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authorAkinobu Mita <akinobu.mita@gmail.com>2008-07-04 20:59:51 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-04 21:40:07 +0400
commit6d1029b56329b1cc9b7233e5333c1a48ddbbfad8 (patch)
treeec6cf5296d0fe35238007a2eb2e6ee2a9c81fda8 /fs
parent337e2ab5d1efca56c6fdd57bffaea7e7899e7283 (diff)
downloadlinux-6d1029b56329b1cc9b7233e5333c1a48ddbbfad8.tar.xz
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@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/libfs.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index 892d41cb3382..baeb71ee1cde 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -512,6 +512,20 @@ void simple_release_fs(struct vfsmount **mount, int *count)
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 __user *to, size_t count, loff_t *ppos,
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)
{