/*
* Handle management.
* There are open inodes in yaffsfs_Inode.
- * There are open handles in yaffsfs_Handle.
+ * There are open file descriptors in yaffsfs_FileDes.
+ * There are open handles in yaffsfs_FileDes.
*
* Things are structured this way to be like the Linux VFS model
* so that interactions with the yaffs guts calls are similar.
* That means more common code paths and less special code.
* That means better testing etc.
+ *
+ * We have 3 layers because:
+ * A handle is different than an fd because you can use dup()
+ * to create a new handle that accesses the *same* fd. The two
+ * handles will use the same offset (part of the fd). We only close
+ * down the fd when there are no more handles accessing it.
+ *
+ * More than one fd can currently access one file, but each fd
+ * has its own permsiions and offset.
*/
typedef struct {
u8 shareRead:1;
u8 shareWrite:1;
int inodeId:12; /* Index to corresponding yaffsfs_Inode */
- int useCount:10; /* Use count for this handle */
+ int handleCount:10; /* Number of handles for this fd */
u32 position; /* current position in file */
-}yaffsfs_Handle;
+}yaffsfs_FileDes;
+
+typedef struct {
+ short int fdId;
+ short int useCount;
+} yaffsfs_Handle;
static yaffsfs_Inode yaffsfs_inode[YAFFSFS_N_HANDLES];
+static yaffsfs_FileDes yaffsfs_fd[YAFFSFS_N_HANDLES];
static yaffsfs_Handle yaffsfs_handle[YAFFSFS_N_HANDLES];
+
static int yaffsfs_handlesInitialised;
return;
memset(yaffsfs_inode,0,sizeof(yaffsfs_inode));
+ memset(yaffsfs_fd,0,sizeof(yaffsfs_fd));
memset(yaffsfs_handle,0,sizeof(yaffsfs_handle));
+
for(i = 0; i < YAFFSFS_N_HANDLES; i++)
- yaffsfs_handle[i].inodeId = -1;
+ yaffsfs_fd[i].inodeId = -1;
+ for(i = 0; i < YAFFSFS_N_HANDLES; i++)
+ yaffsfs_handle[i].fdId = -1;
}
-yaffsfs_Handle *yaffsfs_GetHandlePointer(int h)
+static yaffsfs_Handle *yaffsfs_HandleToPointer(int h)
{
- if(h < 0 || h >= YAFFSFS_N_HANDLES)
- return NULL;
+ if(h >= 0 && h <= YAFFSFS_N_HANDLES)
+ return &yaffsfs_handle[h];
+ return NULL;
+}
+
+static yaffsfs_FileDes *yaffsfs_HandleToFileDes(int handle)
+{
+ yaffsfs_Handle *h = yaffsfs_HandleToPointer(handle);
- return &yaffsfs_handle[h];
+ if(h && h->useCount > 0 && h->fdId >= 0 && h->fdId < YAFFSFS_N_HANDLES)
+ return &yaffsfs_fd[h->fdId];
+
+ return NULL;
}
-yaffsfs_Inode *yaffsfs_GetInodePointer(int handle)
+static yaffsfs_Inode *yaffsfs_HandleToInode(int handle)
{
- yaffsfs_Handle *h = yaffsfs_GetHandlePointer(handle);
+ yaffsfs_FileDes *fd = yaffsfs_HandleToFileDes(handle);
- if(h && h->useCount > 0 && h->inodeId >= 0 && h->inodeId < YAFFSFS_N_HANDLES)
- return &yaffsfs_inode[h->inodeId];
+ if(fd && fd->handleCount > 0 &&
+ fd->inodeId >= 0 && fd->inodeId < YAFFSFS_N_HANDLES)
+ return &yaffsfs_inode[fd->inodeId];
return NULL;
}
-struct yaffs_obj *yaffsfs_GetHandleObject(int handle)
+static struct yaffs_obj *yaffsfs_HandleToObject(int handle)
{
