Add CONFIG_EXTENT_FULL compilation flag

This switch decides which extent implementation will
be chosen to compile.

5 files changed, 22 insertions, 4 deletions

diff --git a/lwext4/ext4_config.h b/lwext4/ext4_config.h
index 62382f5..5f9f94f 100644
--- a/lwext4/ext4_config.h
+++ b/lwext4/ext4_config.h
@@ -142,6 +142,11 @@
 #define CONFIG_HAVE_OWN_OFLAGS 0
 #endif
 
+/**@brief   Use full extent implemrntation*/
+#ifndef CONFIG_EXTENT_FULL
+#define CONFIG_EXTENT_FULL 1
+#endif
+
 #ifdef __GNUC__
 #ifndef __unused
 #define __unused __attribute__ ((__unused__))
diff --git a/lwext4/ext4_extent.c b/lwext4/ext4_extent.c
index df9f834..eb3d816 100644
--- a/lwext4/ext4_extent.c
+++ b/lwext4/ext4_extent.c
@@ -49,6 +49,8 @@
 #include <string.h>
 #include <stdlib.h>
 
+#if !CONFIG_EXTENT_FULL
+
 uint32_t ext4_extent_get_first_block(struct ext4_extent *extent)
 {
 	return to_le32(extent->first_block);
@@ -988,6 +990,7 @@ finish:
 	return rc;
 }
 
+#endif
 /**
  * @}
  */
diff --git a/lwext4/ext4_extent.h b/lwext4/ext4_extent.h
index 5808e8d..a121af9 100644
--- a/lwext4/ext4_extent.h
+++ b/lwext4/ext4_extent.h
@@ -44,6 +44,8 @@
 #include "ext4_config.h"
 #include "ext4_types.h"
 
+#if !CONFIG_EXTENT_FULL
+
 /**@brief Get logical number of the block covered by extent.
  * @param extent Extent to load number from
  * @return Logical number of the first block covered by extent */
@@ -183,7 +185,9 @@ int ext4_extent_release_blocks_from(struct ext4_inode_ref *inode_ref,
 int ext4_extent_append_block(struct ext4_inode_ref *inode_ref, uint32_t *iblock,
 			     uint32_t *fblock, bool update_size);
 
+#endif
+
 #endif /* EXT4_EXTENT_H_ */
-       /**
-	* @}
-	*/
+/**
+* @}
+*/
diff --git a/lwext4/ext4_extent_full.c b/lwext4/ext4_extent_full.c
index ddcea28..5231c94 100644
--- a/lwext4/ext4_extent_full.c
+++ b/lwext4/ext4_extent_full.c
@@ -26,6 +26,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "ext4_config.h"
 #include "ext4_blockdev.h"
 #include "ext4_super.h"
 #include "ext4_balloc.h"
@@ -36,7 +37,9 @@
 #include <inttypes.h>
 #include <stddef.h>
 
-#include "ext4_extent.h"
+#include "ext4_extent_full.h"
+
+#if CONFIG_EXTENT_FULL
 
 /*
  * used by extent splitting.
@@ -1762,3 +1765,4 @@ out2:
 
 	return err;
 }
+#endif
diff --git a/lwext4/ext4_extent_full.h b/lwext4/ext4_extent_full.h
index 076b5b8..61ff6d9 100644
--- a/lwext4/ext4_extent_full.h
+++ b/lwext4/ext4_extent_full.h
@@ -32,6 +32,7 @@
 #include "ext4_config.h"
 #include "ext4_types.h"
 
+#if CONFIG_EXTENT_FULL
 int ext4_ext_get_blocks(struct ext4_inode_ref *inode_ref, ext4_fsblk_t iblock,
 			uint32_t max_blocks, ext4_fsblk_t *result, bool create,
 			uint32_t *blocks_count);
@@ -40,5 +41,6 @@ int ext4_ext_tree_init(struct ext4_inode_ref *inode_ref);
 
 int ext4_ext_remove_space(struct ext4_inode_ref *inode_ref, ext4_lblk_t from,
 			  ext4_lblk_t to);
+#endif
 
 #endif /* EXT4_EXTENT_H_ */