kernfs: make kernfs_open_file->mmapped a bitfield
More kernfs_open_file->mutex synchronized flags are planned to be
added. Convert ->mmapped to a bitfield in preparation.
While at it, make kernfs_fop_mmap() use "true" instead of "1" on
->mmapped.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 7056238..afd4e5a 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -185,7 +185,7 @@
char *prealloc_buf;
size_t atomic_write_len;
- bool mmapped;
+ bool mmapped:1;
const struct vm_operations_struct *vm_ops;
};