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bdev_aio: enable double buffering on write path

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Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I621a8a3891c8f3829564940219c70c6520c6f9c7
Reviewed-on: https://review.gerrithub.io/427899
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Piotr Pelplinski 2018-10-03 15:32:00 +02:00 committed by Ben Walker
parent 807c3a2b27
commit 17d652d720
1 changed files with 25 additions and 15 deletions
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40
lib/bdev/aio/bdev_aio.c
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@ -324,24 +324,17 @@ bdev_aio_reset(struct file_disk *fdisk, struct bdev_aio_task *aio_task)
}
static void bdev_aio_get_buf_cb(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
{
bdev_aio_readv((struct file_disk *)bdev_io->bdev->ctxt,
ch,
(struct bdev_aio_task *)bdev_io->driver_ctx,
bdev_io->u.bdev.iovs,
bdev_io->u.bdev.iovcnt,
bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen,
bdev_io->u.bdev.offset_blocks * bdev_io->bdev->blocklen);
}
static int _bdev_aio_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
{
switch (bdev_io->type) {
case SPDK_BDEV_IO_TYPE_READ:
spdk_bdev_io_get_buf(bdev_io, bdev_aio_get_buf_cb,
bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen);
return 0;
bdev_aio_readv((struct file_disk *)bdev_io->bdev->ctxt,
ch,
(struct bdev_aio_task *)bdev_io->driver_ctx,
bdev_io->u.bdev.iovs,
bdev_io->u.bdev.iovcnt,
bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen,
bdev_io->u.bdev.offset_blocks * bdev_io->bdev->blocklen);
break;
case SPDK_BDEV_IO_TYPE_WRITE:
bdev_aio_writev((struct file_disk *)bdev_io->bdev->ctxt,
ch,
@ -350,6 +343,23 @@ static int _bdev_aio_submit_request(struct spdk_io_channel *ch, struct spdk_bdev
bdev_io->u.bdev.iovcnt,
bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen,
bdev_io->u.bdev.offset_blocks * bdev_io->bdev->blocklen);
break;
default:
SPDK_ERRLOG("Wrong io type\n");
break;
}
}
static int _bdev_aio_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
{
switch (bdev_io->type) {
/* Read and write operations must be performed on buffers aligned to
* bdev->required_alignment. If user specified unaligned buffers,
* get the aligned buffer from the pool by calling spdk_bdev_io_get_buf. */
case SPDK_BDEV_IO_TYPE_READ:
case SPDK_BDEV_IO_TYPE_WRITE:
spdk_bdev_io_get_buf(bdev_io, bdev_aio_get_buf_cb,
bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen);
return 0;
case SPDK_BDEV_IO_TYPE_FLUSH:
bdev_aio_flush((struct file_disk *)bdev_io->bdev->ctxt,