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From: Thomas Hellstrom <thellstrom@vmware.com>
To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	peterz@infradead.org
Cc: pv-drivers@vmware.com, Thomas Hellstrom <thellstrom@vmware.com>,
	linux-graphics-maintainer@vmware.com
Subject: [PATCH v4 3/3] drm: Change deadlock-avoidance algorithm for the modeset locks.
Date: Tue, 19 Jun 2018 10:24:45 +0200	[thread overview]
Message-ID: <20180619082445.11062-4-thellstrom@vmware.com> (raw)
In-Reply-To: <20180619082445.11062-1-thellstrom@vmware.com>

For modeset locks we don't expect a high number of contending
transactions so change algorithm from Wait-Die to Wound-Wait.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>

---
v2, v3, v4: Adjusted to API changes.
---
 drivers/gpu/drm/drm_modeset_lock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c
index 638be2eb67b4..8a5100685875 100644
--- a/drivers/gpu/drm/drm_modeset_lock.c
+++ b/drivers/gpu/drm/drm_modeset_lock.c
@@ -70,7 +70,7 @@
  * lists and lookup data structures.
  */
 
-static DEFINE_WD_CLASS(crtc_ww_class);
+static DEFINE_WW_CLASS(crtc_ww_class);
 
 /**
  * drm_modeset_lock_all - take all modeset locks
-- 
2.14.3

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WARNING: multiple messages have this Message-ID (diff)
From: Thomas Hellstrom <thellstrom@vmware.com>
To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	peterz@infradead.org
Cc: linux-graphics-maintainer@vmware.com, pv-drivers@vmware.com,
	Thomas Hellstrom <thellstrom@vmware.com>
Subject: [PATCH v4 3/3] drm: Change deadlock-avoidance algorithm for the modeset locks.
Date: Tue, 19 Jun 2018 10:24:45 +0200	[thread overview]
Message-ID: <20180619082445.11062-4-thellstrom@vmware.com> (raw)
In-Reply-To: <20180619082445.11062-1-thellstrom@vmware.com>

For modeset locks we don't expect a high number of contending
transactions so change algorithm from Wait-Die to Wound-Wait.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>

---
v2, v3, v4: Adjusted to API changes.
---
 drivers/gpu/drm/drm_modeset_lock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c
index 638be2eb67b4..8a5100685875 100644
--- a/drivers/gpu/drm/drm_modeset_lock.c
+++ b/drivers/gpu/drm/drm_modeset_lock.c
@@ -70,7 +70,7 @@
  * lists and lookup data structures.
  */
 
-static DEFINE_WD_CLASS(crtc_ww_class);
+static DEFINE_WW_CLASS(crtc_ww_class);
 
 /**
  * drm_modeset_lock_all - take all modeset locks
-- 
2.14.3


  parent reply	other threads:[~2018-06-19  8:26 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-19  8:24 [PATCH v4 0/4] locking,drm: Fix ww mutex naming / algorithm inconsistency Thomas Hellstrom
2018-06-19  8:24 ` Thomas Hellstrom
2018-06-19  8:24 ` [PATCH v4 0/4] locking, drm: " Thomas Hellstrom
2018-06-19  8:24 ` [PATCH 1/3] locking: WW mutex cleanup Thomas Hellstrom
2018-06-19  8:24   ` Thomas Hellstrom
2018-06-19  8:24   ` Thomas Hellstrom
2018-06-19  9:44   ` Peter Zijlstra
2018-06-19  9:44     ` Peter Zijlstra
2018-06-19  9:44     ` Peter Zijlstra
2018-06-19 10:44     ` Thomas Hellstrom
2018-06-19 10:44       ` Thomas Hellstrom
2018-06-19 10:44       ` Thomas Hellstrom
2018-06-19 11:02       ` Peter Zijlstra
2018-06-19 11:02         ` Peter Zijlstra
2018-06-19 11:02         ` Peter Zijlstra
2018-06-19  8:24 ` [PATCH v4 2/3] locking: Implement an algorithm choice for Wound-Wait mutexes Thomas Hellstrom
2018-06-19  8:24   ` Thomas Hellstrom
2018-06-19  8:24   ` Thomas Hellstrom
2018-06-19  9:45   ` Peter Zijlstra
2018-06-19  9:45     ` Peter Zijlstra
2018-06-19  9:45     ` Peter Zijlstra
2019-01-16 14:24   ` Rob Clark
2019-01-16 14:24     ` Rob Clark
2019-01-16 16:48     ` Thomas Hellstrom
2019-01-16 16:48       ` Thomas Hellstrom
2019-01-17 12:47       ` Rob Clark
2019-01-17 12:47         ` Rob Clark
2018-06-19  8:24 ` Thomas Hellstrom [this message]
2018-06-19  8:24   ` [PATCH v4 3/3] drm: Change deadlock-avoidance algorithm for the modeset locks Thomas Hellstrom
2018-06-19  9:45 ` [PATCH v4 0/4] locking,drm: Fix ww mutex naming / algorithm inconsistency Peter Zijlstra
2018-06-19  9:45   ` Peter Zijlstra
2018-06-19  9:45   ` Peter Zijlstra
2018-06-20  5:17   ` Thomas Hellstrom
2018-06-20  5:17     ` Thomas Hellstrom
2018-06-20  5:17     ` Thomas Hellstrom
2018-06-21 10:56     ` Ingo Molnar
2018-06-21 10:56       ` Ingo Molnar
2018-06-21 10:56       ` Ingo Molnar

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