/*
- * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2010 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1 as
+ * it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
- * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
-
#include "yaffs_allocator.h"
#include "yaffs_guts.h"
#include "yaffs_trace.h"
#ifdef CONFIG_YAFFS_YMALLOC_ALLOCATOR
-void yaffs_deinit_raw_tnodes_and_objs(yaffs_Device *dev)
+void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev)
{
dev = dev;
}
-void yaffs_init_raw_tnodes_and_objs(yaffs_Device *dev)
+void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev)
{
dev = dev;
}
-yaffs_Tnode *yaffs_alloc_raw_tnode(yaffs_Device *dev)
+struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev)
{
- return (yaffs_Tnode *)YMALLOC(dev->tnodeSize);
+ return (struct yaffs_tnode *)YMALLOC(dev->tnode_size);
}
-void yaffs_free_raw_tnode(yaffs_Device *dev, yaffs_Tnode *tn)
+void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn)
{
dev = dev;
YFREE(tn);
}
-void yaffs_init_raw_objs(yaffs_Device *dev)
+void yaffs_init_raw_objs(struct yaffs_dev *dev)
{
dev = dev;
}
-void yaffs_deinit_raw_objs(yaffs_Device *dev)
+void yaffs_deinit_raw_objs(struct yaffs_dev *dev)
{
dev = dev;
}
-yaffs_Object *yaffs_alloc_raw_obj(yaffs_Device *dev)
+struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev)
{
dev = dev;
- return (yaffs_Object *) YMALLOC(sizeof(yaffs_Object));
+ return (struct yaffs_obj *)YMALLOC(sizeof(struct yaffs_obj));
}
-
-void yaffs_free_raw_obj(yaffs_Device *dev, yaffs_Object *obj)
+void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj)
{
dev = dev;
#else
-struct yaffs_TnodeList_struct {
- struct yaffs_TnodeList_struct *next;
- yaffs_Tnode *tnodes;
+struct yaffs_tnode_list {
+ struct yaffs_tnode_list *next;
+ struct yaffs_tnode *tnodes;
};
-typedef struct yaffs_TnodeList_struct yaffs_TnodeList;
-
-struct yaffs_ObjectList_struct {
- yaffs_Object *objects;
- struct yaffs_ObjectList_struct *next;
+struct yaffs_obj_list {
+ struct yaffs_obj_list *next;
+ struct yaffs_obj *objects;
};
-typedef struct yaffs_ObjectList_struct yaffs_ObjectList;
+struct yaffs_allocator {
+ int n_tnodes_created;
+ struct yaffs_tnode *free_tnodes;
+ int n_free_tnodes;
+ struct yaffs_tnode_list *alloc_tnode_list;
+ int n_obj_created;
+ struct yaffs_obj *free_objs;
+ int n_free_objects;
-struct yaffs_AllocatorStruct {
- int nTnodesCreated;
- yaffs_Tnode *freeTnodes;
- int nFreeTnodes;
- yaffs_TnodeList *allocatedTnodeList;
-
- int nObjectsCreated;
- yaffs_Object *freeObjects;
- int nFreeObjects;
-
- yaffs_ObjectList *allocatedObjectList;
+ struct yaffs_obj_list *allocated_obj_list;
};
-typedef struct yaffs_AllocatorStruct yaffs_Allocator;
-
-
-static void yaffs_deinit_raw_tnodes(yaffs_Device *dev)
+static void yaffs_deinit_raw_tnodes(struct yaffs_dev *dev)
{
- yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
+ struct yaffs_allocator *allocator =
+ (struct yaffs_allocator *)dev->allocator;
- yaffs_TnodeList *tmp;
+ struct yaffs_tnode_list *tmp;
- if(!allocator){
+ if (!allocator) {
YBUG();
return;
}
- while (allocator->allocatedTnodeList) {
- tmp = allocator->allocatedTnodeList->next;
