diff options
| author |   Christoph Hellwig <hch@lst.de> | 2021-05-21 07:50:52 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-06-01 07:42:23 -0600 |
| commit | 2e3c73fa0c419f62fd588731be30fb0d1bca9ad6 (patch) | |
| tree | 0eec93944f437ddf5cac38d5dbbdba8b7f0abcf4 /block/genhd.c | |
| parent | block: refactor device number setup in __device_add_disk (diff) | |
| download | wireguard-linux-2e3c73fa0c419f62fd588731be30fb0d1bca9ad6.tar.xz wireguard-linux-2e3c73fa0c419f62fd588731be30fb0d1bca9ad6.zip | |
block: move the DISK_MAX_PARTS sanity check into __device_add_disk
Keep this together with the first place that actually looks at
->minors and prepare for not passing a minors argument to
alloc_disk.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20210521055116.1053587-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/block/genhd.c b/block/genhd.c index 3daab80201df..8c1816d2929e 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -489,6 +489,12 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, */ if (disk->major) { WARN_ON(!disk->minors); + + if (disk->minors > DISK_MAX_PARTS) { + pr_err("block: can't allocate more than %d partitions\n", + DISK_MAX_PARTS); + disk->minors = DISK_MAX_PARTS; + } } else { WARN_ON(disk->minors); WARN_ON(!(disk->flags & (GENHD_FL_EXT_DEVT | GENHD_FL_HIDDEN))); @@ -1255,13 +1261,6 @@ struct gendisk *__alloc_disk_node(int minors, int node_id) { struct gendisk *disk; - if (minors > DISK_MAX_PARTS) { - printk(KERN_ERR - "block: can't allocate more than %d partitions\n", - DISK_MAX_PARTS); - minors = DISK_MAX_PARTS; - } - disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id); if (!disk) return NULL; |