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Message-Id: <20200311235653.141701-1-rammuthiah@google.com>
Date: Wed, 11 Mar 2020 16:56:53 -0700
From: Ram Muthiah <rammuthiah@...gle.com>
To: Jens Axboe <axboe@...nel.dk>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-team@...roid.com, Ram Muthiah <rammuthiah@...gle.com>
Subject: [PATCH] Inline contents of BLK_MQ_VIRTIO config
The config contains one symbol and is a dep of only two configs.
Inlined this symbol so that it's built in by the two configs
which need it and deleted the config.
Signed-off-by: Ram Muthiah <rammuthiah@...gle.com>
---
block/Kconfig | 5 ----
block/Makefile | 1 -
block/blk-mq-virtio.c | 46 -----------------------------------
include/linux/blk-mq-virtio.h | 43 +++++++++++++++++++++++++++++---
4 files changed, 39 insertions(+), 56 deletions(-)
delete mode 100644 block/blk-mq-virtio.c
diff --git a/block/Kconfig b/block/Kconfig
index 3bc76bb113a0..953744daff7c 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -203,11 +203,6 @@ config BLK_MQ_PCI
depends on BLOCK && PCI
default y
-config BLK_MQ_VIRTIO
- bool
- depends on BLOCK && VIRTIO
- default y
-
config BLK_MQ_RDMA
bool
depends on BLOCK && INFINIBAND
diff --git a/block/Makefile b/block/Makefile
index 1a43750f4b01..709695f54150 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_BLK_CMDLINE_PARSER) += cmdline-parser.o
obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o
obj-$(CONFIG_BLK_DEV_INTEGRITY_T10) += t10-pi.o
obj-$(CONFIG_BLK_MQ_PCI) += blk-mq-pci.o
-obj-$(CONFIG_BLK_MQ_VIRTIO) += blk-mq-virtio.o
obj-$(CONFIG_BLK_MQ_RDMA) += blk-mq-rdma.o
obj-$(CONFIG_BLK_DEV_ZONED) += blk-zoned.o
obj-$(CONFIG_BLK_WBT) += blk-wbt.o
diff --git a/block/blk-mq-virtio.c b/block/blk-mq-virtio.c
deleted file mode 100644
index 488341628256..000000000000
--- a/block/blk-mq-virtio.c
+++ /dev/null
@@ -1,46 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2016 Christoph Hellwig.
- */
-#include <linux/device.h>
-#include <linux/blk-mq.h>
-#include <linux/blk-mq-virtio.h>
-#include <linux/virtio_config.h>
-#include <linux/module.h>
-#include "blk-mq.h"
-
-/**
- * blk_mq_virtio_map_queues - provide a default queue mapping for virtio device
- * @qmap: CPU to hardware queue map.
- * @vdev: virtio device to provide a mapping for.
- * @first_vec: first interrupt vectors to use for queues (usually 0)
- *
- * This function assumes the virtio device @vdev has at least as many available
- * interrupt vetors as @set has queues. It will then queuery the vector
- * corresponding to each queue for it's affinity mask and built queue mapping
- * that maps a queue to the CPUs that have irq affinity for the corresponding
- * vector.
- */
-int blk_mq_virtio_map_queues(struct blk_mq_queue_map *qmap,
- struct virtio_device *vdev, int first_vec)
-{
- const struct cpumask *mask;
- unsigned int queue, cpu;
-
- if (!vdev->config->get_vq_affinity)
- goto fallback;
-
- for (queue = 0; queue < qmap->nr_queues; queue++) {
- mask = vdev->config->get_vq_affinity(vdev, first_vec + queue);
- if (!mask)
- goto fallback;
-
- for_each_cpu(cpu, mask)
- qmap->mq_map[cpu] = qmap->queue_offset + queue;
- }
-
- return 0;
-fallback:
- return blk_mq_map_queues(qmap);
-}
-EXPORT_SYMBOL_GPL(blk_mq_virtio_map_queues);
diff --git a/include/linux/blk-mq-virtio.h b/include/linux/blk-mq-virtio.h
index 687ae287e1dc..b3ddb8b6da76 100644
--- a/include/linux/blk-mq-virtio.h
+++ b/include/linux/blk-mq-virtio.h
@@ -1,11 +1,46 @@
/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2016 Christoph Hellwig.
+ */
#ifndef _LINUX_BLK_MQ_VIRTIO_H
#define _LINUX_BLK_MQ_VIRTIO_H
-struct blk_mq_queue_map;
-struct virtio_device;
+#include <linux/blk-mq.h>
+#include <linux/virtio_config.h>
-int blk_mq_virtio_map_queues(struct blk_mq_queue_map *qmap,
- struct virtio_device *vdev, int first_vec);
+/**
+ * blk_mq_virtio_map_queues - provide a default queue mapping for virtio device
+ * @qmap: CPU to hardware queue map.
+ * @vdev: virtio device to provide a mapping for.
+ * @first_vec: first interrupt vectors to use for queues (usually 0)
+ *
+ * This function assumes the virtio device @vdev has at least as many available
+ * interrupt vetors as @set has queues. It will then queuery the vector
+ * corresponding to each queue for it's affinity mask and built queue mapping
+ * that maps a queue to the CPUs that have irq affinity for the corresponding
+ * vector.
+ */
+static inline int blk_mq_virtio_map_queues(struct blk_mq_queue_map *qmap,
+ struct virtio_device *vdev, int first_vec)
+{
+ const struct cpumask *mask;
+ unsigned int queue, cpu;
+
+ if (!vdev->config->get_vq_affinity)
+ goto fallback;
+
+ for (queue = 0; queue < qmap->nr_queues; queue++) {
+ mask = vdev->config->get_vq_affinity(vdev, first_vec + queue);
+ if (!mask)
+ goto fallback;
+
+ for_each_cpu(cpu, mask)
+ qmap->mq_map[cpu] = qmap->queue_offset + queue;
+ }
+
+ return 0;
+fallback:
+ return blk_mq_map_queues(qmap);
+}
#endif /* _LINUX_BLK_MQ_VIRTIO_H */
--
2.25.1.481.gfbce0eb801-goog
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