Commit e6993554 authored by Ziye Yang's avatar Ziye Yang Committed by Tomasz Zawadzki
Browse files

bdev/rbd: Still use rbd_aio_read/write if iovcnt=1 



In most cases, there is single element for iov array,
so using rbd_aio_read/write is enough.

Signed-off-by: default avatarZiye Yang <ziye.yang@intel.com>
Change-Id: Id3ccbb4a4ff10be9d4546c8e89e6dc596d0f3a72
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4122


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
parent 90477acc

module/bdev/rbd/bdev_rbd.c

+11 −2
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ 
#include "spdk/json.h"

#include "spdk/string.h"

#include "spdk/util.h"

#include "spdk/likely.h"



#include "spdk/bdev_module.h"

#include "spdk_internal/log.h"
@@ -255,9 +256,17 @@ bdev_rbd_start_aio(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io, 
	if (bdev_io->type == SPDK_BDEV_IO_TYPE_READ) {

		rbd_io = (struct bdev_rbd_io *)bdev_io->driver_ctx;

		rbd_io->total_len = len;

		if (spdk_likely(iovcnt == 1)) {

			ret = rbd_aio_read(image, offset, iov[0].iov_len, iov[0].iov_base, comp);

		} else {

			ret = rbd_aio_readv(image, iov, iovcnt, offset, comp);

		}

	} else if (bdev_io->type == SPDK_BDEV_IO_TYPE_WRITE) {

		if (spdk_likely(iovcnt == 1)) {

			ret = rbd_aio_write(image, offset, iov[0].iov_len, iov[0].iov_base, comp);

		} else {

			ret = rbd_aio_writev(image, iov, iovcnt, offset, comp);

		}

	} else if (bdev_io->type == SPDK_BDEV_IO_TYPE_FLUSH) {

		ret = rbd_aio_flush(image, comp);

	}