#include "yportenv.h"
#include "yaffs_trace.h"
-#include "yaffsinterface.h"
#include "yaffs_guts.h"
#include "yaffs_tagsvalidity.h"
#include "yaffs_getblockinfo.h"
/* Robustification (if it ever comes about...) */
static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block);
static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk,
- int erasedOk);
+ int erased_ok);
static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
const __u8 *data,
const yaffs_ext_tags *tags);
static int yaffs_write_new_chunk(yaffs_dev_t *dev,
const __u8 *buffer,
yaffs_ext_tags *tags,
- int useReserve);
+ int use_reserver);
static yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number,
static int yaffs_unlink_worker(yaffs_obj_t *obj);
static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id,
- int chunkInObject);
+ int chunk_obj);
-static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve,
- yaffs_block_info_t **blockUsedPtr);
+static int yaffs_alloc_chunk(yaffs_dev_t *dev, int use_reserver,
+ yaffs_block_info_t **block_ptr);
static void yaffs_check_obj_details_loaded(yaffs_obj_t *in);
yaffs_ext_tags *tags);
-static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize);
-static void yaffs_load_oh_from_name(yaffs_dev_t *dev,YCHAR *ohName, const YCHAR *name);
+static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *oh_name, int buff_size);
+static void yaffs_load_oh_from_name(yaffs_dev_t *dev,YCHAR *oh_name, const YCHAR *name);
/* Function to calculate chunk and offset */
-static void yaffs_addr_to_chunk(yaffs_dev_t *dev, loff_t addr, int *chunkOut,
- __u32 *offsetOut)
+static void yaffs_addr_to_chunk(yaffs_dev_t *dev, loff_t addr, int *chunk_out,
+ __u32 *offset_out)
{
int chunk;
__u32 offset;
} else {
/* Non power-of-2 case */
- loff_t chunkBase;
+ loff_t chunk_base;
chunk /= dev->chunk_div;
- chunkBase = ((loff_t)chunk) * dev->data_bytes_per_chunk;
- offset = (__u32)(addr - chunkBase);
+ chunk_base = ((loff_t)chunk) * dev->data_bytes_per_chunk;
+ offset = (__u32)(addr - chunk_base);
}
- *chunkOut = chunk;
- *offsetOut = offset;
+ *chunk_out = chunk;
+ *offset_out = offset;
}
/* Function to return the number of shifts for a power of 2 greater than or
* be hellishly efficient.
*/
-static __u32 ShiftsGE(__u32 x)
+static __u32 calc_shifts_ceiling(__u32 x)
{
- int extraBits;
- int nShifts;
+ int extra_bits;
+ int shifts;
- nShifts = extraBits = 0;
+ shifts = extra_bits = 0;
while (x > 1) {
if (x & 1)
- extraBits++;
+ extra_bits++;
x >>= 1;
- nShifts++;
+ shifts++;
}
- if (extraBits)
- nShifts++;
+ if (extra_bits)
+ shifts++;
- return nShifts;
+ return shifts;
}
/* Function to return the number of shifts to get a 1 in bit 0
*/
-static __u32 Shifts(__u32 x)
+static __u32 calc_shifts(__u32 x)
{
- __u32 nShifts;
+ __u32 shifts;
- nShifts = 0;
+ shifts = 0;
if (!x)
return 0;
while (!(x&1)) {
x >>= 1;
- nShifts++;
+ shifts++;
}
- return nShifts;
+ return shifts;
}
yaffs_ext_tags *tags)
{
int retval = YAFFS_OK;
- yaffs_ext_tags tempTags;
+ yaffs_ext_tags temp_tags;
__u8 *buffer = yaffs_get_temp_buffer(dev,__LINE__);
int result;
- result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&tempTags);
+ result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&temp_tags);
if(memcmp(buffer,data,dev->data_bytes_per_chunk) ||
- tempTags.obj_id != tags->obj_id ||
- tempTags.chunk_id != tags->chunk_id ||
- tempTags.n_bytes != tags->n_bytes)
+ temp_tags.obj_id != tags->obj_id ||
+ temp_tags.chunk_id != tags->chunk_id ||
+ temp_tags.n_bytes != tags->n_bytes)
retval = YAFFS_FAIL;
yaffs_release_temp_buffer(dev, buffer, __LINE__);
static int yaffs_write_new_chunk(struct yaffs_dev_s *dev,
const __u8 *data,
yaffs_ext_tags *tags,
- int useReserve)
+ int use_reserver)
{
int attempts = 0;
- int writeOk = 0;
+ int write_ok = 0;
int chunk;
yaffs2_checkpt_invalidate(dev);
do {
yaffs_block_info_t *bi = 0;
- int erasedOk = 0;
+ int erased_ok = 0;
- chunk = yaffs_alloc_chunk(dev, useReserve, &bi);
+ chunk = yaffs_alloc_chunk(dev, use_reserver, &bi);
if (chunk < 0) {
/* no space */
break;
bi->skip_erased_check = 0;
if (!bi->skip_erased_check) {
- erasedOk = yaffs_check_chunk_erased(dev, chunk);
- if (erasedOk != YAFFS_OK) {
+ erased_ok = yaffs_check_chunk_erased(dev, chunk);
+ if (erased_ok != YAFFS_OK) {
T(YAFFS_TRACE_ERROR,
(TSTR("**>> yaffs chunk %d was not erased"
TENDSTR), chunk));
}
}
- writeOk = yaffs_wr_chunk_tags_nand(dev, chunk,
+ write_ok = yaffs_wr_chunk_tags_nand(dev, chunk,
data, tags);
if(!bi->skip_erased_check)
- writeOk = yaffs_verify_chunk_written(dev, chunk, data, tags);
+ write_ok = yaffs_verify_chunk_written(dev, chunk, data, tags);
- if (writeOk != YAFFS_OK) {
+ if (write_ok != YAFFS_OK) {
/* Clean up aborted write, skip to next block and
* try another chunk */
- yaffs_handle_chunk_wr_error(dev, chunk, erasedOk);
+ yaffs_handle_chunk_wr_error(dev, chunk, erased_ok);
continue;
}
/* Copy the data into the robustification buffer */
yaffs_handle_chunk_wr_ok(dev, chunk, data, tags);
- } while (writeOk != YAFFS_OK &&
+ } while (write_ok != YAFFS_OK &&
(yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
- if (!writeOk)
+ if (!write_ok)
chunk = -1;
if (attempts > 1) {
}
static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk,
- int erasedOk)
+ int erased_ok)
{
int flash_block = nand_chunk / dev->param.chunks_per_block;
yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block);
yaffs_handle_chunk_error(dev, bi);
- if (erasedOk) {
+ if (erased_ok) {
/* Was an actual write failure, so mark the block for retirement */
bi->needs_retiring = 1;
T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh)
{
#ifdef CONFIG_YAFFS_AUTO_UNICODE
- YCHAR tmpName[YAFFS_MAX_NAME_LENGTH+1];
- memset(tmpName,0,sizeof(tmpName));
- yaffs_load_name_from_oh(obj->my_dev,tmpName,oh->name,YAFFS_MAX_NAME_LENGTH+1);
- yaffs_set_obj_name(obj,tmpName);
+ YCHAR tmp_name[YAFFS_MAX_NAME_LENGTH+1];
+ memset(tmp_name,0,sizeof(tmp_name));
+ yaffs_load_name_from_oh(obj->my_dev,tmp_name,oh->name,YAFFS_MAX_NAME_LENGTH+1);
+ yaffs_set_obj_name(obj,tmp_name);
#else
yaffs_set_obj_name(obj,oh->name);
#endif
unsigned val)
{
__u32 *map = (__u32 *)tn;
- __u32 bitInMap;
- __u32 bitInWord;
- __u32 wordInMap;
+ __u32 bit_in_map;
+ __u32 bit_in_word;
+ __u32 word_in_map;
__u32 mask;
pos &= YAFFS_TNODES_LEVEL0_MASK;
val >>= dev->chunk_grp_bits;
- bitInMap = pos * dev->tnode_width;
- wordInMap = bitInMap / 32;
- bitInWord = bitInMap & (32 - 1);
+ bit_in_map = pos * dev->tnode_width;
+ word_in_map = bit_in_map / 32;
+ bit_in_word = bit_in_map & (32 - 1);
- mask = dev->tnode_mask << bitInWord;
+ mask = dev->tnode_mask << bit_in_word;
- map[wordInMap] &= ~mask;
- map[wordInMap] |= (mask & (val << bitInWord));
+ map[word_in_map] &= ~mask;
+ map[word_in_map] |= (mask & (val << bit_in_word));
- if (dev->tnode_width > (32 - bitInWord)) {
- bitInWord = (32 - bitInWord);
- wordInMap++;;
- mask = dev->tnode_mask >> (/*dev->tnode_width -*/ bitInWord);
- map[wordInMap] &= ~mask;
- map[wordInMap] |= (mask & (val >> bitInWord));
+ if (dev->tnode_width > (32 - bit_in_word)) {
+ bit_in_word = (32 - bit_in_word);
+ word_in_map++;;
+ mask = dev->tnode_mask >> (/*dev->tnode_width -*/ bit_in_word);
+ map[word_in_map] &= ~mask;
+ map[word_in_map] |= (mask & (val >> bit_in_word));
}
}
unsigned pos)
{
__u32 *map = (__u32 *)tn;
- __u32 bitInMap;
- __u32 bitInWord;
- __u32 wordInMap;
+ __u32 bit_in_map;
+ __u32 bit_in_word;
+ __u32 word_in_map;
__u32 val;
pos &= YAFFS_TNODES_LEVEL0_MASK;
- bitInMap = pos * dev->tnode_width;
- wordInMap = bitInMap / 32;
- bitInWord = bitInMap & (32 - 1);
+ bit_in_map = pos * dev->tnode_width;
+ word_in_map = bit_in_map / 32;
+ bit_in_word = bit_in_map & (32 - 1);
- val = map[wordInMap] >> bitInWord;
+ val = map[word_in_map] >> bit_in_word;
- if (dev->tnode_width > (32 - bitInWord)) {
- bitInWord = (32 - bitInWord);
- wordInMap++;;
- val |= (map[wordInMap] << bitInWord);
+ if (dev->tnode_width > (32 - bit_in_word)) {
+ bit_in_word = (32 - bit_in_word);
+ word_in_map++;;
+ val |= (map[word_in_map] << bit_in_word);
}
val &= dev->tnode_mask;
{
yaffs_tnode_t *tn = file_struct->top;
__u32 i;
- int requiredTallness;
+ int required_depth;
int level = file_struct->top_level;
dev=dev;
/* First check we're tall enough (ie enough top_level) */
i = chunk_id >> YAFFS_TNODES_LEVEL0_BITS;
