diff options
Diffstat (limited to 'drivers/xen')
-rw-r--r-- | drivers/xen/balloon.c | 4 | ||||
-rw-r--r-- | drivers/xen/gntalloc.c | 4 | ||||
-rw-r--r-- | drivers/xen/gntdev.c | 10 | ||||
-rw-r--r-- | drivers/xen/swiotlb-xen.c | 4 | ||||
-rw-r--r-- | drivers/xen/xen-balloon.c | 86 | ||||
-rw-r--r-- | drivers/xen/xen-selfballoon.c | 76 | ||||
-rw-r--r-- | drivers/xen/xenbus/xenbus_client.c | 11 | ||||
-rw-r--r-- | drivers/xen/xenbus/xenbus_xs.c | 13 |
8 files changed, 100 insertions, 108 deletions
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index a767884a6c7a..31ab82fda38a 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -501,7 +501,7 @@ 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) @@ -511,7 +511,7 @@ int alloc_xenballooned_pages(int nr_pages, struct page **pages, bool highmem) 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; 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 39871326afa2..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 || diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 8e964b91c447..284798aaf8b1 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -166,7 +166,7 @@ retry: /* * Get IO TLB memory from any location. */ - xen_io_tlb_start = alloc_bootmem(bytes); + xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes)); if (!xen_io_tlb_start) { m = "Cannot allocate Xen-SWIOTLB buffer!\n"; goto error; @@ -179,7 +179,7 @@ retry: bytes, xen_io_tlb_nslabs); if (rc) { - free_bootmem(__pa(xen_io_tlb_start), bytes); + free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes)); m = "Failed to get contiguous memory for DMA from Xen!\n"\ "You either: don't have the permissions, do not have"\ " enough free memory under 4GB, or the hypervisor memory"\ diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index 9cc2259c9992..3832e303c33a 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -32,7 +32,6 @@ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/sysdev.h> #include <linux/capability.h> #include <xen/xen.h> @@ -46,9 +45,9 @@ #define BALLOON_CLASS_NAME "xen_memory" -static struct sys_device balloon_sysdev; +static struct device balloon_dev; -static int register_balloon(struct sys_device *sysdev); +static int register_balloon(struct device *dev); /* React to a change in the target key */ static void watch_target(struct xenbus_watch *watch, @@ -98,9 +97,9 @@ static int __init balloon_init(void) pr_info("xen-balloon: Initialising balloon driver.\n"); - register_balloon(&balloon_sysdev); + register_balloon(&balloon_dev); - register_xen_selfballooning(&balloon_sysdev); + register_xen_selfballooning(&balloon_dev); register_xenstore_notifier(&xenstore_notifier); @@ -117,31 +116,31 @@ static void balloon_exit(void) module_exit(balloon_exit); #define BALLOON_SHOW(name, format, args...) \ - static ssize_t show_##name(struct sys_device *dev, \ - struct sysdev_attribute *attr, \ + static ssize_t show_##name(struct device *dev, \ + struct device_attribute *attr, \ char *buf) \ { \ return sprintf(buf, format, ##args); \ } \ - static SYSDEV_ATTR(name, S_IRUGO, show_##name, NULL) + static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) BALLOON_SHOW(current_kb, "%lu\n", PAGES2KB(balloon_stats.current_pages)); BALLOON_SHOW(low_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_low)); BALLOON_SHOW(high_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_high)); -static SYSDEV_ULONG_ATTR(schedule_delay, 0444, balloon_stats.schedule_delay); -static SYSDEV_ULONG_ATTR(max_schedule_delay, 0644, balloon_stats.max_schedule_delay); -static SYSDEV_ULONG_ATTR(retry_count, 0444, balloon_stats.retry_count); -static SYSDEV_ULONG_ATTR(max_retry_count, 0644, balloon_stats.max_retry_count); +static DEVICE_ULONG_ATTR(schedule_delay, 