search for: mempool_create_kmalloc_pool

...ff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 72fe55d..670c28f 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -443,7 +443,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) if (err) goto out_free_vblk; - vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req)); + vblk->pool = mempool_create_kmalloc_pool(1, sizeof(struct virtblk_req)); if (!vblk->pool) { err = -ENOMEM; goto out_free_vq; @@ -576,20 +576,30 @@ static void __devexit virtblk_remove(struct virtio_device *vdev) { struct virtio_blk *vblk = vdev->...

...ff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 72fe55d..670c28f 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -443,7 +443,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) if (err) goto out_free_vblk; - vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req)); + vblk->pool = mempool_create_kmalloc_pool(1, sizeof(struct virtblk_req)); if (!vblk->pool) { err = -ENOMEM; goto out_free_vq; @@ -576,20 +576,30 @@ static void __devexit virtblk_remove(struct virtio_device *vdev) { struct virtio_blk *vblk = vdev->...

...ments + 2 > vblk->sg_elems); + vblk->req_in_flight++; /* If this request fails, stop queue and wait for something to finish to restart it. */ @@ -443,7 +448,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) if (err) goto out_free_vblk; - vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req)); + vblk->pool = mempool_create_kmalloc_pool(1, sizeof(struct virtblk_req)); if (!vblk->pool) { err = -ENOMEM; goto out_free_vq; @@ -466,6 +471,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) virtblk_name_format("vd", inde...

...ments + 2 > vblk->sg_elems); + vblk->req_in_flight++; /* If this request fails, stop queue and wait for something to finish to restart it. */ @@ -443,7 +448,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) if (err) goto out_free_vblk; - vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req)); + vblk->pool = mempool_create_kmalloc_pool(1, sizeof(struct virtblk_req)); if (!vblk->pool) { err = -ENOMEM; goto out_free_vq; @@ -466,6 +471,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) virtblk_name_format("vd", inde...

Hi, Jens & Rusty This version is rebased against linux-next which resolves the conflict with Paolo Bonzini's 'virtio-blk: allow toggling host cache between writeback and writethrough' patch. Patch 1/3 and 2/3 applies on linus's master as well. Since Rusty will pick up patch 3/3 so the changes to block core (adding blk_bio_map_sg()) will have a user. Jens, could you please

Hi, Jens & Rusty This version is rebased against linux-next which resolves the conflict with Paolo Bonzini's 'virtio-blk: allow toggling host cache between writeback and writethrough' patch. Patch 1/3 and 2/3 applies on linus's master as well. Since Rusty will pick up patch 3/3 so the changes to block core (adding blk_bio_map_sg()) will have a user. Jens, could you please

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (2): block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk block/blk-merge.c | 63 ++++++++++++++

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (2): block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk block/blk-merge.c | 63 ++++++++++++++

...s virtqueue with one buffer so the hypervisor can + * use it to signal us later. + */ + sg_init_one(&sg, vblk->stats, sizeof vblk->stats); + if (virtqueue_add_buf(vblk->stats_vq, &sg, 1, 0, vblk) < 0) + BUG(); + virtqueue_kick(vblk->stats_vq); } vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req)); @@ -548,7 +644,7 @@ static const struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX, VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, VIRTIO_BLK_F_SCSI, - VIRTIO_BLK_F_FLUSH, VIRTIO_...

...s virtqueue with one buffer so the hypervisor can + * use it to signal us later. + */ + sg_init_one(&sg, vblk->stats, sizeof vblk->stats); + if (virtqueue_add_buf(vblk->stats_vq, &sg, 1, 0, vblk) < 0) + BUG(); + virtqueue_kick(vblk->stats_vq); } vblk->pool = mempool_create_kmalloc_pool(1,sizeof(struct virtblk_req)); @@ -548,7 +644,7 @@ static const struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX, VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, VIRTIO_BLK_F_SCSI, - VIRTIO_BLK_F_FLUSH, VIRTIO_...

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%, 17%, 21%, 16% 2) Fusion IO device With bio-based IO path, sequential

Hi, all This version reworked on REQ_FLUSH and REQ_FUA support as suggested by Christoph and dropped the block core bits since Jens has picked them up. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%,

Hi, all This version reworked on REQ_FLUSH and REQ_FUA support as suggested by Christoph and dropped the block core bits since Jens has picked them up. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential read/write, random read/write IOPS boost : 28%, 24%, 21%, 16% Latency improvement: 32%,

Hi, all Changes in v7: - Using vbr->flags to trace request type - Dropped unnecessary struct virtio_blk *vblk parameter - Reuse struct virtblk_req in bio done function - Added performance data on normal SATA device and the reason why make it optional Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential

Hi, all Changes in v7: - Using vbr->flags to trace request type - Dropped unnecessary struct virtio_blk *vblk parameter - Reuse struct virtblk_req in bio done function - Added performance data on normal SATA device and the reason why make it optional Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk device With bio-based IO path, sequential

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk

This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16% latency improvement for sequential read/write, random read/write respectively. Asias He (3): block: Introduce __blk_segment_map_sg() helper block: Add blk_bio_map_sg() helper virtio-blk: Add bio-based IO path for virtio-blk

Hi folks, This version added REQ_FLUSH and REQ_FUA support as suggested by Christoph and rebased against latest linus's tree. Jens, could you please consider picking up the dependencies 1/4 and 2/4 in your tree. Thanks! This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk

Hi folks, This version added REQ_FLUSH and REQ_FUA support as suggested by Christoph and rebased against latest linus's tree. Jens, could you please consider picking up the dependencies 1/4 and 2/4 in your tree. Thanks! This patchset implements bio-based IO path for virito-blk to improve performance. Fio test shows bio-based IO path gives the following performance improvement: 1) Ramdisk