diff options
| -rw-r--r-- | qemu-io-cmds.c | 27 | ||||
| -rwxr-xr-x | tests/qemu-iotests/133 | 9 | ||||
| -rw-r--r-- | tests/qemu-iotests/133.out | 8 |
3 files changed, 43 insertions, 1 deletions
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c index 5363482213..c9ae09d574 100644 --- a/qemu-io-cmds.c +++ b/qemu-io-cmds.c @@ -10,6 +10,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" +#include "qapi/qmp/qdict.h" #include "qemu-io.h" #include "sysemu/block-backend.h" #include "block/block.h" @@ -1978,6 +1979,7 @@ static int reopen_f(BlockBackend *blk, int argc, char **argv) int flags = bs->open_flags; bool writethrough = !blk_enable_write_cache(blk); bool has_rw_option = false; + bool has_cache_option = false; BlockReopenQueue *brq; Error *local_err = NULL; @@ -1989,6 +1991,7 @@ static int reopen_f(BlockBackend *blk, int argc, char **argv) error_report("Invalid cache option: %s", optarg); return -EINVAL; } + has_cache_option = true; break; case 'o': if (!qemu_opts_parse_noisily(&reopen_opts, optarg, 0)) { @@ -2046,9 +2049,31 @@ static int reopen_f(BlockBackend *blk, int argc, char **argv) } qopts = qemu_opts_find(&reopen_opts, NULL); - opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL; + opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : qdict_new(); qemu_opts_reset(&reopen_opts); + if (qdict_haskey(opts, BDRV_OPT_READ_ONLY)) { + if (has_rw_option) { + error_report("Cannot set both -r/-w and '" BDRV_OPT_READ_ONLY "'"); + qobject_unref(opts); + return -EINVAL; + } + } else { + qdict_put_bool(opts, BDRV_OPT_READ_ONLY, !(flags & BDRV_O_RDWR)); + } + + if (qdict_haskey(opts, BDRV_OPT_CACHE_DIRECT) || + qdict_haskey(opts, BDRV_OPT_CACHE_NO_FLUSH)) { + if (has_cache_option) { + error_report("Cannot set both -c and the cache options"); + qobject_unref(opts); + return -EINVAL; + } + } else { + qdict_put_bool(opts, BDRV_OPT_CACHE_DIRECT, flags & BDRV_O_NOCACHE); + qdict_put_bool(opts, BDRV_OPT_CACHE_NO_FLUSH, flags & BDRV_O_NO_FLUSH); + } + bdrv_subtree_drained_begin(bs); brq = bdrv_reopen_queue(NULL, bs, opts, flags); bdrv_reopen_multiple(bdrv_get_aio_context(bs), brq, &local_err); diff --git a/tests/qemu-iotests/133 b/tests/qemu-iotests/133 index a9a47a3c36..63b25f394b 100755 --- a/tests/qemu-iotests/133 +++ b/tests/qemu-iotests/133 @@ -91,6 +91,15 @@ echo IMGOPTSSYNTAX=false $QEMU_IO -f null-co -c 'reopen' -c 'info' \ "json:{'driver': 'null-co', 'size': 65536}" +echo +echo "=== Check that mixing -c/-r/-w and their corresponding options is forbidden ===" +echo + +$QEMU_IO -c 'reopen -r -o read-only=on' $TEST_IMG +$QEMU_IO -c 'reopen -w -o read-only=on' $TEST_IMG +$QEMU_IO -c 'reopen -c none -o cache.direct=on' $TEST_IMG +$QEMU_IO -c 'reopen -c writeback -o cache.direct=on' $TEST_IMG +$QEMU_IO -c 'reopen -c directsync -o cache.no-flush=on' $TEST_IMG # success, all done echo "*** done" rm -f $seq.full diff --git a/tests/qemu-iotests/133.out b/tests/qemu-iotests/133.out index f4a85aeb63..48a9d087f0 100644 --- a/tests/qemu-iotests/133.out +++ b/tests/qemu-iotests/133.out @@ -24,4 +24,12 @@ Cannot change the option 'driver' format name: null-co format name: null-co + +=== Check that mixing -c/-r/-w and their corresponding options is forbidden === + +Cannot set both -r/-w and 'read-only' +Cannot set both -r/-w and 'read-only' +Cannot set both -c and the cache options +Cannot set both -c and the cache options +Cannot set both -c and the cache options *** done |