0444, balloon_stats.schedule_delay); +static DEVICE_ULONG_ATTR(max_schedule_delay, 0644, balloon_stats.max_schedule_delay); +static DEVICE_ULONG_ATTR(retry_count, 0444, balloon_stats.retry_count); +static DEVICE_ULONG_ATTR(max_retry_count, 0644, balloon_stats.max_retry_count); -static ssize_t show_target_kb(struct sys_device *dev, struct sysdev_attribute *attr, +static ssize_t show_target_kb(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%lu\n", PAGES2KB(balloon_stats.target_pages)); } -static ssize_t store_target_kb(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_target_kb(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -158,11 +157,11 @@ static ssize_t store_target_kb(struct sys_device *dev, return count; } -static SYSDEV_ATTR(target_kb, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(target_kb, S_IRUGO | S_IWUSR, show_target_kb, store_target_kb); -static ssize_t show_target(struct sys_device *dev, struct sysdev_attribute *attr, +static ssize_t show_target(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%llu\n", @@ -170,8 +169,8 @@ static ssize_t show_target(struct sys_device *dev, struct sysdev_attribute *attr << PAGE_SHIFT); } -static ssize_t store_target(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_target(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -188,23 +187,23 @@ static ssize_t store_target(struct sys_device *dev, return count; } -static SYSDEV_ATTR(target, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(target, S_IRUGO | S_IWUSR, show_target, store_target); -static struct sysdev_attribute *balloon_attrs[] = { - &attr_target_kb, - &attr_target, - &attr_schedule_delay.attr, - &attr_max_schedule_delay.attr, - &attr_retry_count.attr, - &attr_max_retry_count.attr +static struct device_attribute *balloon_attrs[] = { + &dev_attr_target_kb, + &dev_attr_target, + &dev_attr_schedule_delay.attr, + &dev_attr_max_schedule_delay.attr, + &dev_attr_retry_count.attr, + &dev_attr_max_retry_count.attr }; static struct attribute *balloon_info_attrs[] = { - &attr_current_kb.attr, - &attr_low_kb.attr, - &attr_high_kb.attr, + &dev_attr_current_kb.attr, + &dev_attr_low_kb.attr, + &dev_attr_high_kb.attr, NULL }; @@ -213,34 +212,35 @@ static struct attribute_group balloon_info_group = { .attrs = balloon_info_attrs }; -static struct sysdev_class balloon_sysdev_class = { - .name = BALLOON_CLASS_NAME +static struct bus_type balloon_subsys = { + .name = BALLOON_CLASS_NAME, + .dev_name = BALLOON_CLASS_NAME, }; -static int register_balloon(struct sys_device *sysdev) +static int register_balloon(struct device *dev) { int i, error; - error = sysdev_class_register(&balloon_sysdev_class); + error = bus_register(&balloon_subsys); if (error) return error; - sysdev->id = 0; - sysdev->cls = &balloon_sysdev_class; + dev->id = 0; + dev->bus = &balloon_subsys; - error = sysdev_register(sysdev); + error = device_register(dev); if (error) { - sysdev_class_unregister(&balloon_sysdev_class); + bus_unregister(&balloon_subsys); return error; } for (i = 0; i < ARRAY_SIZE(balloon_attrs); i++) { - error = sysdev_create_file(sysdev, balloon_attrs[i]); + error = device_create_file(dev, balloon_attrs[i]); if (error) goto fail; } - error = sysfs_create_group(&sysdev->kobj, &balloon_info_group); + error = sysfs_create_group(&dev->kobj, &balloon_info_group); if (error) goto fail; @@ -248,9 +248,9 @@ static int register_balloon(struct sys_device *sysdev) fail: while (--i >= 0) - sysdev_remove_file(sysdev, balloon_attrs[i]); - sysdev_unregister(sysdev); - sysdev_class_unregister(&balloon_sysdev_class); + device_remove_file(dev, balloon_attrs[i]); + device_unregister(dev); + bus_unregister(&balloon_subsys); return error; } diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c index