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[Qemu-devel] [PATCH 79/88] block migration: fix return value
From: |
Michael Roth |
Subject: |
[Qemu-devel] [PATCH 79/88] block migration: fix return value |
Date: |
Thu, 8 Jan 2015 11:34:23 -0600 |
From: Gary R Hook <address@hidden>
Modify block_save_iterate() to return positive/zero/negative
(success/not done/failure) return status. The computation of
the blocks transferred (an int64_t) exceeds the size of an
int return value.
Signed-off-by: Gary R Hook <address@hidden>
Reviewed-by: ChenLiang <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
(cherry picked from commit ebd9fbd7e102c533143c2c8372312b75c2b2678a)
Signed-off-by: Michael Roth <address@hidden>
---
block-migration.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/block-migration.c b/block-migration.c
index 73cdd07..2bb98d8 100644
--- a/block-migration.c
+++ b/block-migration.c
@@ -652,6 +652,7 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
{
int ret;
int64_t last_ftell = qemu_ftell(f);
+ int64_t delta_ftell;
DPRINTF("Enter save live iterate submitted %d transferred %d\n",
block_mig_state.submitted, block_mig_state.transferred);
@@ -701,7 +702,14 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
}
qemu_put_be64(f, BLK_MIG_FLAG_EOS);
- return qemu_ftell(f) - last_ftell;
+ delta_ftell = qemu_ftell(f) - last_ftell;
+ if (delta_ftell > 0) {
+ return 1;
+ } else if (delta_ftell < 0) {
+ return -1;
+ } else {
+ return 0;
+ }
}
/* Called with iothread lock taken. */
--
1.9.1
- [Qemu-devel] [PATCH 60/88] virtio-scsi: work around bug in old BIOSes, (continued)
- [Qemu-devel] [PATCH 60/88] virtio-scsi: work around bug in old BIOSes, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 64/88] hw/ide/core.c: Prevent SIGSEGV during migration, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 66/88] block: Make essential BlockDriver objects public, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 63/88] exec: Handle multipage ranges in invalidate_and_set_dirty(), Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 67/88] block: Omit bdrv_find_format for essential drivers, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 65/88] virtio-net: fix unmap leak, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 68/88] block/vvfat: qcow driver may not be found, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 70/88] block: Check create_opts before image creation, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 73/88] iotests: Only kill NBD server if it runs, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 69/88] block/nfs: Add create_opts, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 79/88] block migration: fix return value,
Michael Roth <=
- [Qemu-devel] [PATCH 71/88] qemu-img: Check create_opts before image creation, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 72/88] qemu-img: Check create_opts before image amendment, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 74/88] iotests: Add test for unsupported image creation, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 77/88] qcow2: Respect bdrv_truncate() error, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 80/88] qcow2: Fix header extension size check, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 76/88] qcow2: Flushing the caches in qcow2_close may fail, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 84/88] linuxboot: fix loading old kernels, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 83/88] linuxboot: compute initrd loading address, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 82/88] block: Don't probe for unknown backing file format, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 85/88] audio: Don't free hw resources until after hw backend is stopped, Michael Roth, 2015/01/08