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| author |   Chuck Lever <chuck.lever@oracle.com> | 2022-09-12 17:22:56 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-09-26 14:02:47 -0400 |
| commit | 98124f5bd6c76699d514fbe491dd95265369cc99 (patch) | |
| tree | d019af3d7a38db0948b97ea94a215ca1eee84f35 /net/sunrpc/xdr.c | |
| parent | SUNRPC: Clarify comment that documents svc_max_payload() (diff) | |
| download | linux-dev-98124f5bd6c76699d514fbe491dd95265369cc99.tar.xz linux-dev-98124f5bd6c76699d514fbe491dd95265369cc99.zip | |
NFSD: Refactor common code out of dirlist helpers
The dust has settled a bit and it's become obvious what code is
totally common between nfsd_init_dirlist_pages() and
nfsd3_init_dirlist_pages(). Move that common code to SUNRPC.
The new helper brackets the existing xdr_init_decode_pages() API.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'net/sunrpc/xdr.c')
| -rw-r--r-- | net/sunrpc/xdr.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 482586c23fdd..b7a7e1467a1b 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -947,6 +947,28 @@ void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p, EXPORT_SYMBOL_GPL(xdr_init_encode); /** + * xdr_init_encode_pages - Initialize an xdr_stream for encoding into pages + * @xdr: pointer to xdr_stream struct + * @buf: pointer to XDR buffer into which to encode data + * @pages: list of pages to decode into + * @rqst: pointer to controlling rpc_rqst, for debugging + * + */ +void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, + struct page **pages, struct rpc_rqst *rqst) +{ + xdr_reset_scratch_buffer(xdr); + + xdr->buf = buf; + xdr->page_ptr = pages; + xdr->iov = NULL; + xdr->p = page_address(*pages); + xdr->end = (void *)xdr->p + min_t(u32, buf->buflen, PAGE_SIZE); + xdr->rqst = rqst; +} +EXPORT_SYMBOL_GPL(xdr_init_encode_pages); + +/** * __xdr_commit_encode - Ensure all data is written to buffer * @xdr: pointer to xdr_stream * |