iommu/amd: Use trylock to aquire bitmap_lock

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First search for a non-contended aperture with trylock
before spinning.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Joerg Roedel 2015-12-22 13:38:12 +01:00

parent 5f6bed5005

commit 7b5e25b84e

1 changed files with 17 additions and 3 deletions

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drivers/iommu/amd_iommu.c

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