9p: Reorganization of 9p file system code

This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
It moves the transport, packet marshalling and connection layers to net/9p
leaving only the VFS related files in fs/9p.  This work is being done in
preparation for in-kernel 9p servers as well as alternate 9p clients (other
than VFS).

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 14 insertions, 43 deletions

diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index 9ac4ffe9ac7d..6248f0e727a3 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -33,10 +33,10 @@
 #include <linux/pagemap.h>
 #include <linux/idr.h>
 #include <linux/sched.h>
+#include <net/9p/9p.h>
+#include <net/9p/client.h>
 
-#include "debug.h"
 #include "v9fs.h"
-#include "9p.h"
 #include "v9fs_vfs.h"
 #include "fid.h"
 
@@ -50,55 +50,26 @@
 
 static int v9fs_vfs_readpage(struct file *filp, struct page *page)
 {
-        char *buffer = NULL;
-        int retval = -EIO;
-        loff_t offset = page_offset(page);
-        int count = PAGE_CACHE_SIZE;
-        struct inode *inode = filp->f_path.dentry->d_inode;
-        struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
-        int rsize = v9ses->maxdata - V9FS_IOHDRSZ;
-        struct v9fs_fid *v9f = filp->private_data;
-        struct v9fs_fcall *fcall = NULL;
-        int fid = v9f->fid;
-        int total = 0;
-        int result = 0;
-
-        dprintk(DEBUG_VFS, "\n");
+        int retval;
+        loff_t offset;
+        char *buffer;
+        struct p9_fid *fid;
 
+        P9_DPRINTK(P9_DEBUG_VFS, "\n");
+        fid = filp->private_data;
         buffer = kmap(page);
-        do {
-                if (count < rsize)
-                        rsize = count;
-
-                result = v9fs_t_read(v9ses, fid, offset, rsize, &fcall);
-
-                if (result < 0) {
-                        printk(KERN_ERR "v9fs_t_read returned %d\n",
-                               result);
-
-                        kfree(fcall);
-                        goto UnmapAndUnlock;
-                } else
-                        offset += result;
-
-                memcpy(buffer, fcall->params.rread.data, result);
-
-                count -= result;
-                buffer += result;
-                total += result;
-
-                kfree(fcall);
+        offset = page_offset(page);
 
-                if (result < rsize)
-                        break;
-        } while (count);
+        retval = p9_client_readn(fid, buffer, offset, PAGE_CACHE_SIZE);
+        if (retval < 0)
+                goto done;
 
-        memset(buffer, 0, count);
+        memset(buffer + retval, 0, PAGE_CACHE_SIZE - retval);
         flush_dcache_page(page);
         SetPageUptodate(page);
         retval = 0;
 
-UnmapAndUnlock:
+done:
         kunmap(page);
         unlock_page(page);
         return retval;