From: Oded Gabbay <oded.gabbay@gmail.com>
To: linux-kernel@vger.kernel.org, oshpigelman@habana.ai,
ttayar@habana.ai, gregkh@linuxfoundation.org
Subject: [PATCH v2 2/7] habanalabs: kill user process after CS rollback
Date: Tue, 30 Jul 2019 12:47:19 +0300 [thread overview]
Message-ID: <20190730094724.18691-3-oded.gabbay@gmail.com> (raw)
In-Reply-To: <20190730094724.18691-1-oded.gabbay@gmail.com>
This patch calls the kill user process function after we rollback the
in-flight CSs. This is because the user process can't be closed while
there are open CSs. Therefore, there is no point of sending it a SIGKILL
before we do the rollback CS part.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
---
drivers/misc/habanalabs/device.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c
index 0c4894dd9c02..d1bc8f4ed5bb 100644
--- a/drivers/misc/habanalabs/device.c
+++ b/drivers/misc/habanalabs/device.c
@@ -630,8 +630,6 @@ static void device_hard_reset_pending(struct work_struct *work)
container_of(work, struct hl_device_reset_work, reset_work);
struct hl_device *hdev = device_reset_work->hdev;
- device_kill_open_processes(hdev);
-
hl_device_reset(hdev, true, true);
kfree(device_reset_work);
@@ -736,6 +734,13 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset,
/* Go over all the queues, release all CS and their jobs */
hl_cs_rollback_all(hdev);
+ /* Kill processes here after CS rollback. This is because the process
+ * can't really exit until all its CSs are done, which is what we
+ * do in cs rollback
+ */
+ if (from_hard_reset_thread)
+ device_kill_open_processes(hdev);
+
/* Release kernel context */
if ((hard_reset) && (hl_ctx_put(hdev->kernel_ctx) == 1))
hdev->kernel_ctx = NULL;
@@ -1130,8 +1135,6 @@ void hl_device_fini(struct hl_device *hdev)
hdev->hard_reset_pending = true;
- device_kill_open_processes(hdev);
-
hl_hwmon_fini(hdev);
device_late_fini(hdev);
@@ -1150,6 +1153,12 @@ void hl_device_fini(struct hl_device *hdev)
/* Go over all the queues, release all CS and their jobs */
hl_cs_rollback_all(hdev);
+ /* Kill processes here after CS rollback. This is because the process
+ * can't really exit until all its CSs are done, which is what we
+ * do in cs rollback
+ */
+ device_kill_open_processes(hdev);
+
hl_cb_pool_fini(hdev);
/* Release kernel context */
--
2.17.1
next prev parent reply other threads:[~2019-07-30 9:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-30 9:47 [PATCH v2 0/7] habanalabs: support info queries by multiple processes Oded Gabbay
2019-07-30 9:47 ` [PATCH v2 1/7] habanalabs: add handle field to context structure Oded Gabbay
2019-07-30 9:47 ` Oded Gabbay [this message]
2019-07-30 9:47 ` [PATCH v2 3/7] habanalabs: show the process context dram usage Oded Gabbay
2019-07-30 9:47 ` [PATCH v2 4/7] habanalabs: rename user_ctx as compute_ctx Oded Gabbay
2019-07-30 9:47 ` [PATCH v2 5/7] habanalabs: maintain a list of file private data objects Oded Gabbay
2019-07-30 9:47 ` [PATCH v2 6/7] habanalabs: change device_setup_cdev() to be more generic Oded Gabbay
2019-07-30 9:47 ` [PATCH v2 7/7] habanalabs: create two char devices per ASIC Oded Gabbay
2019-07-30 10:42 ` Greg KH
2019-07-30 11:23 ` Oded Gabbay
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190730094724.18691-3-oded.gabbay@gmail.com \
--to=oded.gabbay@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=oshpigelman@habana.ai \
--cc=ttayar@habana.ai \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).