+ while (allocator->alloc_tnode_list) {
+ tmp = allocator->alloc_tnode_list->next;
- YFREE(allocator->allocatedTnodeList->tnodes);
- YFREE(allocator->allocatedTnodeList);
- allocator->allocatedTnodeList = tmp;
+ YFREE(allocator->alloc_tnode_list->tnodes);
+ YFREE(allocator->alloc_tnode_list);
+ allocator->alloc_tnode_list = tmp;
}
- allocator->freeTnodes = NULL;
- allocator->nFreeTnodes = 0;
- allocator->nTnodesCreated = 0;
+ allocator->free_tnodes = NULL;
+ allocator->n_free_tnodes = 0;
+ allocator->n_tnodes_created = 0;
}
-static void yaffs_init_raw_tnodes(yaffs_Device *dev)
+static void yaffs_init_raw_tnodes(struct yaffs_dev *dev)
{
- yaffs_Allocator *allocator = dev->allocator;
-
- if(allocator){
- allocator->allocatedTnodeList = NULL;
- allocator->freeTnodes = NULL;
- allocator->nFreeTnodes = 0;
- allocator->nTnodesCreated = 0;
- } else
+ struct yaffs_allocator *allocator = dev->allocator;
+
+ if (allocator) {
+ allocator->alloc_tnode_list = NULL;
+ allocator->free_tnodes = NULL;
+ allocator->n_free_tnodes = 0;
+ allocator->n_tnodes_created = 0;
+ } else {
YBUG();
+ }
}
-static int yaffs_create_tnodes(yaffs_Device *dev, int nTnodes)
+static int yaffs_create_tnodes(struct yaffs_dev *dev, int n_tnodes)
{
- yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
+ struct yaffs_allocator *allocator =
+ (struct yaffs_allocator *)dev->allocator;
int i;
- yaffs_Tnode *newTnodes;
- __u8 *mem;
- yaffs_Tnode *curr;
- yaffs_Tnode *next;
- yaffs_TnodeList *tnl;
+ struct yaffs_tnode *new_tnodes;
+ u8 *mem;
+ struct yaffs_tnode *curr;
+ struct yaffs_tnode *next;
+ struct yaffs_tnode_list *tnl;
- if(!allocator){
+ if (!allocator) {
YBUG();
return YAFFS_FAIL;
}
- if (nTnodes < 1)
+ if (n_tnodes < 1)
return YAFFS_OK;
-
/* make these things */
- newTnodes = YMALLOC(nTnodes * dev->tnodeSize);
- mem = (__u8 *)newTnodes;
+ new_tnodes = YMALLOC(n_tnodes * dev->tnode_size);
+ mem = (u8 *) new_tnodes;
- if (!newTnodes) {
+ if (!new_tnodes) {
T(YAFFS_TRACE_ERROR,
- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
+ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
return YAFFS_FAIL;
}
/* New hookup for wide tnodes */
- for (i = 0; i < nTnodes - 1; i++) {
- curr = (yaffs_Tnode *) &mem[i * dev->tnodeSize];
- next = (yaffs_Tnode *) &mem[(i+1) * dev->tnodeSize];
+ for (i = 0; i < n_tnodes - 1; i++) {
+ curr = (struct yaffs_tnode *)&mem[i * dev->tnode_size];
+ next = (struct yaffs_tnode *)&mem[(i + 1) * dev->tnode_size];
curr->internal[0] = next;
}
- curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * dev->tnodeSize];
- curr->internal[0] = allocator->freeTnodes;
- allocator->freeTnodes = (yaffs_Tnode *)mem;
+ curr = (struct yaffs_tnode *)&mem[(n_tnodes - 1) * dev->tnode_size];
+ curr->internal[0] = allocator->free_tnodes;
+ allocator->free_tnodes = (struct yaffs_tnode *)mem;
- allocator->nFreeTnodes += nTnodes;
- allocator->nTnodesCreated += nTnodes;
+ allocator->n_free_tnodes += n_tnodes;
+ allocator->n_tnodes_created += n_tnodes;
/* Now add this bunch of tnodes to a list for freeing up.
* NB If we can't add this to the management list it isn't fatal
* but it just means we can't free this bunch of tnodes later.
