Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
vhost: add non-blocking API for posting interrupt
[ upstream commit 830f7e7 ] Vhost-user library locks all VQ's access lock when processing vring based messages, such as SET_VRING_KICK and SET_VRING_CALL, and the data processing thread may already be started, e.g: SPDK vhost-blk and vhost-scsi will start the data processing thread when one vring is ready, then deadlock may happen when SPDK is posting interrupts to VM. Here, we add a new API which allows caller to try again later for this case. Bugzilla ID: 1015 Fixes: c573699 ("vhost: fix missing virtqueue lock protection") Signed-off-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
- Loading branch information
1 parent
a38a7de
commit a5ff9eb
Showing
4 changed files
with
52 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters