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, 401 deletions

diff --git a/ANDROID_3.4.5/fs/afs/volume.c b/ANDROID_3.4.5/fs/afs/volume.c
deleted file mode 100644
index 401eeb21..00000000
--- a/ANDROID_3.4.5/fs/afs/volume.c
+++ /dev/null
@@ -1,401 +0,0 @@
-/* AFS volume management
- *
- * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/pagemap.h>
-#include <linux/sched.h>
-#include "internal.h"
-
-static const char *afs_voltypes[] = { "R/W", "R/O", "BAK" };
-
-/*
- * lookup a volume by name
- * - this can be one of the following:
- *	"%[cell:]volume[.]"		R/W volume
- *	"#[cell:]volume[.]"		R/O or R/W volume (rwparent=0),
- *					 or R/W (rwparent=1) volume
- *	"%[cell:]volume.readonly"	R/O volume
- *	"#[cell:]volume.readonly"	R/O volume
- *	"%[cell:]volume.backup"		Backup volume
- *	"#[cell:]volume.backup"		Backup volume
- *
- * The cell name is optional, and defaults to the current cell.
- *
- * See "The Rules of Mount Point Traversal" in Chapter 5 of the AFS SysAdmin
- * Guide
- * - Rule 1: Explicit type suffix forces access of that type or nothing
- *           (no suffix, then use Rule 2 & 3)
- * - Rule 2: If parent volume is R/O, then mount R/O volume by preference, R/W
- *           if not available
- * - Rule 3: If parent volume is R/W, then only mount R/W volume unless
- *           explicitly told otherwise
- */
-struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
-{
-	struct afs_vlocation *vlocation = NULL;
-	struct afs_volume *volume = NULL;
-	struct afs_server *server = NULL;
-	char srvtmask;
-	int ret, loop;
-
-	_enter("{%*.*s,%d}",
-	       params->volnamesz, params->volnamesz, params->volname, params->rwpath);
-
-	/* lookup the volume location record */
-	vlocation = afs_vlocation_lookup(params->cell, params->key,
-					 params->volname, params->volnamesz);
-	if (IS_ERR(vlocation)) {
-		ret = PTR_ERR(vlocation);
-		vlocation = NULL;
-		goto error;
-	}
-
-	/* make the final decision on the type we want */
-	ret = -ENOMEDIUM;
-	if (params->force && !(vlocation->vldb.vidmask & (1 << params->type)))
-		goto error;
-
-	srvtmask = 0;
-	for (loop = 0; loop < vlocation->vldb.nservers; loop++)
-		srvtmask |= vlocation->vldb.srvtmask[loop];
-
-	if (params->force) {
-		if (!(srvtmask & (1 << params->type)))
-			goto error;
-	} else if (srvtmask & AFS_VOL_VTM_RO) {
-		params->type = AFSVL_ROVOL;
-	} else if (srvtmask & AFS_VOL_VTM_RW) {
-		params->type = AFSVL_RWVOL;
-	} else {
-		goto error;
-	}
-
-	down_write(&params->cell->vl_sem);
-
-	/* is the volume already active? */
-	if (vlocation->vols[params->type]) {
-		/* yes - re-use it */
-		volume = vlocation->vols[params->type];
-		afs_get_volume(volume);
-		goto success;
-	}
-
-	/* create a new volume record */
-	_debug("creating new volume record");
-
-	ret = -ENOMEM;
-	volume = kzalloc(sizeof(struct afs_volume), GFP_KERNEL);
-	if (!volume)
-		goto error_up;
-
-	atomic_set(&volume->usage, 1);
-	volume->type		= params->type;
-	volume->type_force	= params->force;
-	volume->cell		= params->cell;
-	volume->vid		= vlocation->vldb.vid[params->type];
-
-	ret = bdi_setup_and_register(&volume->bdi, "afs", BDI_CAP_MAP_COPY);
-	if (ret)
-		goto error_bdi;
-
-	init_rwsem(&volume->server_sem);
-
-	/* look up all the applicable server records */
-	for (loop = 0; loop < 8; loop++) {
-		if (vlocation->vldb.srvtmask[loop] & (1 << volume->type)) {
-			server = afs_lookup_server(
-			       volume->cell, &vlocation->vldb.servers[loop]);
