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authorJens Axboe <jens.axboe@oracle.com>2009-10-29 15:59:26 +0300
committerJens Axboe <jens.axboe@oracle.com>2009-10-29 15:59:26 +0300
commitb9d128f1088ea5245109dfc9bbceb128b6371a77 (patch)
tree63e85f281dd372e77af4022e2235a4e5a46287de /include/linux/backing-dev.h
parenta870a3a485ddf7c0dec549269ed71d169556d61c (diff)
downloadlinux-b9d128f1088ea5245109dfc9bbceb128b6371a77.tar.xz
block: move bdi/address_space unplug functions to backing-dev.h
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>
Diffstat (limited to 'include/linux/backing-dev.h')
-rw-r--r--include/linux/backing-dev.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index b449e738533a..fcbc26af00e4 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -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 */