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| author | Christoph Hellwig <hch@lst.de> | 2019-04-05 18:08:59 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-04-06 10:48:35 -0600 |
| commit | 72deb455b5ec619ff043c30bc90025aa3de3cdda (patch) | |
| tree | 8c2a77bc41d25181e03da1f04068be12a4c0583c /drivers/md/dm-exception-store.h | |
| parent | 75199aa5269f66d0958aa9971fa81a92de83d7f9 (diff) | |
| download | linux-stable-72deb455b5ec619ff043c30bc90025aa3de3cdda.tar.gz linux-stable-72deb455b5ec619ff043c30bc90025aa3de3cdda.tar.bz2 linux-stable-72deb455b5ec619ff043c30bc90025aa3de3cdda.zip | |
block: remove CONFIG_LBDAF
Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes larger than 2 TiB, and have generally defaulted to on for
a long time. Enabling the option only increases the i386 tinyconfig
size by 145 bytes, and many data structures already always use
64-bit values for their in-core and on-disk data structures anyway,
so there should not be a large change in dynamic memory usage either.
Dropping this option removes a somewhat weird non-default config that
has cause various bugs or compiler warnings when actually used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm-exception-store.h')
| -rw-r--r-- | drivers/md/dm-exception-store.h | 28 |
1 files changed, 2 insertions, 26 deletions
diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h index 12b5216c2cfe..721efc493942 100644 --- a/drivers/md/dm-exception-store.h +++ b/drivers/md/dm-exception-store.h @@ -135,9 +135,8 @@ struct dm_dev *dm_snap_cow(struct dm_snapshot *snap); /* * Funtions to manipulate consecutive chunks */ -# if defined(CONFIG_LBDAF) || (BITS_PER_LONG == 64) -# define DM_CHUNK_CONSECUTIVE_BITS 8 -# define DM_CHUNK_NUMBER_BITS 56 +#define DM_CHUNK_CONSECUTIVE_BITS 8 +#define DM_CHUNK_NUMBER_BITS 56 static inline chunk_t dm_chunk_number(chunk_t chunk) { @@ -163,29 +162,6 @@ static inline void dm_consecutive_chunk_count_dec(struct dm_exception *e) e->new_chunk -= (1ULL << DM_CHUNK_NUMBER_BITS); } -# else -# define DM_CHUNK_CONSECUTIVE_BITS 0 - -static inline chunk_t dm_chunk_number(chunk_t chunk) -{ - return chunk; -} - -static inline unsigned dm_consecutive_chunk_count(struct dm_exception *e) -{ - return 0; -} - -static inline void dm_consecutive_chunk_count_inc(struct dm_exception *e) -{ -} - -static inline void dm_consecutive_chunk_count_dec(struct dm_exception *e) -{ -} - -# endif - /* * Return the number of sectors in the device. */ |