hfsplus: fix HFSPLUS_SB calling convention

HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock
information like all other FOO_SB macros, but dereference the pointer in a way
that made it look like a direct struct derefence.  This only works as long
as the HFSPLUS_SB macro is used directly and prevents us from keepig a local
hfsplus_sb_info pointer.  Fix the calling convention and introduce a local
sbi variable in all functions that use it constantly.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index e49fcee1e293..96e2128748f2 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -61,12 +61,12 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
         if (id == HFSPLUS_EXT_CNID) {
                 tree->keycmp = hfsplus_ext_cmp_key;
         } else if (id == HFSPLUS_CAT_CNID) {
-                if ((HFSPLUS_SB(sb).flags & HFSPLUS_SB_HFSX) &&
+                if ((HFSPLUS_SB(sb)->flags & HFSPLUS_SB_HFSX) &&
                     (head->key_type == HFSPLUS_KEY_BINARY))
                         tree->keycmp = hfsplus_cat_bin_cmp_key;
                 else {
                         tree->keycmp = hfsplus_cat_case_cmp_key;
-                        HFSPLUS_SB(sb).flags |= HFSPLUS_SB_CASEFOLD;
+                        HFSPLUS_SB(sb)->flags |= HFSPLUS_SB_CASEFOLD;
                 }
         } else {
                 printk(KERN_ERR "hfs: unknown B*Tree requested\n");
@@ -200,9 +200,9 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
                         return ERR_PTR(res);
                 HFSPLUS_I(inode).phys_size = inode->i_size =
                                 (loff_t)HFSPLUS_I(inode).alloc_blocks <<
-                                HFSPLUS_SB(tree->sb).alloc_blksz_shift;
+                                HFSPLUS_SB(tree->sb)->alloc_blksz_shift;
                 HFSPLUS_I(inode).fs_blocks = HFSPLUS_I(inode).alloc_blocks <<
-                                             HFSPLUS_SB(tree->sb).fs_shift;
+                                             HFSPLUS_SB(tree->sb)->fs_shift;
                 inode_set_bytes(inode, inode->i_size);
                 count = inode->i_size >> tree->node_size_shift;
                 tree->free_nodes = count - tree->node_count;