Provides a CONFIG_SYSCALL_SPLICE compatible way of defining the .splice_read
and .splice_write file_operations so that they can later be compiled out when
the kernel is configured without the splice-family syscalls
Signed-off-by: Pieter Smith <pieter@xxxxxxxxxx>
---
include/linux/fs.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9418772..a88de9f 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1512,6 +1512,32 @@ struct file_operations {
int (*show_fdinfo)(struct seq_file *m, struct file *f);
};
+#ifdef CONFIG_SYSCALL_SPLICE
+
+/*
+ * Define and init the splice_read member of a file_operations struct
+ */
+#define SPLICE_READ_INIT(read) .splice_read = read,
+
+/*
+ * Define and init the splice_read member of a file_operations struct
+ */
+#define SPLICE_WRITE_INIT(write) .splice_write = write,
+
+#else /* #ifdef CONFIG_SYSCALL_SPLICE */
+
+/*
+ * Define and init the splice_read member of a file_operations struct
+ */
+#define SPLICE_READ_INIT(read)
+
+/*
+ * Define and init the splice_read member of a file_operations struct
+ */
+#define SPLICE_WRITE_INIT(write)
+
+#endif /* #ifdef CONFIG_SYSCALL_SPLICE */
+
struct inode_operations {
struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
void * (*follow_link) (struct dentry *, struct nameidata *);
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
