[Qemu-devel] [PATCH 2/5] block: Honor flags during bdrv_aligned_preadv()

[Eric Blake <eblake@redhat.com>]

Not that we pass any flags during reads yet, but we may want to
support BDRV_REQ_FUA on reads in the future.  So don't throw
away the input flags.

Signed-off-by: Eric Blake <eblake@redhat.com>
---
 block/io.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/block/io.c b/block/io.c
index 81618b9..3c7b233 100644
--- a/block/io.c
+++ b/block/io.c
@@ -983,7 +983,7 @@ static int coroutine_fn bdrv_aligned_preadv(BlockDriverState *bs,

     /* Forward the request to the BlockDriver */
     if (!bs->zero_beyond_eof) {
-        ret = bdrv_driver_preadv(bs, offset, bytes, qiov, 0);
+        ret = bdrv_driver_preadv(bs, offset, bytes, qiov, flags);
     } else {
         /* Read zeros after EOF */
         int64_t total_sectors, max_nb_sectors;
@@ -997,7 +997,7 @@ static int coroutine_fn bdrv_aligned_preadv(BlockDriverState *bs,
         max_nb_sectors = ROUND_UP(MAX(0, total_sectors - sector_num),
                                   align >> BDRV_SECTOR_BITS);
         if (nb_sectors < max_nb_sectors) {
-            ret = bdrv_driver_preadv(bs, offset, bytes, qiov, 0);
+            ret = bdrv_driver_preadv(bs, offset, bytes, qiov, flags);
         } else if (max_nb_sectors > 0) {
             QEMUIOVector local_qiov;

@@ -1007,7 +1007,7 @@ static int coroutine_fn bdrv_aligned_preadv(BlockDriverState *bs,

             ret = bdrv_driver_preadv(bs, offset,
                                      max_nb_sectors * BDRV_SECTOR_SIZE,
-                                     &local_qiov, 0);
+                                     &local_qiov, flags);

             qemu_iovec_destroy(&local_qiov);
         } else {
-- 
2.5.5