1 This patch makes /proc/self/exe executable even if proc
2 is not mounted. It is especially useful on NOMMU arches.
4 diff -urp ../linux-2.6.30.org/fs/exec.c linux-2.6.30/fs/exec.c
5 --- ../linux-2.6.30.org/fs/exec.c 2009-06-10 05:05:27.000000000 +0200
6 +++ linux-2.6.30/fs/exec.c 2009-06-25 00:20:13.000000000 +0200
7 @@ -652,9 +652,25 @@ struct file *open_exec(const char *name)
8 file = do_filp_open(AT_FDCWD, name,
9 O_LARGEFILE | O_RDONLY | FMODE_EXEC, 0,
14 + if ((PTR_ERR(file) == -ENOENT || PTR_ERR(file) == -EACCES)
15 + && strcmp(name, "/proc/self/exe") == 0
17 + struct file *sv = file;
18 + struct mm_struct *mm;
20 + mm = get_task_mm(current);
23 + file = get_mm_exe_file(mm);
33 if (!S_ISREG(file->f_path.dentry->d_inode->i_mode))