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authorLu Baolu <[email protected]>2022-07-12 08:08:56 +0800
committerJoerg Roedel <[email protected]>2022-07-15 10:21:36 +0200
commitffd5869d935303b3e8dedf0d6fbe202ace66c653 (patch)
treeaa19731aecd0391f3425fa113097aef0c6d4113c /lib/mpi/mpi-sub-ui.c
parent2e1c8dafb8c2c459baa5aef5b338c15edd9b9b5b (diff)
iommu/vt-d: Replace spin_lock_irqsave() with spin_lock()
The iommu->lock is used to protect changes in root/context/pasid tables and domain ID allocation. There's no use case to change these resources in any interrupt context. Therefore, it is unnecessary to disable the interrupts when the spinlock is held. The same thing happens on the device_domain_lock side, which protects the device domain attachment information. This replaces spin_lock/unlock_irqsave/irqrestore() calls with the normal spin_lock/unlock(). Signed-off-by: Lu Baolu <[email protected]> Reviewed-by: Kevin Tian <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-sub-ui.c')
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