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authorChristoph Hellwig <hch@lst.de>2020-01-23 20:01:27 +0300
committerJens Axboe <axboe@kernel.dk>2020-01-23 21:40:00 +0300
commita702a692cd7559053ea573f4e2c84828f0e62824 (patch)
tree8a50b865f2ebfc18ce83e99ba217195dd591ceb7 /drivers/md
parente8547d42095e58bee658f00fef8e33d2a185c927 (diff)
downloadlinux-a702a692cd7559053ea573f4e2c84828f0e62824.tar.xz
bcache: use a separate data structure for the on-disk super block
Split out an on-disk version struct cache_sb with the proper endianness annotations. This fixes a fair chunk of sparse warnings, but there are some left due to the way the checksum is defined. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Coly Li <colyli@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/bcache/super.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index a573ce1d85aa..3045f27e0d67 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -63,14 +63,14 @@ static const char *read_super(struct cache_sb *sb, struct block_device *bdev,
struct page **res)
{
const char *err;
- struct cache_sb *s;
+ struct cache_sb_disk *s;
struct buffer_head *bh = __bread(bdev, 1, SB_SIZE);
unsigned int i;
if (!bh)
return "IO error";
- s = (struct cache_sb *) bh->b_data;
+ s = (struct cache_sb_disk *)bh->b_data;
sb->offset = le64_to_cpu(s->offset);
sb->version = le64_to_cpu(s->version);
@@ -209,7 +209,7 @@ static void write_bdev_super_endio(struct bio *bio)
static void __write_super(struct cache_sb *sb, struct bio *bio)
{
- struct cache_sb *out = page_address(bio_first_page_all(bio));
+ struct cache_sb_disk *out = page_address(bio_first_page_all(bio));
unsigned int i;
bio->bi_iter.bi_sector = SB_SECTOR;