diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/block-backend.c | 6 | ||||
| -rw-r--r-- | block/file-posix.c | 2 | ||||
| -rw-r--r-- | block/io.c | 1 |
3 files changed, 8 insertions, 1 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 6140d133e2..ba2b5ebb10 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1986,6 +1986,12 @@ uint32_t blk_get_max_transfer(BlockBackend *blk) return ROUND_DOWN(max, blk_get_request_alignment(blk)); } +int blk_get_max_hw_iov(BlockBackend *blk) +{ + return MIN_NON_ZERO(blk->root->bs->bl.max_hw_iov, + blk->root->bs->bl.max_iov); +} + int blk_get_max_iov(BlockBackend *blk) { return blk->root->bs->bl.max_iov; diff --git a/block/file-posix.c b/block/file-posix.c index c62e42743d..53be0bdc1b 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -1273,7 +1273,7 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp) ret = hdev_get_max_segments(s->fd, &st); if (ret > 0) { - bs->bl.max_iov = ret; + bs->bl.max_hw_iov = ret; } } } diff --git a/block/io.c b/block/io.c index 18d345a87a..bb0a254def 100644 --- a/block/io.c +++ b/block/io.c @@ -136,6 +136,7 @@ static void bdrv_merge_limits(BlockLimits *dst, const BlockLimits *src) dst->min_mem_alignment = MAX(dst->min_mem_alignment, src->min_mem_alignment); dst->max_iov = MIN_NON_ZERO(dst->max_iov, src->max_iov); + dst->max_hw_iov = MIN_NON_ZERO(dst->max_hw_iov, src->max_hw_iov); } typedef struct BdrvRefreshLimitsState { |