procfs: new helper - PDE_DATA(inode)
The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data. Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 1eb34c3..db66357 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -48,7 +48,7 @@
static ssize_t proc_scsi_host_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- struct Scsi_Host *shost = PDE(file_inode(file))->data;
+ struct Scsi_Host *shost = PDE_DATA(file_inode(file));
ssize_t ret = -ENOMEM;
char *page;
@@ -78,7 +78,7 @@
static int proc_scsi_host_open(struct inode *inode, struct file *file)
{
- return single_open_size(file, proc_scsi_show, PDE(inode)->data,
+ return single_open_size(file, proc_scsi_show, PDE_DATA(inode),
4 * PAGE_SIZE);
}