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libblock: Use unprotected chain operations

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The transfer chain is accessed by at most one thread at a time.
This commit is contained in:
Sebastian Huber
2012-04-12 10:42:43 +02:00
parent 89a84c0fa3
commit 462ee70f9b
1 changed files with 4 additions and 4 deletions
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cpukit/libblock/src/bdbuf.c
+4 -4
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@@ -2269,7 +2269,7 @@ rtems_bdbuf_swapout_write (rtems_bdbuf_swapout_transfer* transfer)
transfer->write_req->status = RTEMS_RESOURCE_IN_USE;
transfer->write_req->bufnum = 0;
while ((node = rtems_chain_get(&transfer->bds)) != NULL)
while ((node = rtems_chain_get_unprotected(&transfer->bds)) != NULL)
{
rtems_bdbuf_buffer* bd = (rtems_bdbuf_buffer*) node;
bool write = false;
@@ -2291,7 +2291,7 @@ rtems_bdbuf_swapout_write (rtems_bdbuf_swapout_transfer* transfer)
transfer->write_req->bufnum &&
(bd->block != (last_block + bufs_per_bd)))
{
rtems_chain_prepend (&transfer->bds, &bd->link);
rtems_chain_prepend_unprotected (&transfer->bds, &bd->link);
write = true;
}
else
@@ -2438,7 +2438,7 @@ rtems_bdbuf_swapout_modified_processing (const rtems_disk_device **dd_ptr,
if (bd->block > tbd->block)
{
rtems_chain_insert (tnode, node);
rtems_chain_insert_unprotected (tnode, node);
node = NULL;
}
else
@@ -2446,7 +2446,7 @@ rtems_bdbuf_swapout_modified_processing (const rtems_disk_device **dd_ptr,
}
if (node)
rtems_chain_prepend (transfer, node);
rtems_chain_prepend_unprotected (transfer, node);
node = next_node;
}