提交 e7d22f8b 编写于 作者: A Alberto Garcia 提交者: Kevin Wolf

block: Use bdrv_reopen_set_read_only() in stream_start/complete()

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: NAlberto Garcia <berto@igalia.com>
Reviewed-by: NMax Reitz <mreitz@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
上级 c742a364
......@@ -34,7 +34,7 @@ typedef struct StreamBlockJob {
BlockDriverState *base;
BlockdevOnError on_error;
char *backing_file_str;
int bs_flags;
bool bs_read_only;
} StreamBlockJob;
static int coroutine_fn stream_populate(BlockBackend *blk,
......@@ -89,10 +89,10 @@ static void stream_clean(Job *job)
BlockDriverState *bs = blk_bs(bjob->blk);
/* Reopen the image back in read-only mode if necessary */
if (s->bs_flags != bdrv_get_flags(bs)) {
if (s->bs_read_only) {
/* Give up write permissions before making it read-only */
blk_set_perm(bjob->blk, 0, BLK_PERM_ALL, &error_abort);
bdrv_reopen(bs, s->bs_flags, NULL);
bdrv_reopen_set_read_only(bs, true, NULL);
}
g_free(s->backing_file_str);
......@@ -226,12 +226,12 @@ void stream_start(const char *job_id, BlockDriverState *bs,
{
StreamBlockJob *s;
BlockDriverState *iter;
int orig_bs_flags;
bool bs_read_only;
/* Make sure that the image is opened in read-write mode */
orig_bs_flags = bdrv_get_flags(bs);
if (!(orig_bs_flags & BDRV_O_RDWR)) {
if (bdrv_reopen(bs, orig_bs_flags | BDRV_O_RDWR, errp) != 0) {
bs_read_only = bdrv_is_read_only(bs);
if (bs_read_only) {
if (bdrv_reopen_set_read_only(bs, false, errp) != 0) {
return;
}
}
......@@ -261,7 +261,7 @@ void stream_start(const char *job_id, BlockDriverState *bs,
s->base = base;
s->backing_file_str = g_strdup(backing_file_str);
s->bs_flags = orig_bs_flags;
s->bs_read_only = bs_read_only;
s->on_error = on_error;
trace_stream_start(bs, base, s);
......@@ -269,7 +269,7 @@ void stream_start(const char *job_id, BlockDriverState *bs,
return;
fail:
if (orig_bs_flags != bdrv_get_flags(bs)) {
bdrv_reopen(bs, orig_bs_flags, NULL);
if (bs_read_only) {
bdrv_reopen_set_read_only(bs, true, NULL);
}
}
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册