udf: cache struct udf_inode_info

cache UDF_I(struct inode *) return values when there are
at least 2 uses in one function

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index cfe213fd3113..fc533345ab89 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -55,6 +55,7 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
         struct udf_sb_info *sbi = UDF_SB(sb);
         struct udf_part_map *map;
         struct udf_virtual_data *vdata;
+        struct udf_inode_info *iinfo;
 
         map = &sbi->s_partmaps[partition];
         vdata = &map->s_type_specific.s_virtual;
@@ -88,15 +89,14 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
 
         brelse(bh);
 
-        if (UDF_I(sbi->s_vat_inode)->i_location.partitionReferenceNum ==
-                                                                partition) {
+        iinfo = UDF_I(sbi->s_vat_inode);
+        if (iinfo->i_location.partitionReferenceNum == partition) {
                 udf_debug("recursive call to udf_get_pblock!\n");
                 return 0xFFFFFFFF;
         }
 
         return udf_get_pblock(sb, loc,
-                              UDF_I(sbi->s_vat_inode)->i_location.
-                                                        partitionReferenceNum,
+                              iinfo->i_location.partitionReferenceNum,
                               offset);
 }