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block: Add .bdrv_truncate() error messages

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Add missing error messages for the block driver implementations of
.bdrv_truncate(); drop the generic one from block.c's bdrv_truncate().

Since one of these changes touches a mis-indented block in
block/file-posix.c, this patch fixes that coding style issue along the
way.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170328205129.15138-5-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 22:51:29 +02:00
parent 4bff28b81a
commit f59adb3256
9 changed files with 34 additions and 10 deletions
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2
block/qcow2.c
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@ -2551,6 +2551,7 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
new_l1_size = size_to_l1(s, offset);
ret = qcow2_grow_l1_table(bs, new_l1_size, true);
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to grow the L1 table");
return ret;
}
@ -2559,6 +2560,7 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size),
&offset, sizeof(uint64_t));
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to update the image size");
return ret;
}