From c044822affcf1fb21e4f4d26b18f73f152ea2a6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= <olysonek@redhat.com>
Date: Tue, 26 Nov 2019 15:49:39 +0100
Subject: [PATCH 1/3] Fix Traceback on reload when the preset profile does not
 exist
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The reload_profile_config() method can pass through a TunedException
when the requested profile does not exist, or is invalid. We need to
catch it and log the error.

Resolves: rhbz#1774645
Resolves: rhbz#1702724

Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
---
 tuned/daemon/controller.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tuned/daemon/controller.py b/tuned/daemon/controller.py
index 5e1e9ba2..48c30ea6 100644
--- a/tuned/daemon/controller.py
+++ b/tuned/daemon/controller.py
@@ -138,7 +138,11 @@ def reload(self, caller = None):
 			stop_ok = self.stop()
 			if not stop_ok:
 				return False
-			self._daemon.reload_profile_config()
+			try:
+				self._daemon.reload_profile_config()
+			except TunedException as e:
+				log.error("Failed to reload Tuned: %s" % e)
+				return False
 			return self.start()
 
 	def _switch_profile(self, profile_name, manual):

From 5d8ef2c0095e999107574ebfb86e735bc048756e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= <olysonek@redhat.com>
Date: Tue, 26 Nov 2019 16:53:04 +0100
Subject: [PATCH 2/3] Set manual profile mode on tuned-adm off
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

To fix rhbz#1774645 and rhbz#1702724, we need to make the
`Controller.reload` operation behave the same as a Tuned restart even
in the case when Tuned is running but no profile is applied. If we did
that, while setting automatic profile mode on `tuned-adm off` (as it
is currently done), we would end up with a behaviour where `tuned-adm
off` followed by controller reload would result in the recommended
profile being applied.

We agreed with Jaroslav that this behaviour wouldn't make sense, so we
instead decided to change the behaviour of `tuned-adm off` followed by
Tuned *restart*. Previously, it would result in the recommended
profile being applied (which doesn't make much sense to us either). So
we decided to change `tuned-adm off`, so that even after restart,
Tuned runs with no profile applied, i.e. making `tuned-adm off` set
manual profile mode.

Related: rhbz#1774645
Related: rhbz#1702724

Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
---
 tuned/daemon/controller.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tuned/daemon/controller.py b/tuned/daemon/controller.py
index 48c30ea6..5bd4d31a 100644
--- a/tuned/daemon/controller.py
+++ b/tuned/daemon/controller.py
@@ -219,7 +219,7 @@ def disable(self, caller = None):
 		if self._daemon.is_running():
 			self._daemon.stop()
 		if self._daemon.is_enabled():
-			self._daemon.set_profile(None, None, save_instantly=True)
+			self._daemon.set_profile(None, True, save_instantly=True)
 		return True
 
 	@exports.export("", "b")

From d545b13dc1e7568af42a59e9721033813eccb61a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= <olysonek@redhat.com>
Date: Wed, 27 Nov 2019 10:53:03 +0100
Subject: [PATCH 3/3] controller: Proceed with reload even if daemon is not
 running
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

To fix rhbz#1774645 and rhbz#1702724, we need to make the
`Controller.reload` operation behave the same as a Tuned restart even
in the case when Tuned is running but no profile is applied. To
achieve that, we must not `return False` from `reload()` when Daemon
is not running.

I'm not aware of any specific purpose the `return False` could serve,
other than perhaps making sure that running reload after `tuned-adm
off` does not result in the recommended profile being applied. This
case is handled in commit 5d8ef2c0095e9, so I think it should be safe
now to drop the `return`.

Resolves: rhbz#1774645
Resolves: rhbz#1702724

Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
---
 tuned/daemon/controller.py | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/tuned/daemon/controller.py b/tuned/daemon/controller.py
index 5bd4d31a..18e0bb61 100644
--- a/tuned/daemon/controller.py
+++ b/tuned/daemon/controller.py
@@ -132,18 +132,16 @@ def stop(self, caller = None):
 	def reload(self, caller = None):
 		if caller == "":
 			return False
-		if not self._daemon.is_running():
-			return False
-		else:
+		if self._daemon.is_running():
 			stop_ok = self.stop()
 			if not stop_ok:
 				return False
-			try:
-				self._daemon.reload_profile_config()
-			except TunedException as e:
-				log.error("Failed to reload Tuned: %s" % e)
-				return False
-			return self.start()
+		try:
+			self._daemon.reload_profile_config()
+		except TunedException as e:
+			log.error("Failed to reload Tuned: %s" % e)
+			return False
+		return self.start()
 
 	def _switch_profile(self, profile_name, manual):
 		was_running = self._daemon.is_running()