[PATCH v4] linux/uio.h: cleanup for userspace

From: Mike Frysinger
Date: Mon Dec 29 2008 - 15:32:24 EST


Hide iov_shorten() behind __KERNEL__ since it's a prototype only. Use the
__inline__ form for iov_length() since it's usable by userspace.

Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
---
v4
- hide all funcs behind __KERNEL__
v3
- keep all __KERNEL__ stuff in one place
v2
- drop inline conversion stuff

include/linux/uio.h | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/uio.h b/include/linux/uio.h
index b7fe138..31d75cd 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -19,6 +19,13 @@ struct iovec
__kernel_size_t iov_len; /* Must be size_t (1003.1g) */
};

+/*
+ * UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
+ */
+
+#define UIO_FASTIOV 8
+#define UIO_MAXIOV 1024
+
#ifdef __KERNEL__

struct kvec {
@@ -26,15 +33,6 @@ struct kvec {
size_t iov_len;
};

-#endif
-
-/*
- * UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
- */
-
-#define UIO_FASTIOV 8
-#define UIO_MAXIOV 1024
-
/*
* Total number of bytes covered by an iovec.
*
@@ -55,3 +53,5 @@ static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs)
unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to);

#endif
+
+#endif
--
1.6.0.6

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