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authorJohn Garry <john.garry@huawei.com>2020-07-01 16:06:25 +0800
committerJens Axboe <axboe@kernel.dk>2020-07-01 10:53:00 -0600
commit6bf0eb5504529cdf50a24135e4c4442a093c06d6 (patch)
tree4205235a563d9b9558ddde2963ffce95e5f7aafc /block/blk.h
parent1008fe6dc36dd87dfd02d4307f49162f0b4f1665 (diff)
sbitmap: Consider cleared bits in sbitmap_bitmap_show()
sbitmap works by maintaining separate bitmaps of set and cleared bits. The set bits are cleared in a batch, to save the burden of continuously locking the "word" map to unset. sbitmap_bitmap_show() only shows the set bits (in "word"), which is not too much use, so mask out the cleared bits. Fixes: ea86ea2cdced ("sbitmap: ammortize cost of clearing bits") Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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