diff options
| 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 /include/linux/genhd.h | |
| parent | fbd9a39542ecdd2ade55869c13856b2590db3df8 (diff) | |
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 'include/linux/genhd.h')
| -rw-r--r-- | include/linux/genhd.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index e21a91c16a79..0721807d76ee 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -159,7 +159,9 @@ struct gendisk { unsigned open_partitions; /* number of open partitions */ struct kobject *slave_dir; - +#ifdef CONFIG_BLOCK_HOLDER_DEPRECATED + struct list_head slave_bdevs; +#endif struct timer_rand_state *random; atomic_t sync_io; /* RAID */ struct disk_events *ev; |