1 files changed, 3 insertions, 3 deletions

diff --git a/include/linux/ext4_fs_i.h b/include/linux/ext4_fs_i.h
index f1cd4934e46f..4377d249d378 100644
--- a/include/linux/ext4_fs_i.h
+++ b/include/linux/ext4_fs_i.h
@@ -139,16 +139,16 @@ struct ext4_inode_info {
         __u16 i_extra_isize;
 
         /*
-         * truncate_mutex is for serialising ext4_truncate() against
+         * i_data_sem is for serialising ext4_truncate() against
          * ext4_getblock().  In the 2.4 ext2 design, great chunks of inode's
          * data tree are chopped off during truncate. We can't do that in
          * ext4 because whenever we perform intermediate commits during
          * truncate, the inode and all the metadata blocks *must* be in a
          * consistent state which allows truncation of the orphans to restart
          * during recovery.  Hence we must fix the get_block-vs-truncate race
-         * by other means, so we have truncate_mutex.
+         * by other means, so we have i_data_sem.
          */
-        struct mutex truncate_mutex;
+        struct rw_semaphore i_data_sem;
         struct inode vfs_inode;
 
         unsigned long i_ext_generation;