diff options
| author | Fam Zheng <famz@redhat.com> | 2018-07-27 11:34:01 +0800 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-07-30 15:35:37 +0200 |
| commit | e11ce12f5eb26438419e486a3ae2c9bb58a23c1f (patch) | |
| tree | f48973a26c066ecbdf2d7264544aa0a6c7af99a2 /qemu-img.c | |
| parent | b85504314ffb0b33707559b483143b7e8121e003 (diff) | |
qemu-img: Add -C option for convert with copy offloading
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-img.c')
| -rw-r--r-- | qemu-img.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/qemu-img.c b/qemu-img.c index 9b7506b8ae..1acddf693c 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -2024,11 +2024,12 @@ static int img_convert(int argc, char **argv) skip_create = false, progress = false, tgt_image_opts = false; int64_t ret = -EINVAL; bool force_share = false; + bool explict_min_sparse = false; ImgConvertState s = (ImgConvertState) { /* Need at least 4k of zeros for sparse detection */ .min_sparse = 8, - .copy_range = true, + .copy_range = false, .buf_sectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE, .wr_in_order = true, .num_coroutines = 8, @@ -2043,7 +2044,7 @@ static int img_convert(int argc, char **argv) {"target-image-opts", no_argument, 0, OPTION_TARGET_IMAGE_OPTS}, {0, 0, 0, 0} }; - c = getopt_long(argc, argv, ":hf:O:B:co:l:S:pt:T:qnm:WU", + c = getopt_long(argc, argv, ":hf:O:B:Cco:l:S:pt:T:qnm:WU", long_options, NULL); if (c == -1) { break; @@ -2067,9 +2068,11 @@ static int img_convert(int argc, char **argv) case 'B': out_baseimg = optarg; break; + case 'C': + s.copy_range = true; + break; case 'c': s.compressed = true; - s.copy_range = false; break; case 'o': if (!is_valid_option_list(optarg)) { @@ -2112,7 +2115,7 @@ static int img_convert(int argc, char **argv) } s.min_sparse = sval / BDRV_SECTOR_SIZE; - s.copy_range = false; + explict_min_sparse = true; break; } case 'p': @@ -2172,6 +2175,16 @@ static int img_convert(int argc, char **argv) goto fail_getopt; } + if (s.compressed && s.copy_range) { + error_report("Cannot enable copy offloading when -c is used"); + goto fail_getopt; + } + + if (explict_min_sparse && s.copy_range) { + error_report("Cannot enable copy offloading when -S is used"); + goto fail_getopt; + } + if (tgt_image_opts && !skip_create) { error_report("--target-image-opts requires use of -n flag"); goto fail_getopt; |