hfsplus: don't set REQ_SYNC for hfsplus_submit_bio()

hfsplus_submit_bio() called by hfsplus_sync_fs() uses bdev_virt_rw() which
in turn uses submit_bio_wait() to submit the BIO.

But submit_bio_wait() already sets the REQ_SYNC flag on the BIO so there
is no need for setting the flag in hfsplus_sync_fs() when calling
hfsplus_submit_bio().

Signed-off-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Yangtao Li <[email protected]>
Reviewed-by: Viacheslav Dubeyko <[email protected]>
Signed-off-by: Viacheslav Dubeyko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Viacheslav Dubeyko <[email protected]>

Author: morbidrsa

fs/hfsplus/super.c

@@ -222,17 +222,15 @@ static int hfsplus_sync_fs(struct super_block *sb, int wait)
 
 	error2 = hfsplus_submit_bio(sb,
 				   sbi->part_start + HFSPLUS_VOLHEAD_SECTOR,
-				   sbi->s_vhdr_buf, NULL, REQ_OP_WRITE |
-				   REQ_SYNC);
+				   sbi->s_vhdr_buf, NULL, REQ_OP_WRITE);
 	if (!error)
 		error = error2;
 	if (!write_backup)
 		goto out;
 
 	error2 = hfsplus_submit_bio(sb,
 				  sbi->part_start + sbi->sect_count - 2,
-				  sbi->s_backup_vhdr_buf, NULL, REQ_OP_WRITE |
-				  REQ_SYNC);
+				  sbi->s_backup_vhdr_buf, NULL, REQ_OP_WRITE);
 	if (!error)
 		error2 = error;
 out: