diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-15 10:53:23 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-01-15 10:53:23 -0700 |
| commit | 40304618468cae5259f77c15511e4feb7bfb624b (patch) | |
| tree | 19666e52586c98484a3bf8f1b19c28103feb9006 /drivers/pci/pci-sysfs.c | |
| parent | 1255dfbb0c77c7a26fec10a5c101b075c3641965 (diff) | |
| parent | 8a4c5c329de716996eea03d93753ccbb5406072b (diff) | |
Merge branch 'pci/locking' into next
* pci/locking:
PCI: Check parent kobject in pci_destroy_dev()
xen/pcifront: Use global PCI rescan-remove locking
powerpc/eeh: Use global PCI rescan-remove locking
MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
platform / x86: Use global PCI rescan-remove locking
PCI: hotplug: Use global PCI rescan-remove locking
pcmcia: Use global PCI rescan-remove locking
ACPI / hotplug / PCI: Use global PCI rescan-remove locking
ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug
PCI: Add global pci_lock_rescan_remove()
Diffstat (limited to 'drivers/pci/pci-sysfs.c')
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index c91e6c18deb..276ef9c1880 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -297,7 +297,6 @@ msi_bus_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RW(msi_bus); -static DEFINE_MUTEX(pci_remove_rescan_mutex); static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf, size_t count) { @@ -308,10 +307,10 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf, return -EINVAL; if (val) { - mutex_lock(&pci_remove_rescan_mutex); + pci_lock_rescan_remove(); while ((b = pci_find_next_bus(b)) != NULL) pci_rescan_bus(b); - mutex_unlock(&pci_remove_rescan_mutex); + pci_unlock_rescan_remove(); } return count; } @@ -342,9 +341,9 @@ dev_rescan_store(struct device *dev, struct device_attribute *attr, return -EINVAL; if (val) { - mutex_lock(&pci_remove_rescan_mutex); + pci_lock_rescan_remove(); pci_rescan_bus(pdev->bus); - mutex_unlock(&pci_remove_rescan_mutex); + pci_unlock_rescan_remove(); } return count; } @@ -354,11 +353,7 @@ static struct device_attribute dev_rescan_attr = __ATTR(rescan, static void remove_callback(struct device *dev) { - struct pci_dev *pdev = to_pci_dev(dev); - - mutex_lock(&pci_remove_rescan_mutex); - pci_stop_and_remove_bus_device(pdev); - mutex_unlock(&pci_remove_rescan_mutex); + pci_stop_and_remove_bus_device_locked(to_pci_dev(dev)); } static ssize_t @@ -395,12 +390,12 @@ dev_bus_rescan_store(struct device *dev, struct device_attribute *attr, return -EINVAL; if (val) { - mutex_lock(&pci_remove_rescan_mutex); + pci_lock_rescan_remove(); if (!pci_is_root_bus(bus) && list_empty(&bus->devices)) pci_rescan_bus_bridge_resize(bus->self); else pci_rescan_bus(bus); - mutex_unlock(&pci_remove_rescan_mutex); + pci_unlock_rescan_remove(); } return count; } |