Quite the smp_processor_id() wanrings. I don't see any SMP
concerns here . It just adds to a percpu list, so it shouldn't
matter if it switches after sampling fdtable_defer_list .
Signed-Off-By: Daniel Walker <[email protected]>
Index: linux-2.6.16/fs/file.c
===================================================================
--- linux-2.6.16.orig/fs/file.c
+++ linux-2.6.16/fs/file.c
@@ -138,6 +138,8 @@ static void free_fdtable_rcu(struct rcu_
kfree(fdt);
} else {
fddef = &get_cpu_var(fdtable_defer_list);
+ put_cpu_var(fdtable_defer_list);
+
spin_lock(&fddef->lock);
fdt->next = fddef->next;
fddef->next = fdt;
@@ -149,7 +151,6 @@ static void free_fdtable_rcu(struct rcu_
if (!schedule_work(&fddef->wq))
mod_timer(&fddef->timer, 5);
spin_unlock(&fddef->lock);
- put_cpu_var(fdtable_defer_list);
}
}
-
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