IMSM: fix wait_for_reshape_imsm

This was waiting on "reshape_position" which doesn't
get update events.
Before sysfs_wait was introduced, the code to wait didn't
wait at all, so it spun.
With sysfs_wait, it would wait forever.

Change to wait in sync_completed which does get events.

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

diff --git a/super-intel.c b/super-intel.c
index 27c725fcfa62d942f8eff8e572b2bab30a170d67..baea13cc3a8170158039f3701ea770eb30a5bb00 100644 (file)
--- a/super-intel.c
+++ b/super-intel.c
@@ -10125,7 +10125,7 @@ exit_imsm_reshape_super:
  ******************************************************************************/
 int wait_for_reshape_imsm(struct mdinfo *sra, int ndata)
 {
-       int fd = sysfs_get_fd(sra, NULL, "reshape_position");
+       int fd = sysfs_get_fd(sra, NULL, "sync_completed");
        unsigned long long completed;
        /* to_complete : new sync_max position */
        unsigned long long to_complete = sra->reshape_progress;
@@ -10144,10 +10144,10 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata)
                return 0;
        }
 
-       if (completed > to_complete) {
+       if (completed > position_to_set) {
                dprintf("imsm: wait_for_reshape_imsm() "
                        "wrong next position to set %llu (%llu)\n",
-                       to_complete, completed);
+                       to_complete, position_to_set);
                close(fd);
                return -1;
        }
@@ -10174,7 +10174,7 @@ int wait_for_reshape_imsm(struct mdinfo *sra, int ndata)
                        close(fd);
                        return 1;
                }
-       } while (completed < to_complete);
+       } while (completed < position_to_set);
        close(fd);
        return 0;