fs: fix kernel_read prototype

Use proper ssize_t and size_t types for the return value and count
argument, move the offset last and make it an in/out argument like
all other read/write helpers, and make the buf argument a void pointer
to get rid of lots of casts in the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index ddfa86648f95..f12815777beb 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -272,6 +272,7 @@ static int p9_fd_read(struct p9_client *client, void *v, int len)
 {
         int ret;
         struct p9_trans_fd *ts = NULL;
+        loff_t pos;
 
         if (client && client->status != Disconnected)
                 ts = client->trans;
@@ -282,7 +283,8 @@ static int p9_fd_read(struct p9_client *client, void *v, int len)
         if (!(ts->rd->f_flags & O_NONBLOCK))
                 p9_debug(P9_DEBUG_ERROR, "blocking read ...\n");
 
-        ret = kernel_read(ts->rd, ts->rd->f_pos, v, len);
+        pos = ts->rd->f_pos;
+        ret = kernel_read(ts->rd, v, len, &pos);
         if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
                 client->status = Disconnected;
         return ret;