[src/trunk]: src/sys/dev/raidframe Factor out the component cache flushing co...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c21a230df71f
branches:  trunk
changeset: 974422:c21a230df71f
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Jul 31 19:30:09 2020 +0000

description:
Factor out the component cache flushing code; add retries.

diffstat:

 sys/dev/raidframe/rf_netbsdkintf.c |  55 +++++++++++++++++++------------------
 1 files changed, 28 insertions(+), 27 deletions(-)

diffs (88 lines):

diff -r 5f2557156860 -r c21a230df71f sys/dev/raidframe/rf_netbsdkintf.c
--- a/sys/dev/raidframe/rf_netbsdkintf.c        Fri Jul 31 19:06:33 2020 +0000
+++ b/sys/dev/raidframe/rf_netbsdkintf.c        Fri Jul 31 19:30:09 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rf_netbsdkintf.c,v 1.385 2020/06/20 18:36:27 riastradh Exp $   */
+/*     $NetBSD: rf_netbsdkintf.c,v 1.386 2020/07/31 19:30:09 christos Exp $    */
 
 /*-
  * Copyright (c) 1996, 1997, 1998, 2008-2011 The NetBSD Foundation, Inc.
@@ -101,7 +101,7 @@
  ***********************************************************/
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.385 2020/06/20 18:36:27 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.386 2020/07/31 19:30:09 christos Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_raid_autoconfig.h"
@@ -3660,43 +3660,44 @@
  * that fails.
  */
 
+static int
+rf_sync_component_cache(RF_Raid_t *raidPtr, int c)
+{
+       int force = 1;
+       int e = 0;
+       for (int i = 0; i < 5; i++) {
+               e = VOP_IOCTL(raidPtr->raid_cinfo[c].ci_vp, DIOCCACHESYNC,
+                   &force, FWRITE, NOCRED);
+               if (!e || e == ENODEV)
+                       return e;
+               printf("raid%d: cache flush[%d] to component %s failed (%d)\n",
+                   raidPtr->raidid, i, raidPtr->Disks[c].devname, e);
+       }
+       return 0;
+}
+
 int
 rf_sync_component_caches(RF_Raid_t *raidPtr)
 {
-       int c, sparecol;
-       int e,error;
-       int force = 1;
+       int c, error;
 
        error = 0;
        for (c = 0; c < raidPtr->numCol; c++) {
                if (raidPtr->Disks[c].status == rf_ds_optimal) {
-                       e = VOP_IOCTL(raidPtr->raid_cinfo[c].ci_vp, DIOCCACHESYNC,
-                                         &force, FWRITE, NOCRED);
-                       if (e) {
-                               if (e != ENODEV)
-                                       printf("raid%d: cache flush to component %s failed.\n",
-                                              raidPtr->raidid, raidPtr->Disks[c].devname);
-                               if (error == 0) {
-                                       error = e;
-                               }
-                       }
+                       int e = rf_sync_component_cache(raidPtr, c);
+                       if (error == 0)
+                               error = e;
                }
        }
 
-       for( c = 0; c < raidPtr->numSpare ; c++) {
-               sparecol = raidPtr->numCol + c;
+       for (c = 0; c < raidPtr->numSpare ; c++) {
+               int sparecol = raidPtr->numCol + c;
                /* Need to ensure that the reconstruct actually completed! */
                if (raidPtr->Disks[sparecol].status == rf_ds_used_spare) {
-                       e = VOP_IOCTL(raidPtr->raid_cinfo[sparecol].ci_vp,
-                                         DIOCCACHESYNC, &force, FWRITE, NOCRED);
-                       if (e) {
-                               if (e != ENODEV)
-                                       printf("raid%d: cache flush to component %s failed.\n",
-                                              raidPtr->raidid, raidPtr->Disks[sparecol].devname);
-                               if (error == 0) {
-                                       error = e;
-                               }
-                       }
+                       int e = rf_sync_component_cache(raidPtr, sparecol);
+                       if (error == 0)
+                               error = e;
+                       continue;
                }
        }
        return error;