The patch titled
bsdacct: turn acct off for all pidns-s on umount time
has been removed from the -mm tree. Its filename was
bsdacct-turn-acct-off-for-all-pidns-s-on-umount-time.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: turn acct off for all pidns-s on umount time
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
All the bsd_acct_strcts with opened accounting are linked into a global
list. So, the acct_auto_close(_mnt) walks one and drops the accounting
for each.
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 | 28 ++++++++++++++++------------
1 file changed, 16 insertions(+), 12 deletions(-)
diff -puN kernel/acct.c~bsdacct-turn-acct-off-for-all-pidns-s-on-umount-time kernel/acct.c
--- a/kernel/acct.c~bsdacct-turn-acct-off-for-all-pidns-s-on-umount-time
+++ a/kernel/acct.c
@@ -89,9 +89,11 @@ struct bsd_acct_struct {
struct file *file;
struct pid_namespace *ns;
struct timer_list timer;
+ struct list_head list;
};
static DEFINE_SPINLOCK(acct_lock);
+static LIST_HEAD(acct_list);
/*
* Called whenever the timer says to check the free space.
@@ -188,12 +190,14 @@ static void acct_file_reopen(struct bsd_
acct->needcheck = 0;
acct->file = NULL;
acct->ns = NULL;
+ list_del(&acct->list);
}
if (file) {
acct->file = file;
acct->ns = ns;
acct->needcheck = 0;
acct->active = 1;
+ list_add(&acct->list, &acct_list);
/* It's been deleted if it was used before so this is safe */
setup_timer(&acct->timer, acct_timeout, (unsigned long)acct);
acct->timer.expires = jiffies + ACCT_TIMEOUT*HZ;
@@ -314,13 +318,13 @@ void acct_auto_close_mnt(struct vfsmount
{
struct bsd_acct_struct *acct;
- acct = init_pid_ns.bacct;
- if (acct == NULL)
- return;
-
spin_lock(&acct_lock);
- if (acct->file && acct->file->f_path.mnt == m)
- acct_file_reopen(acct, NULL, NULL);
+restart:
+ list_for_each_entry(acct, &acct_list, list)
+ if (acct->file && acct->file->f_path.mnt == m) {
+ acct_file_reopen(acct, NULL, NULL);
+ goto restart;
+ }
spin_unlock(&acct_lock);
}
@@ -335,13 +339,13 @@ void acct_auto_close(struct super_block
{
struct bsd_acct_struct *acct;
- acct = init_pid_ns.bacct;
- if (acct == NULL)
- return;
-
spin_lock(&acct_lock);
- if (acct->file && acct->file->f_path.mnt->mnt_sb == sb)
- acct_file_reopen(acct, NULL, NULL);
+restart:
+ list_for_each_entry(acct, &acct_list, list)
+ if (acct->file && acct->file->f_path.mnt->mnt_sb == sb) {
+ acct_file_reopen(acct, NULL, NULL);
+ goto restart;
+ }
spin_unlock(&acct_lock);
}
_
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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