[AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.

Make the in-kernel AFS filesystem use AF_RXRPC instead of the old RxRPC code.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 34 insertions, 73 deletions

diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 900c8bb1c3b8..18863315211f 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -19,9 +19,6 @@
 #include <linux/slab.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>
-#include "volume.h"
-#include "vnode.h"
-#include "super.h"
 #include "internal.h"
 
 struct afs_iget_data {
@@ -40,7 +37,7 @@ static int afs_inode_map_status(struct afs_vnode *vnode)
                vnode->status.type,
                vnode->status.nlink,
                vnode->status.size,
-               vnode->status.version,
+               vnode->status.data_version,
                vnode->status.mode);
 
         switch (vnode->status.type) {
@@ -78,7 +75,7 @@ static int afs_inode_map_status(struct afs_vnode *vnode)
         if (vnode->status.type == AFS_FTYPE_SYMLINK) {
                 afs_mntpt_check_symlink(vnode);
 
-                if (vnode->flags & AFS_VNODE_MOUNTPOINT) {
+                if (test_bit(AFS_VNODE_MOUNTPOINT, &vnode->flags)) {
                         inode->i_mode   = S_IFDIR | vnode->status.mode;
                         inode->i_op     = &afs_mntpt_inode_operations;
                         inode->i_fop    = &afs_mntpt_file_operations;
@@ -89,25 +86,6 @@ static int afs_inode_map_status(struct afs_vnode *vnode)
 }
 
 /*
- * attempt to fetch the status of an inode, coelescing multiple simultaneous
- * fetches
- */
-static int afs_inode_fetch_status(struct inode *inode)
-{
-        struct afs_vnode *vnode;
-        int ret;
-
-        vnode = AFS_FS_I(inode);
-
-        ret = afs_vnode_fetch_status(vnode);
-
-        if (ret == 0)
-                ret = afs_inode_map_status(vnode);
-
-        return ret;
-}
-
-/*
  * iget5() comparator
  */
 static int afs_iget5_test(struct inode *inode, void *opaque)
@@ -137,8 +115,7 @@ static int afs_iget5_set(struct inode *inode, void *opaque)
 /*
  * inode retrieval
  */
-inline int afs_iget(struct super_block *sb, struct afs_fid *fid,
-                    struct inode **_inode)
+inline struct inode *afs_iget(struct super_block *sb, struct afs_fid *fid)
 {
         struct afs_iget_data data = { .fid = *fid };
         struct afs_super_info *as;
@@ -155,20 +132,18 @@ inline int afs_iget(struct super_block *sb, struct afs_fid *fid,
                              &data);
         if (!inode) {
                 _leave(" = -ENOMEM");
-                return -ENOMEM;
+                return ERR_PTR(-ENOMEM);
         }
 
+        _debug("GOT INODE %p { vl=%x vn=%x, u=%x }",
+               inode, fid->vid, fid->vnode, fid->unique);
+
         vnode = AFS_FS_I(inode);
 
         /* deal with an existing inode */
         if (!(inode->i_state & I_NEW)) {
-                ret = afs_vnode_fetch_status(vnode);
-                if (ret == 0)
-                        *_inode = inode;
-                else
-                        iput(inode);
-                _leave(" = %d", ret);
-                return ret;
+                _leave(" = %p", inode);
+                return inode;
         }
 
 #ifdef AFS_CACHING_SUPPORT
@@ -181,21 +156,19 @@ inline int afs_iget(struct super_block *sb, struct afs_fid *fid,
 #endif
 
         /* okay... it's a new inode */
-        inode->i_flags |= S_NOATIME;
-        vnode->flags |= AFS_VNODE_CHANGED;
-        ret = afs_inode_fetch_status(inode);
-        if (ret<0)
+        set_bit(AFS_VNODE_CB_BROKEN, &vnode->flags);
+        ret = afs_vnode_fetch_status(vnode);
+        if (ret < 0)
+                goto bad_inode;
+        ret = afs_inode_map_status(vnode);
+        if (ret < 0)
                 goto bad_inode;
 
         /* success */
+        inode->i_flags |= S_NOATIME;
         unlock_new_inode(inode);
-
-        *_inode = inode;
-        _leave(" = 0 [CB { v=%u x=%lu t=%u }]",
-               vnode->cb_version,
-               vnode->cb_timeout.timo_jif,
-               vnode->cb_type);
-        return 0;
+        _leave(" = %p [CB { v=%u t=%u }]", inode, vnode->cb_version, vnode->cb_type);
+        return inode;
 
         /* failure */
 bad_inode:
@@ -204,7 +177,7 @@ bad_inode:
         iput(inode);
 
         _leave(" = %d [bad]", ret);
-        return ret;
+        return ERR_PTR(ret);
 }
 
 /*
@@ -213,36 +186,13 @@ bad_inode:
 int afs_inode_getattr(struct vfsmount *mnt, struct dentry *dentry,
                       struct kstat *stat)
 {
-        struct afs_vnode *vnode;
         struct inode *inode;
-        int ret;
 
         inode = dentry->d_inode;
 
         _enter("{ ino=%lu v=%lu }", inode->i_ino, inode->i_version);
 
-        vnode = AFS_FS_I(inode);
-
-        ret = afs_inode_fetch_status(inode);
-        if (ret == -ENOENT) {
-                _leave(" = %d [%d %p]",
-                       ret, atomic_read(&dentry->d_count), dentry->d_inode);
-                return ret;
-        } else if (ret < 0) {
-                make_bad_inode(inode);
-                _leave(" = %d", ret);
-                return ret;
-        }
-
-        /* transfer attributes from the inode structure to the stat
-         * structure */
         generic_fillattr(inode, stat);
-
-        _leave(" = 0 CB { v=%u x=%u t=%u }",
-               vnode->cb_version,
-               vnode->cb_expiry,
-               vnode->cb_type);
-
         return 0;
 }
 
@@ -260,12 +210,23 @@ void afs_clear_inode(struct inode *inode)
                vnode->fid.vnode,
                vnode->cb_version,
                vnode->cb_expiry,
-               vnode->cb_type
-               );
+               vnode->cb_type);
 
-        BUG_ON(inode->i_ino != vnode->fid.vnode);
+        _debug("CLEAR INODE %p", inode);
+
+        ASSERTCMP(inode->i_ino, ==, vnode->fid.vnode);
+
+        afs_give_up_callback(vnode);
+
+        if (vnode->server) {
+                spin_lock(&vnode->server->fs_lock);
+                rb_erase(&vnode->server_rb, &vnode->server->fs_vnodes);
+                spin_unlock(&vnode->server->fs_lock);
+                afs_put_server(vnode->server);
+                vnode->server = NULL;
+        }
 
-        afs_vnode_give_up_callback(vnode);
+        ASSERT(!vnode->cb_promised);
 
 #ifdef AFS_CACHING_SUPPORT
         cachefs_relinquish_cookie(vnode->cache, 0);