linux-kernel - [PATCH 2/5] md: replace GENHD_FL_UP with GENHD_FL_DISK_ADDED on is_mddev

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Message-Id: <20210720182048.1906526-3-mcgrof@kernel.org>
Date:   Tue, 20 Jul 2021 11:20:45 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     axboe@...nel.dk
Cc:     hare@...e.de, bvanassche@....org, ming.lei@...hat.com,
        hch@...radead.org, jack@...e.cz, osandov@...com,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luis Chamberlain <mcgrof@...nel.org>
Subject: [PATCH 2/5] md: replace GENHD_FL_UP with GENHD_FL_DISK_ADDED on is_mddev_broken()

The GENHD_FL_DISK_ADDED flag is what we really want, as the
flag GENHD_FL_UP could be set on a semi-initialized device.

Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---
 drivers/md/md.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 832547cf038f..cf70e0cfa856 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -764,9 +764,7 @@ struct md_rdev *md_find_rdev_rcu(struct mddev *mddev, dev_t dev);
 
 static inline bool is_mddev_broken(struct md_rdev *rdev, const char *md_type)
 {
-	int flags = rdev->bdev->bd_disk->flags;
-
-	if (!(flags & GENHD_FL_UP)) {
+	if (!blk_disk_added(rdev->bdev->bd_disk)) {
 		if (!test_and_set_bit(MD_BROKEN, &rdev->mddev->flags))
 			pr_warn("md: %s: %s array has a missing/failed member\n",
 				mdname(rdev->mddev), md_type);
-- 
2.27.0