block: Change blk_{pread,pwrite}() param order

Swap 'buf' and 'bytes' around for consistency with
blk_co_{pread,pwrite}(), and in preparation to implement these functions
using generated_co_wrapper.

Callers were updated using this Coccinelle script:

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

    @@ expression blk, offset, buf, bytes, flags; @@
    - blk_pwrite(blk, offset, buf, bytes, flags)
    + blk_pwrite(blk, offset, bytes, buf, flags)

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: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220705161527.1054072-4-afaria@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/migration/block.c b/migration/block.c
index 5362230714..9e5aae5898 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -569,7 +569,7 @@ static int mig_save_device_dirty(QEMUFile *f, BlkMigDevState *bmds,
                 blk_mig_unlock();
             } else {
                 ret = blk_pread(bmds->blk, sector * BDRV_SECTOR_SIZE,
-                                blk->buf, nr_sectors * BDRV_SECTOR_SIZE, 0);
+                                nr_sectors * BDRV_SECTOR_SIZE, blk->buf, 0);
                 if (ret < 0) {
                     goto error;
                 }
@@ -976,8 +976,8 @@ static int block_load(QEMUFile *f, void *opaque, int version_id)
                                                 cluster_size,
                                                 BDRV_REQ_MAY_UNMAP);
                     } else {
-                        ret = blk_pwrite(blk, cur_addr, cur_buf,
-                                         cluster_size, 0);
+                        ret = blk_pwrite(blk, cur_addr, cluster_size, cur_buf,
+                                         0);
                     }
                     if (ret < 0) {
                         break;