From: Jaegeuk Kim <jaegeuk@kernel.org>
To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
kernel-team@android.com
Cc: cang@codeaurora.org, alim.akhtar@samsung.com,
avri.altman@wdc.com, bvanassche@acm.org,
martin.petersen@oracle.com, stanley.chu@mediatek.com,
Jaegeuk Kim <jaegeuk@google.com>,
Asutosh Das <asutoshd@codeaurora.org>
Subject: [PATCH v5 4/7] scsi: ufs: use WQ_HIGHPRI for gating work
Date: Tue, 17 Nov 2020 08:58:36 -0800
Message-ID: <20201117165839.1643377-5-jaegeuk@kernel.org> (raw)
In-Reply-To: <20201117165839.1643377-1-jaegeuk@kernel.org>
From: Jaegeuk Kim <jaegeuk@google.com>
Must have WQ_MEM_RECLAIM
``WQ_MEM_RECLAIM``
All wq which might be used in the memory reclaim paths **MUST**
have this flag set. The wq is guaranteed to have at least one
execution context regardless of memory pressure.
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
---
drivers/scsi/ufs/ufshcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8e696ca79b40..c45c0cff174e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1868,7 +1868,7 @@ static void ufshcd_init_clk_gating(struct ufs_hba *hba)
snprintf(wq_name, ARRAY_SIZE(wq_name), "ufs_clk_gating_%d",
hba->host->host_no);
hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue(wq_name,
- WQ_MEM_RECLAIM);
+ WQ_MEM_RECLAIM | WQ_HIGHPRI);
hba->clk_gating.is_enabled = true;
--
2.29.2.299.gdc1121823c-goog
next prev parent reply index
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 16:58 [PATCH v5 0/5] scsi: ufs: add some fixes Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 1/7] scsi: ufs: avoid to call REQ_CLKS_OFF to CLKS_OFF Jaegeuk Kim
2020-11-18 3:54 ` Can Guo
2020-11-17 16:58 ` [PATCH v5 2/7] scsi: ufs: atomic update for clkgating_enable Jaegeuk Kim
2020-11-18 3:54 ` Can Guo
2020-11-17 16:58 ` [PATCH v5 3/7] scsi: ufs: clear UAC for FFU and RPMB LUNs Jaegeuk Kim
2020-11-17 16:58 ` Jaegeuk Kim [this message]
2020-11-17 16:58 ` [PATCH v5 5/7] scsi: add more contexts in the ufs tracepoints Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 6/7] scsi: ufs: fix clkgating on/off correctly Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 7/7] scsi: ufs: show lba and length for unmap commands Jaegeuk Kim
2020-11-18 1:11 ` Can Guo
2020-11-20 3:01 ` [PATCH v5 0/5] scsi: ufs: add some fixes Martin K. Petersen
2020-11-24 3:58 ` Martin K. Petersen
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