From 006e1962449f8ea9f0822b838d9fdf13c98eb147 Mon Sep 17 00:00:00 2001 From: "Denis V. Lunev" Date: Wed, 17 Aug 2022 10:37:35 +0200 Subject: [PATCH] block: use bdrv_is_sg() helper instead of raw bs->sg reading I believe that if the helper exists, it must be used always for reading of the value. It breaks expectations in the other case. Signed-off-by: Denis V. Lunev CC: Kevin Wolf CC: Hanna Reitz CC: Stefan Hajnoczi CC: Fam Zheng CC: Ronnie Sahlberg CC: Paolo Bonzini CC: Peter Lieven CC: Vladimir Sementsov-Ogievskiy Message-Id: <20220817083736.40981-2-den@openvz.org> Reviewed-by: Kevin Wolf Reviewed-by: Vladimir Sementsov-Ogievskiy Signed-off-by: Kevin Wolf --- block/file-posix.c | 2 +- block/iscsi.c | 2 +- block/raw-format.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/block/file-posix.c b/block/file-posix.c index 48cd096624..256de1f456 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -1295,7 +1295,7 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp) } #endif - if (bs->sg || S_ISBLK(st.st_mode)) { + if (bdrv_is_sg(bs) || S_ISBLK(st.st_mode)) { int ret = hdev_get_max_hw_transfer(s->fd, &st); if (ret > 0 && ret <= BDRV_REQUEST_MAX_BYTES) { diff --git a/block/iscsi.c b/block/iscsi.c index d707d0b354..612de127e5 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -2065,7 +2065,7 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp) uint64_t max_xfer_len = iscsilun->use_16_for_rw ? 0xffffffff : 0xffff; unsigned int block_size = MAX(BDRV_SECTOR_SIZE, iscsilun->block_size); - assert(iscsilun->block_size >= BDRV_SECTOR_SIZE || bs->sg); + assert(iscsilun->block_size >= BDRV_SECTOR_SIZE || bdrv_is_sg(bs)); bs->bl.request_alignment = block_size; diff --git a/block/raw-format.c b/block/raw-format.c index 69fd650eaf..c7278e348e 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -463,7 +463,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, return -EINVAL; } - bs->sg = bs->file->bs->sg; + bs->sg = bdrv_is_sg(bs->file->bs); bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED | (BDRV_REQ_FUA & bs->file->bs->supported_write_flags); bs->supported_zero_flags = BDRV_REQ_WRITE_UNCHANGED | @@ -489,7 +489,7 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, return ret; } - if (bs->sg && (s->offset || s->has_size)) { + if (bdrv_is_sg(bs) && (s->offset || s->has_size)) { error_setg(errp, "Cannot use offset/size with SCSI generic devices"); return -EINVAL; }