disk_start_io_acct and disk_end_io_acct need at least a struct gendisk
forward declaration, but for weird historic reasons much of blkdev.h
is stubbed out for CONFIG_BLOCK=n. Fix this by stubbing more out for
now, but eventually this header will need a massive cleanup.
Fixes: 956d510ee78 ("block: add disk/bio-based accounting helpers")
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
include/linux/blkdev.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 6f7ff0fa8fcf8..8fd900998b4e2 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1892,12 +1892,12 @@ static inline void blk_wake_io_task(struct task_struct *waiter)
wake_up_process(waiter);
}
+#ifdef CONFIG_BLOCK
unsigned long disk_start_io_acct(struct gendisk *disk, unsigned int sectors,
unsigned int op);
void disk_end_io_acct(struct gendisk *disk, unsigned int op,
unsigned long start_time);
-#ifdef CONFIG_BLOCK
/**
* bio_start_io_acct - start I/O accounting for bio based drivers
* @bio: bio to start account for
--
2.26.2
