Use the same approach as /proc/<pid>/wchan vs CONFIG_KALLSYSM.
--- 1.35/fs/proc/array.c Mon Nov 25 17:42:29 2002
+++ edited/fs/proc/array.c Tue Dec 17 23:07:37 2002
@@ -513,8 +513,9 @@
return len;
}
-ssize_t proc_pid_read_maps (struct task_struct *task, struct file * file, char * buf,
- size_t count, loff_t *ppos)
+#ifdef CONFIG_MMU
+ssize_t proc_pid_read_maps(struct task_struct *task, struct file *file,
+ char *buf, size_t count, loff_t *ppos)
{
struct mm_struct *mm;
struct vm_area_struct * map;
@@ -597,3 +598,4 @@
out:
return retval;
}
+#endif /* CONFIG_MMU */
===== fs/proc/base.c 1.35 vs edited =====
--- 1.35/fs/proc/base.c Tue Nov 26 14:29:39 2002
+++ edited/fs/proc/base.c Tue Dec 17 23:09:41 2002
@@ -75,7 +75,9 @@
E(PROC_PID_CMDLINE, "cmdline", S_IFREG|S_IRUGO),
E(PROC_PID_STAT, "stat", S_IFREG|S_IRUGO),
E(PROC_PID_STATM, "statm", S_IFREG|S_IRUGO),
+#ifdef CONFIG_MMU
E(PROC_PID_MAPS, "maps", S_IFREG|S_IRUGO),
+#endif
E(PROC_PID_MEM, "mem", S_IFREG|S_IRUSR|S_IWUSR),
E(PROC_PID_CWD, "cwd", S_IFLNK|S_IRWXUGO),
E(PROC_PID_ROOT, "root", S_IFLNK|S_IRWXUGO),
@@ -98,7 +100,6 @@
return PROC_I(inode)->type;
}
-ssize_t proc_pid_read_maps(struct task_struct*,struct file*,char*,size_t,loff_t*);
int proc_pid_stat(struct task_struct*,char*);
int proc_pid_status(struct task_struct*,char*);
int proc_pid_statm(struct task_struct*,char*);
@@ -321,6 +322,9 @@
return proc_check_root(inode);
}
+#ifdef CONFIG_MMU
+extern ssize_t proc_pid_read_maps(struct task_struct *, struct file *,
+ char *, size_t, loff_t *);
static ssize_t pid_maps_read(struct file * file, char * buf,
size_t count, loff_t *ppos)
{
@@ -335,6 +339,7 @@
static struct file_operations proc_maps_operations = {
.read = pid_maps_read,
};
+#endif /* CONFIG_MMU */
extern struct seq_operations mounts_op;
static int mounts_open(struct inode *inode, struct file *file)
@@ -1023,10 +1028,11 @@
inode->i_fop = &proc_info_file_operations;
ei->op.proc_read = proc_pid_statm;
break;
+#ifdef CONFIG_MMU
case PROC_PID_MAPS:
inode->i_fop = &proc_maps_operations;
break;
-
+#endif
case PROC_PID_MEM:
inode->i_op = &proc_mem_inode_operations;
inode->i_fop = &proc_mem_operations;
-
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This archive was generated by hypermail 2b29 : Mon Dec 23 2002 - 22:00:29 EST