ext4: add normal write support for inline data
For a normal write case (not journalled write, not delayed
allocation), we write to the inline if the file is small and convert
it to an extent based file when the write is larger than the max
inline size.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 1dc19a7..f2659f5 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -42,6 +42,7 @@
#include <linux/fiemap.h>
#include "ext4_jbd2.h"
#include "ext4_extents.h"
+#include "xattr.h"
#include <trace/events/ext4.h>
@@ -2310,7 +2311,13 @@
int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks, int chunk)
{
int index;
- int depth = ext_depth(inode);
+ int depth;
+
+ /* If we are converting the inline data, only one is needed here. */
+ if (ext4_has_inline_data(inode))
+ return 1;
+
+ depth = ext_depth(inode);
if (chunk)
index = depth * 2;