- requiredTallness = 0;
+ required_depth = 0;
while (i) {
i >>= YAFFS_TNODES_INTERNAL_BITS;
- requiredTallness++;
+ required_depth++;
}
- if (requiredTallness > file_struct->top_level)
+ if (required_depth > file_struct->top_level)
return NULL; /* Not tall enough, so we can't find it */
/* Traverse down to level 0 */
__u32 chunk_id,
yaffs_tnode_t *passed_tn)
{
- int requiredTallness;
+ int required_depth;
int i;
int l;
yaffs_tnode_t *tn;
/* First check we're tall enough (ie enough top_level) */
x = chunk_id >> YAFFS_TNODES_LEVEL0_BITS;
- requiredTallness = 0;
+ required_depth = 0;
while (x) {
x >>= YAFFS_TNODES_INTERNAL_BITS;
- requiredTallness++;
+ required_depth++;
}
- if (requiredTallness > file_struct->top_level) {
+ if (required_depth > file_struct->top_level) {
/* Not tall enough, gotta make the tree taller */
- for (i = file_struct->top_level; i < requiredTallness; i++) {
+ for (i = file_struct->top_level; i < required_depth; i++) {
tn = yaffs_get_tnode(dev);
return tn;
}
-static int yaffs_find_chunk_in_group(yaffs_dev_t *dev, int theChunk,
+static int yaffs_find_chunk_in_group(yaffs_dev_t *dev, int the_chunk,
yaffs_ext_tags *tags, int obj_id,
int inode_chunk)
{
int j;
- for (j = 0; theChunk && j < dev->chunk_grp_size; j++) {
- if (yaffs_check_chunk_bit(dev, theChunk / dev->param.chunks_per_block,
- theChunk % dev->param.chunks_per_block)) {
+ for (j = 0; the_chunk && j < dev->chunk_grp_size; j++) {
+ if (yaffs_check_chunk_bit(dev, the_chunk / dev->param.chunks_per_block,
+ the_chunk % dev->param.chunks_per_block)) {
if(dev->chunk_grp_size == 1)
- return theChunk;
+ return the_chunk;
else {
- yaffs_rd_chunk_tags_nand(dev, theChunk, NULL,
+ yaffs_rd_chunk_tags_nand(dev, the_chunk, NULL,
tags);
if (yaffs_tags_match(tags, obj_id, inode_chunk)) {
/* found it; */
- return theChunk;
+ return the_chunk;
}
}
}
- theChunk++;
+ the_chunk++;
}
return -1;
}
{
int i;
int inode_chunk;
- int theChunk;
+ int the_chunk;
yaffs_ext_tags tags;
- int foundChunk;
+ int found_chunk;
yaffs_dev_t *dev = in->my_dev;
- int allDone = 1;
+ int all_done = 1;
if (tn) {
if (level > 0) {
- for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
+ for (i = YAFFS_NTNODES_INTERNAL - 1; all_done && i >= 0;
i--) {
if (tn->internal[i]) {
if (limit && (*limit) < 0) {
- allDone = 0;
+ all_done = 0;
} else {
- allDone =
+ all_done =
yaffs_del_worker(in,
tn->
internal
+ i,
limit);
}
- if (allDone) {
+ if (all_done) {
yaffs_free_tnode(dev,
tn->
internal[i]);
}
}
}
- return (allDone) ? 1 : 0;
+ return (all_done) ? 1 : 0;
} else if (level == 0) {
- int hitLimit = 0;
+ int hit_limit = 0;
- for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
+ for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hit_limit;
i--) {
- theChunk = yaffs_get_group_base(dev, tn, i);
- if (theChunk) {
+ the_chunk = yaffs_get_group_base(dev, tn, i);
+ if (the_chunk) {
inode_chunk = (chunk_offset <<
YAFFS_TNODES_LEVEL0_BITS) + i;
- foundChunk =
+ found_chunk =
yaffs_find_chunk_in_group(dev,
- theChunk,
+ the_chunk,
&tags,
in->obj_id,
inode_chunk);
- if (foundChunk > 0) {
+ if (found_chunk > 0) {
yaffs_chunk_del(dev,
- foundChunk, 1,
+ found_chunk, 1,
__LINE__);
in->n_data_chunks--;
if (limit) {
*limit = *limit - 1;
if (*limit <= 0)
- hitLimit = 1;
+ hit_limit = 1;
}
}
static void yaffs_soft_del_chunk(yaffs_dev_t *dev, int chunk)
{
- yaffs_block_info_t *theBlock;
+ yaffs_block_info_t *the_block;
unsigned block_no;
T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
block_no = chunk / dev->param.chunks_per_block;
- theBlock = yaffs_get_block_info(dev, block_no);
- if (theBlock) {
- theBlock->soft_del_pages++;
+ the_block = yaffs_get_block_info(dev, block_no);
+ if (the_block) {
+ the_block->soft_del_pages++;
dev->n_free_chunks++;
- yaffs2_update_oldest_dirty_seq(dev, block_no, theBlock);
+ yaffs2_update_oldest_dirty_seq(dev, block_no, the_block);
}
}
__u32 level, int chunk_offset)
{
int i;
- int theChunk;
- int allDone = 1;
+ int the_chunk;
+ int all_done = 1;
yaffs_dev_t *dev = in->my_dev;
if (tn) {
if (level > 0) {
- for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
+ for (i = YAFFS_NTNODES_INTERNAL - 1; all_done && i >= 0;
i--) {
if (tn->internal[i]) {
- allDone =
+ all_done =
yaffs_soft_del_worker(in,
tn->
internal[i],
<<
YAFFS_TNODES_INTERNAL_BITS)
+ i);
- if (allDone) {
+ if (all_done) {
yaffs_free_tnode(dev,
tn->
internal[i]);
}
}
}
- return (allDone) ? 1 : 0;
+ return (all_done) ? 1 : 0;
} else if (level == 0) {
for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
- theChunk = yaffs_get_group_base(dev, tn, i);
- if (theChunk) {
+ the_chunk = yaffs_get_group_base(dev, tn, i);
+ if (the_chunk) {
/* Note this does not find the real chunk, only the chunk group.
* We make an assumption that a chunk group is not larger than
* a block.
*/
- yaffs_soft_del_chunk(dev, theChunk);
+ yaffs_soft_del_chunk(dev, the_chunk);
yaffs_load_tnode_0(dev, tn, i, 0);
}
__u32 level, int del0)
{
int i;
- int hasData;
+ int has_data;
if (tn) {
- hasData = 0;
+ has_data = 0;
if(level > 0){
for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
}
if (tn->internal[i])
- hasData++;
+ has_data++;
}
} else {
int tnode_size_u32 = dev->tnode_size/sizeof(__u32);
__u32 *map = (__u32 *)tn;
- for(i = 0; !hasData && i < tnode_size_u32; i++){
+ for(i = 0; !has_data && i < tnode_size_u32; i++){
if(map[i])
- hasData++;
+ has_data++;
}
}
- if (hasData == 0 && del0) {
+ if (has_data == 0 && del0) {
/* Free and return NULL */
yaffs_free_tnode(dev, tn);
yaffs_file_s *file_struct)
{
int i;
- int hasData;
+ int has_data;
int done = 0;
yaffs_tnode_t *tn;
while (file_struct->top_level && !done) {
tn = file_struct->top;
- hasData = 0;
+ has_data = 0;
for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) {
if (tn->internal[i])
- hasData++;
+ has_data++;
}
- if (!hasData) {
+ if (!has_data) {
file_struct->top = tn->internal[0];
file_struct->top_level--;
yaffs_free_tnode(dev, tn);
}
/* Add it to the lost and found directory.
- * NB Can't put root or lostNFound in lostNFound so
- * check if lostNFound exists first
+ * NB Can't put root or lost-n-found in lost-n-found so
+ * check if lost-n-found exists first
*/
if (dev->lost_n_found)
yaffs_add_obj_to_dir(dev->lost_n_found, obj);
yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number,
yaffs_obj_type type)
{
- yaffs_obj_t *theObject=NULL;
+ yaffs_obj_t *the_obj=NULL;
yaffs_tnode_t *tn = NULL;
if (number < 0)
return NULL;
}
- theObject = yaffs_alloc_empty_obj(dev);
- if (!theObject){
+ the_obj = yaffs_alloc_empty_obj(dev);
+ if (!the_obj){
if(tn)
yaffs_free_tnode(dev,tn);
return NULL;
}
- if (theObject) {
- theObject->fake = 0;
- theObject->rename_allowed = 1;
- theObject->unlink_allowed = 1;
- theObject->obj_id = number;
- yaffs_hash_obj(theObject);
- theObject->variant_type = type;
+ if (the_obj) {
+ the_obj->fake = 0;
+ the_obj->rename_allowed = 1;
+ the_obj->unlink_allowed = 1;
+ the_obj->obj_id = number;
+ yaffs_hash_obj(the_obj);
+ the_obj->variant_type = type;
#ifdef CONFIG_YAFFS_WINCE
- yfsd_win_file_time_now(theObject->win_atime);
- theObject->win_ctime[0] = theObject->win_mtime[0] =
- theObject->win_atime[0];
- theObject->win_ctime[1] = theObject->win_mtime[1] =
- theObject->win_atime[1];
+ yfsd_win_file_time_now(the_obj->win_atime);
+ the_obj->win_ctime[0] = the_obj->win_mtime[0] =
+ the_obj->win_atime[0];
+ the_obj->win_ctime[1] = the_obj->win_mtime[1] =
+ the_obj->win_atime[1];
#else
- theObject->yst_atime = theObject->yst_mtime =
- theObject->yst_ctime = Y_CURRENT_TIME;
+ the_obj->yst_atime = the_obj->yst_mtime =
+ the_obj->yst_ctime = Y_CURRENT_TIME;
#endif
switch (type) {
case YAFFS_OBJECT_TYPE_FILE:
- theObject->variant.file_variant.file_size = 0;
- theObject->variant.file_variant.scanned_size = 0;
- theObject->variant.file_variant.shrink_size = 0xFFFFFFFF; /* max __u32 */
- theObject->variant.file_variant.top_level = 0;
- theObject->variant.file_variant.top = tn;
+ the_obj->variant.file_variant.file_size = 0;
+ the_obj->variant.file_variant.scanned_size = 0;
+ the_obj->variant.file_variant.shrink_size = 0xFFFFFFFF; /* max __u32 */
+ the_obj->variant.file_variant.top_level = 0;
+ the_obj->variant.file_variant.top = tn;
break;
case YAFFS_OBJECT_TYPE_DIRECTORY:
- YINIT_LIST_HEAD(&theObject->variant.dir_variant.
