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block: Add hint to -EFBIG error message 

The limit of qcow2 files at least depends on the cluster size. If the
image format has a cluster_size option, suggest to increase it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2013-05-14 16:14:34 +02:00 committed by Stefan Hajnoczi
parent 2cf7cfa1cd
commit f3f4d2c09b
1 changed files with 6 additions and 2 deletions
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8
block.c
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@ -4857,8 +4857,12 @@ void bdrv_img_create(const char *filename, const char *fmt,
error_setg(errp,"Formatting or formatting option not supported for " error_setg(errp,"Formatting or formatting option not supported for "
"file format '%s'", fmt); "file format '%s'", fmt);
} else if (ret == -EFBIG) { } else if (ret == -EFBIG) {
error_setg(errp, "The image size is too large for file format '%s'", const char *cluster_size_hint = "";
fmt); if (get_option_parameter(create_options, BLOCK_OPT_CLUSTER_SIZE)) {
cluster_size_hint = " (try using a larger cluster size)";
}
error_setg(errp, "The image size is too large for file format '%s'%s",
fmt, cluster_size_hint);
} else { } else {
error_setg(errp, "%s: error while creating %s: %s", filename, fmt, error_setg(errp, "%s: error while creating %s: %s", filename, fmt,
strerror(-ret)); strerror(-ret));