Christoph Hellwig 6321bef028 bcache: use read_cache_page_gfp to read the superblock ...

Avoid a pointless dependency on buffer heads in bcache by simply open
coding reading a single page.  Also add a SB_OFFSET define for the
byte offset of the superblock instead of using magic numbers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2020-01-23 11:40:01 -07:00

9.1 KiB

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