[PATCH] md/bitmap: remove dead code from md/bitmap
bitmap_active is never called, and the BITMAP_ACTIVE flag is never users or tested, so discard them both. Also remove some out-of-date 'todo' comments. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -14,9 +14,6 @@
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*
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* flush after percent set rather than just time based. (maybe both).
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* wait if count gets too high, wake when it drops to half.
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* allow bitmap to be mirrored with superblock (before or after...)
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* allow hot-add to re-instate a current device.
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* allow hot-add of bitmap after quiessing device
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*/
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#include <linux/module.h>
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@ -70,23 +67,6 @@ static inline char * bmname(struct bitmap *bitmap)
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return bitmap->mddev ? mdname(bitmap->mddev) : "mdX";
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}
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/*
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* test if the bitmap is active
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*/
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int bitmap_active(struct bitmap *bitmap)
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{
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unsigned long flags;
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int res = 0;
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if (!bitmap)
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return res;
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spin_lock_irqsave(&bitmap->lock, flags);
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res = bitmap->flags & BITMAP_ACTIVE;
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spin_unlock_irqrestore(&bitmap->lock, flags);
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return res;
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}
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#define WRITE_POOL_SIZE 256
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/*
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@ -1496,8 +1476,6 @@ int bitmap_create(mddev_t *mddev)
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if (!bitmap->bp)
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goto error;
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bitmap->flags |= BITMAP_ACTIVE;
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/* now that we have some pages available, initialize the in-memory
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* bitmap from the on-disk bitmap */
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start = 0;
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