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block: Add errp to b{lk,drv}_truncate()

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For one thing, this allows us to drop the error message generation from
qemu-img.c and blockdev.c and instead have it unified in
bdrv_truncate().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170328205129.15138-3-mreitz@redhat.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2017-03-28 22:51:27 +02:00
parent 55b9392b98
commit ed3d2ec98a
22 changed files with 73 additions and 90 deletions
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5
block/block-backend.c
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@ -1746,13 +1746,14 @@ int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
BDRV_REQ_WRITE_COMPRESSED);
}
int blk_truncate(BlockBackend *blk, int64_t offset)
int blk_truncate(BlockBackend *blk, int64_t offset, Error **errp)
{
if (!blk_is_available(blk)) {
error_setg(errp, "No medium inserted");
return -ENOMEDIUM;
}
return bdrv_truncate(blk->root, offset);
return bdrv_truncate(blk->root, offset, errp);
}
static void blk_pdiscard_entry(void *opaque)