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Message-Id: <20171130041907.4417-1-bjorn.andersson@linaro.org> Date: Wed, 29 Nov 2017 20:19:07 -0800 From: Bjorn Andersson <bjorn.andersson@...aro.org> To: Vinayak Holikatti <vinholikatti@...il.com>, "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>, "Martin K. Petersen" <martin.petersen@...cle.com> Cc: linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, Subhash Jadavani <subhashj@...eaurora.org>, Vivek Gautam <vivek.gautam@...eaurora.org>, Yaniv Gardi <ygardi@...eaurora.org>, stable@...r.kernel.org Subject: [PATCH] scsi: ufs: ufshcd: Enable no_write_same for scsi host Occasionally the following error message can be seen in the logs of Qualcomm devices using UFS: EXT4-fs (sda9): Delayed block allocation failed for inode 685600 at logical offset 1086 with max blocks 3 with error 121 EXT4-fs (sda9): This should not happen!! Data will be lost This is caused by a failing WRITE_SAME command, which per the JEDEC UFS specification is not a supported. Set the no_write_same flag on the ufshcd SCSI host to let the SCSI layer know this. Fixes: 7a3e97b0dc4b ("[SCSI] ufshcd: UFS Host controller driver") Cc: stable@...r.kernel.org Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org> --- drivers/scsi/ufs/ufshcd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 88c086f5c4e3..e5b1efd1dafd 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -6515,6 +6515,7 @@ static struct scsi_host_template ufshcd_driver_template = { .can_queue = UFSHCD_CAN_QUEUE, .max_host_blocked = 1, .track_queue_depth = 1, + .no_write_same = 1, }; static int ufshcd_config_vreg_load(struct device *dev, struct ufs_vreg *vreg, -- 2.15.0
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