__mpol_dup

Name:Slow path of a mempolicy duplicate

Proto:struct mempolicy *__mpol_dup(struct mempolicy *old)

Type:struct mempolicy

Parameter:

Type	Parameter	Name
struct mempolicy *	old

2243

new = kmem_cache_alloc(policy_cache, GFP_KERNEL)

2245

If Not new Then Return ERR_PTR( - ENOMEM)

2249

If old == mempolicy Then

2250

Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring* subscriptions and synchronises with wait4(). Also used in procfs. Also* pins the final release of task.io_context. Also protects ->cpuset and* ->cgroup.subsys[]. And ->vfork_done.

2251

new = old

2252

task_unlock(current process)

2253

Else new = old

2256

If current_cpuset_is_being_rebound() Then

2257

mems = puset_mems_allowed - return mems_allowed mask from a tasks cpuset.*@tsk: pointer to task_struct from which to obtain cpuset->mems_allowed.* Description: Returns the nodemask_t mems_allowed of the cpuset* attached to the specified @tsk

2258

mpol_rebind_policy - Migrate a policy to a different set of nodes* Per-vma policies are protected by mmap_sem. Allocations using per-task* policies are protected by task->mems_allowed_seq to prevent a premature

2260

atomic_set( & refcnt, 1)

2261

Return new

**Caller**
Name	Describe
mpol_dup

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