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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-16 14:01:03 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-16 14:01:03 -0500 |
commit | 497a5df7bf6ffd136ae21c49d1a01292930d7ca2 (patch) | |
tree | 774215d43cdc9fbd8660086d1801400163dcbd52 /drivers/xen/xen-balloon.c | |
parent | 714d8e7e27197dd39b2550e762a6a6fcf397a471 (diff) | |
parent | 0b97b03d88b40bfbd7ff0e069186a137d9786d43 (diff) |
Merge tag 'stable/for-linus-4.1-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen features and fixes from David Vrabel:
- use a single source list of hypercalls, generating other tables etc.
at build time.
- add a "Xen PV" APIC driver to support >255 VCPUs in PV guests.
- significant performance improve to guest save/restore/migration.
- scsiback/front save/restore support.
- infrastructure for multi-page xenbus rings.
- misc fixes.
* tag 'stable/for-linus-4.1-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pci: Try harder to get PXM information for Xen
xenbus_client: Extend interface to support multi-page ring
xen-pciback: also support disabling of bus-mastering and memory-write-invalidate
xen: support suspend/resume in pvscsi frontend
xen: scsiback: add LUN of restored domain
xen-scsiback: define a pr_fmt macro with xen-pvscsi
xen/mce: fix up xen_late_init_mcelog() error handling
xen/privcmd: improve performance of MMAPBATCH_V2
xen: unify foreign GFN map/unmap for auto-xlated physmap guests
x86/xen/apic: WARN with details.
x86/xen: Provide a "Xen PV" APIC driver to support >255 VCPUs
xen/pciback: Don't print scary messages when unsupported by hypervisor.
xen: use generated hypercall symbols in arch/x86/xen/xen-head.S
xen: use generated hypervisor symbols in arch/x86/xen/trace.c
xen: synchronize include/xen/interface/xen.h with xen
xen: build infrastructure for generating hypercall depending symbols
xen: balloon: Use static attribute groups for sysfs entries
xen: pcpu: Use static attribute groups for sysfs entry
Diffstat (limited to 'drivers/xen/xen-balloon.c')
-rw-r--r-- | drivers/xen/xen-balloon.c | 45 |
1 files changed, 20 insertions, 25 deletions
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index e555845d61fa..39e7ef8d3957 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -193,13 +193,18 @@ static DEVICE_ATTR(target, S_IRUGO | S_IWUSR, show_target, store_target); -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_attrs[] = { + &dev_attr_target_kb.attr, + &dev_attr_target.attr, + &dev_attr_schedule_delay.attr.attr, + &dev_attr_max_schedule_delay.attr.attr, + &dev_attr_retry_count.attr.attr, + &dev_attr_max_retry_count.attr.attr, + NULL +}; + +static const struct attribute_group balloon_group = { + .attrs = balloon_attrs }; static struct attribute *balloon_info_attrs[] = { @@ -214,6 +219,12 @@ static const struct attribute_group balloon_info_group = { .attrs = balloon_info_attrs }; +static const struct attribute_group *balloon_groups[] = { + &balloon_group, + &balloon_info_group, + NULL +}; + static struct bus_type balloon_subsys = { .name = BALLOON_CLASS_NAME, .dev_name = BALLOON_CLASS_NAME, @@ -221,7 +232,7 @@ static struct bus_type balloon_subsys = { static int register_balloon(struct device *dev) { - int i, error; + int error; error = subsys_system_register(&balloon_subsys, NULL); if (error) @@ -229,6 +240,7 @@ static int register_balloon(struct device *dev) dev->id = 0; dev->bus = &balloon_subsys; + dev->groups = balloon_groups; error = device_register(dev); if (error) { @@ -236,24 +248,7 @@ static int register_balloon(struct device *dev) return error; } - for (i = 0; i < ARRAY_SIZE(balloon_attrs); i++) { - error = device_create_file(dev, balloon_attrs[i]); - if (error) - goto fail; - } - - error = sysfs_create_group(&dev->kobj, &balloon_info_group); - if (error) - goto fail; - return 0; - - fail: - while (--i >= 0) - device_remove_file(dev, balloon_attrs[i]); - device_unregister(dev); - bus_unregister(&balloon_subsys); - return error; } MODULE_LICENSE("GPL"); |