-			if (IS_ERR(server)) {
-				ret = PTR_ERR(server);
-				goto error_discard;
-			}
-
-			volume->servers[volume->nservers] = server;
-			volume->nservers++;
-		}
-	}
-
-	/* attach the cache and volume location */
-#ifdef CONFIG_AFS_FSCACHE
-	volume->cache = fscache_acquire_cookie(vlocation->cache,
-					       &afs_volume_cache_index_def,
-					       volume);
-#endif
-	afs_get_vlocation(vlocation);
-	volume->vlocation = vlocation;
-
-	vlocation->vols[volume->type] = volume;
-
-success:
-	_debug("kAFS selected %s volume %08x",
-	       afs_voltypes[volume->type], volume->vid);
-	up_write(&params->cell->vl_sem);
-	afs_put_vlocation(vlocation);
-	_leave(" = %p", volume);
-	return volume;
-
-	/* clean up */
-error_up:
-	up_write(&params->cell->vl_sem);
-error:
-	afs_put_vlocation(vlocation);
-	_leave(" = %d", ret);
-	return ERR_PTR(ret);
-
-error_discard:
-	bdi_destroy(&volume->bdi);
-error_bdi:
-	up_write(&params->cell->vl_sem);
-
-	for (loop = volume->nservers - 1; loop >= 0; loop--)
-		afs_put_server(volume->servers[loop]);
-
-	kfree(volume);
-	goto error;
-}
-
-/*
- * destroy a volume record
- */
-void afs_put_volume(struct afs_volume *volume)
-{
-	struct afs_vlocation *vlocation;
-	int loop;
-
-	if (!volume)
-		return;
-
-	_enter("%p", volume);
-
-	ASSERTCMP(atomic_read(&volume->usage), >, 0);
-
-	vlocation = volume->vlocation;
-
-	/* to prevent a race, the decrement and the dequeue must be effectively
-	 * atomic */
-	down_write(&vlocation->cell->vl_sem);
-
-	if (likely(!atomic_dec_and_test(&volume->usage))) {
-		up_write(&vlocation->cell->vl_sem);
-		_leave("");
-		return;
-	}
-
-	vlocation->vols[volume->type] = NULL;
-
-	up_write(&vlocation->cell->vl_sem);
-
-	/* finish cleaning up the volume */
-#ifdef CONFIG_AFS_FSCACHE
-	fscache_relinquish_cookie(volume->cache, 0);
-#endif
-	afs_put_vlocation(vlocation);
-
-	for (loop = volume->nservers - 1; loop >= 0; loop--)
-		afs_put_server(volume->servers[loop]);
-
-	bdi_destroy(&volume->bdi);
-	kfree(volume);
-
-	_leave(" [destroyed]");
-}
-
-/*
- * pick a server to use to try accessing this volume
- * - returns with an elevated usage count on the server chosen
- */
-struct afs_server *afs_volume_pick_fileserver(struct afs_vnode *vnode)
-{
-	struct afs_volume *volume = vnode->volume;
-	struct afs_server *server;
-	int ret, state, loop;
-
-	_enter("%s", volume->vlocation->vldb.name);
-
-	/* stick with the server we're already using if we can */
-	if (vnode->server && vnode->server->fs_state == 0) {
-		afs_get_server(vnode->server);
-		_leave(" = %p [current]", vnode->server);
-		return vnode->server;
-	}
-
-	down_read(&volume->server_sem);
-
-	/* handle the no-server case */
-	if (volume->nservers == 0) {
-		ret = volume->rjservers ? -ENOMEDIUM : -ESTALE;
-		up_read(&volume->server_sem);
-		_leave(" = %d [no servers]", ret);
-		return ERR_PTR(ret);
-	}
-
-	/* basically, just search the list for the first live server and use
-	 * that */
-	ret = 0;
-	for (loop = 0; loop < volume->nservers; loop++) {
-		server = volume->servers[loop];
-		state = server->fs_state;
-
-		_debug("consider %d [%d]", loop, state);
-
-		switch (state) {
-			/* found an apparently healthy server */
-		case 0:
-			afs_get_server(server);
-			up_read(&volume->server_sem);
-			_leave(" = %p (picked %08x)",
-			       server, ntohl(server->addr.s_addr));
-			return server;
-
-		case -ENETUNREACH:
-			if (ret == 0)
-				ret = state;
-			break;
