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-rw-r--r--fs/jfs/jfs_filsys.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/jfs/jfs_filsys.h b/fs/jfs/jfs_filsys.h
index b3f5463fbe5..b67d64671bb 100644
--- a/fs/jfs/jfs_filsys.h
+++ b/fs/jfs/jfs_filsys.h
@@ -45,6 +45,9 @@
/* mount time flag to disable journaling to disk */
#define JFS_NOINTEGRITY 0x00000040
+/* mount time flag to enable TRIM to ssd disks */
+#define JFS_DISCARD 0x00000080
+
/* commit option */
#define JFS_COMMIT 0x00000f00 /* commit option mask */
#define JFS_GROUPCOMMIT 0x00000100 /* group (of 1) commit */