- yaffsfs_Inode *in = yaffsfs_GetInodePointer(handle);
+ yaffsfs_Inode *in = yaffsfs_HandleToInode(handle);
if(in)
return in->iObj;
}
-/*
- * yaffsfs_GetHandle
- * Grab a handle (when opening a file)
- */
-static int yaffsfs_GetNewHandle(void)
+static int yaffsfs_NewHandle(yaffsfs_Handle **hptr)
{
int i;
yaffsfs_Handle *h;
for(i = 0; i < YAFFSFS_N_HANDLES; i++){
- h = yaffsfs_GetHandlePointer(i);
- if(!h){
- /* todo bug: should never happen */
- }
+ h = &yaffsfs_handle[i];
if(h->useCount < 1){
memset(h,0,sizeof(yaffsfs_Handle));
- h->inodeId=-1;
+ h->fdId=-1;
h->useCount=1;
+ if(hptr)
+ *hptr = h;
return i;
}
}
return -1;
}
+static int yaffsfs_NewHandleAndFileDes(void)
+{
+ int i;
+ yaffsfs_FileDes *fd;
+ yaffsfs_Handle *h = NULL;
+ int handle = yaffsfs_NewHandle(&h);
+
+ if(handle < 0)
+ return -1;
+
+ for(i = 0; i < YAFFSFS_N_HANDLES; i++){
+ fd = &yaffsfs_fd[i];
+ if(fd->handleCount < 1){
+ memset(fd,0,sizeof(yaffsfs_FileDes));
+ fd->inodeId=-1;
+ fd->handleCount=1;
+ h->fdId = i;
+ return handle;
+ }
+ }
+
+ /* Dump the handle because we could not get a fd */
+ h->useCount = 0;
+ return -1;
+}
+
/*
* yaffs_get_handle
* Increase use of handle when reading/writing a file
+ * Also gets the file descriptor.
*/
+
static int yaffsfs_GetHandle(int handle)
{
- yaffsfs_Handle *h = yaffsfs_GetHandlePointer(handle);
+ yaffsfs_Handle *h = yaffsfs_HandleToPointer(handle);
if(h && h->useCount > 0){
h->useCount++;
+ return 0;
}
- return 0;
+ return -1;
}
/*
* Let go of a handle when closing a file or aborting an open or
* ending a read or write.
*/
+
+static int yaffsfs_PutFileDes(int fdId)
+{
+ yaffsfs_FileDes *fd;
+
+ if(fdId >= 0 && fdId < YAFFSFS_N_HANDLES){
+ fd = &yaffsfs_fd[fdId];
+ fd->handleCount--;
+ if(fd->handleCount < 1){
+ if(fd->inodeId >= 0){
+ yaffsfs_PutInode(fd->inodeId);
+ fd->inodeId = -1;
+ }
+ }
+ }
+ return 0;
+}
static int yaffsfs_PutHandle(int handle)
{
- yaffsfs_Handle *h = yaffsfs_GetHandlePointer(handle);
+ yaffsfs_Handle *h = yaffsfs_HandleToPointer(handle);
if(h && h->useCount > 0){
h->useCount--;
if(h->useCount < 1){
- if(h->inodeId >= 0){
- yaffsfs_PutInode(h->inodeId);
- h->inodeId = -1;
- }
+ yaffsfs_PutFileDes(h->fdId);
+ h->fdId = -1;
}
}
+
return 0;
}
static void yaffsfs_BreakDeviceHandles(struct yaffs_dev *dev)
{
+ yaffsfs_FileDes *fd;
yaffsfs_Handle *h;
struct yaffs_obj *obj;
int i;
for(i = 0; i < YAFFSFS_N_HANDLES; i++){
- h = yaffsfs_GetHandlePointer(i);
- obj = yaffsfs_GetHandleObject(i);
- if(h && h->useCount>0 && obj && obj->my_dev == dev){
+ h = yaffsfs_HandleToPointer(i);
+ fd = yaffsfs_HandleToFileDes(i);
+ obj = yaffsfs_HandleToObject(i);
+ if(h && h->useCount > 0){
h->useCount = 0;
- yaffsfs_PutInode(h->inodeId);
- h->inodeId = -1;
+ h->fdId = 0;
+ }
+ if(fd && fd->handleCount>0 && obj && obj->my_dev == dev){
+
+ fd->handleCount = 0;
+ yaffsfs_PutInode(fd->inodeId);
+ fd->inodeId = -1;
}
}
}
* Start of yaffsfs visible functions.
