md: beginnings of bad block management.

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This the first step in allowing md to track bad-blocks per-device so
that we can fail individual blocks rather than the whole device.

This patch just adds a data structure for recording bad blocks, with
routines to add, remove, search the list.

Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>

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NeilBrown 2011-07-28 11:31:46 +10:00

parent a519b26dbe

commit 2230dfe4cc

2 changed files with 459 additions and 4 deletions

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415

drivers/md/md.c

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48

drivers/md/md.h

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