if (pglen <= PAGE_CACHE_SIZE)
- break;
- pglen -= PAGE_CACHE_SIZE;
- ppage++;
- }
-}
-
void
xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base,
skb_reader_t *desc,
do {
/* Are any pointers crossing a page boundary? */
if (pgto_base == 0) {
+ flush_dcache_page(*pgto);
pgto_base = PAGE_CACHE_SIZE;
pgto--;
}
kunmap_atomic(vto, KM_USER0);
} while ((len -= copy) != 0);
+ flush_dcache_page(*pgto);
}
/*
pgbase += copy;
if (pgbase == PAGE_CACHE_SIZE) {
+ flush_dcache_page(*pgto);
pgbase = 0;
pgto++;
}
p += copy;
} while ((len -= copy) != 0);
+ flush_dcache_page(*pgto);
}
/*
* Copies data into an arbitrary memory location from an array of pages
* The copy is assumed to be non-overlapping.
*/
-void
+static void
_copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
{
struct page **pgfrom;
* 'len' bytes. The extra data is not lost, but is instead
* moved into the inlined pages and/or the tail.
*/
-void
+static void
xdr_shrink_bufhead(struct xdr_buf *buf, size_t len)
{
struct kvec *head, *tail;
* 'len' bytes. The extra data is not lost, but is instead
* moved into the tail.
*/
-void
+static void
xdr_shrink_pagelen(struct xdr_buf *buf, size_t len)
{
struct kvec *tail;
git://git.onelab.eu / linux-2.6.git / blobdiff