[PATCH 3.14 18/23] ext4: address UBSAN warning in mb_find_order_for_block()

3.14-stable review patch. If anyone has any objections, please let me know. -- From: Nicolai Stange commit b5cb316cdf3a3f5f6125412b0f6065185240cfdc upstream. Currently, in mb_find_order_for_block(), there's a loop like the following: while (order <=

[PATCH 3.14 18/23] ext4: address UBSAN warning in mb_find_order_for_block()

3.14-stable review patch. If anyone has any objections, please let me know. -- From: Nicolai Stange commit b5cb316cdf3a3f5f6125412b0f6065185240cfdc upstream. Currently, in mb_find_order_for_block(), there's a loop like the following: while (order <= e4b->bd_blkbits + 1) {