motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-01 23:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

block/export: Move refcount from NBDExport to BlockExport

Browse source 
Having a refcount makes sense for all types of block exports. It is also
a prerequisite for keeping a list of all exports at the BlockExport
level.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200924152717.287415-14-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2020-09-24 17:26:59 +02:00
parent dbc9e94a23
commit c69de1bef5
5 changed files with 64 additions and 43 deletions
Download patch file Download diff file Expand all files Collapse all files

15
include/block/export.h
View file

@ -24,12 +24,27 @@ typedef struct BlockExportDriver {
/* Creates and starts a new block export */
BlockExport *(*create)(BlockExportOptions *, Error **);
/*
* Frees a removed block export. This function is only called after all
* references have been dropped.
*/
void (*delete)(BlockExport *);
} BlockExportDriver;
struct BlockExport {
const BlockExportDriver *drv;
/*
* Reference count for this block export. This includes strong references
* both from the owner (qemu-nbd or the monitor) and clients connected to
* the export.
*/
int refcount;
};
BlockExport *blk_exp_add(BlockExportOptions *export, Error **errp);
void blk_exp_ref(BlockExport *exp);
void blk_exp_unref(BlockExport *exp);
#endif