vmwgfx has really ugly implemention of an interruptible lock trying to match rw sem semantics. By adding a small bit of code implementing down_write_interruptible to rwsem which already supported down_read_interruptible we can completely remove all of the custom code from vmwgfx.
Cc: Peter Zijlstra peterz@infradead.org Cc: Ingo Molnar mingo@redhat.com Cc: Will Deacon will@kernel.org Cc: Martin Krastev krastevm@vmware.com Cc: Roland Scheidegger sroland@vmware.com Cc: linux-kernel@vger.kernel.org Cc: dri-devel@lists.freedesktop.org
Zack Rusin (2): locking/rwsem: Add down_write_interruptible drm/vmwgfx: Remove custom locking code
drivers/gpu/drm/vmwgfx/Makefile | 2 +- drivers/gpu/drm/vmwgfx/ttm_lock.c | 194 ---------------- drivers/gpu/drm/vmwgfx/ttm_lock.h | 218 ------------------ drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 24 +- drivers/gpu/drm/vmwgfx/vmwgfx_context.c | 4 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 57 +---- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 32 ++- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 4 +- drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 10 +- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 8 +- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 4 +- drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 8 +- drivers/gpu/drm/vmwgfx/vmwgfx_shader.c | 4 +- .../gpu/drm/vmwgfx/vmwgfx_simple_resource.c | 4 +- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 16 +- include/linux/rwsem.h | 1 + kernel/locking/rwsem.c | 23 ++ 17 files changed, 98 insertions(+), 515 deletions(-) delete mode 100644 drivers/gpu/drm/vmwgfx/ttm_lock.c delete mode 100644 drivers/gpu/drm/vmwgfx/ttm_lock.h