block: Add a 'flags' param to blk_pread()

For consistency with other I/O functions, and in preparation to
implement it using generated_co_wrapper.

Callers were updated using this Coccinelle script:

    @@ expression blk, offset, buf, bytes; @@
    - blk_pread(blk, offset, buf, bytes)
    + blk_pread(blk, offset, buf, bytes, 0)

It had no effect on hw/block/nand.c, presumably due to the #if, so that
file was updated manually.

Overly-long lines were then fixed by hand.

Signed-off-by: Alberto Faria <afaria@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-3-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/migration/block.c b/migration/block.c
index 823453c977..5362230714 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -568,8 +568,8 @@ static int mig_save_device_dirty(QEMUFile *f, BlkMigDevState *bmds,
                 bmds_set_aio_inflight(bmds, sector, nr_sectors, 1);
                 blk_mig_unlock();
             } else {
-                ret = blk_pread(bmds->blk, sector * BDRV_SECTOR_SIZE, blk->buf,
-                                nr_sectors * BDRV_SECTOR_SIZE);
+                ret = blk_pread(bmds->blk, sector * BDRV_SECTOR_SIZE,
+                                blk->buf, nr_sectors * BDRV_SECTOR_SIZE, 0);
                 if (ret < 0) {
                     goto error;
                 }