+ YINIT_LIST_HEAD(&the_obj->variant.dir_variant.
children);
- YINIT_LIST_HEAD(&theObject->variant.dir_variant.
+ YINIT_LIST_HEAD(&the_obj->variant.dir_variant.
dirty);
break;
case YAFFS_OBJECT_TYPE_SYMLINK:
}
}
- return theObject;
+ return the_obj;
}
yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev,
int number,
yaffs_obj_type type)
{
- yaffs_obj_t *theObject = NULL;
+ yaffs_obj_t *the_obj = NULL;
if (number > 0)
- theObject = yaffs_find_by_number(dev, number);
+ the_obj = yaffs_find_by_number(dev, number);
- if (!theObject)
- theObject = yaffs_new_obj(dev, number, type);
+ if (!the_obj)
+ the_obj = yaffs_new_obj(dev, number, type);
- return theObject;
+ return the_obj;
}
YCHAR *yaffs_clone_str(const YCHAR *str)
{
- YCHAR *newStr = NULL;
+ YCHAR *new_str = NULL;
int len;
if (!str)
str = _Y("");
len = yaffs_strnlen(str,YAFFS_MAX_ALIAS_LENGTH);
- newStr = YMALLOC((len + 1) * sizeof(YCHAR));
- if (newStr){
- yaffs_strncpy(newStr, str,len);
- newStr[len] = 0;
+ new_str = YMALLOC((len + 1) * sizeof(YCHAR));
+ if (new_str){
+ yaffs_strncpy(new_str, str,len);
+ new_str[len] = 0;
}
- return newStr;
+ return new_str;
}
/*
* Mknod (create) a new object.
* equiv_obj only has meaning for a hard link;
- * aliasString only has meaning for a symlink.
+ * alias_str only has meaning for a symlink.
* rdev only has meaning for devices (a subset of special objects)
*/
__u32 uid,
__u32 gid,
yaffs_obj_t *equiv_obj,
- const YCHAR *aliasString, __u32 rdev)
+ const YCHAR *alias_str, __u32 rdev)
{
yaffs_obj_t *in;
YCHAR *str = NULL;
return NULL;
if (type == YAFFS_OBJECT_TYPE_SYMLINK) {
- str = yaffs_clone_str(aliasString);
+ str = yaffs_clone_str(alias_str);
if (!str)
return NULL;
}
static int yaffs_change_obj_name(yaffs_obj_t *obj, yaffs_obj_t *new_dir,
const YCHAR *new_name, int force, int shadows)
{
- int unlinkOp;
- int deleteOp;
+ int unlink_op;
+ int del_op;
- yaffs_obj_t *existingTarget;
+ yaffs_obj_t *existing_target;
if (new_dir == NULL)
new_dir = obj->parent; /* use the old directory */
/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
if (obj->my_dev->param.is_yaffs2)
- unlinkOp = (new_dir == obj->my_dev->unlinked_dir);
+ unlink_op = (new_dir == obj->my_dev->unlinked_dir);
else
- unlinkOp = (new_dir == obj->my_dev->unlinked_dir
+ unlink_op = (new_dir == obj->my_dev->unlinked_dir
&& obj->variant_type == YAFFS_OBJECT_TYPE_FILE);
- deleteOp = (new_dir == obj->my_dev->del_dir);
+ del_op = (new_dir == obj->my_dev->del_dir);
- existingTarget = yaffs_find_by_name(new_dir, new_name);
+ existing_target = yaffs_find_by_name(new_dir, new_name);
/* If the object is a file going into the unlinked directory,
* then it is OK to just stuff it in since duplicate names are allowed.
* else only proceed if the new name does not exist and if we're putting
* it into a directory.
*/
- if ((unlinkOp ||
- deleteOp ||
+ if ((unlink_op ||
+ del_op ||
force ||
(shadows > 0) ||
- !existingTarget) &&
+ !existing_target) &&
new_dir->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) {
yaffs_set_obj_name(obj, new_name);
obj->dirty = 1;
yaffs_add_obj_to_dir(new_dir, obj);
- if (unlinkOp)
+ if (unlink_op)
obj->unlinked = 1;
/* If it is a deletion then we mark it as a shrink for gc purposes. */
- if (yaffs_update_oh(obj, new_name, 0, deleteOp, shadows, NULL) >= 0)
+ if (yaffs_update_oh(obj, new_name, 0, del_op, shadows, NULL) >= 0)
return YAFFS_OK;
}
yaffs_obj_t *new_dir, const YCHAR *new_name)
{
yaffs_obj_t *obj = NULL;
- yaffs_obj_t *existingTarget = NULL;
+ yaffs_obj_t *existing_target = NULL;
int force = 0;
int result;
yaffs_dev_t *dev;
/* Now do the handling for an existing target, if there is one */
- existingTarget = yaffs_find_by_name(new_dir, new_name);
- if (existingTarget &&
- existingTarget->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
- !ylist_empty(&existingTarget->variant.dir_variant.children)) {
+ existing_target = yaffs_find_by_name(new_dir, new_name);
+ if (existing_target &&
+ existing_target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
+ !ylist_empty(&existing_target->variant.dir_variant.children)) {
/* There is a target that is a non-empty directory, so we fail */
return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */
- } else if (existingTarget && existingTarget != obj) {
+ } else if (existing_target && existing_target != obj) {
/* Nuke the target first, using shadowing,
* but only if it isn't the same object.
*
*/
dev->gc_disable=1;
yaffs_change_obj_name(obj, new_dir, new_name, force,
- existingTarget->obj_id);
- existingTarget->is_shadowed = 1;
- yaffs_unlink_obj(existingTarget);
+ existing_target->obj_id);
+ existing_target->is_shadowed = 1;
+ yaffs_unlink_obj(existing_target);
dev->gc_disable=0;
}
static int yaffs_init_blocks(yaffs_dev_t *dev)
{
- int nBlocks = dev->internal_end_block - dev->internal_start_block + 1;
+ int n_blocks = dev->internal_end_block - dev->internal_start_block + 1;
dev->block_info = NULL;
dev->chunk_bits = NULL;
dev->alloc_block = -1; /* force it to get a new one */
/* If the first allocation strategy fails, thry the alternate one */
- dev->block_info = YMALLOC(nBlocks * sizeof(yaffs_block_info_t));
+ dev->block_info = YMALLOC(n_blocks * sizeof(yaffs_block_info_t));
if (!dev->block_info) {
- dev->block_info = YMALLOC_ALT(nBlocks * sizeof(yaffs_block_info_t));
+ dev->block_info = YMALLOC_ALT(n_blocks * sizeof(yaffs_block_info_t));
dev->block_info_alt = 1;
} else
dev->block_info_alt = 0;
if (dev->block_info) {
/* Set up dynamic blockinfo stuff. */
dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; /* round up bytes */
- dev->chunk_bits = YMALLOC(dev->chunk_bit_stride * nBlocks);
+ dev->chunk_bits = YMALLOC(dev->chunk_bit_stride * n_blocks);
if (!dev->chunk_bits) {
- dev->chunk_bits = YMALLOC_ALT(dev->chunk_bit_stride * nBlocks);
+ dev->chunk_bits = YMALLOC_ALT(dev->chunk_bit_stride * n_blocks);
dev->chunk_bits_alt = 1;
} else
dev->chunk_bits_alt = 0;
}
if (dev->block_info && dev->chunk_bits) {
- memset(dev->block_info, 0, nBlocks * sizeof(yaffs_block_info_t));
- memset(dev->chunk_bits, 0, dev->chunk_bit_stride * nBlocks);
+ memset(dev->block_info, 0, n_blocks * sizeof(yaffs_block_info_t));
+ memset(dev->chunk_bits, 0, dev->chunk_bit_stride * n_blocks);
return YAFFS_OK;
}
{
yaffs_block_info_t *bi = yaffs_get_block_info(dev, block_no);
- int erasedOk = 0;
+ int erased_ok = 0;
/* If the block is still healthy erase it and mark as clean.
* If the block has had a data failure, then retire it.
