ext4_punch_hole 2629 fs/ext4/ext4.h extern int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length); ext4_punch_hole 4896 fs/ext4/extents.c return ext4_punch_hole(inode, offset, len); ext4_punch_hole 1402 include/trace/events/ext4.h DEFINE_EVENT(ext4__fallocate_mode, ext4_punch_hole,