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block/qapi: explicitly warn if !has_full_backing_filename

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Disambiguate "Backing filename and full backing filename are equivalent"
from "full backing filename could not be determined."

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1450122916-4706-4-git-send-email-jsnow@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
John Snow 2015-12-14 14:55:14 -05:00 committed by Max Reitz
parent 12dcb1c018
commit 5c9d9ca597
1 changed files with 4 additions and 3 deletions
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7
block/qapi.c
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@ -677,9 +677,10 @@ void bdrv_image_info_dump(fprintf_function func_fprintf, void *f,
if (info->has_backing_filename) {
func_fprintf(f, "backing file: %s", info->backing_filename);
if (info->has_full_backing_filename &&
(strcmp(info->backing_filename,
info->full_backing_filename) != 0)) {
if (!info->has_full_backing_filename) {
func_fprintf(f, " (cannot determine actual path)");
} else if (strcmp(info->backing_filename,
info->full_backing_filename) != 0) {
func_fprintf(f, " (actual path: %s)", info->full_backing_filename);
}
func_fprintf(f, "\n");