Displaying 20 results from an estimated 38 matches for "queue_flag_set_unlock".
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queue_flag_set_unlocked
2013 Nov 20
9
[PATCH RFC 0/3] virtio: add new notify() callback to virtio_driver
Hi,
when an active virtio block device is hot-unplugged from a KVM guest, running
affected guest user applications are not aware of any errors that occur due
to the lost device. This patch-set adds code to avoid further request queueing
when a lost block device is detected, resulting in appropriate error info.
On System z there exists no handshake mechanism between host and guest
when a device
2013 Nov 20
9
[PATCH RFC 0/3] virtio: add new notify() callback to virtio_driver
Hi,
when an active virtio block device is hot-unplugged from a KVM guest, running
affected guest user applications are not aware of any errors that occur due
to the lost device. This patch-set adds code to avoid further request queueing
when a lost block device is detected, resulting in appropriate error info.
On System z there exists no handshake mechanism between host and guest
when a device
2013 Nov 20
0
[PATCH RFC 2/3] virtio_blk: add virtblk_notify() as virtio_driver's notify() callback
...rivers/block/virtio_blk.c
@@ -901,6 +901,19 @@ static void virtblk_remove(struct virtio_device *vdev)
ida_simple_remove(&vd_index_ida, index);
}
+static int virtblk_notify(struct virtio_device *vdev, int event)
+{
+ struct virtio_blk *vblk = vdev->priv;
+
+ if (event == VDEV_GONE) {
+ queue_flag_set_unlocked(QUEUE_FLAG_DYING, vblk->disk->queue);
+ queue_flag_set_unlocked(QUEUE_FLAG_NOMERGES, vblk->disk->queue);
+ queue_flag_set_unlocked(QUEUE_FLAG_NOXMERGES,
+ vblk->disk->queue);
+ }
+ return NOTIFY_DONE;
+}
+
#ifdef CONFIG_PM
static int virtblk_freeze(struct virtio_device *...
2017 Mar 28
6
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...* opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_zeroes_data = 0;
+ q->limits.discard_alignment = blk_size;
+ q->limits.discard_granularity = blk_size;
+ blk_queue_max_discard_sectors(q, UINT_MAX);
+ blk_queue_max_discard_segments(q, 1);
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
virtio_device_ready(vdev);
device_add_disk(&vdev->dev, vblk->disk);
@@ -882,14 +902,14 @@ static int virtblk_restore(struct virtio_device *vdev)
VIRTIO_BLK_F_SCSI,
#endif
VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY, VIRTIO_BLK_F_CONFIG_WCE,
- VIRTI...
2017 Mar 28
6
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...* opt_io_size);
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) {
+ q->limits.discard_zeroes_data = 0;
+ q->limits.discard_alignment = blk_size;
+ q->limits.discard_granularity = blk_size;
+ blk_queue_max_discard_sectors(q, UINT_MAX);
+ blk_queue_max_discard_segments(q, 1);
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
virtio_device_ready(vdev);
device_add_disk(&vdev->dev, vblk->disk);
@@ -882,14 +902,14 @@ static int virtblk_restore(struct virtio_device *vdev)
VIRTIO_BLK_F_SCSI,
#endif
VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY, VIRTIO_BLK_F_CONFIG_WCE,
- VIRTI...
2011 Sep 01
9
[PATCH V4 0/3] xen-blkfront/blkback discard support
Dear list,
This is the V4 of the trim support for xen-blkfront/blkback,
Now we move BLKIF_OP_TRIM to BLKIF_OP_DISCARD, and dropped all
"trim" stuffs in the patches, and use "discard" instead.
Also we updated the helpers of blkif_x86_{32|64}_request or we
will meet problems using a non-native protocol.