d93c70857e03..767ff656d5a7 100644 --- a/drivers/xen/xen-selfballoon.c +++ b/drivers/xen/xen-selfballoon.c @@ -74,6 +74,7 @@ #include <linux/mman.h> #include <linux/module.h> #include <linux/workqueue.h> +#include <linux/device.h> #include <xen/balloon.h> #include <xen/tmem.h> #include <xen/xen.h> @@ -266,21 +267,20 @@ static void selfballoon_process(struct work_struct *work) #ifdef CONFIG_SYSFS -#include <linux/sysdev.h> #include <linux/capability.h> #define SELFBALLOON_SHOW(name, format, args...) \ - static ssize_t show_##name(struct sys_device *dev, \ - struct sysdev_attribute *attr, \ - char *buf) \ + static ssize_t show_##name(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ { \ return sprintf(buf, format, ##args); \ } SELFBALLOON_SHOW(selfballooning, "%d\n", xen_selfballooning_enabled); -static ssize_t store_selfballooning(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_selfballooning(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -303,13 +303,13 @@ static ssize_t store_selfballooning(struct sys_device *dev, return count; } -static SYSDEV_ATTR(selfballooning, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(selfballooning, S_IRUGO | S_IWUSR, show_selfballooning, store_selfballooning); SELFBALLOON_SHOW(selfballoon_interval, "%d\n", selfballoon_interval); -static ssize_t store_selfballoon_interval(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_selfballoon_interval(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -325,13 +325,13 @@ static ssize_t store_selfballoon_interval(struct sys_device *dev, return count; } -static SYSDEV_ATTR(selfballoon_interval, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(selfballoon_interval, S_IRUGO | S_IWUSR, show_selfballoon_interval, store_selfballoon_interval); SELFBALLOON_SHOW(selfballoon_downhys, "%d\n", selfballoon_downhysteresis); -static ssize_t store_selfballoon_downhys(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_selfballoon_downhys(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -347,14 +347,14 @@ static ssize_t store_selfballoon_downhys(struct sys_device *dev, return count; } -static SYSDEV_ATTR(selfballoon_downhysteresis, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(selfballoon_downhysteresis, S_IRUGO | S_IWUSR, show_selfballoon_downhys, store_selfballoon_downhys); SELFBALLOON_SHOW(selfballoon_uphys, "%d\n", selfballoon_uphysteresis); -static ssize_t store_selfballoon_uphys(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_selfballoon_uphys(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -370,14 +370,14 @@ static ssize_t store_selfballoon_uphys(struct sys_device *dev, return count; } -static SYSDEV_ATTR(selfballoon_uphysteresis, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(selfballoon_uphysteresis, S_IRUGO | S_IWUSR, show_selfballoon_uphys, store_selfballoon_uphys); SELFBALLOON_SHOW(selfballoon_min_usable_mb, "%d\n", selfballoon_min_usable_mb); -static ssize_t store_selfballoon_min_usable_mb(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_selfballoon_min_usable_mb(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -393,7 +393,7 @@ static ssize_t store_selfballoon_min_usable_mb(struct sys_device *dev, return count; } -static SYSDEV_ATTR(selfballoon_min_usable_mb, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(selfballoon_min_usable_mb, S_IRUGO | S_IWUSR, show_selfballoon_min_usable_mb, store_selfballoon_min_usable_mb); @@ -401,8 +401,8 @@ static SYSDEV_ATTR(selfballoon_min_usable_mb, S_IRUGO | S_IWUSR, #ifdef CONFIG_FRONTSWAP SELFBALLOON_SHOW(frontswap_selfshrinking, "%d\n", frontswap_selfshrinking); -static ssize_t store_frontswap_selfshrinking(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_frontswap_selfshrinking(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -424,13 +424,13 @@ static ssize_t store_frontswap_selfshrinking(struct sys_device *dev, return count; } -static SYSDEV_ATTR(frontswap_selfshrinking, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(frontswap_selfshrinking, S_IRUGO | S_IWUSR, show_frontswap_selfshrinking, store_frontswap_selfshrinking); SELFBALLOON_SHOW(frontswap_inertia, "%d\n", frontswap_inertia); -static ssize_t store_frontswap_inertia(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_frontswap_inertia(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -447,13 +447,13 @@ static ssize_t store_frontswap_inertia(struct sys_device *dev, return count; } -static SYSDEV_ATTR(frontswap_inertia, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(frontswap_inertia, S_IRUGO | S_IWUSR, show_frontswap_inertia, store_frontswap_inertia); SELFBALLOON_SHOW(frontswap_hysteresis, "%d\n", frontswap_hysteresis); -static ssize_t store_frontswap_hysteresis(struct sys_device *dev, - struct sysdev_attribute *attr, +static ssize_t store_frontswap_hysteresis(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) { @@ -469,21 +469,21 @@ static ssize_t store_frontswap_hysteresis(struct sys_device *dev, return count; } -static SYSDEV_ATTR(frontswap_hysteresis, S_IRUGO | S_IWUSR, +static DEVICE_ATTR(frontswap_hysteresis, S_IRUGO | S_IWUSR, show_frontswap_hysteresis, store_frontswap_hysteresis); #endif /* CONFIG_FRONTSWAP */ static struct attribute *selfballoon_attrs[] = { - &attr_selfballooning.attr, - &attr_selfballoon_interval.attr, - &attr_selfballoon_downhysteresis.attr, - &attr_selfballoon_uphysteresis.attr, - &attr_selfballoon_min_usable_mb.attr, + &dev_attr_selfballooning.attr, + &dev_attr_selfballoon_interval.attr, + &dev_attr_selfballoon_downhysteresis.attr, + &dev_attr_selfballoon_uphysteresis.attr, + &dev_attr_selfballoon_min_usable_mb.attr, #ifdef CONFIG_FRONTSWAP - &attr_frontswap_selfshrinking.attr, - &attr_frontswap_hysteresis.attr, - &attr_frontswap_inertia.attr, + &dev_attr_frontswap_selfshrinking.attr, + &dev_attr_frontswap_hysteresis.attr, + &dev_attr_frontswap_inertia.attr, #endif NULL }; @@ -494,12 +494,12 @@ static struct attribute_group selfballoon_group = { }; #endif -int register_xen_selfballooning(struct sys_device *sysdev) +int register_xen_selfballooning(struct device *dev) { int error = -1; #ifdef CONFIG_SYSFS - error = sysfs_create_group(&sysdev->kobj, &selfballoon_group); + error = sysfs_create_group(&dev->kobj, &selfballoon_group); #endif return error; } diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 81c3ce6b8bbe..1906125eab49 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -35,6 +35,7 @@ #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> @@ -436,19 +437,20 @@ 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 = 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(); @@ -527,6 +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. @@ -548,6 +551,8 @@ 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(); diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c index b3b8f2f3ad10..ede860f921df 100644 --- a/drivers/xen/xenbus/xenbus_xs.c +++ b/drivers/xen/xenbus/xenbus_xs.c @@ -621,15 +621,6 @@ static struct xenbus_watch *find_watch(const char *token) return NULL; } -static void xs_reset_watches(void) -{ - int err; - - err = xs_error(xs_single(XBT_NIL, XS_RESET_WATCHES, "", NULL)); - if (err && err != -EEXIST) - printk(KERN_WARNING "xs_reset_watches failed: %d\n", err); -} - /* Register callback to watch this node. */ int register_xenbus_watch(struct xenbus_watch *watch) { @@ -906,9 +897,5 @@ int xs_init(void) if (IS_ERR(task)) return PTR_ERR(task); - /* shutdown watches for kexec boot */ - if (xen_hvm_domain()) - xs_reset_watches(); - return 0; } |