/* * Definitions of structures for vfsv0 quota format */ #ifndef _LINUX_QUOTA_TREE_H #define _LINUX_QUOTA_TREE_H #include #include /* * Structure of header of block with quota structures. It is padded to 16 bytes so * there will be space for exactly 21 quota-entries in a block */ struct qt_disk_dqdbheader { __le32 dqdh_next_free; /* Number of next block with free entry */ __le32 dqdh_prev_free; /* Number of previous block with free entry */ __le16 dqdh_entries; /* Number of valid entries in block */ __le16 dqdh_pad1; __le32 dqdh_pad2; }; #define QT_TREEOFF 1 /* Offset of tree in file in blocks */ #endif /* _LINUX_QUOTAIO_TREE_H */ t.png' alt='cgit logo'/> index : net-next.git
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /include/trace/events/target.h
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/trace/events/target.h')