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xen/xenbus: Rename *RING_PAGE* to *RING_GRANT*

Browse source 
Linux may use a different page size than the size of grant. So make
clear that the order is actually in number of grant.

Signed-off-by: Julien Grall <[email protected]>
Signed-off-by: David Vrabel <[email protected]>
This commit is contained in:
Julien Grall 2015-10-13 17:50:11 +01:00 • committed by David Vrabel
commit 9cce2914e2
5 changed files with 29 additions and 29 deletions
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34
drivers/xen/xenbus/xenbus_client.c
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@ -56,11 +56,11 @@ struct xenbus_map_node {
struct vm_struct *area;
} pv;
struct {
struct page *pages[XENBUS_MAX_RING_PAGES];
struct page *pages[XENBUS_MAX_RING_GRANTS];
void *addr;
} hvm;
};
grant_handle_t handles[XENBUS_MAX_RING_PAGES];
grant_handle_t handles[XENBUS_MAX_RING_GRANTS];
unsigned int nr_handles;
};
@ -479,12 +479,12 @@ static int __xenbus_map_ring(struct xenbus_device *dev,
unsigned int flags,
bool *leaked)
{
struct gnttab_map_grant_ref map[XENBUS_MAX_RING_PAGES];
struct gnttab_unmap_grant_ref unmap[XENBUS_MAX_RING_PAGES];
struct gnttab_map_grant_ref map[XENBUS_MAX_RING_GRANTS];
struct gnttab_unmap_grant_ref unmap[XENBUS_MAX_RING_GRANTS];
int i, j;
int err = GNTST_okay;
if (nr_grefs > XENBUS_MAX_RING_PAGES)
if (nr_grefs > XENBUS_MAX_RING_GRANTS)
return -EINVAL;
for (i = 0; i < nr_grefs; i++) {
@ -540,15 +540,15 @@ static int xenbus_map_ring_valloc_pv(struct xenbus_device *dev,
{
struct xenbus_map_node *node;
struct vm_struct *area;
pte_t *ptes[XENBUS_MAX_RING_PAGES];
phys_addr_t phys_addrs[XENBUS_MAX_RING_PAGES];
pte_t *ptes[XENBUS_MAX_RING_GRANTS];
phys_addr_t phys_addrs[XENBUS_MAX_RING_GRANTS];
int err = GNTST_okay;
int i;
bool leaked;
*vaddr = NULL;
if (nr_grefs > XENBUS_MAX_RING_PAGES)
if (nr_grefs > XENBUS_MAX_RING_GRANTS)
return -EINVAL;
node = kzalloc(sizeof(*node), GFP_KERNEL);
@ -602,10 +602,10 @@ static int xenbus_map_ring_valloc_hvm(struct xenbus_device *dev,
void *addr;
bool leaked = false;
/* Why do we need two arrays? See comment of __xenbus_map_ring */
phys_addr_t phys_addrs[XENBUS_MAX_RING_PAGES];
unsigned long addrs[XENBUS_MAX_RING_PAGES];
phys_addr_t phys_addrs[XENBUS_MAX_RING_GRANTS];
unsigned long addrs[XENBUS_MAX_RING_GRANTS];
if (nr_grefs > XENBUS_MAX_RING_PAGES)
if (nr_grefs > XENBUS_MAX_RING_GRANTS)
return -EINVAL;
*vaddr = NULL;
@ -686,10 +686,10 @@ int xenbus_map_ring(struct xenbus_device *dev, grant_ref_t *gnt_refs,
unsigned int nr_grefs, grant_handle_t *handles,
unsigned long *vaddrs, bool *leaked)
{
phys_addr_t phys_addrs[XENBUS_MAX_RING_PAGES];
phys_addr_t phys_addrs[XENBUS_MAX_RING_GRANTS];
int i;
if (nr_grefs > XENBUS_MAX_RING_PAGES)
if (nr_grefs > XENBUS_MAX_RING_GRANTS)
return -EINVAL;
for (i = 0; i < nr_grefs; i++)
@ -722,7 +722,7 @@ EXPORT_SYMBOL_GPL(xenbus_unmap_ring_vfree);
static int xenbus_unmap_ring_vfree_pv(struct xenbus_device *dev, void *vaddr)
{
struct xenbus_map_node *node;
struct gnttab_unmap_grant_ref unmap[XENBUS_MAX_RING_PAGES];
struct gnttab_unmap_grant_ref unmap[XENBUS_MAX_RING_GRANTS];
unsigned int level;
int i;
bool leaked = false;
@ -787,7 +787,7 @@ static int xenbus_unmap_ring_vfree_hvm(struct xenbus_device *dev, void *vaddr)
int rv;
struct xenbus_map_node *node;
void *addr;
unsigned long addrs[XENBUS_MAX_RING_PAGES];
unsigned long addrs[XENBUS_MAX_RING_GRANTS];
int i;
spin_lock(&xenbus_valloc_lock);
@ -840,11 +840,11 @@ int xenbus_unmap_ring(struct xenbus_device *dev,
grant_handle_t *handles, unsigned int nr_handles,
unsigned long *vaddrs)
{
struct gnttab_unmap_grant_ref unmap[XENBUS_MAX_RING_PAGES];
struct gnttab_unmap_grant_ref unmap[XENBUS_MAX_RING_GRANTS];
int i;
int err;
if (nr_handles > XENBUS_MAX_RING_PAGES)
if (nr_handles > XENBUS_MAX_RING_GRANTS)
return -EINVAL;
for (i = 0; i < nr_handles; i++)