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From: Adrian Hunter <adrian.hunter@intel.com>
To: "Martin K . Petersen" <martin.petersen@oracle.com>
Cc: "James E . J . Bottomley" <jejb@linux.ibm.com>,
	Bean Huo <huobean@gmail.com>, Avri Altman <avri.altman@wdc.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Can Guo <cang@codeaurora.org>,
	Asutosh Das <asutoshd@codeaurora.org>,
	Bart Van Assche <bvanassche@acm.org>,
	linux-scsi@vger.kernel.org
Subject: [PATCH RFC 2/6] scsi: ufs: Rename clk_scaling_lock to host_rw_sem
Date: Mon,  4 Oct 2021 15:06:46 +0300	[thread overview]
Message-ID: <20211004120650.153218-3-adrian.hunter@intel.com> (raw)
In-Reply-To: <20211004120650.153218-1-adrian.hunter@intel.com>

To fit its new purpose as a more general purpose sleeping lock for the
host.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/scsi/ufs/ufshcd.c |  2 +-
 drivers/scsi/ufs/ufshcd.h | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 350ecfd90306..3912b74d50ae 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9630,7 +9630,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Initialize mutex for exception event control */
 	mutex_init(&hba->ee_ctrl_mutex);
 
-	init_rwsem(&hba->clk_scaling_lock);
+	init_rwsem(&hba->host_rw_sem);
 
 	ufshcd_init_clk_gating(hba);
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 9b1ef272fb3c..495e1c0afae3 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -897,7 +897,7 @@ struct ufs_hba {
 	enum bkops_status urgent_bkops_lvl;
 	bool is_urgent_bkops_lvl_checked;
 
-	struct rw_semaphore clk_scaling_lock;
+	struct rw_semaphore host_rw_sem;
 	unsigned char desc_size[QUERY_DESC_IDN_MAX];
 	atomic_t scsi_block_reqs_cnt;
 
@@ -1420,32 +1420,32 @@ static inline int ufshcd_rpmb_rpm_put(struct ufs_hba *hba)
 
 static inline void ufshcd_down_read(struct ufs_hba *hba)
 {
-	down_read(&hba->clk_scaling_lock);
+	down_read(&hba->host_rw_sem);
 }
 
 static inline void ufshcd_up_read(struct ufs_hba *hba)
 {
-	up_read(&hba->clk_scaling_lock);
+	up_read(&hba->host_rw_sem);
 }
 
 static inline int ufshcd_down_read_trylock(struct ufs_hba *hba)
 {
-	return down_read_trylock(&hba->clk_scaling_lock);
+	return down_read_trylock(&hba->host_rw_sem);
 }
 
 static inline void ufshcd_down_write(struct ufs_hba *hba)
 {
-	down_write(&hba->clk_scaling_lock);
+	down_write(&hba->host_rw_sem);
 }
 
 static inline void ufshcd_up_write(struct ufs_hba *hba)
 {
-	up_write(&hba->clk_scaling_lock);
+	up_write(&hba->host_rw_sem);
 }
 
 static inline void ufshcd_downgrade_write(struct ufs_hba *hba)
 {
-	downgrade_write(&hba->clk_scaling_lock);
+	downgrade_write(&hba->host_rw_sem);
 }
 
 #endif /* End of Header */
-- 
2.25.1


  parent reply	other threads:[~2021-10-04 12:09 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-04 12:06 [PATCH RFC 0/6] scsi: ufs: Start to make driver synchronization easier to understand Adrian Hunter
2021-10-04 12:06 ` [PATCH RFC 1/6] scsi: ufs: Encapsulate clk_scaling_lock by inline functions Adrian Hunter
2021-10-04 12:06 ` Adrian Hunter [this message]
2021-10-04 16:52   ` [PATCH RFC 2/6] scsi: ufs: Rename clk_scaling_lock to host_rw_sem Bart Van Assche
2021-10-05  5:06     ` Adrian Hunter
2021-10-05 19:06       ` Bart Van Assche
2021-10-04 12:06 ` [PATCH RFC 3/6] scsi: ufs: Let ufshcd_[down/up]_read be nested within ufshcd_[down/up]_write Adrian Hunter
2021-10-04 12:06 ` [PATCH RFC 4/6] scsi: ufs: Fix a possible dead lock in clock scaling Adrian Hunter
2021-10-04 12:06 ` [PATCH RFC 5/6] scsi: ufs: Reorder dev_cmd locking Adrian Hunter
2021-10-04 12:06 ` [PATCH RFC 6/6] scsi: ufs: Hold ufshcd_down_write() lock for entire error handler duration Adrian Hunter
2021-10-04 12:42 ` [PATCH RFC 0/6] scsi: ufs: Start to make driver synchronization easier to understand Avri Altman
2021-10-04 13:27   ` Adrian Hunter

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