#include <linux/fs.h>
#include <linux/list.h>
#include <linux/highmem.h>
+#include <linux/compiler.h>
#include <asm/uaccess.h>
#include <linux/gfp.h>
static inline unsigned long get_page_cache_size(void)
{
- return atomic_read(&nr_pagecache);
+ int ret = atomic_read(&nr_pagecache);
+ if (unlikely(ret < 0))
+ ret = 0;
+ return ret;
}
static inline pgoff_t linear_page_index(struct vm_area_struct *vma,