udf: Remove repeated loads blocksize

commit 79144954278d4bb5989f8b903adcac7a20ff2a5a upstream.

Store blocksize in a local variable in udf_fill_inode() since it is used
a lot of times.

Signed-off-by: Jan Kara <jack@suse.cz>
[bwh: Needed for the following fix. Backported to 3.16: adjust context.]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 2a706bb..5c996c1 100644 (file)
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1271,6 +1271,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
        struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
        struct udf_inode_info *iinfo = UDF_I(inode);
        unsigned int link_count;
+       int bs = inode->i_sb->s_blocksize;
 
        fe = (struct fileEntry *)bh->b_data;
        efe = (struct extendedFileEntry *)bh->b_data;
@@ -1291,41 +1292,38 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
        if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_EFE)) {
                iinfo->i_efe = 1;
                iinfo->i_use = 0;
-               if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+               if (udf_alloc_i_data(inode, bs -
                                        sizeof(struct extendedFileEntry))) {
                        make_bad_inode(inode);
                        return;
                }
                memcpy(iinfo->i_ext.i_data,
                       bh->b_data + sizeof(struct extendedFileEntry),
-                      inode->i_sb->s_blocksize -
-                                       sizeof(struct extendedFileEntry));
+                      bs - sizeof(struct extendedFileEntry));
        } else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
                iinfo->i_efe = 0;
                iinfo->i_use = 0;
-               if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
-                                               sizeof(struct fileEntry))) {
+               if (udf_alloc_i_data(inode, bs - sizeof(struct fileEntry))) {
                        make_bad_inode(inode);
                        return;
                }
                memcpy(iinfo->i_ext.i_data,
                       bh->b_data + sizeof(struct fileEntry),
-                      inode->i_sb->s_blocksize - sizeof(struct fileEntry));
+                      bs - sizeof(struct fileEntry));
        } else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_USE)) {
                iinfo->i_efe = 0;
                iinfo->i_use = 1;
                iinfo->i_lenAlloc = le32_to_cpu(
                                ((struct unallocSpaceEntry *)bh->b_data)->
                                 lengthAllocDescs);
-               if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
+               if (udf_alloc_i_data(inode, bs -
                                        sizeof(struct unallocSpaceEntry))) {
                        make_bad_inode(inode);
                        return;
                }
                memcpy(iinfo->i_ext.i_data,
                       bh->b_data + sizeof(struct unallocSpaceEntry),
-                      inode->i_sb->s_blocksize -
-                                       sizeof(struct unallocSpaceEntry));
+                      bs - sizeof(struct unallocSpaceEntry));
                return;
        }
 
@@ -1414,8 +1412,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                        return;
                }
                /* File in ICB has to fit in there... */
-               if (inode->i_size > inode->i_sb->s_blocksize -
-                                       udf_file_entry_alloc_offset(inode)) {
+               if (inode->i_size > bs - udf_file_entry_alloc_offset(inode)) {
                        make_bad_inode(inode);
                        return;
                }