commit f3ad16158f9cd2dfe6f81cec052de8349e85c622
author Nick Desaulniers <ndesaulniers@google.com> Mon Jul 18 12:45:17 2016 -0700
committer chrmhoffmann <chrmhoffmann@gmail.com> Sat Aug 12 18:02:14 2017 +0200
tree 110d8956e0e4d6d288b3004d8592f4356fecb882
parent 571fe30245747cb853ba3628365a0a00729b72c6

fs: ext4: disable support for fallocate FALLOC_FL_PUNCH_HOLE

Bug: 28760453
Change-Id: I019c2de559db9e4b95860ab852211b456d78c4ca
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

fs/ext4/inode.c

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c77b0bd..8055129 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3338,6 +3338,7 @@
 
 int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
 {
+#if 0
 	struct inode *inode = file->f_path.dentry->d_inode;
 	if (!S_ISREG(inode->i_mode))
 		return -EOPNOTSUPP;
@@ -3353,6 +3354,12 @@
 	}
 
 	return ext4_ext_punch_hole(file, offset, length);
+#else
+	/*
+	 * Disabled as per b/28760453
+	 */
+	return -EOPNOTSUPP;
+#endif
 }
 
 /*