*************************************************************************/
-int yaffs_dup(int fd)
+int yaffs_dup(int handle)
{
- int newHandle = -1;
- yaffsfs_Handle *oldPtr = NULL;
- yaffsfs_Handle *newPtr = NULL;
+ int newHandleNumber = -1;
+ yaffsfs_FileDes *existingFD = NULL;
+ yaffsfs_Handle *existingHandle = NULL;
+ yaffsfs_Handle *newHandle = NULL;
yaffsfs_Lock();
-
- oldPtr = yaffsfs_GetHandlePointer(fd);
- if(oldPtr && oldPtr->useCount > 0)
- newHandle = yaffsfs_GetNewHandle();
- if(newHandle >= 0)
- newPtr = yaffsfs_GetHandlePointer(newHandle);
-
- if(newPtr)
- *newPtr = *oldPtr;
+ existingHandle = yaffsfs_HandleToPointer(handle);
+ existingFD = yaffsfs_HandleToFileDes(handle);
+ if(existingFD)
+ newHandleNumber = yaffsfs_NewHandle(&newHandle);
+ if(newHandle){
+ newHandle->fdId = existingHandle->fdId;
+ existingFD->handleCount++;
+ }
yaffsfs_Unlock();
- if(!oldPtr)
+ if(!existingFD)
yaffsfs_SetError(-EBADF);
- else if (!newPtr)
+ else if (!newHandle)
yaffsfs_SetError(-ENOMEM);
- return newHandle;
+ return newHandleNumber;
}
struct yaffs_obj *dir = NULL;
YCHAR *name;
int handle = -1;
- yaffsfs_Handle *yh = NULL;
+ yaffsfs_FileDes *fd = NULL;
int openDenied = 0;
int symDepth = 0;
int errorReported = 0;
yaffsfs_Lock();
- handle = yaffsfs_GetNewHandle();
+ handle = yaffsfs_NewHandleAndFileDes();
if(handle < 0){
yaffsfs_SetError(-ENFILE);
errorReported = 1;
} else {
- yh = yaffsfs_GetHandlePointer(handle);
+ fd = yaffsfs_HandleToFileDes(handle);
/* try to find the exisiting object */
obj = yaffsfs_FindObject(NULL,path,0,1,NULL,NULL,NULL);
/* Check sharing of an existing object. */
if(!openDenied){
- yaffsfs_Handle *hx;
+ yaffsfs_FileDes *fdx;
int i;
+
sharedReadAllowed = 1;
sharedWriteAllowed = 1;
alreadyReading = 0;
alreadyWriting = 0;
for( i = 0; i < YAFFSFS_N_HANDLES; i++){
- hx = &yaffsfs_handle[i];
- if(hx->useCount > 0 &&
- hx->inodeId >= 0 &&
- yaffsfs_inode[hx->inodeId].iObj == obj){
- if(!hx->shareRead)
+ fdx = &yaffsfs_fd[i];
+ if(fdx->handleCount > 0 &&
+ fdx->inodeId >= 0 &&
+ yaffsfs_inode[fdx->inodeId].iObj == obj){
+ if(!fdx->shareRead)
sharedReadAllowed = 0;
- if(!hx->shareWrite)
+ if(!fdx->shareWrite)
sharedWriteAllowed = 0;
- if(hx->reading)
+ if(fdx->reading)
alreadyReading = 1;
- if(hx->writing)
+ if(fdx->writing)
alreadyWriting = 1;
}
}
*/
}
- yh->inodeId = inodeId;
- yh->reading = readRequested;
- yh->writing = writeRequested;
- yh->append = (oflag & O_APPEND) ? 1 : 0;
- yh->position = 0;
- yh->shareRead = shareRead;
- yh->shareWrite = shareWrite;
+ fd->inodeId = inodeId;
+ fd->reading = readRequested;
+ fd->writing = writeRequested;
+ fd->append = (oflag & O_APPEND) ? 1 : 0;
+ fd->position = 0;
+ fd->shareRead = shareRead;
+ fd->shareWrite = shareWrite;
/* Hook inode to object */
obj->my_inode = (void*) &yaffsfs_inode[inodeId];
- if((oflag & O_TRUNC) && yh->writing)
+ if((oflag & O_TRUNC) && fd->writing)
yaffs_resize_file(obj,0);
