kernel/fork: Update maple tree interface.

Start using the number of entries directly, and mas_destroy().

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>

diff --git a/kernel/fork.c b/kernel/fork.c
index 476acbf370a854de563f56aa08d85a2711aeee8e..5e4de4b860439540d4e8a01325d8dee1359636ad 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -506,7 +506,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
 
        prev = NULL;
 
-       retval = mas_entry_count(&mas, oldmm->map_count * 2);
+       retval = mas_entry_count(&mas, oldmm->map_count);
        if (retval)
                goto fail_nomem;
 
@@ -610,7 +610,7 @@ out:
        mmap_write_unlock(mm);
        flush_tlb_mm(oldmm);
        mmap_write_unlock(oldmm);
-       mas_empty_alloc(&mas);
+       mas_destroy(&mas);
        dup_userfaultfd_complete(&uf);
 fail_uprobe_end:
        uprobe_end_dup_mmap();