udf: cache struct udf_inode_info

[linux-2.6-omap-h63xx.git] / fs / udf / misc.c

diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 2af44702633b4e587dbfa3bca98db9aa2d85a80f..a1d6da0caf7132121e7b5d69ea880aeeb97d1875 100644 (file)
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -51,17 +51,18 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
        uint8_t *ea = NULL, *ad = NULL;
        int offset;
        uint16_t crclen;
+       struct udf_inode_info *iinfo = UDF_I(inode);
 
-       ea = UDF_I(inode)->i_ext.i_data;
-       if (UDF_I(inode)->i_lenEAttr) {
-               ad = UDF_I(inode)->i_ext.i_data + UDF_I(inode)->i_lenEAttr;
+       ea = iinfo->i_ext.i_data;
+       if (iinfo->i_lenEAttr) {
+               ad = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
        } else {
                ad = ea;
                size += sizeof(struct extendedAttrHeaderDesc);
        }
 
        offset = inode->i_sb->s_blocksize - udf_file_entry_alloc_offset(inode) -
-               UDF_I(inode)->i_lenAlloc;
+               iinfo->i_lenAlloc;
 
        /* TODO - Check for FreeEASpace */
 
@@ -69,21 +70,21 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
                struct extendedAttrHeaderDesc *eahd;
                eahd = (struct extendedAttrHeaderDesc *)ea;
 
-               if (UDF_I(inode)->i_lenAlloc)
-                       memmove(&ad[size], ad, UDF_I(inode)->i_lenAlloc);
+               if (iinfo->i_lenAlloc)
+                       memmove(&ad[size], ad, iinfo->i_lenAlloc);
 
-               if (UDF_I(inode)->i_lenEAttr) {
+               if (iinfo->i_lenEAttr) {
                        /* check checksum/crc */
                        if (eahd->descTag.tagIdent !=
                                        cpu_to_le16(TAG_IDENT_EAHD) ||
                            le32_to_cpu(eahd->descTag.tagLocation) !=
-                                       UDF_I(inode)->i_location.logicalBlockNum)
+                                       iinfo->i_location.logicalBlockNum)
                                return NULL;
                } else {
                        struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
 
                        size -= sizeof(struct extendedAttrHeaderDesc);
-                       UDF_I(inode)->i_lenEAttr +=
+                       iinfo->i_lenEAttr +=
                                sizeof(struct extendedAttrHeaderDesc);
                        eahd->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EAHD);
                        if (sbi->s_udfrev >= 0x0200)
@@ -93,15 +94,15 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
                        eahd->descTag.tagSerialNum =
                                        cpu_to_le16(sbi->s_serial_number);
                        eahd->descTag.tagLocation = cpu_to_le32(
-                               UDF_I(inode)->i_location.logicalBlockNum);
+                                       iinfo->i_location.logicalBlockNum);
                        eahd->impAttrLocation = cpu_to_le32(0xFFFFFFFF);
                        eahd->appAttrLocation = cpu_to_le32(0xFFFFFFFF);
                }
 
-               offset = UDF_I(inode)->i_lenEAttr;
+               offset = iinfo->i_lenEAttr;
                if (type < 2048) {
                        if (le32_to_cpu(eahd->appAttrLocation) <
-                                       UDF_I(inode)->i_lenEAttr) {
+                                       iinfo->i_lenEAttr) {
                                uint32_t aal =
                                        le32_to_cpu(eahd->appAttrLocation);
                                memmove(&ea[offset - aal + size],
@@ -111,7 +112,7 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
                                                cpu_to_le32(aal + size);
                        }
                        if (le32_to_cpu(eahd->impAttrLocation) <
-                                       UDF_I(inode)->i_lenEAttr) {
+                                       iinfo->i_lenEAttr) {
                                uint32_t ial =
                                        le32_to_cpu(eahd->impAttrLocation);
                                memmove(&ea[offset - ial + size],
@@ -122,7 +123,7 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
                        }
                } else if (type < 65536) {
                        if (le32_to_cpu(eahd->appAttrLocation) <
-                                       UDF_I(inode)->i_lenEAttr) {
+                                       iinfo->i_lenEAttr) {
                                uint32_t aal =
                                        le32_to_cpu(eahd->appAttrLocation);
                                memmove(&ea[offset - aal + size],
@@ -138,7 +139,7 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
                eahd->descTag.descCRC = cpu_to_le16(udf_crc((char *)eahd +
                                                sizeof(tag), crclen, 0));
                eahd->descTag.tagChecksum = udf_tag_checksum(&eahd->descTag);
-               UDF_I(inode)->i_lenEAttr += size;
+               iinfo->i_lenEAttr += size;
                return (struct genericFormat *)&ea[offset];
        }
        if (loc & 0x02)
@@ -153,10 +154,11 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
        struct genericFormat *gaf;
        uint8_t *ea = NULL;
        uint32_t offset;
+       struct udf_inode_info *iinfo = UDF_I(inode);
 
-       ea = UDF_I(inode)->i_ext.i_data;
+       ea = iinfo->i_ext.i_data;
 
-       if (UDF_I(inode)->i_lenEAttr) {
+       if (iinfo->i_lenEAttr) {
                struct extendedAttrHeaderDesc *eahd;
                eahd = (struct extendedAttrHeaderDesc *)ea;
 
@@ -164,7 +166,7 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
                if (eahd->descTag.tagIdent !=
                                cpu_to_le16(TAG_IDENT_EAHD) ||
                    le32_to_cpu(eahd->descTag.tagLocation) !=
-                               UDF_I(inode)->i_location.logicalBlockNum)
+                               iinfo->i_location.logicalBlockNum)
                        return NULL;
 
                if (type < 2048)
@@ -174,7 +176,7 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
                else
                        offset = le32_to_cpu(eahd->appAttrLocation);
 
-               while (offset < UDF_I(inode)->i_lenEAttr) {
+               while (offset < iinfo->i_lenEAttr) {
                        gaf = (struct genericFormat *)&ea[offset];
                        if (le32_to_cpu(gaf->attrType) == type &&
                                        gaf->attrSubtype == subtype)