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-rw-r--r--drivers/xen/balloon.c18
-rw-r--r--drivers/xen/events.c9
-rw-r--r--drivers/xen/gntalloc.c4
-rw-r--r--drivers/xen/gntdev.c13
-rw-r--r--drivers/xen/grant-table.c2
-rw-r--r--drivers/xen/manage.c1
-rw-r--r--drivers/xen/pci.c2
-rw-r--r--drivers/xen/swiotlb-xen.c1
-rw-r--r--drivers/xen/xen-balloon.c17
-rw-r--r--drivers/xen/xen-pciback/conf_space.c1
-rw-r--r--drivers/xen/xenbus/xenbus_client.c16
-rw-r--r--drivers/xen/xenbus/xenbus_probe.c8
-rw-r--r--drivers/xen/xenbus/xenbus_probe.h3
-rw-r--r--drivers/xen/xenbus/xenbus_probe_backend.c1
-rw-r--r--drivers/xen/xenbus/xenbus_probe_frontend.c1
15 files changed, 52 insertions, 45 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 5876e1ae6c2d..31ab82fda38a 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -39,6 +39,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/errno.h>
+#include <linux/module.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/pagemap.h>
@@ -93,8 +94,8 @@ static unsigned long frame_list[PAGE_SIZE / sizeof(unsigned long)];
#define inc_totalhigh_pages() (totalhigh_pages++)
#define dec_totalhigh_pages() (totalhigh_pages--)
#else
-#define inc_totalhigh_pages() do {} while(0)
-#define dec_totalhigh_pages() do {} while(0)
+#define inc_totalhigh_pages() do {} while (0)
+#define dec_totalhigh_pages() do {} while (0)
#endif
/* List of ballooned pages, threaded through the mem_map array. */
@@ -154,8 +155,7 @@ static struct page *balloon_retrieve(bool prefer_highmem)
if (PageHighMem(page)) {
balloon_stats.balloon_high--;
inc_totalhigh_pages();
- }
- else
+ } else
balloon_stats.balloon_low--;
totalram_pages++;
@@ -422,7 +422,7 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
(unsigned long)__va(pfn << PAGE_SHIFT),
__pte_ma(0), 0);
BUG_ON(ret);
- }
+ }
}
@@ -501,17 +501,17 @@ EXPORT_SYMBOL_GPL(balloon_set_new_target);
* alloc_xenballooned_pages - get pages that have been ballooned out
* @nr_pages: Number of pages to get
* @pages: pages returned
- * @highmem: highmem or lowmem pages
+ * @highmem: allow highmem pages
* @return 0 on success, error otherwise
*/
int alloc_xenballooned_pages(int nr_pages, struct page **pages, bool highmem)
{
int pgno = 0;
- struct page* page;
+ struct page *page;
mutex_lock(&balloon_mutex);
while (pgno < nr_pages) {
page = balloon_retrieve(highmem);
- if (page && PageHighMem(page) == highmem) {
+ if (page && (highmem || !PageHighMem(page))) {
pages[pgno++] = page;
} else {
enum bp_state st;
@@ -540,7 +540,7 @@ EXPORT_SYMBOL(alloc_xenballooned_pages);
* @nr_pages: Number of pages
* @pages: pages to return
*/
-void free_xenballooned_pages(int nr_pages, struct page** pages)
+void free_xenballooned_pages(int nr_pages, struct page **pages)
{
int i;
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 0eb8a57cc808..6e075cdd0c6b 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -85,8 +85,7 @@ enum xen_irq_type {
* IPI - IPI vector
* EVTCHN -
*/
-struct irq_info
-{
+struct irq_info {
struct list_head list;
enum xen_irq_type type; /* type */
unsigned irq;
@@ -282,9 +281,9 @@ static inline unsigned long active_evtchns(unsigned int cpu,
struct shared_info *sh,
unsigned int idx)
{
- return (sh->evtchn_pending[idx] &
+ return sh->evtchn_pending[idx] &
per_cpu(cpu_evtchn_mask, cpu)[idx] &
- ~sh->evtchn_mask[idx]);
+ ~sh->evtchn_mask[idx];
}
static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu)
@@ -1180,7 +1179,7 @@ static void __xen_evtchn_do_upcall(void)
int cpu = get_cpu();
struct shared_info *s = HYPERVISOR_shared_info;
struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu);
- unsigned count;
+ unsigned count;
do {
unsigned long pending_words;
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index f6832f46aea4..e1c4c6e5b469 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -135,7 +135,7 @@ static int add_grefs(struct ioctl_gntalloc_alloc_gref *op,
/* Grant foreign access to the page. */
gref->gref_id = gnttab_grant_foreign_access(op->domid,
pfn_to_mfn(page_to_pfn(gref->page)), readonly);
- if (gref->gref_id < 0) {
+ if ((int)gref->gref_id < 0) {
rc = gref->gref_id;
goto undo;
}
