simple_open: automatically convert to simple_open()

Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op.  This leads to a
proliferation of the default_open() implementation across the entire
tree.

Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().

This replacement was done with the following semantic patch:

<smpl>
@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
|
-f->private_data = i->i_private;
)
-return 0;
-}

@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};
</smpl>

[[email protected]: checkpatch fixes]
Signed-off-by: Stephen Boyd <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Julia Lawall <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Stephen Boyd 2012-04-05 14:25:11 -07:00 • committed by Linus Torvalds
commit 234e340582
63 changed files with 176 additions and 572 deletions

View file

@ -50,16 +50,9 @@ static ssize_t rproc_trace_read(struct file *filp, char __user *userbuf,
return simple_read_from_buffer(userbuf, count, ppos, trace->va, len);
}
static int rproc_open_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static const struct file_operations trace_rproc_ops = {
.read = rproc_trace_read,
.open = rproc_open_generic,
.open = simple_open,
.llseek = generic_file_llseek,
};
@ -94,7 +87,7 @@ static ssize_t rproc_state_read(struct file *filp, char __user *userbuf,
static const struct file_operations rproc_state_ops = {
.read = rproc_state_read,
.open = rproc_open_generic,
.open = simple_open,
.llseek = generic_file_llseek,
};
@ -114,7 +107,7 @@ static ssize_t rproc_name_read(struct file *filp, char __user *userbuf,
static const struct file_operations rproc_name_ops = {
.read = rproc_name_read,
.open = rproc_open_generic,
.open = simple_open,
.llseek = generic_file_llseek,
};