From: Adrian Hunter <adrian.hunter@intel.com>
To: Bart Van Assche <bvanassche@acm.org>,
"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>,
linux-scsi@vger.kernel.org,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
Bean Huo <beanhuo@micron.com>, Avri Altman <avri.altman@wdc.com>,
Can Guo <cang@codeaurora.org>,
Stanley Chu <stanley.chu@mediatek.com>,
Asutosh Das <asutoshd@codeaurora.org>
Subject: Re: [PATCH v3 12/17] scsi: ufs: Introduce ufshcd_release_scsi_cmd()
Date: Wed, 1 Dec 2021 16:51:32 +0200 [thread overview]
Message-ID: <50a101a1-08a3-d419-195e-672e001266c3@intel.com> (raw)
In-Reply-To: <20211130233324.1402448-13-bvanassche@acm.org>
On 01/12/2021 01:33, Bart Van Assche wrote:
> The only functional change in this patch is that scsi_done() is now called
> after ufshcd_release() and ufshcd_clk_scaling_update_busy() instead of
> before.
>
> The next patch in this series will introduce a call to
> ufshcd_release_scsi_cmd() in the abort handler.
>
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
> drivers/scsi/ufs/ufshcd.c | 22 ++++++++++++++--------
> 1 file changed, 14 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 4e9755c060af..8703e4a70256 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -5213,6 +5213,18 @@ static irqreturn_t ufshcd_uic_cmd_compl(struct ufs_hba *hba, u32 intr_status)
> return retval;
> }
>
> +/* Release the resources allocated for processing a SCSI command. */
> +static void ufshcd_release_scsi_cmd(struct ufs_hba *hba,
> + struct ufshcd_lrb *lrbp)
> +{
> + struct scsi_cmnd *cmd = lrbp->cmd;
> +
> + scsi_dma_unmap(cmd);
> + lrbp->cmd = NULL; /* Mark the command as completed. */
> + ufshcd_release(hba);
> + ufshcd_clk_scaling_update_busy(hba);
> +}
> +
> /**
> * __ufshcd_transfer_req_compl - handle SCSI and query command completion
> * @hba: per adapter instance
> @@ -5223,7 +5235,6 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
> {
> struct ufshcd_lrb *lrbp;
> struct scsi_cmnd *cmd;
> - int result;
> int index;
>
> for_each_set_bit(index, &completed_reqs, hba->nutrs) {
> @@ -5234,15 +5245,10 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
> if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
> ufshcd_update_monitor(hba, lrbp);
> ufshcd_add_command_trace(hba, index, UFS_CMD_COMP);
> - result = ufshcd_transfer_rsp_status(hba, lrbp);
> - scsi_dma_unmap(cmd);
> - cmd->result = result;
> - /* Mark completed command as NULL in LRB */
> - lrbp->cmd = NULL;
> + cmd->result = ufshcd_transfer_rsp_status(hba, lrbp);
> + ufshcd_release_scsi_cmd(hba, lrbp);
> /* Do not touch lrbp after scsi done */
> scsi_done(cmd);
> - ufshcd_release(hba);
> - ufshcd_clk_scaling_update_busy(hba);
> } else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||
> lrbp->command_type == UTP_CMD_TYPE_UFS_STORAGE) {
> if (hba->dev_cmd.complete) {
>
next prev parent reply other threads:[~2021-12-01 14:51 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-30 23:33 [PATCH v3 00/17] UFS patches for kernel v5.17 Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 01/17] scsi: core: Fix scsi_device_max_queue_depth() Bart Van Assche
2021-12-01 1:32 ` Ming Lei
2021-11-30 23:33 ` [PATCH v3 02/17] scsi: core: Fix a race between scsi_done() and scsi_times_out() Bart Van Assche
2021-12-01 21:43 ` Keith Busch
2021-12-02 1:10 ` Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 03/17] scsi: ufs: Rename a function argument Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 04/17] scsi: ufs: Remove is_rpmb_wlun() Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 05/17] scsi: ufs: Remove the sdev_rpmb member Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 06/17] scsi: ufs: Remove dead code Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 07/17] scsi: ufs: Fix race conditions related to driver data Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 08/17] scsi: ufs: Remove ufshcd_any_tag_in_use() Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 09/17] scsi: ufs: Rework ufshcd_change_queue_depth() Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 10/17] scsi: ufs: Fix a deadlock in the error handler Bart Van Assche
2021-12-01 13:48 ` Adrian Hunter
2021-12-01 21:26 ` Bart Van Assche
2021-12-02 8:25 ` Adrian Hunter
2021-11-30 23:33 ` [PATCH v3 11/17] scsi: ufs: Remove the 'update_scaling' local variable Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 12/17] scsi: ufs: Introduce ufshcd_release_scsi_cmd() Bart Van Assche
2021-12-01 14:51 ` Adrian Hunter [this message]
2021-11-30 23:33 ` [PATCH v3 13/17] scsi: ufs: Improve SCSI abort handling further Bart Van Assche
2021-12-01 15:33 ` Adrian Hunter
2021-11-30 23:33 ` [PATCH v3 14/17] scsi: ufs: Fix a kernel crash during shutdown Bart Van Assche
2021-11-30 23:33 ` [PATCH v3 15/17] scsi: ufs: Stop using the clock scaling lock in the error handler Bart Van Assche
2021-12-01 14:08 ` Adrian Hunter
2021-11-30 23:33 ` [PATCH v3 16/17] scsi: ufs: Optimize the command queueing code Bart Van Assche
2021-12-01 23:33 ` Asutosh Das (asd)
2021-12-02 18:13 ` Bart Van Assche
2021-12-02 23:56 ` Bart Van Assche
2021-12-03 15:38 ` Asutosh Das (asd)
2021-11-30 23:33 ` [PATCH v3 17/17] scsi: ufs: Implement polling support Bart Van Assche
2021-12-02 15:44 ` [PATCH v3 00/17] UFS patches for kernel v5.17 Bean Huo
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