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| author | Lukasz Odzioba <lukasz.odzioba@intel.com> | 2019-05-20 15:41:28 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-05-27 16:14:49 +0200 |
| commit | f780a8dc196db1c41b5da21ecfa27e83ee5fb776 (patch) | |
| tree | 28ffc920a4d7d6ee7187e1d85a6f5ec356790091 /drivers/iommu/intel-iommu-debugfs.c | |
| parent | iommu/vt-d: Fix bind svm with multiple devices (diff) | |
| download | linux-f780a8dc196db1c41b5da21ecfa27e83ee5fb776.tar.xz linux-f780a8dc196db1c41b5da21ecfa27e83ee5fb776.zip | |
iommu/vt-d: Remove unnecessary rcu_read_locks
We use RCU's for rarely updated lists like iommus, rmrr, atsr units.
I'm not sure why domain_remove_dev_info() in domain_exit() was surrounded
by rcu_read_lock. Lock was present before refactoring in d160aca527,
but it was related to rcu list, not domain_remove_dev_info function.
dmar_remove_one_dev_info() doesn't touch any of those lists, so it doesn't
require a lock. In fact it is called 6 times without it anyway.
Fixes: d160aca5276d ("iommu/vt-d: Unify domain->iommu attach/detachment")
Signed-off-by: Lukasz Odzioba <lukasz.odzioba@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-iommu-debugfs.c')
0 files changed, 0 insertions, 0 deletions