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>

2 files changed, 0 insertions, 42 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index be41e8bed3ab..043c83cb51f9 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -130,10 +130,6 @@ struct pid_entry {
                 { .proc_get_link = get_link } )
 #define REG(NAME, MODE, fops)                           \
         NOD(NAME, (S_IFREG|(MODE)), NULL, &fops, {})
-#define INF(NAME, MODE, read)                           \
-        NOD(NAME, (S_IFREG|(MODE)),                     \
-                NULL, &proc_info_file_operations,       \
-                { .proc_read = read } )
 #define ONE(NAME, MODE, show)                           \
         NOD(NAME, (S_IFREG|(MODE)),                     \
                 NULL, &proc_single_file_operations,     \
@@ -604,43 +600,6 @@ static const struct inode_operations proc_def_inode_operations = {
         .setattr        = proc_setattr,
 };
 
-#define PROC_BLOCK_SIZE (3*1024)                /* 4K page size but our output routines use some slack for overruns */
-
-static ssize_t proc_info_read(struct file * file, char __user * buf,
-                          size_t count, loff_t *ppos)
-{
-        struct inode * inode = file_inode(file);
-        unsigned long page;
-        ssize_t length;
-        struct task_struct *task = get_proc_task(inode);
-
-        length = -ESRCH;
-        if (!task)
-                goto out_no_task;
-
-        if (count > PROC_BLOCK_SIZE)
-                count = PROC_BLOCK_SIZE;
-
-        length = -ENOMEM;
-        if (!(page = __get_free_page(GFP_TEMPORARY)))
-                goto out;
-
-        length = PROC_I(inode)->op.proc_read(task, (char*)page);
-
-        if (length >= 0)
-                length = simple_read_from_buffer(buf, count, ppos, (char *)page, length);
-        free_page(page);
-out:
-        put_task_struct(task);
-out_no_task:
-        return length;
-}
-
-static const struct file_operations proc_info_file_operations = {
-        .read           = proc_info_read,
-        .llseek         = generic_file_llseek,
-};
-
 static int proc_single_show(struct seq_file *m, void *v)
 {
         struct inode *inode = m->private;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index a17accbd05ee..a024cf7b260f 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -52,7 +52,6 @@ struct proc_dir_entry {
 
 union proc_op {
         int (*proc_get_link)(struct dentry *, struct path *);
-        int (*proc_read)(struct task_struct *task, char *page);
         int (*proc_show)(struct seq_file *m,
                 struct pid_namespace *ns, struct pid *pid,
                 struct task_struct *task);