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habanalabs: ratelimit warnings at start of IOCTLs

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At the start of some IOCTLs we check if the device is disabled or in reset.
If it is, we return -EBUSY and print a message to kernel log.

Because these IOCTLs can be called at very high frequency, use ratelimit
to avoid spamming the kernel log. Also use the same type of message -
dev_warn - in all the relevant IOCTLs.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Oded Gabbay 2019-03-05 13:53:22 +02:00
parent e0a29952c5
commit 680cb3991c
2 changed files with 2 additions and 2 deletions
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2
drivers/misc/habanalabs/command_submission.c
View File

@ -604,7 +604,7 @@ int hl_cs_ioctl(struct hl_fpriv *hpriv, void *data)
bool need_soft_reset = false;
if (hl_device_disabled_or_in_reset(hdev)) {
dev_warn(hdev->dev,
dev_warn_ratelimited(hdev->dev,
"Device is %s. Can't submit new CS\n",
atomic_read(&hdev->in_reset) ? "in_reset" : "disabled");
rc = -EBUSY;

2
drivers/misc/habanalabs/habanalabs_ioctl.c
View File

@ -106,7 +106,7 @@ static int hl_info_ioctl(struct hl_fpriv *hpriv, void *data)
int rc;
if (hl_device_disabled_or_in_reset(hdev)) {
dev_err(hdev->dev,
dev_warn_ratelimited(hdev->dev,
"Device is disabled or in reset. Can't execute INFO IOCTL\n");
return -EBUSY;
}