#include <linux/module.h>
#include <linux/uio.h>
#include <linux/rmap.h>
+#include <linux/sched.h>
#include <asm/tlbflush.h>
#include "filemap.h"
}
EXPORT_SYMBOL_GPL(xip_file_read);
-ssize_t
-xip_file_sendfile(struct file *in_file, loff_t *ppos,
- size_t count, read_actor_t actor, void *target)
-{
- read_descriptor_t desc;
-
- if (!count)
- return 0;
-
- desc.written = 0;
- desc.count = count;
- desc.arg.data = target;
- desc.error = 0;
-
- do_xip_mapping_read(in_file->f_mapping, &in_file->f_ra, in_file,
- ppos, &desc, actor);
- if (desc.written)
- return desc.written;
- return desc.error;
-}
-EXPORT_SYMBOL_GPL(xip_file_sendfile);
-
/*
* __xip_unmap is invoked from xip_unmap and
* xip_write
unsigned blocksize;
unsigned length;
struct page *page;
- void *kaddr;
BUG_ON(!mapping->a_ops->get_xip_page);
else
return PTR_ERR(page);
}
- kaddr = kmap_atomic(page, KM_USER0);
- memset(kaddr + offset, 0, length);
- kunmap_atomic(kaddr, KM_USER0);
-
- flush_dcache_page(page);
+ zero_user_page(page, offset, length, KM_USER0);
return 0;
}
EXPORT_SYMBOL_GPL(xip_truncate_page);