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Date:   Thu, 30 Apr 2020 19:15:35 -0700
From:   James Bottomley <James.Bottomley@...senPartnership.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-scsi <linux-scsi@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] SCSI fixes for 5.7-rc3

Four minor fixes: three in drivers and one in the core.  The core one
allows an additional state change that fixes a regression introduced by
an update to the aacraid driver in the previous merge window.

The patch is available here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes

The short changelog is:

David Disseldorp (1):
      scsi: target/iblock: fix WRITE SAME zeroing

Dexuan Cui (1):
      scsi: core: Allow the state change from SDEV_QUIESCE to SDEV_BLOCK

Martin Wilck (2):
      scsi: qla2xxx: check UNLOADING before posting async work
      scsi: qla2xxx: set UNLOADING before waiting for session deletion

And the diffstat

 drivers/scsi/qla2xxx/qla_os.c       | 35 +++++++++++++++++------------------
 drivers/scsi/scsi_lib.c             |  1 +
 drivers/target/target_core_iblock.c |  2 +-
 3 files changed, 19 insertions(+), 19 deletions(-)

With full diff below.

James

---

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index d190db5ea7d9..1d9a4866f9a7 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3732,6 +3732,13 @@ qla2x00_remove_one(struct pci_dev *pdev)
 	}
 	qla2x00_wait_for_hba_ready(base_vha);
 
+	/*
+	 * if UNLOADING flag is already set, then continue unload,
+	 * where it was set first.
+	 */
+	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
+		return;
+
 	if (IS_QLA25XX(ha) || IS_QLA2031(ha) || IS_QLA27XX(ha) ||
 	    IS_QLA28XX(ha)) {
 		if (ha->flags.fw_started)
@@ -3750,15 +3757,6 @@ qla2x00_remove_one(struct pci_dev *pdev)
 
 	qla2x00_wait_for_sess_deletion(base_vha);
 
-	/*
-	 * if UNLOAD flag is already set, then continue unload,
-	 * where it was set first.
-	 */
-	if (test_bit(UNLOADING, &base_vha->dpc_flags))
-		return;
-
-	set_bit(UNLOADING, &base_vha->dpc_flags);
-
 	qla_nvme_delete(base_vha);
 
 	dma_free_coherent(&ha->pdev->dev,
@@ -4864,6 +4862,9 @@ qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
 	struct qla_work_evt *e;
 	uint8_t bail;
 
+	if (test_bit(UNLOADING, &vha->dpc_flags))
+		return NULL;
+
 	QLA_VHA_MARK_BUSY(vha, bail);
 	if (bail)
 		return NULL;
@@ -6628,13 +6629,6 @@ qla2x00_disable_board_on_pci_error(struct work_struct *work)
 	struct pci_dev *pdev = ha->pdev;
 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 
-	/*
-	 * if UNLOAD flag is already set, then continue unload,
-	 * where it was set first.
-	 */
-	if (test_bit(UNLOADING, &base_vha->dpc_flags))
-		return;
-
 	ql_log(ql_log_warn, base_vha, 0x015b,
 	    "Disabling adapter.\n");
 
@@ -6645,9 +6639,14 @@ qla2x00_disable_board_on_pci_error(struct work_struct *work)
 		return;
 	}
 
-	qla2x00_wait_for_sess_deletion(base_vha);
+	/*
+	 * if UNLOADING flag is already set, then continue unload,
+	 * where it was set first.
+	 */
+	if (test_and_set_bit(UNLOADING, &base_vha->dpc_flags))
+		return;
 
-	set_bit(UNLOADING, &base_vha->dpc_flags);
+	qla2x00_wait_for_sess_deletion(base_vha);
 
 	qla2x00_delete_all_vps(ha, base_vha);
 
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 47835c4b4ee0..06c260f6cdae 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2284,6 +2284,7 @@ scsi_device_set_state(struct scsi_device *sdev, enum scsi_device_state state)
 		switch (oldstate) {
 		case SDEV_RUNNING:
 		case SDEV_CREATED_BLOCK:
+		case SDEV_QUIESCE:
 		case SDEV_OFFLINE:
 			break;
 		default:
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 51ffd5c002de..1c181d31f4c8 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -432,7 +432,7 @@ iblock_execute_zero_out(struct block_device *bdev, struct se_cmd *cmd)
 				target_to_linux_sector(dev, cmd->t_task_lba),
 				target_to_linux_sector(dev,
 					sbc_get_write_same_sectors(cmd)),
-				GFP_KERNEL, false);
+				GFP_KERNEL, BLKDEV_ZERO_NOUNMAP);
 	if (ret)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 

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