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block: Image file option amendment

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This patch adds the "amend" option to qemu-img which allows changing
image options on existing image files. It also adds the generic bdrv
implementation which is basically just a wrapper for the image format
specific function.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-09-03 10:09:50 +02:00 • committed by Kevin Wolf
parent 56e023af80
commit 6f176b48f9
6 changed files with 108 additions and 0 deletions
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2
include/block/block.h
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@ -241,6 +241,8 @@ typedef enum {
int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix);
int bdrv_amend_options(BlockDriverState *bs_new, QEMUOptionParameter *options);
/* async block I/O */
typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector,
int sector_num);

3
include/block/block_int.h
View file

@ -188,6 +188,9 @@ struct BlockDriver {
int (*bdrv_check)(BlockDriverState* bs, BdrvCheckResult *result,
BdrvCheckMode fix);
int (*bdrv_amend_options)(BlockDriverState *bs,
QEMUOptionParameter *options);
void (*bdrv_debug_event)(BlockDriverState *bs, BlkDebugEvent event);
/* TODO Better pass a option string/QDict/QemuOpts to add any rule? */