And this patch has been tested with both SSD and raw file,
with SSD we will
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...eg, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_max_discard_sectors(q, -1U);
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_num, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, 256);
+
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
virtio_device_ready(vdev);
device_add_disk(&vdev->dev, vblk->disk);
@@ -874,14 +944,14 @@ static int virtblk_restore(struct virtio_device *vdev)
VIRTIO_BLK_F_SCSI,
#endif
VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY, VIRTIO_BLK_F_CONFIG_WCE,
- VIRTI...
2017 Jul 05
3
[PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
...eg, &v);
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_max_discard_sectors(q, -1U);
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_num, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, 256);
+
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
virtio_device_ready(vdev);
device_add_disk(&vdev->dev, vblk->disk);
@@ -874,14 +944,14 @@ static int virtblk_restore(struct virtio_device *vdev)
VIRTIO_BLK_F_SCSI,
#endif
VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY, VIRTIO_BLK_F_CONFIG_WCE,
- VIRTI...
2017 Mar 28
1
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...F_DISCARD)) {
> > + q->limits.discard_zeroes_data = 0;
> > + q->limits.discard_alignment = blk_size;
> > + q->limits.discard_granularity = blk_size;
> > + blk_queue_max_discard_sectors(q, UINT_MAX);
> > + blk_queue_max_discard_segments(q, 1);
> > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
> > + }
>
> Please add configuration space fields for these limits. Looking at the
> virtio-scsi block limits code in QEMU's scsi_disk_emulate_inquiry() I
> can see that the hypervisor has useful values that it wants to
> communicate. They shoul...
2017 Mar 28
1
[PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...F_DISCARD)) {
> > + q->limits.discard_zeroes_data = 0;
> > + q->limits.discard_alignment = blk_size;
> > + q->limits.discard_granularity = blk_size;
> > + blk_queue_max_discard_sectors(q, UINT_MAX);
> > + blk_queue_max_discard_segments(q, 1);
> > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
> > + }
>
> Please add configuration space fields for these limits. Looking at the
> virtio-scsi block limits code in QEMU's scsi_disk_emulate_inquiry() I
> can see that the hypervisor has useful values that it wants to
> communicate. They shoul...
2016 Aug 17
0
[PATCH 11/15] zram: Pass attribute group to device_add_disk
...ons(-)
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 20920a2..2331788 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1298,13 +1298,10 @@ static int zram_add(void)
zram->disk->queue->limits.discard_zeroes_data = 0;
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, zram->disk->queue);
- device_add_disk(NULL, zram->disk, NULL);
+ ret = device_add_disk(NULL, zram->disk, &zram_disk_attr_group);
- ret = sysfs_create_group(&disk_to_dev(zram->disk)->kobj,
- &zram_disk_attr_group);
if (ret < 0) {
- pr_...
2016 Aug 18
1
[PATCH 11/15] zram: Pass attribute group to device_add_disk
...lock/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
> index 20920a2..2331788 100644
> --- a/drivers/block/zram/zram_drv.c
> +++ b/drivers/block/zram/zram_drv.c
> @@ -1298,13 +1298,10 @@ static int zram_add(void)
> zram->disk->queue->limits.discard_zeroes_data = 0;
> queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, zram->disk->queue);
>
> - device_add_disk(NULL, zram->disk, NULL);
> + ret = device_add_disk(NULL, zram->disk, &zram_disk_attr_group);
>
> - ret = sysfs_create_group(&disk_to_dev(zram->disk)->kobj,
> - &zram_disk_attr_grou...
2017 Mar 27
0
[virtio-dev] [PATCH] virtio-blk: add DISCARD support to virtio-blk driver
...ta = 0;
Maybe you could use another feature bit to populate discard_zeroes_data.
