NeilBrown ece5cff0da md: Support write-intent bitmaps with externally managed metadata. ...

In this case, the metadata needs to not be in the same
sector as the bitmap.
md will not read/write any bitmap metadata.  Config must be
done via sysfs and when a recovery makes the array non-degraded
again, writing 'true' to 'bitmap/can_clear' will allow bits in
the bitmap to be cleared again.

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

2009-12-14 12:51:41 +11:00

9.8 KiB

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