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Hi,

This patch adds all thread accounting stats for the global tgid stats.
As a shameless plug, this fixes iotop -P (http://guichaz.free.fr/misc/iotop.py).

Signed-off-by: Guillaume Chazarain <[EMAIL PROTECTED]>
---

diff -r 22708012ca6e kernel/taskstats.c
--- a/kernel/taskstats.c        Tue Jul 31 21:12:07 2007 -0700
+++ b/kernel/taskstats.c        Wed Aug 01 17:43:54 2007 +0200
@@ -233,6 +233,7 @@ static int fill_tgid(pid_t tgid, struct
                memset(stats, 0, sizeof(*stats));

        tsk = first;
+       bacct_add_tsk(stats, first);
        do {
                if (tsk->exit_state)
                        continue;
@@ -246,6 +247,7 @@ static int fill_tgid(pid_t tgid, struct

                stats->nvcsw += tsk->nvcsw;
                stats->nivcsw += tsk->nivcsw;
+               xacct_add_tsk(stats, tsk);
        } while_each_thread(first, tsk);

        unlock_task_sighand(first, &flags);
diff -r 22708012ca6e kernel/tsacct.c
--- a/kernel/tsacct.c   Tue Jul 31 21:12:07 2007 -0700
+++ b/kernel/tsacct.c   Wed Aug 01 17:41:40 2007 +0200
@@ -81,8 +81,8 @@ void xacct_add_tsk(struct taskstats *sta
        struct mm_struct *mm;

        /* convert pages-jiffies to Mbyte-usec */
-       stats->coremem = jiffies_to_usecs(p->acct_rss_mem1) * PAGE_SIZE / MB;
-       stats->virtmem = jiffies_to_usecs(p->acct_vm_mem1) * PAGE_SIZE / MB;
+       stats->coremem += jiffies_to_usecs(p->acct_rss_mem1) * PAGE_SIZE / MB;
+       stats->virtmem += jiffies_to_usecs(p->acct_vm_mem1) * PAGE_SIZE / MB;
        mm = get_task_mm(p);
        if (mm) {
                /* adjust to KB unit */
@@ -90,18 +90,14 @@ void xacct_add_tsk(struct taskstats *sta
                stats->hiwater_vm    = mm->hiwater_vm * PAGE_SIZE / KB;
                mmput(mm);
        }
-       stats->read_char        = p->rchar;
-       stats->write_char       = p->wchar;
-       stats->read_syscalls    = p->syscr;
-       stats->write_syscalls   = p->syscw;
+       stats->read_char        += p->rchar;
+       stats->write_char       += p->wchar;
+       stats->read_syscalls    += p->syscr;
+       stats->write_syscalls   += p->syscw;
 #ifdef CONFIG_TASK_IO_ACCOUNTING
-       stats->read_bytes       = p->ioac.read_bytes;
-       stats->write_bytes      = p->ioac.write_bytes;
-       stats->cancelled_write_bytes = p->ioac.cancelled_write_bytes;
-#else
-       stats->read_bytes       = 0;
-       stats->write_bytes      = 0;
-       stats->cancelled_write_bytes = 0;
+       stats->read_bytes       += p->ioac.read_bytes;
+       stats->write_bytes      += p->ioac.write_bytes;
+       stats->cancelled_write_bytes += p->ioac.cancelled_write_bytes;
 #endif
 }
 #undef KB
-
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