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Message-ID: <20080618150412.GA9533@localhost.localdomain>
Date: Thu, 19 Jun 2008 00:04:14 +0900
From: Akinobu Mita <akinobu.mita@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Christoph Hellwig <hch@....de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] add kernel-doc for simple_read_from_buffer and
memory_read_from_buffer
Add kernel-doc comments describing simple_read_from_buffer and
memory_read_from_buffer.
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Christoph Hellwig <hch@....de>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
fs/libfs.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
Index: 2.6-git/fs/libfs.c
===================================================================
--- 2.6-git.orig/fs/libfs.c
+++ 2.6-git/fs/libfs.c
@@ -512,6 +512,20 @@ void simple_release_fs(struct vfsmount *
mntput(mnt);
}
+/**
+ * simple_read_from_buffer - copy data from the buffer to user space
+ * @to: the user space buffer to read to
+ * @count: the maximum number of bytes to read
+ * @ppos: the current position in the buffer
+ * @from: the buffer to read from
+ * @available: the size of the buffer
+ *
+ * The simple_read_from_buffer() function reads up to @count bytes from the
+ * buffer @from at offset @ppos into the user space address starting at @to.
+ *
+ * On success, the number of bytes read is returned and the offset @ppos is
+ * advanced by this number, or negative value is returned on error.
+ **/
ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos,
const void *from, size_t available)
{
@@ -528,6 +542,20 @@ ssize_t simple_read_from_buffer(void __u
return count;
}
+/**
+ * memory_read_from_buffer - copy data from the buffer
+ * @to: the kernel space buffer to read to
+ * @count: the maximum number of bytes to read
+ * @ppos: the current position in the buffer
+ * @from: the buffer to read from
+ * @available: the size of the buffer
+ *
+ * The memory_read_from_buffer() function reads up to @count bytes from the
+ * buffer @from at offset @ppos into the kernel space address starting at @to.
+ *
+ * On success, the number of bytes read is returned and the offset @ppos is
+ * advanced by this number, or negative value is returned on error.
+ **/
ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
const void *from, size_t available)
{
--
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