@@ -280,7 +280,7 @@ static long gntalloc_ioctl_alloc(struct gntalloc_file_private_data *priv,
goto out;
}
- gref_ids = kzalloc(sizeof(gref_ids[0]) * op.count, GFP_TEMPORARY);
+ gref_ids = kcalloc(op.count, sizeof(gref_ids[0]), GFP_TEMPORARY);
if (!gref_ids) {
rc = -ENOMEM;
goto out;
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 880798aae2f2..afca14d9042e 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -114,11 +114,11 @@ static struct grant_map *gntdev_alloc_map(struct gntdev_priv *priv, int count)
if (NULL == add)
return NULL;
- add->grants = kzalloc(sizeof(add->grants[0]) * count, GFP_KERNEL);
- add->map_ops = kzalloc(sizeof(add->map_ops[0]) * count, GFP_KERNEL);
- add->unmap_ops = kzalloc(sizeof(add->unmap_ops[0]) * count, GFP_KERNEL);
- add->kmap_ops = kzalloc(sizeof(add->kmap_ops[0]) * count, GFP_KERNEL);
- add->pages = kzalloc(sizeof(add->pages[0]) * count, GFP_KERNEL);
+ add->grants = kcalloc(count, sizeof(add->grants[0]), GFP_KERNEL);
+ add->map_ops = kcalloc(count, sizeof(add->map_ops[0]), GFP_KERNEL);
+ add->unmap_ops = kcalloc(count, sizeof(add->unmap_ops[0]), GFP_KERNEL);
+ add->kmap_ops = kcalloc(count, sizeof(add->kmap_ops[0]), GFP_KERNEL);
+ add->pages = kcalloc(count, sizeof(add->pages[0]), GFP_KERNEL);
if (NULL == add->grants ||
NULL == add->map_ops ||
NULL == add->unmap_ops ||
@@ -193,9 +193,8 @@ static void gntdev_put_map(struct grant_map *map)
atomic_sub(map->count, &pages_mapped);
- if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT) {
+ if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT)
notify_remote_via_evtchn(map->notify.event);
- }
if (map->pages) {
if (!use_ptemod)
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 8c71ab801756..bf1c094f4ebf 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -193,7 +193,7 @@ int gnttab_query_foreign_access(grant_ref_t ref)
nflags = shared[ref].flags;
- return (nflags & (GTF_reading|GTF_writing));
+ return nflags & (GTF_reading|GTF_writing);
}
EXPORT_SYMBOL_GPL(gnttab_query_foreign_access);
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 0b5366b5be20..ce4fa0831860 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -9,6 +9,7 @@
#include <linux/stop_machine.h>
#include <linux/freezer.h>
#include <linux/syscore_ops.h>
+#include <linux/export.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
index 66057075d6e2..b84bf0b6cc34 100644
--- a/drivers/xen/pci.c
+++ b/drivers/xen/pci.c
@@ -116,7 +116,7 @@ static int xen_add_device(struct device *dev)
&manage_pci_ext);
} else {
struct physdev_manage_pci manage_pci = {
- .bus = pci_dev->bus->number,
+ .bus = pci_dev->bus->number,
.devfn = pci_dev->devfn,
};
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index c984768d98ca..8e964b91c447 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -35,6 +35,7 @@
#include <linux/bootmem.h>
#include <linux/dma-mapping.h>
+#include <linux/export.h>
#include <xen/swiotlb-xen.h>
#include <xen/page.h>
#include <xen/xen-ops.h>
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index 5c9dc43c1e94..9cc2259c9992 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c
@@ -50,11 +50,6 @@ static struct sys_device balloon_sysdev;
static int register_balloon(struct sys_device *sysdev);
-static struct xenbus_watch target_watch =
-{
- .node = "memory/target"
-};
-
/* React to a change in the target key */
static void watch_target(struct xenbus_watch *watch,
const char **vec, unsigned int len)
@@ -73,6 +68,11 @@ static void watch_target(struct xenbus_watch *watch,
*/
balloon_set_new_target(new_target >> (PAGE_SHIFT - 10));
}
+static struct xenbus_watch target_watch = {
+ .node = "memory/target",
+ .callback = watch_target,
+};
+
static int balloon_init_watcher(struct notifier_block *notifier,
unsigned long event,
@@ -87,7 +87,9 @@ static int balloon_init_watcher(struct notifier_block *notifier,
return NOTIFY_DONE;
}
-static struct notifier_block xenstore_notifier;
+static struct notifier_block xenstore_notifier = {
+ .notifier_call = balloon_init_watcher,
+};
static int __init balloon_init(void)
{
@@ -100,9 +102,6 @@ static int __init balloon_init(void)
register_xen_selfballooning(&balloon_sysdev);
- target_watch.callback = watch_target;
- xenstore_notifier.notifier_call = balloon_init_watcher;
