[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH RESEND 27/50] blockdev: Check BB validity in blockde
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH RESEND 27/50] blockdev: Check BB validity in blockdev-backup |
Date: |
Tue, 27 Jan 2015 14:46:00 -0500 |
Call blk_is_available() before using blk_bs() to obtain the root
BlockDriverState behind the BlockBackend.
Signed-off-by: Max Reitz <address@hidden>
---
blockdev.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 9476c72..e335d06 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2452,6 +2452,7 @@ void qmp_blockdev_backup(const char *device, const char
*target,
BlockdevOnError on_target_error,
Error **errp)
{
+ BlockBackend *blk;
BlockDriverState *bs;
BlockDriverState *target_bs;
Error *local_err = NULL;
@@ -2467,15 +2468,21 @@ void qmp_blockdev_backup(const char *device, const char
*target,
on_target_error = BLOCKDEV_ON_ERROR_REPORT;
}
- bs = bdrv_find(device);
- if (!bs) {
+ blk = blk_by_name(device);
+ if (!blk) {
error_set(errp, QERR_DEVICE_NOT_FOUND, device);
return;
}
- aio_context = bdrv_get_aio_context(bs);
+ aio_context = blk_get_aio_context(blk);
aio_context_acquire(aio_context);
+ if (!blk_is_available(blk)) {
+ error_set(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
+ goto out;
+ }
+ bs = blk_bs(blk);
+
target_bs = bdrv_find(target);
if (!target_bs) {
error_set(errp, QERR_DEVICE_NOT_FOUND, target);
--
2.1.0
- Re: [Qemu-devel] [PATCH RESEND 19/50] blockdev: Use BlockBackend for blockdev-backup TA, (continued)
- [Qemu-devel] [PATCH RESEND 15/50] block: Fail requests to empty BlockBackend, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 21/50] blockdev: Check BB validity in internal snapshot TA, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 25/50] blockdev: Check BB validity in block-commit, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 26/50] blockdev: Check BB validity in drive-backup, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 27/50] blockdev: Check BB validity in blockdev-backup,
Max Reitz <=
- [Qemu-devel] [PATCH RESEND 29/50] blockdev: Check BB validity in find_block_job(), Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 23/50] blockdev: Catch NULL BDS in block_set_io_throttle, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 30/50] blockdev: Check BB validity in change-backing-file, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 28/50] blockdev: Check BB validity in drive-mirror, Max Reitz, 2015/01/27
- [Qemu-devel] [PATCH RESEND 31/50] block: Add blk_insert_bs(), Max Reitz, 2015/01/27