/** * pcl_init - Initialize a parsed chunk list * @pcl: parsed chunk list to initialize *
*/ staticinlinevoid pcl_init(struct svc_rdma_pcl *pcl)
{
INIT_LIST_HEAD(&pcl->cl_chunks);
}
/** * pcl_is_empty - Return true if parsed chunk list is empty * @pcl: parsed chunk list *
*/ staticinlinebool pcl_is_empty(conststruct svc_rdma_pcl *pcl)
{ return list_empty(&pcl->cl_chunks);
}
/** * pcl_first_chunk - Return first chunk in a parsed chunk list * @pcl: parsed chunk list * * Returns the first chunk in the list, or NULL if the list is empty.
*/ staticinlinestruct svc_rdma_chunk *
pcl_first_chunk(conststruct svc_rdma_pcl *pcl)
{ if (pcl_is_empty(pcl)) return NULL; return list_first_entry(&pcl->cl_chunks, struct svc_rdma_chunk,
ch_list);
}
/** * pcl_next_chunk - Return next chunk in a parsed chunk list * @pcl: a parsed chunk list * @chunk: chunk in @pcl * * Returns the next chunk in the list, or NULL if @chunk is already last.
*/ staticinlinestruct svc_rdma_chunk *
pcl_next_chunk(conststruct svc_rdma_pcl *pcl, struct svc_rdma_chunk *chunk)
{ if (list_is_last(&chunk->ch_list, &pcl->cl_chunks)) return NULL; return list_next_entry(chunk, ch_list);
}
/** * pcl_for_each_chunk - Iterate over chunks in a parsed chunk list * @pos: the loop cursor * @pcl: a parsed chunk list
*/ #define pcl_for_each_chunk(pos, pcl) \ for (pos = list_first_entry(&(pcl)->cl_chunks, struct svc_rdma_chunk, ch_list); \
&pos->ch_list != &(pcl)->cl_chunks; \
pos = list_next_entry(pos, ch_list))
/** * pcl_for_each_segment - Iterate over segments in a parsed chunk * @pos: the loop cursor * @chunk: a parsed chunk
*/ #define pcl_for_each_segment(pos, chunk) \ for (pos = &(chunk)->ch_segments[0]; \
pos <= &(chunk)->ch_segments[(chunk)->ch_segcount - 1]; \
pos++)
/** * pcl_chunk_end_offset - Return offset of byte range following @chunk * @chunk: chunk in @pcl * * Returns starting offset of the region just after @chunk
*/ staticinlineunsignedint
pcl_chunk_end_offset(conststruct svc_rdma_chunk *chunk)
{ return xdr_align_size(chunk->ch_position + chunk->ch_payload_length);
}
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