From bab08ab9646288f1b0b72a7aaeecdff94bd62c18 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Fri, 9 Sep 2011 18:36:51 -0400 Subject: ext4: enforce bigalloc restrictions (e.g., no online resizing, etc.) At least initially if the bigalloc feature is enabled, we will not support non-extent mapped inodes, online resizing, online defrag, or the FITRIM ioctl. This simplifies the initial implementation. Signed-off-by: "Theodore Ts'o" --- fs/ext4/inode.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'fs/ext4/inode.c') diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 6ecc93979e48..904a9a623dab 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3358,6 +3358,11 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length) return -ENOTSUPP; } + if (EXT4_SB(inode->i_sb)->s_cluster_ratio > 1) { + /* TODO: Add support for bigalloc file systems */ + return -ENOTSUPP; + } + return ext4_ext_punch_hole(file, offset, length); } -- cgit v1.2.3