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-rw-r--r--include/linux/ext4_fs_i.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/ext4_fs_i.h b/include/linux/ext4_fs_i.h
index 18a6ce98537..40ce04a52b0 100644
--- a/include/linux/ext4_fs_i.h
+++ b/include/linux/ext4_fs_i.h
@@ -65,6 +65,16 @@ struct ext4_block_alloc_info {
#define rsv_end rsv_window._rsv_end
/*
+ * storage for cached extent
+ */
+struct ext4_ext_cache {
+ __u32 ec_start;
+ __u32 ec_block;
+ __u32 ec_len; /* must be 32bit to return holes */
+ __u32 ec_type;
+};
+
+/*
* third extended file system inode data in memory
*/
struct ext4_inode_info {
@@ -142,6 +152,9 @@ struct ext4_inode_info {
*/
struct mutex truncate_mutex;
struct inode vfs_inode;
+
+ unsigned long i_ext_generation;
+ struct ext4_ext_cache i_cached_extent;
};
#endif /* _LINUX_EXT4_FS_I */