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Subject[Fwd: Re:Re: [PATCH 2.6.0-test11] Resident memory info in fs/proc/task_mmu.c]
From
Hi,

Thanks to Christian who helped us pointing some text mistyping.
We attached the file just in case.

>
> Why are you breaking the Coding style? Can you keep the standard
indentation
> please? This will make your patch much smaller and easier to see what
you actually changed.
>
> cheers
>
> Christian
>

We would appreciate any comments.

BR,

Edjard

--- linux-2.6.0-test11/fs/proc/task_mmu.c 2003-11-26 18:43:07.000000000 -0200
+++ linux/fs/proc/task_mmu.c 2003-12-02 13:58:10.000000000 -0200
@@ -3,42 +3,83 @@
#include <linux/seq_file.h>
#include <asm/uaccess.h>

+/**
+* Allan Bezerra (ajsb@dcc.fua.br) &
+* Bruna Moreira (brunampm@bol.com.br) &
+* Edjard Mota (edjard@ufam.edu.br) &
+* Mauricio Lin (mauriciolin@bol.com.br) &
+* Include a process PID physical memory size info in the /proc/PID/status
+*/
+
+void resident_mem_size(struct mm_struct *mm, unsigned long start_address,
unsigned long end_address, unsigned long *size)
+{
+ pgd_t *my_pgd;
+ pmd_t *my_pmd;
+ pte_t *my_pte;
+ unsigned long page;
+
+ for (page = start_address; page < end_address; page += PAGE_SIZE) {
+ my_pgd = pgd_offset(mm, page);
+ if (pgd_none(*my_pgd) || pgd_bad(*my_pgd)) continue;
+ my_pmd = pmd_offset(my_pgd, page);
+ if (pmd_none(*my_pmd) || pmd_bad(*my_pmd)) continue;
+ my_pte = pte_offset_map(my_pmd, page);
+ if (pte_present(*my_pte))
+ *size += PAGE_SIZE;
+ }
+}
+
char *task_mem(struct mm_struct *mm, char *buffer)
{
unsigned long data = 0, stack = 0, exec = 0, lib = 0;
struct vm_area_struct *vma;
-
+ unsigned long phys_data = 0, phys_stack = 0, phys_exec = 0, phys_lib =
0, phys_brk = 0;
down_read(&mm->mmap_sem);
for (vma = mm->mmap; vma; vma = vma->vm_next) {
unsigned long len = (vma->vm_end - vma->vm_start) >> 10;
if (!vma->vm_file) {
data += len;
- if (vma->vm_flags & VM_GROWSDOWN)
+ resident_mem_size(mm, vma->vm_start, vma->vm_end, &phys_data);
+ if (vma->vm_flags & VM_GROWSDOWN){
stack += len;
+ resident_mem_size(mm, vma->vm_start, vma->vm_end, &phys_stack);
+ }
continue;
}
if (vma->vm_flags & VM_WRITE)
continue;
if (vma->vm_flags & VM_EXEC) {
exec += len;
+ resident_mem_size(mm, vma->vm_start, vma->vm_end, &phys_exec);
if (vma->vm_flags & VM_EXECUTABLE)
continue;
lib += len;
+ resident_mem_size(mm, vma->vm_start, vma->vm_end, &phys_lib);
}
}
+ resident_mem_size(mm, mm->start_brk, mm->brk, &phys_brk);
buffer += sprintf(buffer,
"VmSize:\t%8lu kB\n"
"VmLck:\t%8lu kB\n"
"VmRSS:\t%8lu kB\n"
"VmData:\t%8lu kB\n"
+ "RssData:\t%8lu kB\n"
"VmStk:\t%8lu kB\n"
+ "RssStk:\t%8lu kB\n"
"VmExe:\t%8lu kB\n"
- "VmLib:\t%8lu kB\n",
+ "RssExe:\t%8lu kB\n"
+ "VmLib:\t%8lu kB\n"
+ "RssLib:\t%8lu kB\n"
+ "VmHeap:\t%8lu KB\n"
+ "RssHeap:\t%8lu KB\n",
mm->total_vm << (PAGE_SHIFT-10),
mm->locked_vm << (PAGE_SHIFT-10),
mm->rss << (PAGE_SHIFT-10),
- data - stack, stack,
- exec - lib, lib);
+ data - stack, (phys_data - phys_stack) >> 10,
+ stack, phys_stack >> 10,
+ exec - lib, (phys_exec - phys_lib) >> 10,
+ lib, phys_lib >> 10,
+ (mm->brk - mm->start_brk) >> 10, phys_brk >> 10);
up_read(&mm->mmap_sem);
return buffer;
}[unhandled content-type:application/octet-stream]
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