if (!bi->needs_retiring) {
yaffs2_checkpt_invalidate(dev);
- erasedOk = yaffs_erase_block(dev, block_no);
- if (!erasedOk) {
+ erased_ok = yaffs_erase_block(dev, block_no);
+ if (!erased_ok) {
dev->n_erase_failures++;
T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
(TSTR("**>> Erasure failed %d" TENDSTR), block_no));
}
}
- if (erasedOk &&
+ if (erased_ok &&
((yaffs_trace_mask & YAFFS_TRACE_ERASE) || !yaffs_skip_verification(dev))) {
int i;
for (i = 0; i < dev->param.chunks_per_block; i++) {
}
}
- if (erasedOk) {
+ if (erased_ok) {
/* Clean it up... */
bi->block_state = YAFFS_BLOCK_STATE_EMPTY;
bi->seq_number = 0;
*/
int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks)
{
- int reservedChunks;
- int reservedBlocks = dev->param.n_reserved_blocks;
- int checkpointBlocks;
+ int reserved_chunks;
+ int reserved_blocks = dev->param.n_reserved_blocks;
+ int checkpt_blocks;
- checkpointBlocks = yaffs_calc_checkpt_blocks_required(dev);
+ checkpt_blocks = yaffs_calc_checkpt_blocks_required(dev);
- reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->param.chunks_per_block);
+ reserved_chunks = ((reserved_blocks + checkpt_blocks) * dev->param.chunks_per_block);
- return (dev->n_free_chunks > (reservedChunks + n_chunks));
+ return (dev->n_free_chunks > (reserved_chunks + n_chunks));
}
-static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve,
- yaffs_block_info_t **blockUsedPtr)
+static int yaffs_alloc_chunk(yaffs_dev_t *dev, int use_reserver,
+ yaffs_block_info_t **block_ptr)
{
- int retVal;
+ int ret_val;
yaffs_block_info_t *bi;
if (dev->alloc_block < 0) {
dev->alloc_page = 0;
}
- if (!useReserve && !yaffs_check_alloc_available(dev, 1)) {
+ if (!use_reserver && !yaffs_check_alloc_available(dev, 1)) {
/* Not enough space to allocate unless we're allowed to use the reserve. */
return -1;
}
if (dev->alloc_block >= 0) {
bi = yaffs_get_block_info(dev, dev->alloc_block);
- retVal = (dev->alloc_block * dev->param.chunks_per_block) +
+ ret_val = (dev->alloc_block * dev->param.chunks_per_block) +
dev->alloc_page;
bi->pages_in_use++;
yaffs_set_chunk_bit(dev, dev->alloc_block,
dev->alloc_block = -1;
}
- if (blockUsedPtr)
- *blockUsedPtr = bi;
+ if (block_ptr)
+ *block_ptr = bi;
- return retVal;
+ return ret_val;
}
T(YAFFS_TRACE_ERROR,
static int yaffs_gc_block(yaffs_dev_t *dev, int block,
- int wholeBlock)
+ int whole_block)
{
- int oldChunk;
- int newChunk;
+ int old_chunk;
+ int new_chunk;
int mark_flash;
- int retVal = YAFFS_OK;
+ int ret_val = YAFFS_OK;
int i;
- int isCheckpointBlock;
- int matchingChunk;
- int maxCopies;
+ int is_checkpt_block;
+ int matching_chunk;
+ int max_copies;
- int chunksBefore = yaffs_get_erased_chunks(dev);
- int chunksAfter;
+ int chunks_before = yaffs_get_erased_chunks(dev);
+ int chunks_after;
yaffs_ext_tags tags;
yaffs_obj_t *object;
- isCheckpointBlock = (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT);
+ is_checkpt_block = (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT);
T(YAFFS_TRACE_TRACING,
- (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
+ (TSTR("Collecting block %d, in use %d, shrink %d, whole_block %d" TENDSTR),
block,
bi->pages_in_use,
bi->has_shrink_hdr,
- wholeBlock));
+ whole_block));
/*yaffs_verify_free_chunks(dev); */
dev->gc_disable = 1;
- if (isCheckpointBlock ||
+ if (is_checkpt_block ||
!yaffs_still_some_chunks(dev, block)) {
T(YAFFS_TRACE_TRACING,
(TSTR
yaffs_verify_blk(dev, bi, block);
- maxCopies = (wholeBlock) ? dev->param.chunks_per_block : 5;
- oldChunk = block * dev->param.chunks_per_block + dev->gc_chunk;
+ max_copies = (whole_block) ? dev->param.chunks_per_block : 5;
+ old_chunk = block * dev->param.chunks_per_block + dev->gc_chunk;
for (/* init already done */;
- retVal == YAFFS_OK &&
+ ret_val == YAFFS_OK &&
dev->gc_chunk < dev->param.chunks_per_block &&
(bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) &&
- maxCopies > 0;
- dev->gc_chunk++, oldChunk++) {
+ max_copies > 0;
+ dev->gc_chunk++, old_chunk++) {
if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) {
/* This page is in use and might need to be copied off */
- maxCopies--;
+ max_copies--;
mark_flash = 1;
yaffs_init_tags(&tags);
- yaffs_rd_chunk_tags_nand(dev, oldChunk,
+ yaffs_rd_chunk_tags_nand(dev, old_chunk,
buffer, &tags);
object =
if (object && !yaffs_skip_verification(dev)) {
if (tags.chunk_id == 0)
- matchingChunk = object->hdr_chunk;
+ matching_chunk = object->hdr_chunk;
else if (object->soft_del)
- matchingChunk = oldChunk; /* Defeat the test */
+ matching_chunk = old_chunk; /* Defeat the test */
else
- matchingChunk = yaffs_find_chunk_in_file(object, tags.chunk_id, NULL);
+ matching_chunk = yaffs_find_chunk_in_file(object, tags.chunk_id, NULL);
- if (oldChunk != matchingChunk)
+ if (old_chunk != matching_chunk)
T(YAFFS_TRACE_ERROR,
(TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
- oldChunk, matchingChunk, tags.obj_id, tags.chunk_id));
+ old_chunk, matching_chunk, tags.obj_id, tags.chunk_id));
}
T(YAFFS_TRACE_ERROR,
(TSTR
("page %d in gc has no object: %d %d %d "
- TENDSTR), oldChunk,
+ TENDSTR), old_chunk,
tags.obj_id, tags.chunk_id, tags.n_bytes));
}
/* It is an object Id,
* We need to nuke the shrinkheader flags first
* Also need to clean up shadowing.
- * We no longer want the shrinkHeader flag since its work is done
+ * We no longer want the shrink_header flag since its work is done
* and if it is left in place it will mess up scanning.
*/
}
yaffs_verify_oh(object, oh, &tags, 1);
- newChunk =
+ new_chunk =
yaffs_write_new_chunk(dev,(__u8 *) oh, &tags, 1);
} else
- newChunk =
+ new_chunk =
yaffs_write_new_chunk(dev, buffer, &tags, 1);
- if (newChunk < 0) {
- retVal = YAFFS_FAIL;
+ if (new_chunk < 0) {
+ ret_val = YAFFS_FAIL;
} else {
/* Ok, now fix up the Tnodes etc. */
if (tags.chunk_id == 0) {
/* It's a header */
- object->hdr_chunk = newChunk;
+ object->hdr_chunk = new_chunk;
object->serial = tags.serial_number;
} else {
/* It's a data chunk */
ok = yaffs_put_chunk_in_file
(object,
tags.chunk_id,
- newChunk, 0);
+ new_chunk, 0);
}
}
}
- if (retVal == YAFFS_OK)
- yaffs_chunk_del(dev, oldChunk, mark_flash, __LINE__);
+ if (ret_val == YAFFS_OK)
+ yaffs_chunk_del(dev, old_chunk, mark_flash, __LINE__);
}
}
}
- chunksAfter = yaffs_get_erased_chunks(dev);
- if (chunksBefore >= chunksAfter) {
+ chunks_after = yaffs_get_erased_chunks(dev);
+ if (chunks_before >= chunks_after) {
T(YAFFS_TRACE_GC,
(TSTR
("gc did not increase free chunks before %d after %d"
- TENDSTR), chunksBefore, chunksAfter));
+ TENDSTR), chunks_before, chunks_after));
}
dev->gc_block = 0;
dev->gc_chunk = 0;
dev->gc_disable = 0;
- return retVal;
+ return ret_val;
}
/*
int iterations;
unsigned selected = 0;
int prioritised = 0;
- int prioritisedExists = 0;
+ int prioritised_exist = 0;
yaffs_block_info_t *bi;
int threshold;
i++) {
if (bi->gc_prioritise) {
- prioritisedExists = 1;
+ prioritised_exist = 1;
if (bi->block_state == YAFFS_BLOCK_STATE_FULL &&
yaffs_block_ok_for_gc(dev, bi)) {
selected = i;
* up the works. Let's gc the oldest dirty block.
*/
- if(prioritisedExists &&
+ if(prioritised_exist &&
!selected &&
dev->oldest_dirty_block > 0)
selected = dev->oldest_dirty_block;
- if (!prioritisedExists) /* None found, so we can clear this */
+ if (!prioritised_exist) /* None found, so we can clear this */
dev->has_pending_prioritised_gc = 0;
}
*/
if (!selected){
- int pagesUsed;
- int nBlocks = dev->internal_end_block - dev->internal_start_block + 1;
+ int pages_used;
+ int n_blocks = dev->internal_end_block - dev->internal_start_block + 1;
if (aggressive){
threshold = dev->param.chunks_per_block;
- iterations = nBlocks;
+ iterations = n_blocks;
} else {
- int maxThreshold;
+ int max_threshold;
if(background)
- maxThreshold = dev->param.chunks_per_block/2;
+ max_threshold = dev->param.chunks_per_block/2;
else
- maxThreshold = dev->param.chunks_per_block/8;
+ max_threshold = dev->param.chunks_per_block/8;
- if(maxThreshold < YAFFS_GC_PASSIVE_THRESHOLD)
- maxThreshold = YAFFS_GC_PASSIVE_THRESHOLD;
+ if(max_threshold < YAFFS_GC_PASSIVE_THRESHOLD)
+ max_threshold = YAFFS_GC_PASSIVE_THRESHOLD;
threshold = background ?
