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authorChristoph Hellwig <hch@lst.de>2020-11-24 09:36:54 +0100
committerJens Axboe <axboe@kernel.dk>2020-12-01 14:53:40 -0700
commit8446fe9255be821cb38ffd306d7e8edc4b9ea662 (patch)
tree7da651adc11c5df03c517255cd6872a92705f150 /block/partitions
parentcb8432d650fe3be58bb962bc8e602dc405510327 (diff)
downloadlinux-stericsson-8446fe9255be821cb38ffd306d7e8edc4b9ea662.tar.gz
block: switch partition lookup to use struct block_device
Use struct block_device to lookup partitions on a disk. This removes all usage of struct hd_struct from the I/O path. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Hannes Reinecke <hare@suse.de> Acked-by: Coly Li <colyli@suse.de> [bcache] Acked-by: Chao Yu <yuchao0@huawei.com> [f2fs] Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/partitions')
-rw-r--r--block/partitions/core.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 6d1fca193cbd..c2f6721633b8 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -298,12 +298,9 @@ void delete_partition(struct hd_struct *part)
struct disk_part_tbl *ptbl =
rcu_dereference_protected(disk->part_tbl, 1);
- /*
- * ->part_tbl is referenced in this part's release handler, so
- * we have to hold the disk device
- */
rcu_assign_pointer(ptbl->part[part->partno], NULL);
rcu_assign_pointer(ptbl->last_lookup, NULL);
+
kobject_put(part->bdev->bd_holder_dir);
device_del(part_to_dev(part));
@@ -421,7 +418,7 @@ static struct hd_struct *add_partition(struct gendisk *disk, int partno,
/* everything is up and running, commence */
bdev_add(bdev, devt);
- rcu_assign_pointer(ptbl->part[partno], p);
+ rcu_assign_pointer(ptbl->part[partno], bdev);
/* suppress uevent if the disk suppresses it */
if (!dev_get_uevent_suppress(ddev))