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| author | Christoph Hellwig <hch@lst.de> | 2021-08-04 11:41:42 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-09 11:50:42 -0600 |
| commit | 0dbcfe247f22a6d73302dfa691c48b3c14d31c4c (patch) | |
| tree | e0954dc2fc3a87f67214da4908f1384ab56a6e86 /block/genhd.c | |
| parent | fbd9a39542ecdd2ade55869c13856b2590db3df8 (diff) | |
| download | linux-0dbcfe247f22a6d73302dfa691c48b3c14d31c4c.tar.gz linux-0dbcfe247f22a6d73302dfa691c48b3c14d31c4c.tar.bz2 linux-0dbcfe247f22a6d73302dfa691c48b3c14d31c4c.zip | |
block: look up holders by bdev
Invert they way the holder relations are tracked. This very
slightly reduces the memory overhead for partitioned devices.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210804094147.459763-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/genhd.c b/block/genhd.c index a4817e42f3a3..cd4eab744667 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1289,7 +1289,9 @@ struct gendisk *__alloc_disk_node(int minors, int node_id) disk_to_dev(disk)->type = &disk_type; device_initialize(disk_to_dev(disk)); inc_diskseq(disk); - +#ifdef CONFIG_BLOCK_HOLDER_DEPRECATED + INIT_LIST_HEAD(&disk->slave_bdevs); +#endif return disk; out_destroy_part_tbl: |