From: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
This patch makes mext_next_extent non static and moves the
defination of get_ext_path to ext4_extents.h as these 2
functions are used by EXT4_IOC_TRANSFER_BLOCK_RANGE introduced
in next patch.
Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
Signed-off-by: Ashish Sangwan <a.sangwan@xxxxxxxxxxx>
---
fs/ext4/ext4.h | 2 ++
fs/ext4/ext4_extents.h | 28 ++++++++++++++++++++++++++++
fs/ext4/move_extent.c | 31 +------------------------------
3 files changed, 31 insertions(+), 30 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index df2c411..246a03a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2712,6 +2712,8 @@ void ext4_inode_double_unlock(struct inode *inode1, struct inode *inode2);
extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
__u64 start_orig, __u64 start_donor,
__u64 len, __u64 *moved_len);
+extern int mext_next_extent(struct inode *inode, struct ext4_ext_path *path,
+ struct ext4_extent **extent);
/* page-io.c */
extern int __init ext4_init_pageio(void);
diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h
index cc113cc..68f52a1 100644
--- a/fs/ext4/ext4_extents.h
+++ b/fs/ext4/ext4_extents.h
@@ -278,5 +278,33 @@ static inline void ext4_idx_store_pblock(struct ext4_extent_idx *ix,
int __ext4_ext_dirty(const char *where, unsigned int line, handle_t *handle,
struct inode *inode, struct ext4_ext_path *path);
+/**
+ * get_ext_path - Find an extent path for designated logical block number.
+ *
+ * @inode: an inode which is searched
+ * @lblock: logical block number to find an extent path
+ * @path: pointer to an extent path pointer (for output)
+ *
+ * ext4_ext_find_extent wrapper. Return 0 on success, or a negative error value
+ * on failure.
+ */
+static inline int
+get_ext_path(struct inode *inode, ext4_lblk_t lblock,
+ struct ext4_ext_path **orig_path)
+{
+ int ret = 0;
+ struct ext4_ext_path *path;
+
+ path = ext4_ext_find_extent(inode, lblock, *orig_path);
+ if (IS_ERR(path))
+ ret = PTR_ERR(path);
+ else if (path[ext_depth(inode)].p_ext == NULL)
+ ret = -ENODATA;
+ else
+ *orig_path = path;
+
+ return ret;
+}
+
#endif /* _EXT4_EXTENTS */
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index e86dddb..dd1e358 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -21,34 +21,6 @@
#include "ext4_extents.h"
/**
- * get_ext_path - Find an extent path for designated logical block number.
- *
- * @inode: an inode which is searched
- * @lblock: logical block number to find an extent path
- * @path: pointer to an extent path pointer (for output)
- *
- * ext4_ext_find_extent wrapper. Return 0 on success, or a negative error value
- * on failure.
- */
-static inline int
-get_ext_path(struct inode *inode, ext4_lblk_t lblock,
- struct ext4_ext_path **orig_path)
-{
- int ret = 0;
- struct ext4_ext_path *path;
-
- path = ext4_ext_find_extent(inode, lblock, *orig_path);
- if (IS_ERR(path))
- ret = PTR_ERR(path);
- else if (path[ext_depth(inode)].p_ext == NULL)
- ret = -ENODATA;
- else
- *orig_path = path;
-
- return ret;
-}
-
-/**
* copy_extent_status - Copy the extent's initialization status
*
* @src: an extent for getting initialize status
@@ -76,8 +48,7 @@ copy_extent_status(struct ext4_extent *src, struct ext4_extent *dest)
* ext4_ext_path structure refers to the last extent, or a negative error
* value on failure.
*/
-static int
-mext_next_extent(struct inode *inode, struct ext4_ext_path *path,
+int mext_next_extent(struct inode *inode, struct ext4_ext_path *path,
struct ext4_extent **extent)
{
struct ext4_extent_header *eh;
--
1.7.9.5
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