New function: sysfs_wait

We have several places that wait for activity on a sysfs
file.  Combine most of these into a single 'sysfs_wait' function.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/mdadm.h b/mdadm.h
index 2633b89e..13ea26a0 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -549,6 +549,7 @@ extern int sysfs_add_disk(struct mdinfo *sra, struct mdinfo *sd, int resume);
 extern int sysfs_disk_to_scsi_id(int fd, __u32 *id);
 extern int sysfs_unique_holder(char *devnm, long rdev);
 extern int sysfs_freeze_array(struct mdinfo *sra);
+extern int sysfs_wait(int fd, int *msec);
 extern int load_sys(char *path, char *buf);
 extern int reshape_prepare_fdlist(char *devname,
 				  struct mdinfo *sra,