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bdev: add bdev_unmap_should_split() function

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Change-Id: I2680eef93da13d8378527349cdc5ba36859f89dc
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7517
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Changpeng Liu 2021-04-21 20:14:39 +08:00 committed by Tomasz Zawadzki
parent d4d5e20d29
commit 4f1530c9eb
1 changed files with 18 additions and 0 deletions
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18
lib/bdev/bdev.c
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@ -2001,6 +2001,22 @@ bdev_rw_should_split(struct spdk_bdev_io *bdev_io)
return false;
}
static bool
bdev_unmap_should_split(struct spdk_bdev_io *bdev_io)
{
uint32_t num_unmap_segments;
if (!bdev_io->bdev->max_unmap || !bdev_io->bdev->max_unmap_segments) {
return false;
}
num_unmap_segments = spdk_divide_round_up(bdev_io->u.bdev.num_blocks, bdev_io->bdev->max_unmap);
if (num_unmap_segments > bdev_io->bdev->max_unmap_segments) {
return true;
}
return false;
}
static bool
bdev_io_should_split(struct spdk_bdev_io *bdev_io)
{
@ -2008,6 +2024,8 @@ bdev_io_should_split(struct spdk_bdev_io *bdev_io)
case SPDK_BDEV_IO_TYPE_READ:
case SPDK_BDEV_IO_TYPE_WRITE:
return bdev_rw_should_split(bdev_io);
case SPDK_BDEV_IO_TYPE_UNMAP:
return bdev_unmap_should_split(bdev_io);
default:
return false;
}