From 08e4ed6cdeeee7912072cf14aa8ab6c60dacb4fb Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 22 Jan 2013 09:03:13 +0100 Subject: 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 Signed-off-by: Kevin Wolf --- blockdev.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'blockdev.c') 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) { -- cgit v1.2.3