修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/include/linux/mempolicy.h
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@@ -6,7 +6,7 @@
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 #ifndef _LINUX_MEMPOLICY_H
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 #define _LINUX_MEMPOLICY_H 1
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-
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+#include <linux/sched.h>
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 #include <linux/mmzone.h>
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 #include <linux/dax.h>
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 #include <linux/slab.h>
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@@ -28,10 +28,10 @@
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  * the process policy is used. Interrupts ignore the memory policy
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  * of the current process.
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  *
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- * Locking policy for interlave:
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+ * Locking policy for interleave:
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  * In process context there is no locking because only the process accesses
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  * its own state. All vma manipulation is somewhat protected by a down_read on
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- * mmap_sem.
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+ * mmap_lock.
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  *
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  * Freeing policy:
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  * Mempolicy objects are reference counted.  A mempolicy will be freed when
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@@ -152,6 +152,15 @@
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 extern bool init_nodemask_of_mempolicy(nodemask_t *mask);
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 extern bool mempolicy_nodemask_intersects(struct task_struct *tsk,
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 				const nodemask_t *mask);
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+extern nodemask_t *policy_nodemask(gfp_t gfp, struct mempolicy *policy);
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+
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+static inline nodemask_t *policy_nodemask_current(gfp_t gfp)
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+{
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+	struct mempolicy *mpol = get_task_policy(current);
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+
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+	return policy_nodemask(gfp, mpol);
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+}
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+
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 extern unsigned int mempolicy_slab_node(void);
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 extern enum zone_type policy_zone;
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@@ -173,34 +182,7 @@
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 extern void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
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 /* Check if a vma is migratable */
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-static inline bool vma_migratable(struct vm_area_struct *vma)
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-{
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-	if (vma->vm_flags & (VM_IO | VM_PFNMAP))
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-		return false;
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-
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-	/*
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-	 * DAX device mappings require predictable access latency, so avoid
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-	 * incurring periodic faults.
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-	 */
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-	if (vma_is_dax(vma))
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-		return false;
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-
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-#ifndef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
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-	if (vma->vm_flags & VM_HUGETLB)
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-		return false;
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-#endif
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-
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-	/*
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-	 * Migration allocates pages in the highest zone. If we cannot
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-	 * do so then migration (at least from node to node) is not
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-	 * possible.
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-	 */
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-	if (vma->vm_file &&
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-		gfp_zone(mapping_gfp_mask(vma->vm_file->f_mapping))
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-								< policy_zone)
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-			return false;
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-	return true;
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-}
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+extern bool vma_migratable(struct vm_area_struct *vma);
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 extern int mpol_misplaced(struct page *, struct vm_area_struct *, unsigned long);
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 extern void mpol_put_task_policy(struct task_struct *);
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@@ -308,5 +290,10 @@
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 static inline void mpol_put_task_policy(struct task_struct *task)
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 {
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 }
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+
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+static inline nodemask_t *policy_nodemask_current(gfp_t gfp)
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+{
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+	return NULL;
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+}
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 #endif /* CONFIG_NUMA */
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 #endif