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authorJens Axboe <jens.axboe@oracle.com>2008-09-18 09:31:53 -0700
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 08:56:17 +0200
commit9c02f2b02e29a2244e36c6e1f246080d8afc6cff (patch)
treed917ffa2e6ea5a75d180b72cc16e786da6a4b437 /fs/bio-integrity.c
parent7ba1fbaa4a478f72fbaf5a56af9c82a77966b4c7 (diff)
downloadlinux-9c02f2b02e29a2244e36c6e1f246080d8afc6cff.tar.gz
block: cleanup some of the integrity stuff in blkdev.h
Don't put functions that are only used in fs/bio-integrity.c in blkdev.h, it's much cleaner to just keep it in there. Also kill completely unused bdev_get_tag_size() Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/bio-integrity.c')
-rw-r--r--fs/bio-integrity.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index c3e174b35fe..ba4ada08564 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -150,6 +150,29 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
}
EXPORT_SYMBOL(bio_integrity_add_page);
+static struct blk_integrity *bdev_get_integrity(struct block_device *bdev)
+{
+ return bdev->bd_disk->integrity;
+}
+
+static int bdev_integrity_enabled(struct block_device *bdev, int rw)
+{
+ struct blk_integrity *bi = bdev_get_integrity(bdev);
+
+ if (bi == NULL)
+ return 0;
+
+ if (rw == READ && bi->verify_fn != NULL &&
+ (bi->flags & INTEGRITY_FLAG_READ))
+ return 1;
+
+ if (rw == WRITE && bi->generate_fn != NULL &&
+ (bi->flags & INTEGRITY_FLAG_WRITE))
+ return 1;
+
+ return 0;
+}
+
/**
* bio_integrity_enabled - Check whether integrity can be passed
* @bio: bio to check
@@ -313,6 +336,14 @@ static void bio_integrity_generate(struct bio *bio)
}
}
+static inline unsigned short blk_integrity_tuple_size(struct blk_integrity *bi)
+{
+ if (bi)
+ return bi->tuple_size;
+
+ return 0;
+}
+
/**
* bio_integrity_prep - Prepare bio for integrity I/O
* @bio: bio to prepare