diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-01-22 09:03:13 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2013-01-25 18:18:34 +0100 |
| commit | 08e4ed6cdeeee7912072cf14aa8ab6c60dacb4fb (patch) | |
| tree | 476d2229546a51ab953db9d1622ae7ffa72f82f1 /blockdev.c | |
| parent | bd48bde8f0fa08dfc8edcafc2bc8aa6d43734463 (diff) | |
| download | qemu-08e4ed6cdeeee7912072cf14aa8ab6c60dacb4fb.zip | |
mirror: add buf-size argument to drive-mirror
This makes sense when the next commit starts using the extra buffer space
to perform many I/O operations asynchronously.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'blockdev.c')
| -rw-r--r-- | blockdev.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/blockdev.c b/blockdev.c index 07fd3273ed..ad25b9b86e 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1188,12 +1188,15 @@ void qmp_block_commit(const char *device, drive_get_ref(drive_get_by_blockdev(bs)); } +#define DEFAULT_MIRROR_BUF_SIZE (10 << 20) + void qmp_drive_mirror(const char *device, const char *target, bool has_format, const char *format, enum MirrorSyncMode sync, bool has_mode, enum NewImageMode mode, bool has_speed, int64_t speed, bool has_granularity, uint32_t granularity, + bool has_buf_size, int64_t buf_size, bool has_on_source_error, BlockdevOnError on_source_error, bool has_on_target_error, BlockdevOnError on_target_error, Error **errp) @@ -1222,6 +1225,10 @@ void qmp_drive_mirror(const char *device, const char *target, if (!has_granularity) { granularity = 0; } + if (!has_buf_size) { + buf_size = DEFAULT_MIRROR_BUF_SIZE; + } + if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) { error_set(errp, QERR_INVALID_PARAMETER, device); return; @@ -1311,7 +1318,7 @@ void qmp_drive_mirror(const char *device, const char *target, return; } - mirror_start(bs, target_bs, speed, granularity, sync, + mirror_start(bs, target_bs, speed, granularity, buf_size, sync, on_source_error, on_target_error, block_job_cb, bs, &local_err); if (local_err != NULL) { |