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block: Allow drivers to control protocol prefix at creation

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This patch is pure refactoring: instead of hard-coding permission to
use a protocol prefix when creating an image, the drivers can now pass
in a parameter, comparable to what they could already do for opening a
pre-existing image.  This patch is purely mechanical (all drivers pass
in true for now), but it will enable the next patch to cater to
drivers that want to differ in behavior for the primary image vs. any
secondary images that are opened at the same time as creating the
primary image.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20250915213919.3121401-5-eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Eric Blake 2025-09-15 16:37:26 -05:00 • committed by Kevin Wolf
parent 67685a2331
commit 1bd7bfbc2b
12 changed files with 15 additions and 14 deletions
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4
block.c
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@ -693,7 +693,7 @@ out:
}
int coroutine_fn bdrv_co_create_file(const char *filename, QemuOpts *opts,
Error **errp)
bool allow_protocol_prefix, Error **errp)
{
QemuOpts *protocol_opts;
BlockDriver *drv;
@ -702,7 +702,7 @@ int coroutine_fn bdrv_co_create_file(const char *filename, QemuOpts *opts,
GLOBAL_STATE_CODE();
drv = bdrv_find_protocol(filename, true, errp);
drv = bdrv_find_protocol(filename, allow_protocol_prefix, errp);
if (drv == NULL) {
return -ENOENT;
}