(dev->gc_not_done + 2) * 2 : 0;
if(threshold <YAFFS_GC_PASSIVE_THRESHOLD)
threshold = YAFFS_GC_PASSIVE_THRESHOLD;
- if(threshold > maxThreshold)
- threshold = maxThreshold;
+ if(threshold > max_threshold)
+ threshold = max_threshold;
- iterations = nBlocks / 16 + 1;
+ iterations = n_blocks / 16 + 1;
if (iterations > 100)
iterations = 100;
}
bi = yaffs_get_block_info(dev, dev->gc_block_finder);
- pagesUsed = bi->pages_in_use - bi->soft_del_pages;
+ pages_used = bi->pages_in_use - bi->soft_del_pages;
if (bi->block_state == YAFFS_BLOCK_STATE_FULL &&
- pagesUsed < dev->param.chunks_per_block &&
- (dev->gc_dirtiest < 1 || pagesUsed < dev->gc_pages_in_use) &&
+ pages_used < dev->param.chunks_per_block &&
+ (dev->gc_dirtiest < 1 || pages_used < dev->gc_pages_in_use) &&
yaffs_block_ok_for_gc(dev, bi)) {
dev->gc_dirtiest = dev->gc_block_finder;
- dev->gc_pages_in_use = pagesUsed;
+ dev->gc_pages_in_use = pages_used;
}
}
static int yaffs_check_gc(yaffs_dev_t *dev, int background)
{
int aggressive = 0;
- int gcOk = YAFFS_OK;
- int maxTries = 0;
- int minErased;
- int erasedChunks;
- int checkpointBlockAdjust;
+ int gc_ok = YAFFS_OK;
+ int max_tries = 0;
+ int min_erased;
+ int erased_chunks;
+ int checkpt_block_adjust;
if(dev->param.gc_control &&
(dev->param.gc_control(dev) & 1) == 0)
*/
do {
- maxTries++;
+ max_tries++;
- checkpointBlockAdjust = yaffs_calc_checkpt_blocks_required(dev);
+ checkpt_block_adjust = yaffs_calc_checkpt_blocks_required(dev);
- minErased = dev->param.n_reserved_blocks + checkpointBlockAdjust + 1;
- erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
+ min_erased = dev->param.n_reserved_blocks + checkpt_block_adjust + 1;
+ erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block;
/* If we need a block soon then do aggressive gc.*/
- if (dev->n_erased_blocks < minErased)
+ if (dev->n_erased_blocks < min_erased)
aggressive = 1;
else {
- if(!background && erasedChunks > (dev->n_free_chunks / 4))
+ if(!background && erased_chunks > (dev->n_free_chunks / 4))
break;
if(dev->gc_skip > 20)
dev->gc_skip = 20;
- if(erasedChunks < dev->n_free_chunks/2 ||
+ if(erased_chunks < dev->n_free_chunks/2 ||
dev->gc_skip < 1 ||
background)
aggressive = 0;
T(YAFFS_TRACE_GC,
(TSTR
- ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
+ ("yaffs: GC n_erased_blocks %d aggressive %d" TENDSTR),
dev->n_erased_blocks, aggressive));
- gcOk = yaffs_gc_block(dev, dev->gc_block, aggressive);
+ gc_ok = yaffs_gc_block(dev, dev->gc_block, aggressive);
}
if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && dev->gc_block > 0) {
T(YAFFS_TRACE_GC,
(TSTR
- ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
- TENDSTR), dev->n_erased_blocks, maxTries, dev->gc_block));
+ ("yaffs: GC !!!no reclaim!!! n_erased_blocks %d after try %d block %d"
+ TENDSTR), dev->n_erased_blocks, max_tries, dev->gc_block));
}
} while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) &&
(dev->gc_block > 0) &&
- (maxTries < 2));
+ (max_tries < 2));
- return aggressive ? gcOk : YAFFS_OK;
+ return aggressive ? gc_ok : YAFFS_OK;
}
/*
*/
int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency)
{
- int erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
+ int erased_chunks = dev->n_erased_blocks * dev->param.chunks_per_block;
T(YAFFS_TRACE_BACKGROUND, (TSTR("Background gc %u" TENDSTR),urgency));
yaffs_check_gc(dev, 1);
- return erasedChunks > dev->n_free_chunks/2;
+ return erased_chunks > dev->n_free_chunks/2;
}
/*------------------------- TAGS --------------------------------*/
static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id,
- int chunkInObject)
+ int chunk_obj)
{
- return (tags->chunk_id == chunkInObject &&
+ return (tags->chunk_id == chunk_obj &&
tags->obj_id == obj_id && !tags->is_deleted) ? 1 : 0;
}
{
/*Get the Tnode, then get the level 0 offset chunk offset */
yaffs_tnode_t *tn;
- int theChunk = -1;
- yaffs_ext_tags localTags;
- int retVal = -1;
+ int the_chunk = -1;
+ yaffs_ext_tags local_tags;
+ int ret_val = -1;
yaffs_dev_t *dev = in->my_dev;
if (!tags) {
/* Passed a NULL, so use our own tags space */
- tags = &localTags;
+ tags = &local_tags;
}
tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk);
if (tn) {
- theChunk = yaffs_get_group_base(dev, tn, inode_chunk);
+ the_chunk = yaffs_get_group_base(dev, tn, inode_chunk);
- retVal =
- yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id,
+ ret_val =
+ yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id,
inode_chunk);
}
- return retVal;
+ return ret_val;
}
static int yaffs_find_del_file_chunk(yaffs_obj_t *in, int inode_chunk,
{
/* Get the Tnode, then get the level 0 offset chunk offset */
yaffs_tnode_t *tn;
- int theChunk = -1;
- yaffs_ext_tags localTags;
+ int the_chunk = -1;
+ yaffs_ext_tags local_tags;
yaffs_dev_t *dev = in->my_dev;
- int retVal = -1;
+ int ret_val = -1;
if (!tags) {
/* Passed a NULL, so use our own tags space */
- tags = &localTags;
+ tags = &local_tags;
}
tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk);
if (tn) {
- theChunk = yaffs_get_group_base(dev, tn, inode_chunk);
+ the_chunk = yaffs_get_group_base(dev, tn, inode_chunk);
- retVal =
- yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id,
+ ret_val =
+ yaffs_find_chunk_in_group(dev, the_chunk, tags, in->obj_id,
inode_chunk);
/* Delete the entry in the filestructure (if found) */
- if (retVal != -1)
+ if (ret_val != -1)
yaffs_load_tnode_0(dev, tn, inode_chunk, 0);
}
- return retVal;
+ return ret_val;
}
yaffs_tnode_t *tn;
yaffs_dev_t *dev = in->my_dev;
- int existingChunk;
- yaffs_ext_tags existingTags;
- yaffs_ext_tags newTags;
- unsigned existingSerial, newSerial;
+ int existing_cunk;
+ yaffs_ext_tags existing_tags;
+ yaffs_ext_tags new_tags;
+ unsigned existing_serial, new_serial;
if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) {
/* Just ignore an attempt at putting a chunk into a non-file during scanning
/* Dummy insert, bail now */
return YAFFS_OK;
- existingChunk = yaffs_get_group_base(dev, tn, inode_chunk);
+ existing_cunk = yaffs_get_group_base(dev, tn, inode_chunk);
if (in_scan != 0) {
/* If we're scanning then we need to test for duplicates
* Update: For backward scanning we don't need to re-read tags so this is quite cheap.
*/
- if (existingChunk > 0) {
+ if (existing_cunk > 0) {
/* NB Right now existing chunk will not be real chunk_id if the chunk group size > 1
* thus we have to do a FindChunkInFile to get the real chunk id.
*
/* Only do this for forward scanning */
yaffs_rd_chunk_tags_nand(dev,
nand_chunk,
- NULL, &newTags);
+ NULL, &new_tags);
/* Do a proper find */
- existingChunk =
+ existing_cunk =
yaffs_find_chunk_in_file(in, inode_chunk,
- &existingTags);
+ &existing_tags);
}
- if (existingChunk <= 0) {
+ if (existing_cunk <= 0) {
/*Hoosterman - how did this happen? */
T(YAFFS_TRACE_ERROR,
*/
if (in_scan > 0) {
- newSerial = newTags.serial_number;
- existingSerial = existingTags.serial_number;
+ new_serial = new_tags.serial_number;
+ existing_serial = existing_tags.serial_number;
}
if ((in_scan > 0) &&
- (existingChunk <= 0 ||
- ((existingSerial + 1) & 3) == newSerial)) {
+ (existing_cunk <= 0 ||
+ ((existing_serial + 1) & 3) == new_serial)) {
/* Forward scanning.
* Use new
* Delete the old one and drop through to update the tnode
*/
- yaffs_chunk_del(dev, existingChunk, 1,
+ yaffs_chunk_del(dev, existing_cunk, 1,
__LINE__);
} else {
/* Backward scanning or we want to use the existing one
}
- if (existingChunk == 0)
+ if (existing_cunk == 0)
in->n_data_chunks++;
yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk);
static int yaffs_wr_data_obj(yaffs_obj_t *in, int inode_chunk,
const __u8 *buffer, int n_bytes,
- int useReserve)
+ int use_reserve)
{
/* Find old chunk Need to do this to get serial number
* Write new one and patch into tree.
* Invalidate old tags.
*/
- int prevChunkId;
- yaffs_ext_tags prevTags;
+ int prev_chunk_id;
+ yaffs_ext_tags prev_tags;
- int newChunkId;
- yaffs_ext_tags newTags;
+ int new_chunk_id;
+ yaffs_ext_tags new_tags;
yaffs_dev_t *dev = in->my_dev;
* If it does not exist then put a zero into the tree. This creates
* the tnode now, rather than later when it is harder to clean up.
