proc: remove INF macro
If you're applying this patch, all /proc/$PID/* files were converted to seq_file interface and this code became unused. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -130,10 +130,6 @@ struct pid_entry {
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{ .proc_get_link = get_link } )
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#define REG(NAME, MODE, fops) \
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NOD(NAME, (S_IFREG|(MODE)), NULL, &fops, {})
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#define INF(NAME, MODE, read) \
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NOD(NAME, (S_IFREG|(MODE)), \
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NULL, &proc_info_file_operations, \
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{ .proc_read = read } )
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#define ONE(NAME, MODE, show) \
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NOD(NAME, (S_IFREG|(MODE)), \
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NULL, &proc_single_file_operations, \
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@ -604,43 +600,6 @@ static const struct inode_operations proc_def_inode_operations = {
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.setattr = proc_setattr,
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};
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#define PROC_BLOCK_SIZE (3*1024) /* 4K page size but our output routines use some slack for overruns */
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static ssize_t proc_info_read(struct file * file, char __user * buf,
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size_t count, loff_t *ppos)
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{
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struct inode * inode = file_inode(file);
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unsigned long page;
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ssize_t length;
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struct task_struct *task = get_proc_task(inode);
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length = -ESRCH;
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if (!task)
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goto out_no_task;
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if (count > PROC_BLOCK_SIZE)
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count = PROC_BLOCK_SIZE;
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length = -ENOMEM;
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if (!(page = __get_free_page(GFP_TEMPORARY)))
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goto out;
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length = PROC_I(inode)->op.proc_read(task, (char*)page);
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if (length >= 0)
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length = simple_read_from_buffer(buf, count, ppos, (char *)page, length);
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free_page(page);
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out:
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put_task_struct(task);
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out_no_task:
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return length;
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}
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static const struct file_operations proc_info_file_operations = {
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.read = proc_info_read,
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.llseek = generic_file_llseek,
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};
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static int proc_single_show(struct seq_file *m, void *v)
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{
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struct inode *inode = m->private;
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@ -52,7 +52,6 @@ struct proc_dir_entry {
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union proc_op {
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int (*proc_get_link)(struct dentry *, struct path *);
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int (*proc_read)(struct task_struct *task, char *page);
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int (*proc_show)(struct seq_file *m,
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struct pid_namespace *ns, struct pid *pid,
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struct task_struct *task);
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