[PATCH] fs, proc: remove priv argument from is_stack

[Michal Hocko]

From: Michal Hocko <mho...@suse.com>

b18cb64ead40 ("fs/proc: Stop trying to report thread stacks") has
removed the priv parameter user in is_stack so the argument is
redundant. Drop it.

Signed-off-by: Michal Hocko <mho...@suse.com>
---
Hi,
I have sent this trivial cleanup earlier when we were discussing stack
gap issue and it seemed to fall between cracks. I have just rebased it
on top of the current mmotm tree. It is a trivial cleanup. I was also
considering to move it out of task_{no}mmu.c and do a generic helper out
of it but then I just thought it might be more confusing than helpful
so I kept it there with their only users.

 fs/proc/task_mmu.c   | 7 +++----
 fs/proc/task_nommu.c | 5 ++---
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index b836fd61ed87..7f331ce63fc8 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -266,8 +266,7 @@ static int do_maps_open(struct inode *inode, struct file 
*file,
  * Indicate if the VMA is a stack for the given task; for
  * /proc/PID/maps that is the stack of the main task.
  */
-static int is_stack(struct proc_maps_private *priv,
-                   struct vm_area_struct *vma)
+static int is_stack(struct vm_area_struct *vma)
 {
        /*
         * We make no effort to guess what a given thread considers to be
@@ -341,7 +340,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct 
*vma, int is_pid)
                        goto done;
                }
 
-               if (is_stack(priv, vma))
+               if (is_stack(vma))
                        name = "[stack]";
        }
 
@@ -1670,7 +1669,7 @@ static int show_numa_map(struct seq_file *m, void *v, int 
is_pid)
                seq_file_path(m, file, "\n\t= ");
        } else if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) {
                seq_puts(m, " heap");
-       } else if (is_stack(proc_priv, vma)) {
+       } else if (is_stack(vma)) {
                seq_puts(m, " stack");
        }
 
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 23266694db11..dea90b566a6e 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -125,8 +125,7 @@ unsigned long task_statm(struct mm_struct *mm,
        return size;
 }
 
-static int is_stack(struct proc_maps_private *priv,
-                   struct vm_area_struct *vma)
+static int is_stack(struct vm_area_struct *vma)
 {
        struct mm_struct *mm = vma->vm_mm;
 
@@ -178,7 +177,7 @@ static int nommu_vma_show(struct seq_file *m, struct 
vm_area_struct *vma,
        if (file) {
                seq_pad(m, ' ');
                seq_file_path(m, file, "");
-       } else if (mm && is_stack(priv, vma)) {
+       } else if (mm && is_stack(vma)) {
                seq_pad(m, ' ');
                seq_printf(m, "[stack]");
        }
-- 
2.13.2