projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 9587f44) | patch
vfio: Use down_reads to protect iommu disconnects
authorAlex Williamson <alex.williamson@redhat.com>
Mon, 29 Apr 2013 14:41:36 +0000 (08:41 -0600)
committerAlex Williamson <alex.williamson@redhat.com>
Mon, 29 Apr 2013 14:41:36 +0000 (08:41 -0600)
commit0b43c082338b857c27d2f87c886eb78812ccd236
tree4692c09a3ba9b7efb9eff3000f17d8bdbde00630tree | snapshot (tar.gz zip)
parent9587f44aa69a4cfb13701b31a633852684bed701commit | diff
vfio: Use down_reads to protect iommu disconnects

If a group or device is released or a container is unset from a group
it can race against file ops on the container.  Protect these with
down_reads to allow concurrent users.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reported-by: Michael S. Tsirkin <mst@redhat.com>
drivers/vfio/vfio.c diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)