*/
- prevChunkId = yaffs_find_chunk_in_file(in, inode_chunk, &prevTags);
- if(prevChunkId < 1 &&
+ prev_chunk_id = yaffs_find_chunk_in_file(in, inode_chunk, &prev_tags);
+ if(prev_chunk_id < 1 &&
!yaffs_put_chunk_in_file(in, inode_chunk, 0, 0))
return 0;
/* Set up new tags */
- yaffs_init_tags(&newTags);
+ yaffs_init_tags(&new_tags);
- newTags.chunk_id = inode_chunk;
- newTags.obj_id = in->obj_id;
- newTags.serial_number =
- (prevChunkId > 0) ? prevTags.serial_number + 1 : 1;
- newTags.n_bytes = n_bytes;
+ new_tags.chunk_id = inode_chunk;
+ new_tags.obj_id = in->obj_id;
+ new_tags.serial_number =
+ (prev_chunk_id > 0) ? prev_tags.serial_number + 1 : 1;
+ new_tags.n_bytes = n_bytes;
if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) {
T(YAFFS_TRACE_ERROR,
}
- newChunkId =
- yaffs_write_new_chunk(dev, buffer, &newTags,
- useReserve);
+ new_chunk_id =
+ yaffs_write_new_chunk(dev, buffer, &new_tags,
+ use_reserve);
- if (newChunkId > 0) {
- yaffs_put_chunk_in_file(in, inode_chunk, newChunkId, 0);
+ if (new_chunk_id > 0) {
+ yaffs_put_chunk_in_file(in, inode_chunk, new_chunk_id, 0);
- if (prevChunkId > 0)
- yaffs_chunk_del(dev, prevChunkId, 1, __LINE__);
+ if (prev_chunk_id > 0)
+ yaffs_chunk_del(dev, prev_chunk_id, 1, __LINE__);
yaffs_verify_file_sane(in);
}
- return newChunkId;
+ return new_chunk_id;
}
yaffs_dev_t *dev = in->my_dev;
- int prevChunkId;
- int retVal = 0;
+ int prev_chunk_id;
+ int ret_val = 0;
int result = 0;
- int newChunkId;
- yaffs_ext_tags newTags;
- yaffs_ext_tags oldTags;
+ int new_chunk_id;
+ yaffs_ext_tags new_tags;
+ yaffs_ext_tags old_tags;
const YCHAR *alias = NULL;
__u8 *buffer = NULL;
buffer = yaffs_get_temp_buffer(in->my_dev, __LINE__);
oh = (yaffs_obj_header *) buffer;
- prevChunkId = in->hdr_chunk;
+ prev_chunk_id = in->hdr_chunk;
- if (prevChunkId > 0) {
- result = yaffs_rd_chunk_tags_nand(dev, prevChunkId,
- buffer, &oldTags);
+ if (prev_chunk_id > 0) {
+ result = yaffs_rd_chunk_tags_nand(dev, prev_chunk_id,
+ buffer, &old_tags);
- yaffs_verify_oh(in, oh, &oldTags, 0);
+ yaffs_verify_oh(in, oh, &old_tags, 0);
memcpy(old_name, oh->name, sizeof(oh->name));
memset(buffer, 0xFF, sizeof(yaffs_obj_header));
if (name && *name) {
memset(oh->name, 0, sizeof(oh->name));
yaffs_load_oh_from_name(dev,oh->name,name);
- } else if (prevChunkId > 0)
+ } else if (prev_chunk_id > 0)
memcpy(oh->name, old_name, sizeof(oh->name));
else
memset(oh->name, 0, sizeof(oh->name));
/* Tags */
- yaffs_init_tags(&newTags);
+ yaffs_init_tags(&new_tags);
in->serial++;
- newTags.chunk_id = 0;
- newTags.obj_id = in->obj_id;
- newTags.serial_number = in->serial;
+ new_tags.chunk_id = 0;
+ new_tags.obj_id = in->obj_id;
+ new_tags.serial_number = in->serial;
/* Add extra info for file header */
- newTags.extra_available = 1;
- newTags.extra_parent_id = oh->parent_obj_id;
- newTags.extra_length = oh->file_size;
- newTags.extra_is_shrink = oh->is_shrink;
- newTags.extra_equiv_id = oh->equiv_id;
- newTags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0;
- newTags.extra_obj_type = in->variant_type;
+ new_tags.extra_available = 1;
+ new_tags.extra_parent_id = oh->parent_obj_id;
+ new_tags.extra_length = oh->file_size;
+ new_tags.extra_is_shrink = oh->is_shrink;
+ new_tags.extra_equiv_id = oh->equiv_id;
+ new_tags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0;
+ new_tags.extra_obj_type = in->variant_type;
- yaffs_verify_oh(in, oh, &newTags, 1);
+ yaffs_verify_oh(in, oh, &new_tags, 1);
/* Create new chunk in NAND */
- newChunkId =
- yaffs_write_new_chunk(dev, buffer, &newTags,
- (prevChunkId > 0) ? 1 : 0);
+ new_chunk_id =
+ yaffs_write_new_chunk(dev, buffer, &new_tags,
+ (prev_chunk_id > 0) ? 1 : 0);
- if (newChunkId >= 0) {
+ if (new_chunk_id >= 0) {
- in->hdr_chunk = newChunkId;
+ in->hdr_chunk = new_chunk_id;
- if (prevChunkId > 0) {
- yaffs_chunk_del(dev, prevChunkId, 1,
+ if (prev_chunk_id > 0) {
+ yaffs_chunk_del(dev, prev_chunk_id, 1,
__LINE__);
}
/* If this was a shrink, then mark the block that the chunk lives on */
if (is_shrink) {
bi = yaffs_get_block_info(in->my_dev,
- newChunkId / in->my_dev->param.chunks_per_block);
+ new_chunk_id / in->my_dev->param.chunks_per_block);
bi->has_shrink_hdr = 1;
}
}
- retVal = newChunkId;
+ ret_val = new_chunk_id;
}
if (buffer)
yaffs_release_temp_buffer(dev, buffer, __LINE__);
- return retVal;
+ return ret_val;
}
/*------------------------ Short Operations Cache ----------------------------------------
yaffs_dev_t *dev = obj->my_dev;
int i;
yaffs_cache_t *cache;
- int nCaches = obj->my_dev->param.n_caches;
+ int n_caches = obj->my_dev->param.n_caches;
- for (i = 0; i < nCaches; i++) {
+ for (i = 0; i < n_caches; i++) {
cache = &dev->cache[i];
if (cache->object == obj &&
cache->dirty)
int lowest = -99; /* Stop compiler whining. */
int i;
yaffs_cache_t *cache;
- int chunkWritten = 0;
- int nCaches = obj->my_dev->param.n_caches;
+ int chunk_written = 0;
+ int n_caches = obj->my_dev->param.n_caches;
- if (nCaches > 0) {
+ if (n_caches > 0) {
do {
cache = NULL;
/* Find the dirty cache for this object with the lowest chunk id. */
- for (i = 0; i < nCaches; i++) {
+ for (i = 0; i < n_caches; i++) {
if (dev->cache[i].object == obj &&
dev->cache[i].dirty) {
if (!cache
if (cache && !cache->locked) {
/* Write it out and free it up */
- chunkWritten =
+ chunk_written =
yaffs_wr_data_obj(cache->object,
cache->chunk_id,
cache->data,
cache->object = NULL;
}
- } while (cache && chunkWritten > 0);
+ } while (cache && chunk_written > 0);
if (cache) {
/* Hoosterman, disk full while writing cache out. */
void yaffs_flush_whole_cache(yaffs_dev_t *dev)
{
yaffs_obj_t *obj;
- int nCaches = dev->param.n_caches;
+ int n_caches = dev->param.n_caches;
int i;
/* Find a dirty object in the cache and flush it...
*/
do {
obj = NULL;
- for (i = 0; i < nCaches && !obj; i++) {
+ for (i = 0; i < n_caches && !obj; i++) {
if (dev->cache[i].object &&
dev->cache[i].dirty)
obj = dev->cache[i].object;
static yaffs_cache_t *yaffs_grab_chunk_cache(yaffs_dev_t *dev)
{
yaffs_cache_t *cache;
- yaffs_obj_t *theObj;
+ yaffs_obj_t *the_obj;
int usage;
int i;
int pushout;
/* With locking we can't assume we can use entry zero */
- theObj = NULL;
+ the_obj = NULL;
usage = -1;
cache = NULL;
pushout = -1;
!dev->cache[i].locked &&
(dev->cache[i].last_use < usage || !cache)) {
usage = dev->cache[i].last_use;
- theObj = dev->cache[i].object;
+ the_obj = dev->cache[i].object;
cache = &dev->cache[i];
pushout = i;
}
if (!cache || cache->dirty) {
/* Flush and try again */
- yaffs_flush_file_cache(theObj);
+ yaffs_flush_file_cache(the_obj);
cache = yaffs_grab_chunk_worker(dev);
}
/* Mark the chunk for the least recently used algorithym */
static void yaffs_use_cache(yaffs_dev_t *dev, yaffs_cache_t *cache,
- int isAWrite)
+ int is_write)
{
if (dev->param.n_caches > 0) {
cache->last_use = dev->cache_last_use;
- if (isAWrite)
+ if (is_write)
cache->dirty = 1;
}
}
int chunk;
__u32 start;
- int nToCopy;
+ int n_copy;
int n = n_bytes;
- int nDone = 0;
+ int n_done = 0;
yaffs_cache_t *cache;
yaffs_dev_t *dev;
* the same chunk.
*/
if ((start + n) < dev->data_bytes_per_chunk)
- nToCopy = n;
+ n_copy = n;
else
- nToCopy = dev->data_bytes_per_chunk - start;
+ n_copy = dev->data_bytes_per_chunk - start;
cache = yaffs_find_chunk_cache(in, chunk);
* or we're using inband tags then use the cache (if there is caching)
* else bypass the cache.
*/
- if (cache || nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) {
+ if (cache || n_copy != dev->data_bytes_per_chunk || dev->param.inband_tags) {
if (dev->param.n_caches > 0) {
/* If we can't find the data in the cache, then load it up. */
cache->locked = 1;
- memcpy(buffer, &cache->data[start], nToCopy);
+ memcpy(buffer, &cache->data[start], n_copy);
cache->locked = 0;
} else {
/* Read into the local buffer then copy..*/
- __u8 *localBuffer =
+ __u8 *local_buffer =
yaffs_get_temp_buffer(dev, __LINE__);
yaffs_rd_data_obj(in, chunk,
- localBuffer);
+ local_buffer);
- memcpy(buffer, &localBuffer[start], nToCopy);
+ memcpy(buffer, &local_buffer[start], n_copy);
- yaffs_release_temp_buffer(dev, localBuffer,
+ yaffs_release_temp_buffer(dev, local_buffer,
__LINE__);
}
}
- n -= nToCopy;
- offset += nToCopy;
- buffer += nToCopy;
- nDone += nToCopy;
+ n -= n_copy;
+ offset += n_copy;
+ buffer += n_copy;
+ n_done += n_copy;
}
- return nDone;
+ return n_done;
}
int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset,
int chunk;
__u32 start;
- int nToCopy;
+ int n_copy;
int n = n_bytes;
- int nDone = 0;
- int nToWriteBack;
- int startOfWrite = offset;
- int chunkWritten = 0;
- __u32 n_bytesRead;
- __u32 chunkStart;
+ int n_done = 0;
+ int n_writeback;
+ int start_write = offset;
+ int chunk_written = 0;
+ __u32 n_bytes_read;
+ __u32 chunk_start;
yaffs_dev_t *dev;
dev = in->my_dev;
- while (n > 0 && chunkWritten >= 0) {
+ while (n > 0 && chunk_written >= 0) {
yaffs_addr_to_chunk(dev, offset, &chunk, &start);
if (chunk * dev->data_bytes_per_chunk + start != offset ||
*/
if ((start + n) < dev->data_bytes_per_chunk) {
- nToCopy = n;
+ n_copy = n;
/* Now folks, to calculate how many bytes to write back....
* If we're overwriting and not writing to then end of file then
* we need to write back as much as was there before.
*/
- chunkStart = ((chunk - 1) * dev->data_bytes_per_chunk);
+ chunk_start = ((chunk - 1) * dev->data_bytes_per_chunk);
- if (chunkStart > in->variant.file_variant.file_size)
- n_bytesRead = 0; /* Past end of file */
+ if (chunk_start > in->variant.file_variant.file_size)
+ n_bytes_read = 0; /* Past end of file */
else
- n_bytesRead = in->variant.file_variant.file_size - chunkStart;
+ n_bytes_read = in->variant.file_variant.file_size - chunk_start;
- if (n_bytesRead > dev->data_bytes_per_chunk)
- n_bytesRead = dev->data_bytes_per_chunk;
+ if (n_bytes_read > dev->data_bytes_per_chunk)
+ n_bytes_read = dev->data_bytes_per_chunk;
- nToWriteBack =
- (n_bytesRead >
- (start + n)) ? n_bytesRead : (start + n);
+ n_writeback =
+ (n_bytes_read >
+ (start + n)) ? n_bytes_read : (start + n);
- if (nToWriteBack < 0 || nToWriteBack > dev->data_bytes_per_chunk)
+ if (n_writeback < 0 || n_writeback > dev->data_bytes_per_chunk)
YBUG();
} else {
- nToCopy = dev->data_bytes_per_chunk - start;
- nToWriteBack = dev->data_bytes_per_chunk;
+ n_copy = dev->data_bytes_per_chunk - start;
+ n_writeback = dev->data_bytes_per_chunk;
}
- if (nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) {
+ if (n_copy != dev->data_bytes_per_chunk || dev->param.inband_tags) {
/* An incomplete start or end chunk (or maybe both start and end chunk),
* or we're using inband tags, so we want to use the cache buffers.
