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| author | NeilBrown <neilb@suse.de> | 2009-12-14 12:49:56 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-12-14 12:51:41 +1100 |
| commit | ece5cff0da9e696c360fff592cb5f51b6419e4d6 (patch) | |
| tree | 1c5cab0e89ae466be9edb476ceb91e5c898fafa6 /drivers/md/md.h | |
| parent | 624ce4f5658fa3e0303c1217bba2706142fe7568 (diff) | |
| download | kernel_samsung_tuna-ece5cff0da9e696c360fff592cb5f51b6419e4d6.zip kernel_samsung_tuna-ece5cff0da9e696c360fff592cb5f51b6419e4d6.tar.gz kernel_samsung_tuna-ece5cff0da9e696c360fff592cb5f51b6419e4d6.tar.bz2 | |
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>
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index fce0207..d913888 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -296,6 +296,7 @@ struct mddev_s unsigned long chunksize; unsigned long daemon_sleep; /* how many seconds between updates? */ unsigned long max_write_behind; /* write-behind mode */ + int external; } bitmap_info; struct list_head all_mddevs; |