Re: Fast (intelligent) raid1

"A month of sundays ago Neil Brown wrote:"

The first time you set a bit, record the current 'event' number with
the bitmap.

I'm having some trouble with this part. Now, there ARE things called
event_hi and event_lo in the current raid code, and you may be
referring to these.

Correct?

On hot-add, read the old superblock.  If it looks valid and matches
the current array, and has an event counter of X or more, then ignore

And this is the same event_hi and event_lo?

Now this all HAS to be done in md.c, vecause the read_disk_sb and
write_disk_sb functions are not exported from there.

Peter