*/
- tnl = YMALLOC(sizeof(yaffs_TnodeList));
+ tnl = YMALLOC(sizeof(struct yaffs_tnode_list));
if (!tnl) {
T(YAFFS_TRACE_ERROR,
(TSTR
("yaffs: Could not add tnodes to management list" TENDSTR)));
- return YAFFS_FAIL;
+ return YAFFS_FAIL;
} else {
- tnl->tnodes = newTnodes;
- tnl->next = allocator->allocatedTnodeList;
- allocator->allocatedTnodeList = tnl;
+ tnl->tnodes = new_tnodes;
+ tnl->next = allocator->alloc_tnode_list;
+ allocator->alloc_tnode_list = tnl;
}
T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR)));
return YAFFS_OK;
}
-
-yaffs_Tnode *yaffs_alloc_raw_tnode(yaffs_Device *dev)
+struct yaffs_tnode *yaffs_alloc_raw_tnode(struct yaffs_dev *dev)
{
- yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
- yaffs_Tnode *tn = NULL;
+ struct yaffs_allocator *allocator =
+ (struct yaffs_allocator *)dev->allocator;
+ struct yaffs_tnode *tn = NULL;
- if(!allocator){
+ if (!allocator) {
YBUG();
return NULL;
}
/* If there are none left make more */
- if (!allocator->freeTnodes)
+ if (!allocator->free_tnodes)
yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES);
- if (allocator->freeTnodes) {
- tn = allocator->freeTnodes;
- allocator->freeTnodes = allocator->freeTnodes->internal[0];
- allocator->nFreeTnodes--;
+ if (allocator->free_tnodes) {
+ tn = allocator->free_tnodes;
+ allocator->free_tnodes = allocator->free_tnodes->internal[0];
+ allocator->n_free_tnodes--;
}
return tn;
}
/* FreeTnode frees up a tnode and puts it back on the free list */
-void yaffs_free_raw_tnode(yaffs_Device *dev, yaffs_Tnode *tn)
+void yaffs_free_raw_tnode(struct yaffs_dev *dev, struct yaffs_tnode *tn)
{
- yaffs_Allocator *allocator = dev->allocator;
+ struct yaffs_allocator *allocator = dev->allocator;
- if(!allocator){
+ if (!allocator) {
YBUG();
return;
}
if (tn) {
- tn->internal[0] = allocator->freeTnodes;
- allocator->freeTnodes = tn;
- allocator->nFreeTnodes++;
+ tn->internal[0] = allocator->free_tnodes;
+ allocator->free_tnodes = tn;
+ allocator->n_free_tnodes++;
}
- dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
+ dev->checkpoint_blocks_required = 0; /* force recalculation */
}
-
-
-static void yaffs_init_raw_objs(yaffs_Device *dev)
+static void yaffs_init_raw_objs(struct yaffs_dev *dev)
{
- yaffs_Allocator *allocator = dev->allocator;
+ struct yaffs_allocator *allocator = dev->allocator;
- if(allocator) {
- allocator->allocatedObjectList = NULL;
- allocator->freeObjects = NULL;
- allocator->nFreeObjects = 0;
- } else
+ if (allocator) {
+ allocator->allocated_obj_list = NULL;
+ allocator->free_objs = NULL;
+ allocator->n_free_objects = 0;
+ } else {
YBUG();
+ }
}
-static void yaffs_deinit_raw_objs(yaffs_Device *dev)
+static void yaffs_deinit_raw_objs(struct yaffs_dev *dev)
{
- yaffs_Allocator *allocator = dev->allocator;
- yaffs_ObjectList *tmp;
+ struct yaffs_allocator *allocator = dev->allocator;
+ struct yaffs_obj_list *tmp;
- if(!allocator){
+ if (!allocator) {
YBUG();
return;
}
- while (allocator->allocatedObjectList) {
- tmp = allocator->allocatedObjectList->next;
- YFREE(allocator->allocatedObjectList->objects);
- YFREE(allocator->allocatedObjectList);
+ while (allocator->allocated_obj_list) {
+ tmp = allocator->allocated_obj_list->next;
+ YFREE(allocator->allocated_obj_list->objects);
+ YFREE(allocator->allocated_obj_list);
- allocator->allocatedObjectList = tmp;
+ allocator->allocated_obj_list = tmp;
}
- allocator->freeObjects = NULL;
- allocator->nFreeObjects = 0;
- allocator->nObjectsCreated = 0;
+ allocator->free_objs = NULL;
+ allocator->n_free_objects = 0;
+ allocator->n_obj_created = 0;
}
-
-static int yaffs_create_free_objs(yaffs_Device *dev, int nObjects)
+static int yaffs_create_free_objs(struct yaffs_dev *dev, int n_obj)
{
- yaffs_Allocator *allocator = dev->allocator;
+ struct yaffs_allocator *allocator = dev->allocator;
int i;
- yaffs_Object *newObjects;
- yaffs_ObjectList *list;
+ struct yaffs_obj *new_objs;
