sbitmap: rewrite sbitmap_find_bit_in_index to reduce repeat code
authorKemeng Shi <shikemeng@huaweicloud.com>
Mon, 16 Jan 2023 20:50:57 +0000 (04:50 +0800)
committerJens Axboe <axboe@kernel.dk>
Mon, 30 Jan 2023 03:03:01 +0000 (20:03 -0700)
commit08470a98a7d7e32c787b23b87353f13b03c23195
tree3c99054c6beb4d36b8923318a24976a81383f38a
parent903e86f3a64d9573352bbab2f211fdbbaa5772b7
sbitmap: rewrite sbitmap_find_bit_in_index to reduce repeat code

Rewrite sbitmap_find_bit_in_index as following:
1. Rename sbitmap_find_bit_in_index to sbitmap_find_bit_in_word
2. Accept "struct sbitmap_word *" directly instead of accepting
"struct sbitmap *" and "int index" to get "struct sbitmap_word *".
3. Accept depth/shallow_depth and wrap for __sbitmap_get_word from caller
to support need of both __sbitmap_get_shallow and __sbitmap_get.

With helper function sbitmap_find_bit_in_word, we can remove repeat
code in __sbitmap_get_shallow to find bit considring deferred clear.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Link: https://lore.kernel.org/r/20230116205059.3821738-4-shikemeng@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
lib/sbitmap.c