Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...

[pandora-kernel.git] / fs / exec.c

diff --git a/fs/exec.c b/fs/exec.c
index c016896..ea5f748 100644 (file)
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -42,7 +42,6 @@
 #include <linux/pid_namespace.h>
 #include <linux/module.h>
 #include <linux/namei.h>
-#include <linux/proc_fs.h>
 #include <linux/mount.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
@@ -200,7 +199,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 
 #ifdef CONFIG_STACK_GROWSUP
        if (write) {
-               ret = expand_stack_downwards(bprm->vma, pos);
+               ret = expand_downwards(bprm->vma, pos);
                if (ret < 0)
                        return NULL;
        }
@@ -600,7 +599,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
        unsigned long length = old_end - old_start;
        unsigned long new_start = old_start - shift;
        unsigned long new_end = old_end - shift;
-       struct mmu_gather *tlb;
+       struct mmu_gather tlb;
 
        BUG_ON(new_start > new_end);
 
@@ -626,12 +625,12 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
                return -ENOMEM;
 
        lru_add_drain();
-       tlb = tlb_gather_mmu(mm, 0);
+       tlb_gather_mmu(&tlb, mm, 0);
        if (new_end > old_start) {
                /*
                 * when the old and new regions overlap clear from new_end.
                 */
-               free_pgd_range(tlb, new_end, old_end, new_end,
+               free_pgd_range(&tlb, new_end, old_end, new_end,
                        vma->vm_next ? vma->vm_next->vm_start : 0);
        } else {
                /*
@@ -640,10 +639,10 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
                 * have constraints on va-space that make this illegal (IA64) -
                 * for the others its just a little faster.
                 */
-               free_pgd_range(tlb, old_start, old_end, new_end,
+               free_pgd_range(&tlb, old_start, old_end, new_end,
                        vma->vm_next ? vma->vm_next->vm_start : 0);
        }
-       tlb_finish_mmu(tlb, new_end, old_end);
+       tlb_finish_mmu(&tlb, new_end, old_end);
 
        /*
         * Shrink the vma to just the new range.  Always succeeds.
@@ -1051,6 +1050,7 @@ char *get_task_comm(char *buf, struct task_struct *tsk)
        task_unlock(tsk);
        return buf;
 }
+EXPORT_SYMBOL_GPL(get_task_comm);
 
 void set_task_comm(struct task_struct *tsk, char *buf)
 {
@@ -1623,6 +1623,41 @@ expand_fail:
        return ret;
 }
 
+static int cn_print_exe_file(struct core_name *cn)
+{
+       struct file *exe_file;
+       char *pathbuf, *path, *p;
+       int ret;
+
+       exe_file = get_mm_exe_file(current->mm);
+       if (!exe_file)
+               return cn_printf(cn, "(unknown)");
+
+       pathbuf = kmalloc(PATH_MAX, GFP_TEMPORARY);
+       if (!pathbuf) {
+               ret = -ENOMEM;
+               goto put_exe_file;
+       }
+
+       path = d_path(&exe_file->f_path, pathbuf, PATH_MAX);
+       if (IS_ERR(path)) {
+               ret = PTR_ERR(path);
+               goto free_buf;
+       }
+
+       for (p = path; *p; p++)
+               if (*p == '/')
+                       *p = '!';
+
+       ret = cn_printf(cn, "%s", path);
+
+free_buf:
+       kfree(pathbuf);
+put_exe_file:
+       fput(exe_file);
+       return ret;
+}
+
 /* format_corename will inspect the pattern parameter, and output a
  * name into corename, which must have space for at least
  * CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.
@@ -1694,6 +1729,9 @@ static int format_corename(struct core_name *cn, long signr)
                        case 'e':
                                err = cn_printf(cn, "%s", current->comm);
                                break;
+                       case 'E':
+                               err = cn_print_exe_file(cn);
+                               break;
                        /* core limit size */
                        case 'c':
                                err = cn_printf(cn, "%lu",