block: Use bdrv_is_sg() everywhere

Instead of checking bs->sg use bdrv_is_sg() consistently throughout
the code.

Signed-off-by: Dimitris Aragiorgis <dimara@arrikto.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435056300-14924-2-git-send-email-dimara@arrikto.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
stable-2.4
Dimitris Aragiorgis 2015-06-23 13:44:56 +03:00 committed by Stefan Hajnoczi
parent 25940fa7e5
commit b192af8acc
3 changed files with 6 additions and 6 deletions

View File

@ -585,7 +585,7 @@ static int find_image_format(BlockDriverState *bs, const char *filename,
int ret = 0;
/* Return the raw BlockDriver * to scsi-generic devices or empty drives */
if (bs->sg || !bdrv_is_inserted(bs) || bdrv_getlength(bs) == 0) {
if (bdrv_is_sg(bs) || !bdrv_is_inserted(bs) || bdrv_getlength(bs) == 0) {
*pdrv = &bdrv_raw;
return ret;
}
@ -617,7 +617,7 @@ static int refresh_total_sectors(BlockDriverState *bs, int64_t hint)
BlockDriver *drv = bs->drv;
/* Do not attempt drv->bdrv_getlength() on scsi-generic devices */
if (bs->sg)
if (bdrv_is_sg(bs))
return 0;
/* query actual device if possible, otherwise just trust the hint */
@ -948,7 +948,7 @@ static int bdrv_open_common(BlockDriverState *bs, BlockDriverState *file,
assert(bdrv_opt_mem_align(bs) != 0);
assert(bdrv_min_mem_align(bs) != 0);
assert((bs->request_alignment != 0) || bs->sg);
assert((bs->request_alignment != 0) || bdrv_is_sg(bs));
qemu_opts_del(opts);
return 0;

View File

@ -628,7 +628,7 @@ static int coroutine_fn iscsi_co_flush(BlockDriverState *bs)
IscsiLun *iscsilun = bs->opaque;
struct IscsiTask iTask;
if (bs->sg) {
if (bdrv_is_sg(bs)) {
return 0;
}

View File

@ -305,9 +305,9 @@ static void raw_probe_alignment(BlockDriverState *bs, int fd, Error **errp)
char *buf;
size_t max_align = MAX(MAX_BLOCKSIZE, getpagesize());
/* For /dev/sg devices the alignment is not really used.
/* For SCSI generic devices the alignment is not really used.
With buffered I/O, we don't have any restrictions. */
if (bs->sg || !s->needs_alignment) {
if (bdrv_is_sg(bs) || !s->needs_alignment) {
bs->request_alignment = 1;
s->buf_align = 1;
return;