*/
memcpy(&cache->data[start], buffer,
- nToCopy);
+ n_copy);
cache->locked = 0;
- cache->n_bytes = nToWriteBack;
+ cache->n_bytes = n_writeback;
if (write_trhrough) {
- chunkWritten =
+ chunk_written =
yaffs_wr_data_obj
(cache->object,
cache->chunk_id,
}
} else {
- chunkWritten = -1; /* fail the write */
+ chunk_written = -1; /* fail the write */
}
} else {
/* An incomplete start or end chunk (or maybe both start and end chunk)
* Read into the local buffer then copy, then copy over and write back.
*/
- __u8 *localBuffer =
+ __u8 *local_buffer =
yaffs_get_temp_buffer(dev, __LINE__);
yaffs_rd_data_obj(in, chunk,
- localBuffer);
+ local_buffer);
- memcpy(&localBuffer[start], buffer, nToCopy);
+ memcpy(&local_buffer[start], buffer, n_copy);
- chunkWritten =
+ chunk_written =
yaffs_wr_data_obj(in, chunk,
- localBuffer,
- nToWriteBack,
+ local_buffer,
+ n_writeback,
0);
- yaffs_release_temp_buffer(dev, localBuffer,
+ yaffs_release_temp_buffer(dev, local_buffer,
__LINE__);
}
- chunkWritten =
+ chunk_written =
yaffs_wr_data_obj(in, chunk, buffer,
dev->data_bytes_per_chunk,
0);
yaffs_invalidate_chunk_cache(in, chunk);
}
- if (chunkWritten >= 0) {
- n -= nToCopy;
- offset += nToCopy;
- buffer += nToCopy;
- nDone += nToCopy;
+ if (chunk_written >= 0) {
+ n -= n_copy;
+ offset += n_copy;
+ buffer += n_copy;
+ n_done += n_copy;
}
}
/* Update file object */
- if ((startOfWrite + nDone) > in->variant.file_variant.file_size)
- in->variant.file_variant.file_size = (startOfWrite + nDone);
+ if ((start_write + n_done) > in->variant.file_variant.file_size)
+ in->variant.file_variant.file_size = (start_write + n_done);
in->dirty = 1;
- return nDone;
+ return n_done;
}
int yaffs_wr_file(yaffs_obj_t *in, const __u8 *buffer, loff_t offset,
{
yaffs_dev_t *dev = in->my_dev;
- int oldFileSize = in->variant.file_variant.file_size;
+ int old_size = in->variant.file_variant.file_size;
- int lastDel = 1 + (oldFileSize - 1) / dev->data_bytes_per_chunk;
+ int last_del = 1 + (old_size - 1) / dev->data_bytes_per_chunk;
- int startDel = 1 + (new_size + dev->data_bytes_per_chunk - 1) /
+ int start_del = 1 + (new_size + dev->data_bytes_per_chunk - 1) /
dev->data_bytes_per_chunk;
int i;
int chunk_id;
/* Delete backwards so that we don't end up with holes if
* power is lost part-way through the operation.
*/
- for (i = lastDel; i >= startDel; i--) {
+ for (i = last_del; i >= start_del; i--) {
/* NB this could be optimised somewhat,
* eg. could retrieve the tags and write them without
* using yaffs_chunk_del
void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size)
{
- int newFullChunks;
- __u32 new_sizeOfPartialChunk;
+ int new_full;
+ __u32 new_partial;
yaffs_dev_t *dev = obj->my_dev;
- yaffs_addr_to_chunk(dev, new_size, &newFullChunks, &new_sizeOfPartialChunk);
+ yaffs_addr_to_chunk(dev, new_size, &new_full, &new_partial);
yaffs_prune_chunks(obj, new_size);
- if (new_sizeOfPartialChunk != 0) {
- int lastChunk = 1 + newFullChunks;
- __u8 *localBuffer = yaffs_get_temp_buffer(dev, __LINE__);
+ if (new_partial != 0) {
+ int last_chunk = 1 + new_full;
+ __u8 *local_buffer = yaffs_get_temp_buffer(dev, __LINE__);
/* Got to read and rewrite the last chunk with its new size and zero pad */
- yaffs_rd_data_obj(obj, lastChunk, localBuffer);
- memset(localBuffer + new_sizeOfPartialChunk, 0,
- dev->data_bytes_per_chunk - new_sizeOfPartialChunk);
+ yaffs_rd_data_obj(obj, last_chunk, local_buffer);
+ memset(local_buffer + new_partial, 0,
+ dev->data_bytes_per_chunk - new_partial);
- yaffs_wr_data_obj(obj, lastChunk, localBuffer,
- new_sizeOfPartialChunk, 1);
+ yaffs_wr_data_obj(obj, last_chunk, local_buffer,
+ new_partial, 1);
- yaffs_release_temp_buffer(dev, localBuffer, __LINE__);
+ yaffs_release_temp_buffer(dev, local_buffer, __LINE__);
}
obj->variant.file_variant.file_size = new_size;
int yaffs_resize_file(yaffs_obj_t *in, loff_t new_size)
{
yaffs_dev_t *dev = in->my_dev;
- int oldFileSize = in->variant.file_variant.file_size;
+ int old_size = in->variant.file_variant.file_size;
yaffs_flush_file_cache(in);
yaffs_invalidate_whole_cache(in);
if (in->variant_type != YAFFS_OBJECT_TYPE_FILE)
return YAFFS_FAIL;
- if (new_size == oldFileSize)
+ if (new_size == old_size)
return YAFFS_OK;
- if(new_size > oldFileSize){
+ if(new_size > old_size){
yaffs2_handle_hole(in,new_size);
in->variant.file_variant.file_size = new_size;
} else {
- /* new_size < oldFileSize */
+ /* new_size < old_size */
yaffs_resize_file_down(in, new_size);
}
int yaffs_flush_file(yaffs_obj_t *in, int update_time, int data_sync)
{
- int retVal;
+ int ret_val;
if (in->dirty) {
yaffs_flush_file_cache(in);
if(data_sync) /* Only sync data */
- retVal=YAFFS_OK;
+ ret_val=YAFFS_OK;
else {
if (update_time) {
#ifdef CONFIG_YAFFS_WINCE
#endif
}
- retVal = (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >=
+ ret_val = (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >=
0) ? YAFFS_OK : YAFFS_FAIL;
}
} else {
- retVal = YAFFS_OK;
+ ret_val = YAFFS_OK;
}
- return retVal;
+ return ret_val;
}
static int yaffs_unlink_file_if_needed(yaffs_obj_t *in)
{
- int retVal;
- int immediateDeletion = 0;
+ int ret_val;
+ int del_now = 0;
yaffs_dev_t *dev = in->my_dev;
if (!in->my_inode)
- immediateDeletion = 1;
+ del_now = 1;
- if (immediateDeletion) {
- retVal =
+ if (del_now) {
+ ret_val =
yaffs_change_obj_name(in, in->my_dev->del_dir,
_Y("deleted"), 0, 0);
T(YAFFS_TRACE_TRACING,
yaffs_resize_file(in, 0);
yaffs_soft_del_file(in);
} else {
- retVal =
+ ret_val =
yaffs_change_obj_name(in, in->my_dev->unlinked_dir,
_Y("unlinked"), 0, 0);
}
- return retVal;
+ return ret_val;
}
int yaffs_del_file(yaffs_obj_t *in)
{
- int retVal = YAFFS_OK;
+ int ret_val = YAFFS_OK;
int deleted; /* Need to cache value on stack if in is freed */
yaffs_dev_t *dev = in->my_dev;
* That won't be the case if it has been resized to zero.
*/
if (!in->unlinked)
- retVal = yaffs_unlink_file_if_needed(in);
+ ret_val = yaffs_unlink_file_if_needed(in);
deleted = in->deleted;
- if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
+ if (ret_val == YAFFS_OK && in->unlinked && !in->deleted) {
in->deleted = 1;
deleted = 1;
in->my_dev->n_deleted_files++;
int yaffs_del_obj(yaffs_obj_t *obj)
{
-int retVal = -1;
+int ret_val = -1;
switch (obj->variant_type) {
case YAFFS_OBJECT_TYPE_FILE:
- retVal = yaffs_del_file(obj);
+ ret_val = yaffs_del_file(obj);
break;
case YAFFS_OBJECT_TYPE_DIRECTORY:
if(!ylist_empty(&obj->variant.dir_variant.dirty)){
return yaffs_del_dir(obj);
break;
case YAFFS_OBJECT_TYPE_SYMLINK:
- retVal = yaffs_del_symlink(obj);
+ ret_val = yaffs_del_symlink(obj);
break;
case YAFFS_OBJECT_TYPE_HARDLINK:
- retVal = yaffs_del_link(obj);
+ ret_val = yaffs_del_link(obj);
break;
case YAFFS_OBJECT_TYPE_SPECIAL:
- retVal = yaffs_generic_obj_del(obj);
+ ret_val = yaffs_generic_obj_del(obj);
break;
case YAFFS_OBJECT_TYPE_UNKNOWN:
- retVal = 0;
+ ret_val = 0;
break; /* should not happen. */
}
- return retVal;
+ return ret_val;
}
static int yaffs_unlink_worker(yaffs_obj_t *obj)
{
- int immediateDeletion = 0;
+ int del_now = 0;
if (!obj->my_inode)
- immediateDeletion = 1;
+ del_now = 1;
if(obj)
yaffs_update_parent(obj->parent);
yaffs_obj_t *hl;
yaffs_obj_t *parent;
- int retVal;
+ int ret_val;
YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
hl = ylist_entry(obj->hard_links.next, yaffs_obj_t, hard_links);
yaffs_add_obj_to_dir(obj->my_dev->unlinked_dir, hl);
- retVal = yaffs_change_obj_name(obj,parent, name, 0, 0);
+ ret_val = yaffs_change_obj_name(obj,parent, name, 0, 0);
- if (retVal == YAFFS_OK)
- retVal = yaffs_generic_obj_del(hl);
+ if (ret_val == YAFFS_OK)
+ ret_val = yaffs_generic_obj_del(hl);
- return retVal;
+ return ret_val;
- } else if (immediateDeletion) {
+ } else if (del_now) {
switch (obj->variant_type) {
case YAFFS_OBJECT_TYPE_FILE:
return yaffs_del_file(obj);
* This code assumes that we don't ever change the current relationships between
* directories:
* root_dir->parent == unlinked_dir->parent == del_dir->parent == NULL
- * lostNfound->parent == root_dir
+ * lost-n-found->parent == root_dir
*
* This fixes the problem where directories might have inadvertently been deleted
* leaving the object "hanging" without being rooted in the directory tree.
int i;
struct ylist_head *lh;
struct ylist_head *n;
- int depthLimit;
+ int depth_limit;
int hanging;
if (dev->read_only)
* Need to follow the parent chain to see if it is hanging.
