Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 309 deletions

diff --git a/ANDROID_3.4.5/fs/9p/fid.c b/ANDROID_3.4.5/fs/9p/fid.c
deleted file mode 100644
index da8eefbe..00000000
--- a/ANDROID_3.4.5/fs/9p/fid.c
+++ /dev/null
@@ -1,309 +0,0 @@
-/*
- * V9FS FID Management
- *
- *  Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net>
- *  Copyright (C) 2005, 2006 by Eric Van Hensbergen <ericvh@gmail.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to:
- *  Free Software Foundation
- *  51 Franklin Street, Fifth Floor
- *  Boston, MA  02111-1301  USA
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/idr.h>
-#include <net/9p/9p.h>
-#include <net/9p/client.h>
-
-#include "v9fs.h"
-#include "v9fs_vfs.h"
-#include "fid.h"
-
-/**
- * v9fs_fid_add - add a fid to a dentry
- * @dentry: dentry that the fid is being added to
- * @fid: fid to add
- *
- */
-
-int v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid)
-{
-	struct v9fs_dentry *dent;
-
-	p9_debug(P9_DEBUG_VFS, "fid %d dentry %s\n",
-		 fid->fid, dentry->d_name.name);
-
-	dent = dentry->d_fsdata;
-	if (!dent) {
-		dent = kmalloc(sizeof(struct v9fs_dentry), GFP_KERNEL);
-		if (!dent)
-			return -ENOMEM;
-
-		spin_lock_init(&dent->lock);
-		INIT_LIST_HEAD(&dent->fidlist);
-		dentry->d_fsdata = dent;
-	}
-
-	spin_lock(&dent->lock);
-	list_add(&fid->dlist, &dent->fidlist);
-	spin_unlock(&dent->lock);
-
-	return 0;
-}
-
-/**
- * v9fs_fid_find - retrieve a fid that belongs to the specified uid
- * @dentry: dentry to look for fid in
- * @uid: return fid that belongs to the specified user
- * @any: if non-zero, return any fid associated with the dentry
- *
- */
-
-static struct p9_fid *v9fs_fid_find(struct dentry *dentry, u32 uid, int any)
-{
-	struct v9fs_dentry *dent;
-	struct p9_fid *fid, *ret;
-
-	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p) uid %d any %d\n",
-		 dentry->d_name.name, dentry, uid, any);
-	dent = (struct v9fs_dentry *) dentry->d_fsdata;
-	ret = NULL;
-	if (dent) {
-		spin_lock(&dent->lock);
-		list_for_each_entry(fid, &dent->fidlist, dlist) {
-			if (any || fid->uid == uid) {
-				ret = fid;
-				break;
-			}
-		}
-		spin_unlock(&dent->lock);
-	}
-
-	return ret;
-}
-
-/*
- * We need to hold v9ses->rename_sem as long as we hold references
- * to returned path array. Array element contain pointers to
- * dentry names.
- */
-static int build_path_from_dentry(struct v9fs_session_info *v9ses,
-				  struct dentry *dentry, char ***names)
-{
-	int n = 0, i;
-	char **wnames;
-	struct dentry *ds;
-
-	for (ds = dentry; !IS_ROOT(ds); ds = ds->d_parent)
-		n++;
-
-	wnames = kmalloc(sizeof(char *) * n, GFP_KERNEL);
-	if (!wnames)
-		goto err_out;
-
-	for (ds = dentry, i = (n-1); i >= 0; i--, ds = ds->d_parent)
-		wnames[i] = (char  *)ds->d_name.name;
-
-	*names = wnames;
-	return n;
-err_out:
-	return -ENOMEM;
-}
-
-static struct p9_fid *v9fs_fid_lookup_with_uid(struct dentry *dentry,
-					       uid_t uid, int any)
-{
-	struct dentry *ds;
-	char **wnames, *uname;
-	int i, n, l, clone, access;
-	struct v9fs_session_info *v9ses;
-	struct p9_fid *fid, *old_fid = NULL;
-
-	v9ses = v9fs_dentry2v9ses(dentry);
-	access = v9ses->flags & V9FS_ACCESS_MASK;
-	fid = v9fs_fid_find(dentry, uid, any);
-	if (fid)
-		return fid;
-	/*
-	 * we don't have a matching fid. To do a TWALK we need
-	 * parent fid. We need to prevent rename when we want to
-	 * look at the parent.
