From: Luis Chamberlain <mcgrof@kernel.org>
To: axboe@kernel.dk
Cc: hare@suse.de, bvanassche@acm.org, ming.lei@redhat.com,
hch@infradead.org, jack@suse.cz, osandov@fb.com,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>
Subject: [RFC 6/6] fs/block_dev: replace GENHD_FL_UP with GENHD_FL_DISK_ADDED
Date: Thu, 15 Jul 2021 13:23:41 -0700 [thread overview]
Message-ID: <20210715202341.2016612-7-mcgrof@kernel.org> (raw)
In-Reply-To: <20210715202341.2016612-1-mcgrof@kernel.org>
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@kernel.org>
---
fs/block_dev.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 0c424a0cadaa..c41d0e550d39 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1338,7 +1338,8 @@ struct block_device *blkdev_get_no_open(dev_t dev)
disk = bdev->bd_disk;
if (!kobject_get_unless_zero(&disk_to_dev(disk)->kobj))
goto bdput;
- if ((disk->flags & (GENHD_FL_UP | GENHD_FL_HIDDEN)) != GENHD_FL_UP)
+ if ((disk->flags &
+ (GENHD_FL_DISK_ADDED | GENHD_FL_HIDDEN)) != GENHD_FL_DISK_ADDED)
goto put_disk;
if (!try_module_get(bdev->bd_disk->fops->owner))
goto put_disk;
@@ -1407,7 +1408,7 @@ struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode, void *holder)
mutex_lock(&disk->open_mutex);
ret = -ENXIO;
- if (!(disk->flags & GENHD_FL_UP))
+ if (!(disk->flags & GENHD_FL_DISK_ADDED))
goto abort_claiming;
if (bdev_is_partition(bdev))
ret = blkdev_get_part(bdev, mode);
--
2.27.0
next prev parent reply other threads:[~2021-07-15 20:24 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 20:23 [RFC 0/6] block: enhance use of GENHD_FL_UP Luis Chamberlain
2021-07-15 20:23 ` [RFC 1/6] genhd: update docs for GENHD_FL_UP Luis Chamberlain
2021-07-16 5:50 ` Hannes Reinecke
2021-07-19 9:52 ` Christoph Hellwig
2021-07-15 20:23 ` [RFC 2/6] block: add flag for add_disk() completion notation Luis Chamberlain
2021-07-16 5:49 ` Hannes Reinecke
2021-07-16 20:00 ` Luis Chamberlain
2021-07-19 10:00 ` Christoph Hellwig
2021-07-19 22:38 ` Luis Chamberlain
2021-07-15 20:23 ` [RFC 3/6] md: replace GENHD_FL_UP with GENHD_FL_DISK_ADDED on is_mddev_broken() Luis Chamberlain
2021-07-16 5:51 ` Hannes Reinecke
2021-07-16 20:02 ` Luis Chamberlain
2021-07-28 19:20 ` Guilherme G. Piccoli
2021-07-15 20:23 ` [RFC 4/6] mmc/core/block: replace GENHD_FL_UP with GENHD_FL_DISK_ADDED Luis Chamberlain
2021-07-16 5:51 ` Hannes Reinecke
2021-07-15 20:23 ` [RFC 5/6] nvme: " Luis Chamberlain
2021-07-16 5:53 ` Hannes Reinecke
2021-07-15 20:23 ` Luis Chamberlain [this message]
2021-07-19 9:56 ` [RFC 0/6] block: enhance use of GENHD_FL_UP Christoph Hellwig
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