1 files changed, 12 insertions, 1 deletions

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index d13f3b509886..62cee2b6fe79 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1215,6 +1215,9 @@ struct ext4_sb_info {
 
         /* Kernel thread for multiple mount protection */
         struct task_struct *s_mmp_tsk;
+
+        /* record the last minlen when FITRIM is called. */
+        atomic_t s_last_trim_minblks;
 };
 
 static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
@@ -2080,11 +2083,19 @@ struct ext4_group_info {
                                          * 5 free 8-block regions. */
 };
 
-#define EXT4_GROUP_INFO_NEED_INIT_BIT   0
+#define EXT4_GROUP_INFO_NEED_INIT_BIT           0
+#define EXT4_GROUP_INFO_WAS_TRIMMED_BIT         1
 
 #define EXT4_MB_GRP_NEED_INIT(grp)      \
         (test_bit(EXT4_GROUP_INFO_NEED_INIT_BIT, &((grp)->bb_state)))
 
+#define EXT4_MB_GRP_WAS_TRIMMED(grp)    \
+        (test_bit(EXT4_GROUP_INFO_WAS_TRIMMED_BIT, &((grp)->bb_state)))
+#define EXT4_MB_GRP_SET_TRIMMED(grp)    \
+        (set_bit(EXT4_GROUP_INFO_WAS_TRIMMED_BIT, &((grp)->bb_state)))
+#define EXT4_MB_GRP_CLEAR_TRIMMED(grp)  \
+        (clear_bit(EXT4_GROUP_INFO_WAS_TRIMMED_BIT, &((grp)->bb_state)))
+
 #define EXT4_MAX_CONTENTION             8
 #define EXT4_CONTENTION_THRESHOLD       2