VMCI: Remove dependency on BLOCK I/O

No need to bring in dm-mapper.h and along with it a dependency on BLOCK I/O
just to use dm_div_up().  Just use the existing DIV_ROUND_UP().

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andy King <acking@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c
index 1123111ba1bf6fc61ca90d351d294fcba20e3a46..da47e457e158d27f6251946e10e357824aee7c59 100644 (file)
--- a/drivers/misc/vmw_vmci/vmci_queue_pair.c
+++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c
@@ -13,12 +13,16 @@
  * for more details.
  */
 
-#include <linux/device-mapper.h>
 #include <linux/vmw_vmci_defs.h>
 #include <linux/vmw_vmci_api.h>
+#include <linux/highmem.h>
 #include <linux/kernel.h>
+#include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/pagemap.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
 #include <linux/socket.h>
 #include <linux/wait.h>
 
@@ -246,9 +250,9 @@ static struct qp_list qp_guest_endpoints = {
 };
 
 #define INVALID_VMCI_GUEST_MEM_ID  0
-#define QPE_NUM_PAGES(_QPE) ((u32)                                      \
-                            (dm_div_up(_QPE.produce_size, PAGE_SIZE) +  \
-                             dm_div_up(_QPE.consume_size, PAGE_SIZE) + 2))
+#define QPE_NUM_PAGES(_QPE) ((u32) \
+                            (DIV_ROUND_UP(_QPE.produce_size, PAGE_SIZE) + \
+                             DIV_ROUND_UP(_QPE.consume_size, PAGE_SIZE) + 2))
 
 
 /*
@@ -260,7 +264,7 @@ static void qp_free_queue(void *q, u64 size)
        struct vmci_queue *queue = q;
 
        if (queue) {
-               u64 i = dm_div_up(size, PAGE_SIZE);
+               u64 i = DIV_ROUND_UP(size, PAGE_SIZE);
 
                if (queue->kernel_if->mapped) {
                        vunmap(queue->kernel_if->va);
@@ -289,7 +293,7 @@ static void *qp_alloc_queue(u64 size, u32 flags)
        u64 i;
        struct vmci_queue *queue;
        struct vmci_queue_header *q_header;
-       const u64 num_data_pages = dm_div_up(size, PAGE_SIZE);
+       const u64 num_data_pages = DIV_ROUND_UP(size, PAGE_SIZE);
        const uint queue_size =
            PAGE_SIZE +
            sizeof(*queue) + sizeof(*(queue->kernel_if)) +
@@ -611,7 +615,7 @@ static int qp_memcpy_from_queue_iov(void *dest,
 static struct vmci_queue *qp_host_alloc_queue(u64 size)
 {
        struct vmci_queue *queue;
-       const size_t num_pages = dm_div_up(size, PAGE_SIZE) + 1;
+       const size_t num_pages = DIV_ROUND_UP(size, PAGE_SIZE) + 1;
        const size_t queue_size = sizeof(*queue) + sizeof(*(queue->kernel_if));
        const size_t queue_page_size =
            num_pages * sizeof(*queue->kernel_if->page);
@@ -963,8 +967,8 @@ qp_guest_endpoint_create(struct vmci_handle handle,
        int result;
        struct qp_guest_endpoint *entry;
        /* One page each for the queue headers. */
-       const u64 num_ppns = dm_div_up(produce_size, PAGE_SIZE) +
-           dm_div_up(consume_size, PAGE_SIZE) + 2;
+       const u64 num_ppns = DIV_ROUND_UP(produce_size, PAGE_SIZE) +
+           DIV_ROUND_UP(consume_size, PAGE_SIZE) + 2;
 
        if (vmci_handle_is_invalid(handle)) {
                u32 context_id = vmci_get_context_id();
@@ -1175,9 +1179,9 @@ static int qp_alloc_guest_work(struct vmci_handle *handle,
                               u32 priv_flags)
 {
        const u64 num_produce_pages =
-           dm_div_up(produce_size, PAGE_SIZE) + 1;
+           DIV_ROUND_UP(produce_size, PAGE_SIZE) + 1;
        const u64 num_consume_pages =
-           dm_div_up(consume_size, PAGE_SIZE) + 1;
+           DIV_ROUND_UP(consume_size, PAGE_SIZE) + 1;
        void *my_produce_q = NULL;
        void *my_consume_q = NULL;
        int result;
@@ -1456,7 +1460,7 @@ static int qp_broker_create(struct vmci_handle handle,
                entry->state = VMCIQPB_CREATED_MEM;
                entry->produce_q->q_header = entry->local_mem;
                tmp = (u8 *)entry->local_mem + PAGE_SIZE *
-                   (dm_div_up(entry->qp.produce_size, PAGE_SIZE) + 1);
+                   (DIV_ROUND_UP(entry->qp.produce_size, PAGE_SIZE) + 1);
                entry->consume_q->q_header = (struct vmci_queue_header *)tmp;
        } else if (page_store) {
                /*