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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Bart Van Assche <bvanassche@acm.org>,
	David Disseldorp <ddiss@suse.de>,
	"Martin K. Petersen" <martin.petersen@oracle.com>
Subject: [PATCH 4.14 21/26] scsi: target/iblock: fix WRITE SAME zeroing
Date: Mon,  4 May 2020 19:57:35 +0200	[thread overview]
Message-ID: <20200504165447.183232934@linuxfoundation.org> (raw)
In-Reply-To: <20200504165442.494398840@linuxfoundation.org>

From: David Disseldorp <ddiss@suse.de>

commit 1d2ff149b263c9325875726a7804a0c75ef7112e upstream.

SBC4 specifies that WRITE SAME requests with the UNMAP bit set to zero
"shall perform the specified write operation to each LBA specified by the
command".  Commit 2237498f0b5c ("target/iblock: Convert WRITE_SAME to
blkdev_issue_zeroout") modified the iblock backend to call
blkdev_issue_zeroout() when handling WRITE SAME requests with UNMAP=0 and a
zero data segment.

The iblock blkdev_issue_zeroout() call incorrectly provides a flags
parameter of 0 (bool false), instead of BLKDEV_ZERO_NOUNMAP.  The bool
false parameter reflects the blkdev_issue_zeroout() API prior to commit
ee472d835c26 ("block: add a flags argument to (__)blkdev_issue_zeroout")
which was merged shortly before 2237498f0b5c.

Link: https://lore.kernel.org/r/20200419163109.11689-1-ddiss@suse.de
Fixes: 2237498f0b5c ("target/iblock: Convert WRITE_SAME to blkdev_issue_zeroout")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/target/target_core_iblock.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -447,7 +447,7 @@ iblock_execute_zero_out(struct block_dev
 				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;
 



  parent reply	other threads:[~2020-05-04 18:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-04 17:57 [PATCH 4.14 00/26] 4.14.179-rc1 review Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 01/26] ext4: fix special inode number checks in __ext4_iget() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 02/26] drm/edid: Fix off-by-one in DispID DTD pixel clock Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 03/26] drm/qxl: qxl_release leak in qxl_draw_dirty_fb() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 04/26] drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 05/26] drm/qxl: qxl_release use after free Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 06/26] btrfs: fix block group leak when removing fails Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 07/26] btrfs: fix partial loss of prealloc extent past i_size after fsync Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 08/26] mmc: sdhci-xenon: fix annoying 1.8V regulator warning Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 09/26] mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 10/26] ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 11/26] ALSA: hda/hdmi: fix without unlocked before return Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 12/26] ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 13/26] PM: ACPI: Output correct message on target power state Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 14/26] PM: hibernate: Freeze kernel threads in software_resume() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 15/26] dm verity fec: fix hash block number in verity_fec_decode Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 16/26] RDMA/mlx5: Set GRH fields in query QP on RoCE Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 17/26] RDMA/mlx4: Initialize ib_spec on the stack Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 18/26] vfio: avoid possible overflow in vfio_iommu_type1_pin_pages Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 19/26] vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 20/26] iommu/qcom: Fix local_base status check Greg Kroah-Hartman
2020-05-04 17:57 ` Greg Kroah-Hartman [this message]
2020-05-04 17:57 ` [PATCH 4.14 22/26] iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 23/26] ALSA: opti9xx: shut up gcc-10 range warning Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 24/26] nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 25/26] dmaengine: dmatest: Fix iteration non-stop logic Greg Kroah-Hartman
2020-05-04 17:57 ` [PATCH 4.14 26/26] selinux: properly handle multiple messages in selinux_netlink_send() Greg Kroah-Hartman
     [not found] ` <20200504165442.494398840-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2020-05-05  8:37   ` [PATCH 4.14 00/26] 4.14.179-rc1 review Jon Hunter
2020-05-05  8:37     ` Jon Hunter
2020-05-05 15:35 ` Naresh Kamboju
2020-05-05 15:48 ` Guenter Roeck
2020-05-05 15:53 ` shuah

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