Commit 4f1530c9 authored by Changpeng Liu's avatar Changpeng Liu Committed by Tomasz Zawadzki
Browse files

bdev: add bdev_unmap_should_split() function 



Change-Id: I2680eef93da13d8378527349cdc5ba36859f89dc
Signed-off-by: default avatarChangpeng 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: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
parent d4d5e20d

lib/bdev/bdev.c

+18 −0
Original line number Diff line number Diff line
@@ -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;

	}