Paolo
> + q->limits.discard_alignment = blk_size;
> + q->limits.discard_granularity = blk_size;
> + blk_queue_max_discard_sectors(q, UINT_MAX);
> + blk_queue_max_discard_segments(q, 1);
> + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
> + }
> +
2016 Aug 18
1
[PATCH 11/15] zram: Pass attribute group to device_add_disk
...lock/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
> index 20920a2..2331788 100644
> --- a/drivers/block/zram/zram_drv.c
> +++ b/drivers/block/zram/zram_drv.c
> @@ -1298,13 +1298,10 @@ static int zram_add(void)
> zram->disk->queue->limits.discard_zeroes_data = 0;
> queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, zram->disk->queue);
>
> - device_add_disk(NULL, zram->disk, NULL);
> + ret = device_add_disk(NULL, zram->disk, &zram_disk_attr_group);
>
> - ret = sysfs_create_group(&disk_to_dev(zram->disk)->kobj,
> - &zram_disk_attr_grou...
2009 Sep 21
0
[PATCH 6/6] virtio_blk: revert QUEUE_FLAG_VIRT addition
...=======================
--- linux-2.6.orig/drivers/block/virtio_blk.c 2009-09-04 17:33:48.802523987 -0300
+++ linux-2.6/drivers/block/virtio_blk.c 2009-09-04 17:33:56.186522158 -0300
@@ -314,7 +314,6 @@ static int __devinit virtblk_probe(struc
}
vblk->disk->queue->queuedata = vblk;
- queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue);
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
2009 Sep 28
0
[PATCH] virtio_blk: revert QUEUE_FLAG_VIRT addition
...=======================
--- linux-2.6.orig/drivers/block/virtio_blk.c 2009-09-04 17:33:48.802523987 -0300
+++ linux-2.6/drivers/block/virtio_blk.c 2009-09-04 17:33:56.186522158 -0300
@@ -314,7 +314,6 @@ static int __devinit virtblk_probe(struc
}
vblk->disk->queue->queuedata = vblk;
- queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue);
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
2009 Sep 21
0
[PATCH 6/6] virtio_blk: revert QUEUE_FLAG_VIRT addition
...=======================
--- linux-2.6.orig/drivers/block/virtio_blk.c 2009-09-04 17:33:48.802523987 -0300
+++ linux-2.6/drivers/block/virtio_blk.c 2009-09-04 17:33:56.186522158 -0300
@@ -314,7 +314,6 @@ static int __devinit virtblk_probe(struc
}
vblk->disk->queue->queuedata = vblk;
- queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue);
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
2009 Sep 28
0
[PATCH] virtio_blk: revert QUEUE_FLAG_VIRT addition
...=======================
--- linux-2.6.orig/drivers/block/virtio_blk.c 2009-09-04 17:33:48.802523987 -0300
+++ linux-2.6/drivers/block/virtio_blk.c 2009-09-04 17:33:56.186522158 -0300
@@ -314,7 +314,6 @@ static int __devinit virtblk_probe(struc
}
vblk->disk->queue->queuedata = vblk;
- queue_flag_set_unlocked(QUEUE_FLAG_VIRT, vblk->disk->queue);
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...;
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_max_discard_sectors(q, UINT_MAX);
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, USHRT_MAX);
+
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
+ virtio_cread(vdev, struct virtio_blk_config, max_write_zeroes_sectors, &v);
+ if (v)
+ blk_queue_max_write_zeroes_sectors(q, v);
+ else
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX);
+ }
+...
2018 Mar 30
2
[PATCH v3] virtio_blk: add DISCARD and WRIET ZEROES command support
...;
+ if (v)
+ blk_queue_max_discard_sectors(q, v);
+ else
+ blk_queue_max_discard_sectors(q, UINT_MAX);
+
+ virtio_cread(vdev, struct virtio_blk_config, max_discard_seg, &v);
+ if (v)
+ blk_queue_max_discard_segments(q, v);
+ else
+ blk_queue_max_discard_segments(q, USHRT_MAX);
+
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+ }
+
+ if (virtio_has_feature(vdev, VIRTIO_BLK_F_WRITE_ZEROES)) {
+ virtio_cread(vdev, struct virtio_blk_config, max_write_zeroes_sectors, &v);
+ if (v)
+ blk_queue_max_write_zeroes_sectors(q, v);
+ else
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX);
+ }
+...