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scsi: ufs: Switch WriteBooster missing free space message as warn_once

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Once the UFS WriteBooster fails to allocate memory, the situation will
stay until fstrim or equivalent is ran.

Mark is as a warning since it impacts the performance but only print it
once for the lifetime of the kernel since it's not fatal.

Otherwise it will be printed each time the device is resumed:

[   31.666880] ufshcd-qcom 1d84000.ufshc: dCurWBBuf: 0 WB disabled until free-space is available
[   52.655594] ufshcd-qcom 1d84000.ufshc: dCurWBBuf: 0 WB disabled until free-space is available
[   62.890469] ufshcd-qcom 1d84000.ufshc: dCurWBBuf: 0 WB disabled until free-space is available
...

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20260618-topic-ufs-wb-empty-warn-v1-1-ec744a153e0e@linaro.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Neil Armstrong 2026-06-18 09:52:09 +02:00 committed by Martin K. Petersen
parent 35457edc5b
commit c6cee609f6
1 changed files with 2 additions and 2 deletions
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4
drivers/ufs/core/ufshcd.c
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@ -6418,8 +6418,8 @@ static bool ufshcd_wb_curr_buff_threshold_check(struct ufs_hba *hba,
}
if (!cur_buf) {
dev_info(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n",
cur_buf);
dev_warn_once(hba->dev, "dCurWBBuf: %d WB disabled until free-space is available\n",
cur_buf);
return false;
}
/* Let it continue to flush when available buffer exceeds threshold */