X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fufs%2Futil.h;h=06d344839c42477f85141a9b6a6a3d95c4a33ca7;hb=e8788babe6ddb35ab041a146d6b3e18874513566;hp=406981fff5e7ca01317a7aa26c34f803827ec7fc;hpb=1d77062b1402aef5b26e1d3776991126e8026bde;p=linux-2.6-omap-h63xx.git

diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 406981fff5e..06d344839c4 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -251,6 +251,14 @@ extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struc
 #define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
 extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
 
+/* This functions works with cache pages*/
+extern struct page *ufs_get_locked_page(struct address_space *mapping,
+					pgoff_t index);
+static inline void ufs_put_locked_page(struct page *page)
+{
+       unlock_page(page);
+       page_cache_release(page);
+}
 
 
 /*
@@ -291,14 +299,28 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
 
 #define ubh_get_addr16(ubh,begin) \
 	(((__fs16*)((ubh)->bh[(begin) >> (uspi->s_fshift-1)]->b_data)) + \
-	((begin) & (uspi->fsize>>1) - 1)))
+	((begin) & ((uspi->fsize>>1) - 1)))
 
 #define ubh_get_addr32(ubh,begin) \
 	(((__fs32*)((ubh)->bh[(begin) >> (uspi->s_fshift-2)]->b_data)) + \
 	((begin) & ((uspi->s_fsize>>2) - 1)))
 
+#define ubh_get_addr64(ubh,begin) \
+	(((__fs64*)((ubh)->bh[(begin) >> (uspi->s_fshift-3)]->b_data)) + \
+	((begin) & ((uspi->s_fsize>>3) - 1)))
+
 #define ubh_get_addr ubh_get_addr8
 
+static inline void *ubh_get_data_ptr(struct ufs_sb_private_info *uspi,
+				     struct ufs_buffer_head *ubh,
+				     u64 blk)
+{
+	if (uspi->fs_magic == UFS2_MAGIC)
+		return ubh_get_addr64(ubh, blk);
+	else
+		return ubh_get_addr32(ubh, blk);
+}
+
 #define ubh_blkmap(ubh,begin,bit) \
 	((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
 
@@ -499,3 +521,46 @@ static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
 	if (fragsize > 0 && fragsize < uspi->s_fpb)
 		fs32_add(sb, &fraglist[fragsize], cnt);
 }
+
+static inline void *ufs_get_direct_data_ptr(struct ufs_sb_private_info *uspi,
+					    struct ufs_inode_info *ufsi,
+					    unsigned blk)
+{
+	BUG_ON(blk > UFS_TIND_BLOCK);
+	return uspi->fs_magic == UFS2_MAGIC ?
+		(void *)&ufsi->i_u1.u2_i_data[blk] :
+		(void *)&ufsi->i_u1.i_data[blk];
+}
+
+static inline u64 ufs_data_ptr_to_cpu(struct super_block *sb, void *p)
+{
+	return UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC ?
+		fs64_to_cpu(sb, *(__fs64 *)p) :
+		fs32_to_cpu(sb, *(__fs32 *)p);
+}
+
+static inline void ufs_cpu_to_data_ptr(struct super_block *sb, void *p, u64 val)
+{
+	if (UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC)
+		*(__fs64 *)p = cpu_to_fs64(sb, val);
+	else
+		*(__fs32 *)p = cpu_to_fs32(sb, val);
+}
+
+static inline void ufs_data_ptr_clear(struct ufs_sb_private_info *uspi,
+				      void *p)
+{
+	if (uspi->fs_magic == UFS2_MAGIC)
+		*(__fs64 *)p = 0;
+	else
+		*(__fs32 *)p = 0;
+}
+
+static inline int ufs_is_data_ptr_zero(struct ufs_sb_private_info *uspi,
+				       void *p)
+{
+	if (uspi->fs_magic == UFS2_MAGIC)
+		return *(__fs64 *)p == 0;
+	else
+		return *(__fs32 *)p == 0;
+}