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RDS: break out rdma and data ops into nested structs in rds_message

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Clearly separate rdma-related variables in rm from data-related ones.
This is in anticipation of adding atomic support.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
This commit is contained in:
Andy Grover
2010-01-12 12:15:02 -08:00
parent 8690bfa17a
commit e779137aa7
7 changed files with 96 additions and 85 deletions
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net/rds/message.c
+15 -15
View File
@@ -63,17 +63,17 @@ static void rds_message_purge(struct rds_message *rm)
if (unlikely(test_bit(RDS_MSG_PAGEVEC, &rm->m_flags)))
return;
for (i = 0; i < rm->m_nents; i++) {
rdsdebug("putting data page %p\n", (void *)sg_page(&rm->m_sg[i]));
for (i = 0; i < rm->data.m_nents; i++) {
rdsdebug("putting data page %p\n", (void *)sg_page(&rm->data.m_sg[i]));
/* XXX will have to put_page for page refs */
__free_page(sg_page(&rm->m_sg[i]));
__free_page(sg_page(&rm->data.m_sg[i]));
}
rm->m_nents = 0;
rm->data.m_nents = 0;
if (rm->m_rdma_op)
rds_rdma_free_op(rm->m_rdma_op);
if (rm->m_rdma_mr)
rds_mr_put(rm->m_rdma_mr);
if (rm->rdma.m_rdma_op)
rds_rdma_free_op(rm->rdma.m_rdma_op);
if (rm->rdma.m_rdma_mr)
rds_mr_put(rm->rdma.m_rdma_mr);
}
void rds_message_inc_purge(struct rds_incoming *inc)
@@ -224,7 +224,7 @@ struct rds_message *rds_message_alloc(unsigned int nents, gfp_t gfp)
goto out;
if (nents)
sg_init_table(rm->m_sg, nents);
sg_init_table(rm->data.m_sg, nents);
atomic_set(&rm->m_refcount, 1);
INIT_LIST_HEAD(&rm->m_sock_item);
INIT_LIST_HEAD(&rm->m_conn_item);
@@ -245,10 +245,10 @@ struct rds_message *rds_message_map_pages(unsigned long *page_addrs, unsigned in
set_bit(RDS_MSG_PAGEVEC, &rm->m_flags);
rm->m_inc.i_hdr.h_len = cpu_to_be32(total_len);
rm->m_nents = ceil(total_len, PAGE_SIZE);
rm->data.m_nents = ceil(total_len, PAGE_SIZE);
for (i = 0; i < rm->m_nents; ++i) {
sg_set_page(&rm->m_sg[i],
for (i = 0; i < rm->data.m_nents; ++i) {
sg_set_page(&rm->data.m_sg[i],
virt_to_page(page_addrs[i]),
PAGE_SIZE, 0);
}
@@ -278,7 +278,7 @@ struct rds_message *rds_message_copy_from_user(struct iovec *first_iov,
/*
* now allocate and copy in the data payload.
*/
sg = rm->m_sg;
sg = rm->data.m_sg;
iov = first_iov;
iov_off = 0;
sg_off = 0; /* Dear gcc, sg->page will be null from kzalloc. */
@@ -289,7 +289,7 @@ struct rds_message *rds_message_copy_from_user(struct iovec *first_iov,
GFP_HIGHUSER);
if (ret)
goto out;
rm->m_nents++;
rm->data.m_nents++;
sg_off = 0;
}
@@ -348,7 +348,7 @@ int rds_message_inc_copy_to_user(struct rds_incoming *inc,
iov = first_iov;
iov_off = 0;
sg = rm->m_sg;
sg = rm->data.m_sg;
vec_off = 0;
copied = 0;