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From: Oded Gabbay <ogabbay@kernel.org>
To: dri-devel@lists.freedesktop.org
Cc: Koby Elbaz <kelbaz@habana.ai>
Subject: [PATCH 11/12] accel/habanalabs: call put_pid after hpriv list is updated
Date: Thu,  8 Jun 2023 16:38:48 +0300	[thread overview]
Message-ID: <20230608133849.2739411-11-ogabbay@kernel.org> (raw)
In-Reply-To: <20230608133849.2739411-1-ogabbay@kernel.org>

From: Koby Elbaz <kelbaz@habana.ai>

Because we might still be using related resources, decrementing PID's
reference count should be done at later stages of the device release.
A good place is right after the representing private structure is
removed from LKD's list.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/accel/habanalabs/common/device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c
index 764d40c0d666..c61a58a2e622 100644
--- a/drivers/accel/habanalabs/common/device.c
+++ b/drivers/accel/habanalabs/common/device.c
@@ -408,8 +408,6 @@ static void hpriv_release(struct kref *ref)
 
 	hdev->asic_funcs->send_device_activity(hdev, false);
 
-	put_pid(hpriv->taskpid);
-
 	hl_debugfs_remove_file(hpriv);
 
 	mutex_destroy(&hpriv->ctx_lock);
@@ -448,6 +446,8 @@ static void hpriv_release(struct kref *ref)
 	list_del(&hpriv->dev_node);
 	mutex_unlock(&hdev->fpriv_list_lock);
 
+	put_pid(hpriv->taskpid);
+
 	if (reset_device) {
 		hl_device_reset(hdev, HL_DRV_RESET_DEV_RELEASE);
 	} else {
-- 
2.40.1


  parent reply	other threads:[~2023-06-08 13:39 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-08 13:38 [PATCH 01/12] accel/habanalabs: prevent immediate hard reset due to 2 adjacent H/W events Oded Gabbay
2023-06-08 13:38 ` [PATCH 02/12] accel/habanalabs: update pending reset flags with new reset requests Oded Gabbay
2023-06-08 13:38 ` [PATCH 03/12] accel/habanalabs: notify user about undefined opcode event Oded Gabbay
2023-06-08 13:38 ` [PATCH 04/12] accel/habanalabs: print task name and request code upon ioctl failure Oded Gabbay
2023-06-08 13:38 ` [PATCH 05/12] accel/habanalabs: print task name upon creation of a user context Oded Gabbay
2023-06-08 13:38 ` [PATCH 06/12] accel/habanalabs: set device status 'malfunction' while in rmmod Oded Gabbay
2023-06-08 13:38 ` [PATCH 07/12] accel/habanalabs: stop fetching MME SBTE error cause Oded Gabbay
2023-06-08 13:38 ` [PATCH 08/12] accel/habanalabs: handle arc farm razwi Oded Gabbay
2023-06-08 13:38 ` [PATCH 09/12] accel/habanalabs: fix standalone preboot descriptor request Oded Gabbay
2023-06-08 13:38 ` [PATCH 10/12] accel/habanalabs: print return code when process termination fails Oded Gabbay
2023-06-08 13:38 ` Oded Gabbay [this message]
2023-06-08 13:38 ` [PATCH 12/12] accel/habanalabs: rename fd_list to hpriv_list Oded Gabbay

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