Re: raid 4, and bitmap.

On Friday February 3, djani22@dynamicweb.hu wrote:

quoted

If it is an internal bitmap.... it should work.
Are there any kernel messages during boot that might be interesting?

Sorry, i did not log this, and i dont want to restart the sync and system
for this.
Anyway, i add back the bitmap, and the next crash we will see....

I mean this was:
"bitmap is only support in raid1.
bitmap is removed."

But not so sure. :(

Close enough.  Here is the fix.

NeilBrown

Signed-off-by: Neil Brown <redacted>

### Diffstat output
 ./drivers/md/md.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff ./drivers/md/md.c~current~ ./drivers/md/md.c

--- ./drivers/md/md.c~current~	2006-02-03 08:57:28.000000000 +1100
+++ ./drivers/md/md.c	2006-02-03 11:22:57.000000000 +1100

@@ -763,7 +763,8 @@ static int super_90_validate(mddev_t *md
 
 		if (sb->state & (1<<MD_SB_BITMAP_PRESENT) &&
 		    mddev->bitmap_file == NULL) {
-			if (mddev->level != 1 && mddev->level != 5 && mddev->level != 6
+			if (mddev->level != 1 && && mddev->level != 4
+			    && mddev->level != 5 && mddev->level != 6
 			    && mddev->level != 10) {
 				/* FIXME use a better test */
 				printk(KERN_WARNING "md: bitmaps not supported for this level.\n");