tree 1e2961b51886bb7d58a4533eb4d5bbfa28e8d84d
parent bfa826f82f1383593e18ad180eb816221627a917
author Joerg Roedel <joerg.roedel@amd.com> 1314965990 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1317667220 -0700

iommu/amd: Don't take domain->lock recursivly

commit e33acde91140f1809952d1c135c36feb66a51887 upstream.

The domain_flush_devices() function takes the domain->lock.
But this function is only called from update_domain() which
itself is already called unter the domain->lock. This causes
a deadlock situation when the dma-address-space of a domain
grows larger than 1GB.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>