From ef4d662cfca9f882666ea8cbeb78fcb1a5fd6d6a Mon Sep 17 00:00:00 2001 From: Nick Desaulniers Date: Mon, 18 Jul 2016 12:45:17 -0700 Subject: [PATCH] fs: ext4: disable support for fallocate FALLOC_FL_PUNCH_HOLE Bug: 28760453 Change-Id: I019c2de559db9e4b95860ab852211b456d78c4ca Signed-off-by: Nick Desaulniers Git-repo: https://android.googlesource.com/kernel/msm.git Git-commit: 8cdac916476ae01959b559a0dfae9f8b155fc9f3 Signed-off-by: Dennis Cagle --- fs/ext4/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b15e6edb8f2c..933f1866b811 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3602,6 +3602,7 @@ int ext4_can_truncate(struct inode *inode) int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length) { +#if 0 struct super_block *sb = inode->i_sb; ext4_lblk_t first_block, stop_block; struct address_space *mapping = inode->i_mapping; @@ -3725,6 +3726,12 @@ out_dio: out_mutex: mutex_unlock(&inode->i_mutex); return ret; +#else + /* + * Disabled as per b/28760453 + */ + return -EOPNOTSUPP; +#endif } int ext4_inode_attach_jinode(struct inode *inode)