diff options
Diffstat (limited to 'blockdev.c')
| -rw-r--r-- | blockdev.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/blockdev.c b/blockdev.c index 301039392c..c3f8da4700 100644 --- a/blockdev.c +++ b/blockdev.c @@ -360,9 +360,6 @@ static void extract_common_blockdev_options(QemuOpts *opts, int *bdrv_flags, const char *aio; if (bdrv_flags) { - if (!qemu_opt_get_bool(opts, "read-only", false)) { - *bdrv_flags |= BDRV_O_RDWR; - } if (qemu_opt_get_bool(opts, "copy-on-read", false)) { *bdrv_flags |= BDRV_O_COPY_ON_READ; } @@ -471,7 +468,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts, int bdrv_flags = 0; int on_read_error, on_write_error; bool account_invalid, account_failed; - bool writethrough; + bool writethrough, read_only; BlockBackend *blk; BlockDriverState *bs; ThrottleConfig cfg; @@ -567,6 +564,8 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts, bdrv_flags |= BDRV_O_SNAPSHOT; } + read_only = qemu_opt_get_bool(opts, BDRV_OPT_READ_ONLY, false); + /* init */ if ((!file || !*file) && !qdict_size(bs_opts)) { BlockBackendRootState *blk_rs; @@ -574,7 +573,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts, blk = blk_new(); blk_rs = blk_get_root_state(blk); blk_rs->open_flags = bdrv_flags; - blk_rs->read_only = !(bdrv_flags & BDRV_O_RDWR); + blk_rs->read_only = read_only; blk_rs->detect_zeroes = detect_zeroes; QDECREF(bs_opts); @@ -588,6 +587,8 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts, * Apply the defaults here instead. */ qdict_set_default_str(bs_opts, BDRV_OPT_CACHE_DIRECT, "off"); qdict_set_default_str(bs_opts, BDRV_OPT_CACHE_NO_FLUSH, "off"); + qdict_set_default_str(bs_opts, BDRV_OPT_READ_ONLY, + read_only ? "on" : "off"); assert((bdrv_flags & BDRV_O_CACHE_MASK) == 0); if (runstate_check(RUN_STATE_INMIGRATE)) { @@ -682,6 +683,7 @@ static BlockDriverState *bds_tree_init(QDict *bs_opts, Error **errp) * Apply the defaults here instead. */ qdict_set_default_str(bs_opts, BDRV_OPT_CACHE_DIRECT, "off"); qdict_set_default_str(bs_opts, BDRV_OPT_CACHE_NO_FLUSH, "off"); + qdict_set_default_str(bs_opts, BDRV_OPT_READ_ONLY, "off"); if (runstate_check(RUN_STATE_INMIGRATE)) { bdrv_flags |= BDRV_O_INACTIVE; @@ -4159,10 +4161,6 @@ static QemuOptsList qemu_root_bds_opts = { .type = QEMU_OPT_STRING, .help = "host AIO implementation (threads, native)", },{ - .name = "read-only", - .type = QEMU_OPT_BOOL, - .help = "open drive file as read-only", - },{ .name = "copy-on-read", .type = QEMU_OPT_BOOL, .help = "copy read data from backing file into image file", |