mdadm/mdadm-2.6.2-raid4.patch

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--- mdadm-2.6.2/Monitor.c.raid4 2007-07-03 12:10:34.000000000 -0400
+++ mdadm-2.6.2/Monitor.c 2007-07-03 12:28:30.000000000 -0400
@@ -244,8 +244,10 @@ int Monitor(mddev_dev_t devlist,
close(fd);
continue;
}
- if (array.level != 1 && array.level != 5 && array.level != -4 &&
- array.level != 6 && array.level != 10) {
+ /* It's much easier to list what array levels can't
+ * have a device disappear than all of them that can
+ */
+ if (array.level == 0 || array.level == -1) {
if (!st->err)
alert("DeviceDisappeared", dev, "Wrong-Level",
mailaddr, mailfrom, alert_cmd, dosyslog);
@@ -399,9 +401,8 @@ int Monitor(mddev_dev_t devlist,
struct mdstat_ent *mse;
for (mse=mdstat; mse; mse=mse->next)
if (mse->devnum != MAXINT &&
- (strcmp(mse->level, "raid1")==0 ||
- strcmp(mse->level, "raid5")==0 ||
- strcmp(mse->level, "multipath")==0)
+ (strcmp(mse->level, "raid0")!=0 &&
+ strcmp(mse->level, "linear")!=0)
) {
struct state *st = malloc(sizeof *st);
mdu_array_info_t array;
--- mdadm-2.6.2/Create.c.raid4 2007-07-03 11:47:26.000000000 -0400
+++ mdadm-2.6.2/Create.c 2007-07-03 11:47:26.000000000 -0400
@@ -313,12 +313,13 @@ int Create(struct supertype *st, char *m
}
}
- /* If this is raid5, we want to configure the last active slot
+ /* If this is raid4/5, we want to configure the last active slot
* as missing, so that a reconstruct happens (faster than re-parity)
* FIX: Can we do this for raid6 as well?
*/
if (assume_clean==0 && force == 0 && first_missing >= raiddisks) {
switch ( level ) {
+ case 4:
case 5:
insert_point = raiddisks-1;
sparedisks++;
@@ -343,7 +344,7 @@ int Create(struct supertype *st, char *m
array.md_minor = minor(stb.st_rdev);
array.not_persistent = 0;
/*** FIX: Need to do something about RAID-6 here ***/
- if ( ( (level == 5) &&
+ if ( ( (level == 4 || level == 5) &&
(insert_point < raiddisks || first_missing < raiddisks) )
||
( level == 6 && missing_disks == 2)