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https://github.com/joel16/android_kernel_sony_msm8994.git
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SUNRPC: mark bulk read/write data in xdrbuf
Adds a flag word to the xdrbuf struct which indicates any bulk disposition of the data. This enables RPC transport providers to marshal it efficiently/appropriately, and may enable other optimizations. Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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20c71f5e0f
commit
4f22ccc346
@ -251,6 +251,7 @@ nfs_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
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replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS_readres_sz) << 2;
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xdr_inline_pages(&req->rq_rcv_buf, replen,
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args->pages, args->pgbase, count);
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req->rq_rcv_buf.flags |= XDRBUF_READ;
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return 0;
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}
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@ -313,6 +314,7 @@ nfs_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
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/* Copy the page array */
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xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
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sndbuf->flags |= XDRBUF_WRITE;
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return 0;
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}
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@ -346,6 +346,7 @@ nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
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replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS3_readres_sz) << 2;
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xdr_inline_pages(&req->rq_rcv_buf, replen,
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args->pages, args->pgbase, count);
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req->rq_rcv_buf.flags |= XDRBUF_READ;
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return 0;
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}
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@ -367,6 +368,7 @@ nfs3_xdr_writeargs(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args)
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/* Copy the page array */
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xdr_encode_pages(sndbuf, args->pages, args->pgbase, count);
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sndbuf->flags |= XDRBUF_WRITE;
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return 0;
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}
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@ -1856,6 +1856,7 @@ static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readarg
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replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
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xdr_inline_pages(&req->rq_rcv_buf, replen,
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args->pages, args->pgbase, args->count);
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req->rq_rcv_buf.flags |= XDRBUF_READ;
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out:
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return status;
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}
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@ -1932,6 +1933,7 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writea
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status = encode_write(&xdr, args);
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if (status)
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goto out;
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req->rq_snd_buf.flags |= XDRBUF_WRITE;
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status = encode_getfattr(&xdr, args->bitmask);
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out:
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return status;
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@ -70,7 +70,10 @@ struct xdr_buf {
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struct page ** pages; /* Array of contiguous pages */
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unsigned int page_base, /* Start of page data */
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page_len; /* Length of page data */
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page_len, /* Length of page data */
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flags; /* Flags for data disposition */
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#define XDRBUF_READ 0x01 /* target of file read */
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#define XDRBUF_WRITE 0x02 /* source of file write */
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unsigned int buflen, /* Total length of storage buffer */
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len; /* Length of XDR encoded message */
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@ -874,6 +874,7 @@ rpc_xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
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buf->head[0].iov_len = len;
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buf->tail[0].iov_len = 0;
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buf->page_len = 0;
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buf->flags = 0;
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buf->len = 0;
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buf->buflen = len;
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}
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