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authorChristoph Hellwig <hch@lst.de>2017-09-01 17:39:11 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2017-09-04 19:05:15 -0400
commitac452acae1caa1a451142a30b4e1ea09cfac4410 (patch)
tree93f24510cff66d776a610838a2285ffe1c6ac9ff
parent317d5a5f0f8fcc084d02c776c602c64a5b94e47b (diff)
fs: move kernel_write to fs/read_write.c
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/read_write.c17
-rw-r--r--fs/splice.c16
2 files changed, 16 insertions, 17 deletions
diff --git a/fs/read_write.c b/fs/read_write.c
index 0cc7033aa413..417dbe199505 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -496,9 +496,24 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
inc_syscw(current);
return ret;
}
-
EXPORT_SYMBOL(__kernel_write);
+ssize_t kernel_write(struct file *file, const char *buf, size_t count,
+ loff_t pos)
+{
+ mm_segment_t old_fs;
+ ssize_t res;
+
+ old_fs = get_fs();
+ set_fs(get_ds());
+ /* The cast to a user pointer is valid due to the set_fs() */
+ res = vfs_write(file, (__force const char __user *)buf, count, &pos);
+ set_fs(old_fs);
+
+ return res;
+}
+EXPORT_SYMBOL(kernel_write);
+
ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
{
ssize_t ret;
diff --git a/fs/splice.c b/fs/splice.c
index ae41201d0325..f3084cce0ea6 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -364,22 +364,6 @@ static ssize_t kernel_readv(struct file *file, const struct kvec *vec,
return res;
}
-ssize_t kernel_write(struct file *file, const char *buf, size_t count,
- loff_t pos)
-{
- mm_segment_t old_fs;
- ssize_t res;
-
- old_fs = get_fs();
- set_fs(get_ds());
- /* The cast to a user pointer is valid due to the set_fs() */
- res = vfs_write(file, (__force const char __user *)buf, count, &pos);
- set_fs(old_fs);
-
- return res;
-}
-EXPORT_SYMBOL(kernel_write);
-
static ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags)