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[PATCH] md: don't allow new md/bitmap file to be set if one already exists
... otherwise we loose a reference and can never free the file. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -2430,7 +2430,7 @@ static int set_bitmap_file(mddev_t *mddev, int fd)
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{
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int err;
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if (mddev->pers)
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if (mddev->pers || mddev->bitmap_file)
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return -EBUSY;
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mddev->bitmap_file = fget(fd);
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