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authorLinus Torvalds <torvalds@linux-foundation.org>2018-03-28 02:11:46 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-03-28 02:11:46 +0200
commitfd9adc402b3d897709f56914702f243efa434c76 (patch)
tree2693099187a137b3fc9609b0af8822d0d07bf29e /drivers/scsi/iscsi_tcp.c
parentLinux 4.16-rc7 (diff)
parentscsi: iscsi_tcp: set BDI_CAP_STABLE_WRITES when data digest enabled (diff)
downloadlinux-fd9adc402b3d897709f56914702f243efa434c76.tar.xz
linux-fd9adc402b3d897709f56914702f243efa434c76.zip
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley: "Two driver fixes (ibmvfc, iscsi_tcp) and a USB fix for devices that give the wrong return to Read Capacity and cause a huge log spew. The remaining five patches all try to fix commit 84676c1f21e8 ("genirq/affinity: assign vectors to all possible CPUs") which broke the non-mq I/O path" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: iscsi_tcp: set BDI_CAP_STABLE_WRITES when data digest enabled scsi: sd: Remember that READ CAPACITY(16) succeeded scsi: ibmvfc: Avoid unnecessary port relogin scsi: virtio_scsi: unify scsi_host_template scsi: virtio_scsi: fix IO hang caused by automatic irq vector affinity scsi: core: introduce force_blk_mq scsi: megaraid_sas: fix selection of reply queue scsi: hpsa: fix selection of reply queue
Diffstat (limited to 'drivers/scsi/iscsi_tcp.c')
-rw-r--r--drivers/scsi/iscsi_tcp.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 6198559abbd8..dd66c11399a2 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -37,6 +37,7 @@
#include <linux/kfifo.h>
#include <linux/scatterlist.h>
#include <linux/module.h>
+#include <linux/backing-dev.h>
#include <net/tcp.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
@@ -954,6 +955,13 @@ static int iscsi_sw_tcp_slave_alloc(struct scsi_device *sdev)
static int iscsi_sw_tcp_slave_configure(struct scsi_device *sdev)
{
+ struct iscsi_sw_tcp_host *tcp_sw_host = iscsi_host_priv(sdev->host);
+ struct iscsi_session *session = tcp_sw_host->session;
+ struct iscsi_conn *conn = session->leadconn;
+
+ if (conn->datadgst_en)
+ sdev->request_queue->backing_dev_info->capabilities
+ |= BDI_CAP_STABLE_WRITES;
blk_queue_bounce_limit(sdev->request_queue, BLK_BOUNCE_ANY);
blk_queue_dma_alignment(sdev->request_queue, 0);
return 0;