From f0ac071fc6660c1d8d4b0d0dbe7642dd1274e4a5 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 --- fs/ext4/inode.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 589d6d3134e01..bf37388aa01b7 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3503,6 +3503,7 @@ 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; @@ -3626,6 +3627,12 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length) 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)