X-Git-Url: http://git.sven.stormbind.net/?a=blobdiff_plain;f=include%2Fexfat_fs.h;h=e120707385af92f83c6017fba4c9fe4de92e58d4;hb=2a0281992d71d123dc8caa7028d0faf6f2adc08b;hp=d35b12c02761642aa0eb6e08319e8807c7b9f809;hpb=fa2bead8d3f2203fb7b22d801443109a52808490;p=sven%2Fexfatprogs.git

diff --git a/include/exfat_fs.h b/include/exfat_fs.h
index d35b12c..e120707 100644
--- a/include/exfat_fs.h
+++ b/include/exfat_fs.h
@@ -45,7 +45,8 @@ struct exfat {
 	unsigned int		disk_bitmap_size;
 	__u16			*upcase_table;
 	clus_t			start_clu;
-	char			*zero_cluster;
+	unsigned int		buffer_count;
+	struct buffer_desc	*lookup_buffer; /* for dentry set lookup */
 };
 
 struct exfat_dentry_loc {
@@ -64,7 +65,7 @@ struct buffer_desc {
 	__u32		p_clus;
 	unsigned int	offset;
 	char		*buffer;
-	char		*dirty;
+	char		dirty[EXFAT_BITMAP_SIZE(4 * KB / 512)];
 };
 
 struct exfat *exfat_alloc_exfat(struct exfat_blk_dev *blk_dev, struct pbr *bs);
@@ -82,7 +83,11 @@ int exfat_resolve_path(struct path_resolve_ctx *ctx, struct exfat_inode *child);
 int exfat_resolve_path_parent(struct path_resolve_ctx *ctx,
 			      struct exfat_inode *parent, struct exfat_inode *child);
 
-struct buffer_desc *exfat_alloc_buffer(int count,
-				       unsigned int clu_size, unsigned int sect_size);
-void exfat_free_buffer(struct buffer_desc *bd, int count);
+struct buffer_desc *exfat_alloc_buffer(struct exfat *exfat);
+void exfat_free_buffer(const struct exfat *exfat, struct buffer_desc *bd);
+
+static inline unsigned int exfat_get_read_size(const struct exfat *exfat)
+{
+	return MIN(exfat->clus_size, 4 * KB);
+}
 #endif