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Re: [Qemu-devel] [PATCH 37/41] block-migration: Switch meaning of return
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 37/41] block-migration: Switch meaning of return value |
Date: |
Fri, 21 Sep 2012 14:51:33 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 |
Il 21/09/2012 10:47, Juan Quintela ha scritto:
> Make consistent the result of blk_mig_save_dirty_block() and
> mig_save_device_dirty()
>
> Signed-off-by: Juan Quintela <address@hidden>
> ---
> block-migration.c | 14 +++++++++-----
> 1 file changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/block-migration.c b/block-migration.c
> index a822bb2..565628f 100644
> --- a/block-migration.c
> +++ b/block-migration.c
> @@ -429,14 +429,18 @@ error:
> return 0;
> }
>
> +/* return value:
> + * 0: too much data for max_downtime
> + * 1: few enough data for max_downtime
> +*/
> static int blk_mig_save_dirty_block(QEMUFile *f, int is_async)
> {
> BlkMigDevState *bmds;
> - int ret = 0;
> + int ret = 1;
>
> QSIMPLEQ_FOREACH(bmds, &block_mig_state.bmds_list, entry) {
> - if (mig_save_device_dirty(f, bmds, is_async) == 0) {
> - ret = 1;
> + ret = mig_save_device_dirty(f, bmds, is_async);
> + if (ret == 0) {
> break;
> }
> }
> @@ -594,7 +598,7 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
> block_mig_state.bulk_completed = 1;
> }
> } else {
> - if (blk_mig_save_dirty_block(f, 1) == 0) {
> + if (blk_mig_save_dirty_block(f, 1) != 0) {
> /* no more dirty blocks */
> break;
> }
> @@ -631,7 +635,7 @@ static int block_save_complete(QEMUFile *f, void *opaque)
> all async read completed */
> assert(block_mig_state.submitted == 0);
>
> - while (blk_mig_save_dirty_block(f, 0) != 0) {
> + while (blk_mig_save_dirty_block(f, 0) == 0) {
> /* Do nothing */
> }
> blk_mig_cleanup();
>
Reviewed-by: Paolo Bonzini <address@hidden>
- Re: [Qemu-devel] [PATCH 31/41] savevm: unfold qemu_fclose_internal(), (continued)
- [Qemu-devel] [PATCH 35/41] buffered_file: buffered_put_buffer() don't need to set last_error, Juan Quintela, 2012/09/21
- [Qemu-devel] [PATCH 37/41] block-migration: Switch meaning of return value, Juan Quintela, 2012/09/21
- Re: [Qemu-devel] [PATCH 37/41] block-migration: Switch meaning of return value,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 34/41] savevm: Only qemu_fflush() can generate errors, Juan Quintela, 2012/09/21
- [Qemu-devel] [PATCH 24/41] buffered_file: callers of buffered_flush() already check for errors, Juan Quintela, 2012/09/21