power: rk818 charger: fix otg supply on/off error

[firefly-linux-kernel-4.4.55.git] / fs / ext4 / mballoc.c

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a235f3c20433e04ae7661af263be151e2d0fd8b7..2f53c3822daaf4151a131f2bc8cbc86541699763 100644 (file)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1259,6 +1259,7 @@ static void ext4_mb_unload_buddy(struct ext4_buddy *e4b)
 static int mb_find_order_for_block(struct ext4_buddy *e4b, int block)
 {
        int order = 1;
+       int bb_incr = 1 << (e4b->bd_blkbits - 1);
        void *bb;
 
        BUG_ON(e4b->bd_bitmap == e4b->bd_buddy);
@@ -1271,7 +1272,8 @@ static int mb_find_order_for_block(struct ext4_buddy *e4b, int block)
                        /* this block is part of buddy of order 'order' */
                        return order;
                }
-               bb += 1 << (e4b->bd_blkbits - order);
+               bb += bb_incr;
+               bb_incr >>= 1;
                order++;
        }
        return 0;
@@ -2576,7 +2578,7 @@ int ext4_mb_init(struct super_block *sb)
 {
        struct ext4_sb_info *sbi = EXT4_SB(sb);
        unsigned i, j;
-       unsigned offset;
+       unsigned offset, offset_incr;
        unsigned max;
        int ret;
 
@@ -2605,11 +2607,13 @@ int ext4_mb_init(struct super_block *sb)
 
        i = 1;
        offset = 0;
+       offset_incr = 1 << (sb->s_blocksize_bits - 1);
        max = sb->s_blocksize << 2;
        do {
                sbi->s_mb_offsets[i] = offset;
                sbi->s_mb_maxs[i] = max;
-               offset += 1 << (sb->s_blocksize_bits - i);
+               offset += offset_incr;
+               offset_incr = offset_incr >> 1;
                max = max >> 1;
                i++;
        } while (i <= sb->s_blocksize_bits + 1);