* The file_operations structs are not static because they
* are also used in linux/fs/fifo.c to do operations on FIFOs.
*/
-struct file_operations read_fifo_fops = {
+const struct file_operations read_fifo_fops = {
.llseek = no_llseek,
.read = pipe_read,
.readv = pipe_readv,
.fasync = pipe_read_fasync,
};
-struct file_operations write_fifo_fops = {
+const struct file_operations write_fifo_fops = {
.llseek = no_llseek,
.read = bad_pipe_r,
.write = pipe_write,
.fasync = pipe_write_fasync,
};
-struct file_operations rdwr_fifo_fops = {
+const struct file_operations rdwr_fifo_fops = {
.llseek = no_llseek,
.read = pipe_read,
.readv = pipe_readv,
{
struct pipe_inode_info *info;
- info = kmalloc(sizeof(struct pipe_inode_info), GFP_KERNEL);
+ info = kzalloc(sizeof(struct pipe_inode_info), GFP_KERNEL);
if (!info)
goto fail_page;
- memset(info, 0, sizeof(*info));
inode->i_pipe = info;
init_waitqueue_head(PIPE_WAIT(*inode));
return NULL;
}
-static struct vfsmount *pipe_mnt;
+static struct vfsmount *pipe_mnt __read_mostly;
static int pipefs_delete_dentry(struct dentry *dentry)
{
return 1;