-
register_xenstore_notifier(&xenstore_notifier);
return 0;
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 444345afbd5c..52fed16d8701 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/pci.h>
#include "pciback.h"
#include "conf_space.h"
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index cdacf923e073..1906125eab49 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -33,7 +33,9 @@
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/vmalloc.h>
+#include <linux/export.h>
#include <asm/xen/hypervisor.h>
+#include <asm/xen/page.h>
#include <xen/interface/xen.h>
#include <xen/interface/event_channel.h>
#include <xen/events.h>
@@ -435,25 +437,26 @@ EXPORT_SYMBOL_GPL(xenbus_free_evtchn);
int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr)
{
struct gnttab_map_grant_ref op = {
- .flags = GNTMAP_host_map,
+ .flags = GNTMAP_host_map | GNTMAP_contains_pte,
.ref = gnt_ref,
.dom = dev->otherend_id,
};
struct vm_struct *area;
+ pte_t *pte;
*vaddr = NULL;
- area = xen_alloc_vm_area(PAGE_SIZE);
+ area = alloc_vm_area(PAGE_SIZE, &pte);
if (!area)
return -ENOMEM;
- op.host_addr = (unsigned long)area->addr;
+ op.host_addr = arbitrary_virt_to_machine(pte).maddr;
if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1))
BUG();
if (op.status != GNTST_okay) {
- xen_free_vm_area(area);
+ free_vm_area(area);
xenbus_dev_fatal(dev, op.status,
"mapping in shared page %d from domain %d",
gnt_ref, dev->otherend_id);
@@ -526,6 +529,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
struct gnttab_unmap_grant_ref op = {
.host_addr = (unsigned long)vaddr,
};
+ unsigned int level;
/* It'd be nice if linux/vmalloc.h provided a find_vm_area(void *addr)
* method so that we don't have to muck with vmalloc internals here.
@@ -547,12 +551,14 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
}
op.handle = (grant_handle_t)area->phys_addr;
+ op.host_addr = arbitrary_virt_to_machine(
+ lookup_address((unsigned long)vaddr, &level)).maddr;
if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1))
BUG();
if (op.status == GNTST_okay)
- xen_free_vm_area(area);
+ free_vm_area(area);
else
xenbus_dev_error(dev, op.status,
"unmapping page at handle %d error %d",
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index cef9b0bf63d5..1b178c6e8937 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -46,6 +46,7 @@
#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <asm/page.h>
#include <asm/pgtable.h>
@@ -309,8 +310,7 @@ void xenbus_unregister_driver(struct xenbus_driver *drv)
}
EXPORT_SYMBOL_GPL(xenbus_unregister_driver);
-struct xb_find_info
-{
+struct xb_find_info {
struct xenbus_device *dev;
const char *nodename;
};
@@ -639,7 +639,7 @@ int xenbus_dev_cancel(struct device *dev)
EXPORT_SYMBOL_GPL(xenbus_dev_cancel);
/* A flag to determine if xenstored is 'ready' (i.e. has started) */
-int xenstored_ready = 0;
+int xenstored_ready;
int register_xenstore_notifier(struct notifier_block *nb)
@@ -770,7 +770,7 @@ static int __init xenbus_init(void)
proc_mkdir("xen", NULL);
#endif
- out_error:
+out_error:
return err;
}
diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h
index b814935378c7..9b1de4e34c64 100644
--- a/drivers/xen/xenbus/xenbus_probe.h
+++ b/drivers/xen/xenbus/xenbus_probe.h
@@ -36,8 +36,7 @@
#define XEN_BUS_ID_SIZE 20
-struct xen_bus_type
-{
+struct xen_bus_type {
char *root;
unsigned int levels;
int (*get_bus_id)(char bus_id[XEN_BUS_ID_SIZE], const char *nodename);
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c
index 32417b5064fd..c3c7cd195c11 100644
--- a/drivers/xen/xenbus/xenbus_probe_backend.c
+++ b/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -42,6 +42,7 @@
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/notifier.h>
+#include <linux/export.h>
#include <asm/page.h>
#include <asm/pgtable.h>
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 540587e18a94..2f73195512b4 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -13,6 +13,7 @@
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/io.h>
+#include <linux/module.h>
#include <asm/page.h>
#include <asm/pgtable.h>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-21 11:25:09 +0100