-
-		case -EHOSTUNREACH:
-			if (ret == 0 ||
-			    ret == -ENETUNREACH)
-				ret = state;
-			break;
-
-		case -ECONNREFUSED:
-			if (ret == 0 ||
-			    ret == -ENETUNREACH ||
-			    ret == -EHOSTUNREACH)
-				ret = state;
-			break;
-
-		default:
-		case -EREMOTEIO:
-			if (ret == 0 ||
-			    ret == -ENETUNREACH ||
-			    ret == -EHOSTUNREACH ||
-			    ret == -ECONNREFUSED)
-				ret = state;
-			break;
-		}
-	}
-
-	/* no available servers
-	 * - TODO: handle the no active servers case better
-	 */
-	up_read(&volume->server_sem);
-	_leave(" = %d", ret);
-	return ERR_PTR(ret);
-}
-
-/*
- * release a server after use
- * - releases the ref on the server struct that was acquired by picking
- * - records result of using a particular server to access a volume
- * - return 0 to try again, 1 if okay or to issue error
- * - the caller must release the server struct if result was 0
- */
-int afs_volume_release_fileserver(struct afs_vnode *vnode,
-				  struct afs_server *server,
-				  int result)
-{
-	struct afs_volume *volume = vnode->volume;
-	unsigned loop;
-
-	_enter("%s,%08x,%d",
-	       volume->vlocation->vldb.name, ntohl(server->addr.s_addr),
-	       result);
-
-	switch (result) {
-		/* success */
-	case 0:
-		server->fs_act_jif = jiffies;
-		server->fs_state = 0;
-		_leave("");
-		return 1;
-
-		/* the fileserver denied all knowledge of the volume */
-	case -ENOMEDIUM:
-		server->fs_act_jif = jiffies;
-		down_write(&volume->server_sem);
-
-		/* firstly, find where the server is in the active list (if it
-		 * is) */
-		for (loop = 0; loop < volume->nservers; loop++)
-			if (volume->servers[loop] == server)
-				goto present;
-
-		/* no longer there - may have been discarded by another op */
-		goto try_next_server_upw;
-
-	present:
-		volume->nservers--;
-		memmove(&volume->servers[loop],
-			&volume->servers[loop + 1],
-			sizeof(volume->servers[loop]) *
-			(volume->nservers - loop));
-		volume->servers[volume->nservers] = NULL;
-		afs_put_server(server);
-		volume->rjservers++;
-
-		if (volume->nservers > 0)
-			/* another server might acknowledge its existence */
-			goto try_next_server_upw;
-
-		/* handle the case where all the fileservers have rejected the
-		 * volume
-		 * - TODO: try asking the fileservers for volume information
-		 * - TODO: contact the VL server again to see if the volume is
-		 *         no longer registered
-		 */
-		up_write(&volume->server_sem);
-		afs_put_server(server);
-		_leave(" [completely rejected]");
-		return 1;
-
-		/* problem reaching the server */
-	case -ENETUNREACH:
-	case -EHOSTUNREACH:
-	case -ECONNREFUSED:
-	case -ETIME:
-	case -ETIMEDOUT:
-	case -EREMOTEIO:
-		/* mark the server as dead
-		 * TODO: vary dead timeout depending on error
-		 */
-		spin_lock(&server->fs_lock);
-		if (!server->fs_state) {
-			server->fs_dead_jif = jiffies + HZ * 10;
-			server->fs_state = result;
-			printk("kAFS: SERVER DEAD state=%d\n", result);
-		}
-		spin_unlock(&server->fs_lock);
-		goto try_next_server;
-
-		/* miscellaneous error */
-	default:
-		server->fs_act_jif = jiffies;
-	case -ENOMEM:
-	case -ENONET:
-		/* tell the caller to accept the result */
-		afs_put_server(server);
-		_leave(" [local failure]");
-		return 1;
-	}
-
-	/* tell the caller to loop around and try the next server */
-try_next_server_upw:
-	up_write(&volume->server_sem);
-try_next_server:
-	afs_put_server(server);
-	_leave(" [try next server]");
-	return 0;
-}