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block: move bdi/address_space unplug functions to backing-dev.h

Browse source 
There's nothing block related about them, the backing device
is used by things like NFS etc as well. This gets rid of the
need to protect such calls by CONFIG_BLOCK.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2009-10-29 13:59:26 +01:00
parent a870a3a485
commit b9d128f108
3 changed files with 14 additions and 13 deletions
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1
fs/aio.c
View file

@ -15,6 +15,7 @@
#include <linux/aio_abi.h>
#include <linux/module.h>
#include <linux/syscalls.h>
#include <linux/backing-dev.h>
#include <linux/uio.h>
#define DEBUG 0

13
include/linux/backing-dev.h
View file

@ -331,4 +331,17 @@ static inline int bdi_sched_wait(void *word)
return 0;
}
static inline void blk_run_backing_dev(struct backing_dev_info *bdi,
struct page *page)
{
if (bdi && bdi->unplug_io_fn)
bdi->unplug_io_fn(bdi, page);
}
static inline void blk_run_address_space(struct address_space *mapping)
{
if (mapping)
blk_run_backing_dev(mapping->backing_dev_info, NULL);
}
#endif /* _LINUX_BACKING_DEV_H */

13
include/linux/blkdev.h
View file

@ -823,19 +823,6 @@ static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
return bdev->bd_disk->queue;
}
static inline void blk_run_backing_dev(struct backing_dev_info *bdi,
struct page *page)
{
if (bdi && bdi->unplug_io_fn)
bdi->unplug_io_fn(bdi, page);
}
static inline void blk_run_address_space(struct address_space *mapping)
{
if (mapping)
blk_run_backing_dev(mapping->backing_dev_info, NULL);
}
/*
* blk_rq_pos() : the current sector
* blk_rq_bytes() : bytes left in the entire request