There is no kind of file does not supply page reading function.
Change v1 -> v2:
- deleted the mapping variable
Signed-off-by: Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx>
---
fs/ext4/file.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 8695f70..aca7b24 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -200,10 +200,6 @@ static const struct vm_operations_struct ext4_file_vm_ops = {
static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct address_space *mapping = file->f_mapping;
-
- if (!mapping->a_ops->readpage)
- return -ENOEXEC;
file_accessed(file);
vma->vm_ops = &ext4_file_vm_ops;
return 0;
--
1.8.1.2
.
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