The patch titled
bsdacct: account dying tasks in all relevant namespaces
has been added to the -mm tree. Its filename is
bsdacct-account-dying-tasks-in-all-relevant-namespaces.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: bsdacct: account dying tasks in all relevant namespaces
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
This just makes the acct_proces walk the pid namespaces from current up to
the top and account a task in each with the accounting turned on.
ns->parent access if safe lockless, since current it still alive and holds
its namespace, which in turn holds its parent.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/acct.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff -puN kernel/acct.c~bsdacct-account-dying-tasks-in-all-relevant-namespaces kernel/acct.c
--- a/kernel/acct.c~bsdacct-account-dying-tasks-in-all-relevant-namespaces
+++ a/kernel/acct.c
@@ -631,15 +631,9 @@ void acct_collect(long exitcode, int gro
spin_unlock_irq(¤t->sighand->siglock);
}
-/**
- * acct_process - now just a wrapper around do_acct_process
- *
- * handles process accounting for an exiting task
- */
-void acct_process(void)
+static void acct_process_in_ns(struct pid_namespace *ns)
{
struct file *file = NULL;
- struct pid_namespace *ns = task_active_pid_ns(current);
struct bsd_acct_struct *acct;
acct = ns->bacct;
@@ -661,3 +655,16 @@ void acct_process(void)
do_acct_process(acct, ns, file);
fput(file);
}
+
+/**
+ * acct_process - now just a wrapper around do_acct_process
+ *
+ * handles process accounting for an exiting task
+ */
+void acct_process(void)
+{
+ struct pid_namespace *ns;
+
+ for (ns = task_active_pid_ns(current); ns != NULL; ns = ns->parent)
+ acct_process_in_ns(ns);
+}
_
Patches currently in -mm which might be from xemul@xxxxxxxxxx are
origin.patch
mark-res_counter_charge_locked-with-__must_check.patch
memcg-make-global-var-read_mostly.patch
memcg-avoid-unnecessary-initialization.patch
memcg-better-migration-handling.patch
bsdacct-rename-acct_blbls-to-bsd_acct_struct.patch
pidns-use-kzalloc-when-allocating-new-pid_namespace-struct.patch
pidns-add-the-struct-bsd_acct_struct-pointer-on-pid_namespace-struct.patch
bsdacct-truthify-a-comment-near-acct_process.patch
bsdacct-make-check-timer-accept-a-bsd_acct_struct-argument.patch
bsdacct-turn-the-acct_lock-from-on-the-struct-to-global.patch
bsdacct-make-internal-code-work-with-passed-bsd_acct_struct-not-global.patch
bsdacct-switch-from-global-bsd_acct_struct-instance-to-per-pidns-one.patch
bsdacct-turn-acct-off-for-all-pidns-s-on-umount-time.patch
bsdacct-account-dying-tasks-in-all-relevant-namespaces.patch
reiser4.patch
put_pid-make-sure-we-dont-free-the-live-pid.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