} else {
yaffsfs_PutHandle(handle);
int yaffs_open(const YCHAR *path, int oflag, int mode)
{
- return yaffs_open_sharing(path, oflag, mode, YAFFS_SHARE_READ | YAFFS_SHARE_WRITE);
+ return yaffs_open_sharing(path, oflag, mode,
+ YAFFS_SHARE_READ | YAFFS_SHARE_WRITE);
}
-int yaffs_Dofsync(int fd,int datasync)
+int yaffs_Dofsync(int handle,int datasync)
{
- yaffsfs_Handle *h = NULL;
int retVal = -1;
+ struct yaffs_obj *obj;
yaffsfs_Lock();
- h = yaffsfs_GetHandlePointer(fd);
+ obj = yaffsfs_HandleToObject(handle);
- if(!h || h->useCount < 1)
+ if(!obj)
yaffsfs_SetError(-EBADF);
- else {
- struct yaffs_obj * obj;
- obj = yaffsfs_inode[h->inodeId].iObj;
- if(obj->my_dev->read_only)
- yaffsfs_SetError(-EROFS);
- else {
- yaffs_flush_file(yaffsfs_inode[h->inodeId].iObj,1,datasync);
- retVal = 0;
- }
+ else if(obj->my_dev->read_only)
+ yaffsfs_SetError(-EROFS);
+ else {
+ yaffs_flush_file(obj,1,datasync);
+ retVal = 0;
}
yaffsfs_Unlock();
return retVal;
}
-int yaffs_fsync(int fd)
+int yaffs_fsync(int handle)
{
- return yaffs_Dofsync(fd,0);
+ return yaffs_Dofsync(handle,0);
}
-int yaffs_flush(int fd)
+int yaffs_flush(int handle)
{
- return yaffs_fsync(fd);
+ return yaffs_fsync(handle);
}
-int yaffs_fdatasync(int fd)
+int yaffs_fdatasync(int handle)
{
- return yaffs_Dofsync(fd,1);
+ return yaffs_Dofsync(handle,1);
}
-int yaffs_close(int fd)
+int yaffs_close(int handle)
{
yaffsfs_Handle *h = NULL;
- int retVal = 0;
+ struct yaffs_obj *obj = NULL;
+ int retVal = -1;
yaffsfs_Lock();
- h = yaffsfs_GetHandlePointer(fd);
+ h = yaffsfs_HandleToPointer(handle);
+ obj = yaffsfs_HandleToObject(handle);
- if(h && h->useCount > 0) {
+ if(!h || !obj)
+ yaffsfs_SetError(-EBADF);
+ else {
/* clean up */
- yaffs_flush_file(yaffsfs_inode[h->inodeId].iObj,1,0);
- yaffsfs_PutHandle(fd);
+ yaffs_flush_file(obj,1,0);
+ yaffsfs_PutHandle(handle);
retVal = 0;
- } else {
- /* bad handle */
- yaffsfs_SetError(-EBADF);
- retVal = -1;
}
yaffsfs_Unlock();
-int yaffsfs_do_read(int fd, void *vbuf, unsigned int nbyte, int isPread, int offset)
+int yaffsfs_do_read(int handle, void *vbuf, unsigned int nbyte, int isPread, int offset)
{
- yaffsfs_Handle *h = NULL;
+ yaffsfs_FileDes *fd = NULL;
struct yaffs_obj *obj = NULL;
int pos = 0;
int startPos = 0;
}
yaffsfs_Lock();
- h = yaffsfs_GetHandlePointer(fd);
- obj = yaffsfs_GetHandleObject(fd);
+ fd = yaffsfs_HandleToFileDes(handle);
+ obj = yaffsfs_HandleToObject(handle);
- if(!h || !obj){
+ if(!fd || !obj){
/* bad handle */
yaffsfs_SetError(-EBADF);
totalRead = -1;
- } else if(!h->reading){
+ } else if(!fd->reading){
/* Not a reading handle */
yaffsfs_SetError(-EINVAL);
totalRead = -1;
if(isPread)
startPos = offset;
else
- startPos = h->position;
+ startPos = fd->position;
pos = startPos;
nbyte = maxRead;
- yaffsfs_GetHandle(fd);
+ yaffsfs_GetHandle(handle);
endPos = pos + nbyte;
* Need to reverify object in case the device was
* unmounted in another thread.
