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-rw-r--r--fs/ext4/ioctl.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index e7f894bdb42..c0e5b8cf635 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -199,7 +199,7 @@ flags_err:
* need to allocate reservation structure for this inode
* before set the window size
*/
- mutex_lock(&ei->truncate_mutex);
+ down_write(&ei->i_data_sem);
if (!ei->i_block_alloc_info)
ext4_init_block_alloc_info(inode);
@@ -207,7 +207,7 @@ flags_err:
struct ext4_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
rsv->rsv_goal_size = rsv_window_size;
}
- mutex_unlock(&ei->truncate_mutex);
+ up_write(&ei->i_data_sem);
return 0;
}
case EXT4_IOC_GROUP_EXTEND: {