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authorAl Viro <viro@zeniv.linux.org.uk>2014-05-15 05:06:42 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-17 08:26:51 -0500
commit50062175ffc844b8ff9664024c6416a37ad63c77 (patch)
treeacde5ad578854a34a31a97eea496cfd5e6e155ef /mm/migrate.c
parent777eda2c5b84d6f3543f4aecbf4cd1f29b222a81 (diff)
downloadop-kernel-dev-50062175ffc844b8ff9664024c6416a37ad63c77.zip
op-kernel-dev-50062175ffc844b8ff9664024c6416a37ad63c77.tar.gz
vm_area_operations: kill ->migrate()
the only instance this method has ever grown was one in kernfs - one that call ->migrate() of another vm_ops if it exists. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c21
1 files changed, 0 insertions, 21 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index b1d0212..344cdf6 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1536,27 +1536,6 @@ out:
return err;
}
-/*
- * Call migration functions in the vma_ops that may prepare
- * memory in a vm for migration. migration functions may perform
- * the migration for vmas that do not have an underlying page struct.
- */
-int migrate_vmas(struct mm_struct *mm, const nodemask_t *to,
- const nodemask_t *from, unsigned long flags)
-{
- struct vm_area_struct *vma;
- int err = 0;
-
- for (vma = mm->mmap; vma && !err; vma = vma->vm_next) {
- if (vma->vm_ops && vma->vm_ops->migrate) {
- err = vma->vm_ops->migrate(vma, to, from, flags);
- if (err)
- break;
- }
- }
- return err;
-}
-
#ifdef CONFIG_NUMA_BALANCING
/*
* Returns true if this is a safe migration target node for misplaced NUMA
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