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| author | Chris Webb <chris@arachsys.com> | 2022-06-01 13:03:07 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-08-03 01:14:40 +0200 |
| commit | 05ce7fb946c37fc6fc8bf14073279e570f78f69e (patch) | |
| tree | 268dc1f9fedfc1cfdf5d5d6239795bff20b2812d /drivers/md/md-autodetect.c | |
| parent | md: Notify sysfs sync_completed in md_reap_sync_thread() (diff) | |
| download | linux-05ce7fb946c37fc6fc8bf14073279e570f78f69e.tar.xz linux-05ce7fb946c37fc6fc8bf14073279e570f78f69e.zip | |
md: Explicitly create command-line configured devices
Boot-time assembly of arrays with md= command-line arguments breaks when
CONFIG_BLOCK_LEGACY_AUTOLOAD is unset. md_setup_drive() in md-autodetect.c
calls blkdev_get_by_dev(), assuming this implicitly creates the block
device.
Fix this by attempting to md_alloc() the array first. As in the probe path,
ignore any error as failure is caught by blkdev_get_by_dev() anyway.
Signed-off-by: Chris Webb <chris@arachsys.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/md-autodetect.c')
| -rw-r--r-- | drivers/md/md-autodetect.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md-autodetect.c b/drivers/md/md-autodetect.c index 2cf973722f59..344910ba435c 100644 --- a/drivers/md/md-autodetect.c +++ b/drivers/md/md-autodetect.c @@ -169,6 +169,7 @@ static void __init md_setup_drive(struct md_setup_args *args) pr_info("md: Loading %s: %s\n", name, args->device_names); + md_alloc(mdev, name); bdev = blkdev_get_by_dev(mdev, FMODE_READ, NULL); if (IS_ERR(bdev)) { pr_err("md: open failed - cannot start array %s\n", name); |