-	 */
-	down_read(&v9ses->rename_sem);
-	ds = dentry->d_parent;
-	fid = v9fs_fid_find(ds, uid, any);
-	if (fid) {
-		/* Found the parent fid do a lookup with that */
-		fid = p9_client_walk(fid, 1, (char **)&dentry->d_name.name, 1);
-		goto fid_out;
-	}
-	up_read(&v9ses->rename_sem);
-
-	/* start from the root and try to do a lookup */
-	fid = v9fs_fid_find(dentry->d_sb->s_root, uid, any);
-	if (!fid) {
-		/* the user is not attached to the fs yet */
-		if (access == V9FS_ACCESS_SINGLE)
-			return ERR_PTR(-EPERM);
-
-		if (v9fs_proto_dotu(v9ses) || v9fs_proto_dotl(v9ses))
-				uname = NULL;
-		else
-			uname = v9ses->uname;
-
-		fid = p9_client_attach(v9ses->clnt, NULL, uname, uid,
-				       v9ses->aname);
-		if (IS_ERR(fid))
-			return fid;
-
-		v9fs_fid_add(dentry->d_sb->s_root, fid);
-	}
-	/* If we are root ourself just return that */
-	if (dentry->d_sb->s_root == dentry)
-		return fid;
-	/*
-	 * Do a multipath walk with attached root.
-	 * When walking parent we need to make sure we
-	 * don't have a parallel rename happening
-	 */
-	down_read(&v9ses->rename_sem);
-	n  = build_path_from_dentry(v9ses, dentry, &wnames);
-	if (n < 0) {
-		fid = ERR_PTR(n);
-		goto err_out;
-	}
-	clone = 1;
-	i = 0;
-	while (i < n) {
-		l = min(n - i, P9_MAXWELEM);
-		/*
-		 * We need to hold rename lock when doing a multipath
-		 * walk to ensure none of the patch component change
-		 */
-		fid = p9_client_walk(fid, l, &wnames[i], clone);
-		if (IS_ERR(fid)) {
-			if (old_fid) {
-				/*
-				 * If we fail, clunk fid which are mapping
-				 * to path component and not the last component
-				 * of the path.
-				 */
-				p9_client_clunk(old_fid);
-			}
-			kfree(wnames);
-			goto err_out;
-		}
-		old_fid = fid;
-		i += l;
-		clone = 0;
-	}
-	kfree(wnames);
-fid_out:
-	if (!IS_ERR(fid))
-		v9fs_fid_add(dentry, fid);
-err_out:
-	up_read(&v9ses->rename_sem);
-	return fid;
-}
-
-/**
- * v9fs_fid_lookup - lookup for a fid, try to walk if not found
- * @dentry: dentry to look for fid in
- *
- * Look for a fid in the specified dentry for the current user.
- * If no fid is found, try to create one walking from a fid from the parent
- * dentry (if it has one), or the root dentry. If the user haven't accessed
- * the fs yet, attach now and walk from the root.
- */
-
-struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
-{
-	uid_t uid;
-	int  any, access;
-	struct v9fs_session_info *v9ses;
-
-	v9ses = v9fs_dentry2v9ses(dentry);
-	access = v9ses->flags & V9FS_ACCESS_MASK;
-	switch (access) {
-	case V9FS_ACCESS_SINGLE:
-	case V9FS_ACCESS_USER:
-	case V9FS_ACCESS_CLIENT:
-		uid = current_fsuid();
-		any = 0;
-		break;
-
-	case V9FS_ACCESS_ANY:
-		uid = v9ses->uid;
-		any = 1;
-		break;
-
-	default:
-		uid = ~0;
-		any = 0;
-		break;
-	}
-	return v9fs_fid_lookup_with_uid(dentry, uid, any);
-}
-
-struct p9_fid *v9fs_fid_clone(struct dentry *dentry)
-{
-	struct p9_fid *fid, *ret;
-
-	fid = v9fs_fid_lookup(dentry);
-	if (IS_ERR(fid))
-		return fid;
-
-	ret = p9_client_walk(fid, 0, NULL, 1);
-	return ret;
-}
-
-static struct p9_fid *v9fs_fid_clone_with_uid(struct dentry *dentry, uid_t uid)
-{
-	struct p9_fid *fid, *ret;
-
-	fid = v9fs_fid_lookup_with_uid(dentry, uid, 0);
-	if (IS_ERR(fid))
-		return fid;
-
-	ret = p9_client_walk(fid, 0, NULL, 1);
-	return ret;
-}
-
-struct p9_fid *v9fs_writeback_fid(struct dentry *dentry)
-{
-	int err;
-	struct p9_fid *fid;
-
-	fid = v9fs_fid_clone_with_uid(dentry, 0);
-	if (IS_ERR(fid))
-		goto error_out;
-	/*
-	 * writeback fid will only be used to write back the
-	 * dirty pages. We always request for the open fid in read-write
-	 * mode so that a partial page write which result in page
-	 * read can work.
-	 */
-	err = p9_client_open(fid, O_RDWR);
-	if (err < 0) {
-		p9_client_clunk(fid);
-		fid = ERR_PTR(err);
-		goto error_out;
-	}
-error_out:
-	return fid;
-}