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pull bumping refcount into ->kill()

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there will be one more change of ->kill() calling conventions; this
isn't final.

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2015-01-10 00:07:35 -05:00
commit 32426f6653
2 changed files with 6 additions and 12 deletions
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6
kernel/acct.c
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@ -189,6 +189,12 @@ static void acct_pin_kill(struct fs_pin *pin)
{
struct bsd_acct_struct *acct;
acct = container_of(pin, struct bsd_acct_struct, pin);
if (!atomic_long_inc_not_zero(&pin->count)) {
rcu_read_unlock();
cpu_relax();
return;
}
rcu_read_unlock();
mutex_lock(&acct->lock);
if (!acct->ns) {
mutex_unlock(&acct->lock);