[PATCH] per process I/O statistics for userspace

[Levent Serinol <lserinol@gmail.com>]

with following patch, userspace processes/utilities will be able to
access per process I/O statistics. for example, top like utilites can
use this information.


--- linux-2.6.13/fs/proc/array.c.org    2005-08-29 02:41:01.000000000 +0300
+++ linux-2.6.13/fs/proc/array.c        2005-09-12 10:22:55.000000000 +0300
@@ -408,7 +408,7 @@ static int do_task_stat(struct task_stru

        res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
 %lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \
-%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
+%lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu %llu %llu\n",
                task->pid,
                tcomm,
                state,
@@ -453,7 +453,9 @@ static int do_task_stat(struct task_stru
                task->exit_signal,
                task_cpu(task),
                task->rt_priority,
-               task->policy);
+               task->policy,
+               task->rchar,
+               task->wchar);
        if(mm)
                mmput(mm);
        return res;
--
Signed-off-by: Levent Serinol <lserinol@gmail.com>
-
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