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...where the foreign keys act as a single compound key that needs to be unique: class CreateRelations < ActiveRecord::Migration def change create_table :relations do |t| t.references :src, :null => false t.references :dst, :null => false end add_index :relations, [:src_id, :dst_id], :unique => true end end One obvious way to enforce uniqueness would be using first_or_create: def self.create_relation(src, dst) where(:src_id => src.id, :dst_id => dst.id).first_or_create! end Which works, but that always does a SELECT before creating the record. Since I...

...e call before a "Sending complete" is released by Alcatel. I'm using libpri 1.2.8 and Asterisk 1.2.31.1. Alcatel trace: > t3 --> Cleaning mtracer... --> Positionning t3 filters... +--------+-------+--------+--------+---------+---------+----------+------+ | filter | desti | src_id | cr_nbr | cpl_nbr | us_term | term_nbr | type | +--------+-------+--------+--------+---------+---------+----------+------+ | 0 | ** | ** | * | ** | * | *** | 165 | | 1 | ** | ** | * | ** | * | *** | 166 | | 2 | ** | **...

...0x9f79580, space = 0x8966770, iter = 0x8045980, nelmts = 3120U, dxpl_cache = 0xfe170078, _tgath_buf = 0x9f5c4f0), line 379 in "H5Dselect.c" [3] H5D_contig_write(io_info = 0x804620c, nelmts = 3120ULL, mem_type = 0x97b05c8, mem_space = 0x8966770, file_space = 0x8966770, tpath = 0x8ee7078, src_id = 201326906, dst_id = 201326904, buf = 0x9f79580), line 1418 in "H5Dio.c" [4] H5D_write(dataset = 0x8f169c0, mem_type_id = 201326906, mem_space = 0x8966770, file_space = 0x8966770, dxpl_id = 671088643, buf = 0x9f79580), line 952 in "H5Dio.c" [5] H5Dwrite(dset_id = 335544330,...

...c_device *mdev, > dev_warn(mdev->sdev->parent, "Error unregistering > callback\n"); > return; > } > - if (pci_dev_msi_enabled(pdev)) { > + if (pci_dev_msi_enabled(pdev, MSI_TYPE | MSIX_TYPE)) { > mdev->irq_info.mic_msi_map[entry] &= ~(BIT(src_id)); > mdev->intr_ops->program_msi_to_src_map(mdev, > entry, src_id, false); > @@ -589,7 +589,7 @@ void mic_free_interrupts(struct mic_device *mdev, struct > pci_dev *pdev) > kfree(mdev->irq_info.msix_entries); > pci_disable_msix(pdev); > } else { > -...

...c_device *mdev, > dev_warn(mdev->sdev->parent, "Error unregistering > callback\n"); > return; > } > - if (pci_dev_msi_enabled(pdev)) { > + if (pci_dev_msi_enabled(pdev, MSI_TYPE | MSIX_TYPE)) { > mdev->irq_info.mic_msi_map[entry] &= ~(BIT(src_id)); > mdev->intr_ops->program_msi_to_src_map(mdev, > entry, src_id, false); > @@ -589,7 +589,7 @@ void mic_free_interrupts(struct mic_device *mdev, struct > pci_dev *pdev) > kfree(mdev->irq_info.msix_entries); > pci_disable_msix(pdev); > } else { > -...

...26,7 @@ void mic_free_irq(struct mic_device *mdev, dev_warn(mdev->sdev->parent, "Error unregistering callback\n"); return; } - if (pci_dev_msi_enabled(pdev)) { + if (pci_dev_msi_enabled(pdev, MSI_TYPE | MSIX_TYPE)) { mdev->irq_info.mic_msi_map[entry] &= ~(BIT(src_id)); mdev->intr_ops->program_msi_to_src_map(mdev, entry, src_id, false); @@ -589,7 +589,7 @@ void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev) kfree(mdev->irq_info.msix_entries); pci_disable_msix(pdev); } else { - if (pci_dev_msi_enabled(pdev)) { + if...

...kie: cookie obtained during a successful call to mic_request_irq + * @data: private data specified by the calling function during the + * mic_request_irq + * + * returns: none. + */ +void mic_free_irq(struct mic_device *mdev, + struct mic_irq *cookie, void *data) +{ + u32 offset; + u32 entry; + u8 src_id; + unsigned int irq; + + if (!mdev) + return; + + WARN_ON(!mutex_is_locked(&mdev->mic_mutex)); + + entry = GET_ENTRY((unsigned long)cookie); + offset = GET_OFFSET((unsigned long)cookie); + if (mdev->irq_info.num_vectors > 1) { + if (entry >= mdev->irq_info.num_vectors) { + de...

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

ChangeLog: ========= v2 => v3: a) Patch 1 data structure cleanups, header file include cleanups, IDA interface reuse and switching to device_create_with_groups(..) as per feedback from Greg Kroah-Hartman. b) Patch 7 signal documentation, sleep workaround removal and sysfs access API cleanups as per feedback from Michael S. Tsirkin. v1 => v2: @ http://lwn.net/Articles/563131/ a)

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after

An Intel MIC X100 device is a PCIe form factor add-in coprocessor card based on the Intel Many Integrated Core (MIC) architecture that runs a Linux OS. It is a PCIe endpoint in a platform and therefore implements the three required standard address spaces i.e. configuration, memory and I/O. The host OS loads a device driver as is typical for PCIe devices. The card itself runs a bootstrap after

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

ChangeLog: ========= v1 => v2: a) License wording cleanup, sysfs ABI documentation, patch 1 refactoring into 3 smaller patches and function renames, as per feedback from Greg Kroah-Hartman. b) Use VRINGH infrastructure for accessing virtio rings from the host in patch 5, as per feedback from Michael S. Tsirkin. v1: Initial post @ https://lkml.org/lkml/2013/7/24/810 Description:

Hi all, The series is a draft of generic MSI driver that supports PCI and Non-PCI device which have MSI capability. If you're not interested it, sorry for the noise. The series is based on Linux-3.16-rc1. MSI was introduced in PCI Spec 2.2. Currently, kernel MSI driver codes are bonding with PCI device. Because MSI has a lot advantages in design. More and more non-PCI devices want to use

Hi all, The series is a draft of generic MSI driver that supports PCI and Non-PCI device which have MSI capability. If you're not interested it, sorry for the noise. The series is based on Linux-3.16-rc1. MSI was introduced in PCI Spec 2.2. Currently, kernel MSI driver codes are bonding with PCI device. Because MSI has a lot advantages in design. More and more non-PCI devices want to use