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| author | Brian King <brking@linux.vnet.ibm.com> | 2014-05-23 19:52:11 +0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-06-25 15:29:32 +0400 |
| commit | 7114aae02742d6b5c5a0d39a41deb61d415d3717 (patch) | |
| tree | cf6d4c0153c99b262ee07a050afb3d6262d758fd /drivers/scsi/virtio_scsi.c | |
| parent | 9ee755974bea2f9880e517ec985dc9dede1b3a36 (diff) | |
| download | linux-7114aae02742d6b5c5a0d39a41deb61d415d3717.tar.xz | |
ibmvscsi: Add memory barriers for send / receive
Add a memory barrier prior to sending a new command to the VIOS
to ensure the VIOS does not receive stale data in the command buffer.
Also add a memory barrier when processing the CRQ for completed commands.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/virtio_scsi.c')
0 files changed, 0 insertions, 0 deletions