MD RAID10: Export md_raid10_congested
md/raid10: Export is_congested test.
In similar fashion to commits
11d8a6e3719519fbc0e2c9d61b6fa931b84bf813
1ed7242e591af7e233234d483f12d33818b189d9
we export the RAID10 congestion checking function so that dm-raid.c can
make use of it and make use of the personality. The 'queue' and 'gendisk'
structures will not be available to the MD code when device-mapper sets
up the device, so we conditionalize access to these fields also.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index b0a4358..007c2c6 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -145,4 +145,7 @@
*/
R10BIO_Previous,
};
+
+extern int md_raid10_congested(struct mddev *mddev, int bits);
+
#endif