@@ -37,7 +37,7 @@ typedef struct CommitBlockJob {
BlockBackend *top;
BlockBackend *base;
BlockdevOnError on_error;
- int base_flags;
+ bool base_read_only;
char *backing_file_str;
} CommitBlockJob;
@@ -105,8 +105,8 @@ static void commit_complete(Job *job, void *opaque)
/* restore base open flags here if appropriate (e.g., change the base back
* to r/o). These reopens do not need to be atomic, since we won't abort
* even on failure here */
- if (s->base_flags != bdrv_get_flags(base)) {
- bdrv_reopen(base, s->base_flags, NULL);
+ if (s->base_read_only) {
+ bdrv_reopen_set_read_only(base, true, NULL);
}
g_free(s->backing_file_str);
blk_unref(s->top);
@@ -265,7 +265,6 @@ void commit_start(const char *job_id, BlockDriverState *bs,
const char *filter_node_name, Error **errp)
{
CommitBlockJob *s;
- int orig_base_flags;
BlockDriverState *iter;
BlockDriverState *commit_top_bs = NULL;
Error *local_err = NULL;
@@ -284,11 +283,9 @@ void commit_start(const char *job_id, BlockDriverState *bs,
}
/* convert base to r/w, if necessary */
- orig_base_flags = bdrv_get_flags(base);
- if (!(orig_base_flags & BDRV_O_RDWR)) {
- bdrv_reopen(base, orig_base_flags | BDRV_O_RDWR, &local_err);
- if (local_err != NULL) {
- error_propagate(errp, local_err);
+ s->base_read_only = bdrv_is_read_only(base);
+ if (s->base_read_only) {
+ if (bdrv_reopen_set_read_only(base, false, errp) != 0) {
goto fail;
}
}
@@ -363,7 +360,6 @@ void commit_start(const char *job_id, BlockDriverState *bs,
goto fail;
}
- s->base_flags = orig_base_flags;
s->backing_file_str = g_strdup(backing_file_str);
s->on_error = on_error;
This patch replaces the bdrv_reopen() calls that set and remove the BDRV_O_RDWR flag with the new bdrv_reopen_set_read_only() function. Signed-off-by: Alberto Garcia <berto@igalia.com> --- block/commit.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-)