Il 18/04/2012 14:35, Kevin Wolf ha scritto:
> To be used as in 'qemu-io -t writeback test.img'
>
> Signed-off-by: Kevin Wolf <kw...@redhat.com>
> ---
> qemu-io.c | 10 +++++++++-
> 1 files changed, 9 insertions(+), 1 deletions(-)
>
> diff --git a/qemu-io.c b/qemu-io.c
> index e6fcd77..3095a22 100644
> --- a/qemu-io.c
> +++ b/qemu-io.c
> @@ -1784,6 +1784,7 @@ static void usage(const char *name)
> " -g, --growable allow file to grow (only applies to protocols)\n"
> " -m, --misalign misalign allocations for O_DIRECT\n"
> " -k, --native-aio use kernel AIO implementation (on Linux only)\n"
> +" -t, --cache=MODE use the given cache mode for the image\n"
> " -T, --trace FILE enable trace events listed in the given file\n"
> " -h, --help display this help and exit\n"
> " -V, --version output version information and exit\n"
> @@ -1796,7 +1797,7 @@ int main(int argc, char **argv)
> {
> int readonly = 0;
> int growable = 0;
> - const char *sopt = "hVc:rsnmgkT:";
> + const char *sopt = "hVc:rsnmgkt:T:";
> const struct option lopt[] = {
> { "help", 0, NULL, 'h' },
> { "version", 0, NULL, 'V' },
> @@ -1808,6 +1809,7 @@ int main(int argc, char **argv)
> { "misalign", 0, NULL, 'm' },
> { "growable", 0, NULL, 'g' },
> { "native-aio", 0, NULL, 'k' },
> + { "cache", 1, NULL, 't' },
> { "trace", 1, NULL, 'T' },
> { NULL, 0, NULL, 0 }
> };
> @@ -1840,6 +1842,12 @@ int main(int argc, char **argv)
> case 'k':
> flags |= BDRV_O_NATIVE_AIO;
> break;
> + case 't':
> + if (bdrv_parse_cache_flags(optarg, &flags) < 0) {
> + error_report("Invalid cache option: %s", optarg);
> + exit(1);
> + }
> + break;
> case 'T':
> if (!trace_backend_init(optarg, NULL)) {
> exit(1); /* error message will have been printed */
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
