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>
This commit is contained in:
Christoph Hellwig
2019-04-05 18:08:59 +02:00
committed by Jens Axboe
parent 75199aa526
commit 72deb455b5
61 changed files with 52 additions and 250 deletions

View File

@@ -1760,8 +1760,6 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
ext4_msg(sb, KERN_ERR,
"filesystem too large to resize to %llu blocks safely",
n_blocks_count);
if (sizeof(sector_t) < 8)
ext4_warning(sb, "CONFIG_LBDAF not enabled");
return -EINVAL;
}