*/
hanging = 0;
- depthLimit=100;
+ depth_limit=100;
while(parent != dev->root_dir &&
parent->parent &&
parent->parent->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
- depthLimit > 0){
+ depth_limit > 0){
parent = parent->parent;
- depthLimit--;
+ depth_limit--;
}
if(parent != dev->root_dir)
hanging = 1;
static void yaffs_check_obj_details_loaded(yaffs_obj_t *in)
{
- __u8 *chunkData;
+ __u8 *chunk_data;
yaffs_obj_header *oh;
yaffs_dev_t *dev;
yaffs_ext_tags tags;
if (in->lazy_loaded && in->hdr_chunk > 0) {
in->lazy_loaded = 0;
- chunkData = yaffs_get_temp_buffer(dev, __LINE__);
+ chunk_data = yaffs_get_temp_buffer(dev, __LINE__);
- result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, chunkData, &tags);
- oh = (yaffs_obj_header *) chunkData;
+ result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, chunk_data, &tags);
+ oh = (yaffs_obj_header *) chunk_data;
in->yst_mode = oh->yst_mode;
#ifdef CONFIG_YAFFS_WINCE
alloc_failed = 1; /* Not returned to caller */
}
- yaffs_release_temp_buffer(dev, chunkData, __LINE__);
+ yaffs_release_temp_buffer(dev, chunk_data, __LINE__);
}
}
{
struct ylist_head *link;
yaffs_obj_t *obj;
- yaffs_dir_s *dS;
- yaffs_obj_variant *oV;
+ yaffs_dir_s *d_s;
+ yaffs_obj_variant *o_v;
T(YAFFS_TRACE_BACKGROUND, (TSTR("Update dirty directories" TENDSTR)));
link = dev->dirty_dirs.next;
ylist_del_init(link);
- dS=ylist_entry(link,yaffs_dir_s,dirty);
- oV = ylist_entry(dS,yaffs_obj_variant,dir_variant);
- obj = ylist_entry(oV,yaffs_obj_t,variant);
+ d_s=ylist_entry(link,yaffs_dir_s,dirty);
+ o_v = ylist_entry(d_s,yaffs_obj_variant,dir_variant);
+ obj = ylist_entry(o_v,yaffs_obj_t,variant);
T(YAFFS_TRACE_BACKGROUND, (TSTR("Update directory %d" TENDSTR), obj->obj_id));
{
/* Create an object name if we could not find one. */
if(yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH) == 0){
- YCHAR locName[20];
- YCHAR numString[20];
- YCHAR *x = &numString[19];
+ YCHAR local_name[20];
+ YCHAR num_string[20];
+ YCHAR *x = &num_string[19];
unsigned v = obj->obj_id;
- numString[19] = 0;
+ num_string[19] = 0;
while(v>0){
x--;
*x = '0' + (v % 10);
v /= 10;
}
/* make up a name */
- yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX);
- yaffs_strcat(locName,x);
- yaffs_strncpy(name, locName, buffer_size - 1);
+ yaffs_strcpy(local_name, YAFFS_LOSTNFOUND_PREFIX);
+ yaffs_strcat(local_name,x);
+ yaffs_strncpy(name, local_name, buffer_size - 1);
}
}
-static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize)
+static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *oh_name, int buff_size)
{
#ifdef CONFIG_YAFFS_AUTO_UNICODE
if(dev->param.auto_unicode){
- if(*ohName){
+ if(*oh_name){
/* It is an ASCII name, so do an ASCII to unicode conversion */
- const char *asciiOhName = (const char *)ohName;
- int n = bufferSize - 1;
- while(n > 0 && *asciiOhName){
- *name = *asciiOhName;
+ const char *ascii_oh_name = (const char *)oh_name;
+ int n = buff_size - 1;
+ while(n > 0 && *ascii_oh_name){
+ *name = *ascii_oh_name;
name++;
- asciiOhName++;
+ ascii_oh_name++;
n--;
}
} else
- yaffs_strncpy(name,ohName+1, bufferSize -1);
+ yaffs_strncpy(name,oh_name+1, buff_size -1);
} else
#endif
- yaffs_strncpy(name, ohName, bufferSize - 1);
+ yaffs_strncpy(name, oh_name, buff_size - 1);
}
-static void yaffs_load_oh_from_name(yaffs_dev_t *dev, YCHAR *ohName, const YCHAR *name)
+static void yaffs_load_oh_from_name(yaffs_dev_t *dev, YCHAR *oh_name, const YCHAR *name)
{
#ifdef CONFIG_YAFFS_AUTO_UNICODE
- int isAscii;
+ int is_ascii;
YCHAR *w;
if(dev->param.auto_unicode){
- isAscii = 1;
+ is_ascii = 1;
w = name;
/* Figure out if the name will fit in ascii character set */
- while(isAscii && *w){
+ while(is_ascii && *w){
if((*w) & 0xff00)
- isAscii = 0;
+ is_ascii = 0;
w++;
}
- if(isAscii){
+ if(is_ascii){
/* It is an ASCII name, so do a unicode to ascii conversion */
- char *asciiOhName = (char *)ohName;
+ char *ascii_oh_name = (char *)oh_name;
int n = YAFFS_MAX_NAME_LENGTH - 1;
while(n > 0 && *name){
- *asciiOhName= *name;
+ *ascii_oh_name= *name;
name++;
- asciiOhName++;
+ ascii_oh_name++;
n--;
}
} else{
/* It is a unicode name, so save starting at the second YCHAR */
- *ohName = 0;
- yaffs_strncpy(ohName+1,name, YAFFS_MAX_NAME_LENGTH -2);
+ *oh_name = 0;
+ yaffs_strncpy(oh_name+1,name, YAFFS_MAX_NAME_LENGTH -2);
}
}
else
#endif
- yaffs_strncpy(ohName,name, YAFFS_MAX_NAME_LENGTH - 1);
+ yaffs_strncpy(oh_name,name, YAFFS_MAX_NAME_LENGTH - 1);
}
/* Sort out space for inband tags, if required */
if (dev->param.inband_tags)
- dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk - sizeof(yaffs_PackedTags2TagsPart);
+ dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk - sizeof(yaffs_packed_tags2_tags_only);
else
dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk;
*/
x = dev->data_bytes_per_chunk;
/* We always use dev->chunk_shift and dev->chunk_div */
- dev->chunk_shift = Shifts(x);
+ dev->chunk_shift = calc_shifts(x);
x >>= dev->chunk_shift;
dev->chunk_div = x;
/* We only use chunk mask if chunk_div is 1 */
x = dev->param.chunks_per_block * (dev->internal_end_block + 1);
- bits = ShiftsGE(x);
+ bits = calc_shifts_ceiling(x);
/* Set up tnode width if wide tnodes are enabled. */
if (!dev->param.wide_tnodes_disabled) {
dev->param.n_caches > 0) {
int i;
void *buf;
- int cacheBytes = dev->param.n_caches * sizeof(yaffs_cache_t);
+ int cache_bytes = dev->param.n_caches * sizeof(yaffs_cache_t);
if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES)
dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES;
- dev->cache = YMALLOC(cacheBytes);
+ dev->cache = YMALLOC(cache_bytes);
buf = (__u8 *) dev->cache;
if (dev->cache)
- memset(dev->cache, 0, cacheBytes);
+ memset(dev->cache, 0, cache_bytes);
for (i = 0; i < dev->param.n_caches && buf; i++) {
dev->cache[i].object = NULL;
int yaffs_count_free_chunks(yaffs_dev_t *dev)
{
- int nFree=0;
+ int n_free=0;
int b;
yaffs_block_info_t *blk;
case YAFFS_BLOCK_STATE_ALLOCATING:
case YAFFS_BLOCK_STATE_COLLECTING:
case YAFFS_BLOCK_STATE_FULL:
- nFree +=
+ n_free +=
(dev->param.chunks_per_block - blk->pages_in_use +
blk->soft_del_pages);
break;
blk++;
}
- return nFree;
+ return n_free;
}
int yaffs_get_n_free_chunks(yaffs_dev_t *dev)
{
/* This is what we report to the outside world */
- int nFree;
- int nDirtyCacheChunks;
- int blocksForCheckpoint;
+ int n_free;
+ int n_dirty_caches;
+ int blocks_for_checkpt;
int i;
#if 1
- nFree = dev->n_free_chunks;
+ n_free = dev->n_free_chunks;
#else
- nFree = yaffs_count_free_chunks(dev);
+ n_free = yaffs_count_free_chunks(dev);
#endif
- nFree += dev->n_deleted_files;
+ n_free += dev->n_deleted_files;
/* Now count the number of dirty chunks in the cache and subtract those */
- for (nDirtyCacheChunks = 0, i = 0; i < dev->param.n_caches; i++) {
+ for (n_dirty_caches = 0, i = 0; i < dev->param.n_caches; i++) {
if (dev->cache[i].dirty)
- nDirtyCacheChunks++;
+ n_dirty_caches++;
}
- nFree -= nDirtyCacheChunks;
+ n_free -= n_dirty_caches;
- nFree -= ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block);
+ n_free -= ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block);
/* Now we figure out how much to reserve for the checkpoint and report that... */
- blocksForCheckpoint = yaffs_calc_checkpt_blocks_required(dev);
+ blocks_for_checkpt = yaffs_calc_checkpt_blocks_required(dev);
- nFree -= (blocksForCheckpoint * dev->param.chunks_per_block);
+ n_free -= (blocks_for_checkpt * dev->param.chunks_per_block);
- if (nFree < 0)
- nFree = 0;
+ if (n_free < 0)
+ n_free = 0;
- return nFree;
+ return n_free;
}
projects / yaffs2.git / blobdiff