The patch titled
bsdacct: fix and add comments around acct_process()
has been removed from the -mm tree. Its filename was
bsdacct-stir-up-comments-around-acct_process.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: bsdacct: fix and add comments around acct_process()
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
Fix the one describing what this function is and add one more - about
locking absence around pid namespaces loop.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Cc: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/acct.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff -puN kernel/acct.c~bsdacct-stir-up-comments-around-acct_process kernel/acct.c
--- a/kernel/acct.c~bsdacct-stir-up-comments-around-acct_process
+++ a/kernel/acct.c
@@ -657,7 +657,8 @@ static void acct_process_in_ns(struct pi
}
/**
- * acct_process - now just a wrapper around do_acct_process
+ * acct_process - now just a wrapper around acct_process_in_ns,
+ * which in turn is a wrapper around do_acct_process.
*
* handles process accounting for an exiting task
*/
@@ -665,6 +666,11 @@ void acct_process(void)
{
struct pid_namespace *ns;
+ /*
+ * This loop is safe lockless, since current is still
+ * alive and holds its namespace, which in turn holds
+ * its parent.
+ */
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
memrlimit-add-memrlimit-controller-documentation.patch
memrlimit-setup-the-memrlimit-controller.patch
memrlimit-cgroup-mm-owner-callback-changes-to-add-task-info.patch
memrlimit-add-memrlimit-controller-accounting-and-control.patch
memrlimit-improve-error-handling.patch
memrlimit-improve-error-handling-update.patch
memrlimit-handle-attach_task-failure-add-can_attach-callback.patch
reiser4.patch
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