diff options
| author | Shivank Garg <shivankg@amd.com> | 2025-08-27 17:52:45 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-10-20 06:30:26 -0700 |
| commit | f634f10809ec3d51d9529dfb0f99bc7cec1b5eff (patch) | |
| tree | a8fb6d8e481e75b2c42cb44b266ad1aac4f8c241 /mm/mempolicy.c | |
| parent | 16a542e22339cd5e73e56a956bbd335c7bd7c08c (diff) | |
mm/mempolicy: Export memory policy symbols
KVM guest_memfd wants to implement support for NUMA policies just like
shmem already does using the shared policy infrastructure. As
guest_memfd currently resides in KVM module code, we have to export the
relevant symbols.
In the future, guest_memfd might be moved to core-mm, at which point the
symbols no longer would have to be exported. When/if that happens is
still unclear.
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Shivank Garg <shivankg@amd.com>
Tested-by: Ashish Kalra <ashish.kalra@amd.com>
Link: https://lore.kernel.org/r/20250827175247.83322-6-shivankg@amd.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'mm/mempolicy.c')
| -rw-r--r-- | mm/mempolicy.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index eb83cff7db8c..3d797d47a040 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -354,6 +354,7 @@ struct mempolicy *get_task_policy(struct task_struct *p) return &default_policy; } +EXPORT_SYMBOL_FOR_MODULES(get_task_policy, "kvm"); static const struct mempolicy_operations { int (*create)(struct mempolicy *pol, const nodemask_t *nodes); @@ -487,6 +488,7 @@ void __mpol_put(struct mempolicy *pol) return; kmem_cache_free(policy_cache, pol); } +EXPORT_SYMBOL_FOR_MODULES(__mpol_put, "kvm"); static void mpol_rebind_default(struct mempolicy *pol, const nodemask_t *nodes) { @@ -2885,6 +2887,7 @@ struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp, read_unlock(&sp->lock); return pol; } +EXPORT_SYMBOL_FOR_MODULES(mpol_shared_policy_lookup, "kvm"); static void sp_free(struct sp_node *n) { @@ -3170,6 +3173,7 @@ put_mpol: mpol_put(mpol); /* drop our incoming ref on sb mpol */ } } +EXPORT_SYMBOL_FOR_MODULES(mpol_shared_policy_init, "kvm"); int mpol_set_shared_policy(struct shared_policy *sp, struct vm_area_struct *vma, struct mempolicy *pol) @@ -3188,6 +3192,7 @@ int mpol_set_shared_policy(struct shared_policy *sp, sp_free(new); return err; } +EXPORT_SYMBOL_FOR_MODULES(mpol_set_shared_policy, "kvm"); /* Free a backing policy store on inode delete. */ void mpol_free_shared_policy(struct shared_policy *sp) @@ -3206,6 +3211,7 @@ void mpol_free_shared_policy(struct shared_policy *sp) } write_unlock(&sp->lock); } +EXPORT_SYMBOL_FOR_MODULES(mpol_free_shared_policy, "kvm"); #ifdef CONFIG_NUMA_BALANCING static int __initdata numabalancing_override; |