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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 /fs
parent777eda2c5b84d6f3543f4aecbf4cd1f29b222a81 (diff)
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 'fs')
-rw-r--r--fs/kernfs/file.c22
1 files changed, 0 insertions, 22 deletions
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 697390ea47b8..ddc9f9612f16 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -448,27 +448,6 @@ static struct mempolicy *kernfs_vma_get_policy(struct vm_area_struct *vma,
return pol;
}
-static int kernfs_vma_migrate(struct vm_area_struct *vma,
- const nodemask_t *from, const nodemask_t *to,
- unsigned long flags)
-{
- struct file *file = vma->vm_file;
- struct kernfs_open_file *of = kernfs_of(file);
- int ret;
-
- if (!of->vm_ops)
- return 0;
-
- if (!kernfs_get_active(of->kn))
- return 0;
-
- ret = 0;
- if (of->vm_ops->migrate)
- ret = of->vm_ops->migrate(vma, from, to, flags);
-
- kernfs_put_active(of->kn);
- return ret;
-}
#endif
static const struct vm_operations_struct kernfs_vm_ops = {
@@ -479,7 +458,6 @@ static const struct vm_operations_struct kernfs_vm_ops = {
#ifdef CONFIG_NUMA
.set_policy = kernfs_vma_set_policy,
.get_policy = kernfs_vma_get_policy,
- .migrate = kernfs_vma_migrate,
#endif
};

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