+ struct yaffs_obj_list *list;
- if(!allocator){
+ if (!allocator) {
YBUG();
return YAFFS_FAIL;
}
- if (nObjects < 1)
+ if (n_obj < 1)
return YAFFS_OK;
/* make these things */
- newObjects = YMALLOC(nObjects * sizeof(yaffs_Object));
- list = YMALLOC(sizeof(yaffs_ObjectList));
+ new_objs = YMALLOC(n_obj * sizeof(struct yaffs_obj));
+ list = YMALLOC(sizeof(struct yaffs_obj_list));
- if (!newObjects || !list) {
- if (newObjects){
- YFREE(newObjects);
- newObjects = NULL;
+ if (!new_objs || !list) {
+ if (new_objs) {
+ YFREE(new_objs);
+ new_objs = NULL;
}
- if (list){
+ if (list) {
YFREE(list);
list = NULL;
}
}
/* Hook them into the free list */
- for (i = 0; i < nObjects - 1; i++) {
- newObjects[i].siblings.next =
- (struct ylist_head *)(&newObjects[i + 1]);
+ for (i = 0; i < n_obj - 1; i++) {
+ new_objs[i].siblings.next =
+ (struct list_head *)(&new_objs[i + 1]);
}
- newObjects[nObjects - 1].siblings.next = (void *)allocator->freeObjects;
- allocator->freeObjects = newObjects;
- allocator->nFreeObjects += nObjects;
- allocator->nObjectsCreated += nObjects;
+ new_objs[n_obj - 1].siblings.next = (void *)allocator->free_objs;
+ allocator->free_objs = new_objs;
+ allocator->n_free_objects += n_obj;
+ allocator->n_obj_created += n_obj;
/* Now add this bunch of Objects to a list for freeing up. */
- list->objects = newObjects;
- list->next = allocator->allocatedObjectList;
- allocator->allocatedObjectList = list;
+ list->objects = new_objs;
+ list->next = allocator->allocated_obj_list;
+ allocator->allocated_obj_list = list;
return YAFFS_OK;
}
-yaffs_Object *yaffs_alloc_raw_obj(yaffs_Device *dev)
+struct yaffs_obj *yaffs_alloc_raw_obj(struct yaffs_dev *dev)
{
- yaffs_Object *obj = NULL;
- yaffs_Allocator *allocator = dev->allocator;
+ struct yaffs_obj *obj = NULL;
+ struct yaffs_allocator *allocator = dev->allocator;
- if(!allocator) {
+ if (!allocator) {
YBUG();
return obj;
}
/* If there are none left make more */
- if (!allocator->freeObjects)
+ if (!allocator->free_objs)
yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS);
- if (allocator->freeObjects) {
- obj = allocator->freeObjects;
- allocator->freeObjects =
- (yaffs_Object *) (allocator->freeObjects->siblings.next);
- allocator->nFreeObjects--;
+ if (allocator->free_objs) {
+ obj = allocator->free_objs;
+ allocator->free_objs =
+ (struct yaffs_obj *)(allocator->free_objs->siblings.next);
+ allocator->n_free_objects--;
}
return obj;
}
-
-void yaffs_free_raw_obj(yaffs_Device *dev, yaffs_Object *obj)
+void yaffs_free_raw_obj(struct yaffs_dev *dev, struct yaffs_obj *obj)
{
- yaffs_Allocator *allocator = dev->allocator;
+ struct yaffs_allocator *allocator = dev->allocator;
- if(!allocator)
+ if (!allocator)
YBUG();
else {
/* Link into the free list. */
- obj->siblings.next = (struct ylist_head *)(allocator->freeObjects);
- allocator->freeObjects = obj;
- allocator->nFreeObjects++;
+ obj->siblings.next = (struct list_head *)(allocator->free_objs);
+ allocator->free_objs = obj;
+ allocator->n_free_objects++;
}
}
-void yaffs_deinit_raw_tnodes_and_objs(yaffs_Device *dev)
+void yaffs_deinit_raw_tnodes_and_objs(struct yaffs_dev *dev)
{
- if(dev->allocator){
+ if (dev->allocator) {
yaffs_deinit_raw_tnodes(dev);
yaffs_deinit_raw_objs(dev);
YFREE(dev->allocator);
- dev->allocator=NULL;
- } else
+ dev->allocator = NULL;
+ } else {
YBUG();
+ }
}
-void yaffs_init_raw_tnodes_and_objs(yaffs_Device *dev)
+void yaffs_init_raw_tnodes_and_objs(struct yaffs_dev *dev)
{
- yaffs_Allocator *allocator;
+ struct yaffs_allocator *allocator;
- if(!dev->allocator){
- allocator = YMALLOC(sizeof(yaffs_Allocator));
- if(allocator){
+ if (!dev->allocator) {
+ allocator = YMALLOC(sizeof(struct yaffs_allocator));
+ if (allocator) {
dev->allocator = allocator;
yaffs_init_raw_tnodes(dev);
yaffs_init_raw_objs(dev);
}
- } else
+ } else {
YBUG();
+ }
}
-
#endif
projects / yaffs2.git / blobdiff