*/
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(handle);
if(!obj)
nRead = 0;
else
}
- yaffsfs_PutHandle(fd);
+ yaffsfs_PutHandle(handle);
if(!isPread) {
if(totalRead >= 0)
- h->position = startPos + totalRead;
+ fd->position = startPos + totalRead;
else
yaffsfs_SetError(-EINVAL);
}
}
-int yaffs_read(int fd, void *buf, unsigned int nbyte)
+int yaffs_read(int handle, void *buf, unsigned int nbyte)
{
- return yaffsfs_do_read(fd, buf, nbyte, 0, 0);
+ return yaffsfs_do_read(handle, buf, nbyte, 0, 0);
}
-int yaffs_pread(int fd, void *buf, unsigned int nbyte, unsigned int offset)
+int yaffs_pread(int handle, void *buf, unsigned int nbyte, unsigned int offset)
{
- return yaffsfs_do_read(fd, buf, nbyte, 1, offset);
+ return yaffsfs_do_read(handle, buf, nbyte, 1, offset);
}
-int yaffsfs_do_write(int fd, const void *vbuf, unsigned int nbyte, int isPwrite, int offset)
+int yaffsfs_do_write(int handle, const void *vbuf, unsigned int nbyte, int isPwrite, int offset)
{
- yaffsfs_Handle *h = NULL;
+ yaffsfs_FileDes *fd = NULL;
struct yaffs_obj *obj = NULL;
int pos = 0;
int startPos = 0;
}
yaffsfs_Lock();
- h = yaffsfs_GetHandlePointer(fd);
- obj = yaffsfs_GetHandleObject(fd);
+ fd = yaffsfs_HandleToFileDes(handle);
+ obj = yaffsfs_HandleToObject(handle);
- if(!h || !obj){
+ if(!fd || !obj){
/* bad handle */
yaffsfs_SetError(-EBADF);
totalWritten = -1;
- } else if(!h->writing){
+ } else if(!fd->writing){
yaffsfs_SetError(-EINVAL);
totalWritten=-1;
} else if(obj->my_dev->read_only){
yaffsfs_SetError(-EROFS);
totalWritten=-1;
} else {
- if(h->append)
+ if(fd->append)
startPos = yaffs_get_obj_length(obj);
else if(isPwrite)
startPos = offset;
else
- startPos = h->position;
+ startPos = fd->position;
- yaffsfs_GetHandle(fd);
+ yaffsfs_GetHandle(handle);
pos = startPos;
endPos = pos + nbyte;
* Need to reverify object in case the device was
* remounted or unmounted in another thread.
*/
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(handle);
if(!obj || obj->my_dev->read_only)
nWritten = 0;
else
}
}
- yaffsfs_PutHandle(fd);
+ yaffsfs_PutHandle(handle);
if(!isPwrite){
if(totalWritten > 0)
- h->position = startPos + totalWritten;
+ fd->position = startPos + totalWritten;
else
yaffsfs_SetError(-EINVAL);
}
return (result) ? 0 : -1;
}
-int yaffs_ftruncate(int fd, off_t new_size)
+int yaffs_ftruncate(int handle, off_t new_size)
{
- yaffsfs_Handle *h = NULL;
+ yaffsfs_FileDes *fd = NULL;
struct yaffs_obj *obj = NULL;
int result = 0;
yaffsfs_Lock();
- h = yaffsfs_GetHandlePointer(fd);
- obj = yaffsfs_GetHandleObject(fd);
+ fd = yaffsfs_HandleToFileDes(handle);
+ obj = yaffsfs_HandleToObject(handle);
- if(!h || !obj)
+ if(!fd || !obj)
/* bad handle */
yaffsfs_SetError(-EBADF);
- else if(!h->writing)
+ else if(!fd->writing)
yaffsfs_SetError(-EINVAL);
else if(obj->my_dev->read_only)
yaffsfs_SetError(-EROFS);
}
-off_t yaffs_lseek(int fd, off_t offset, int whence)
+off_t yaffs_lseek(int handle, off_t offset, int whence)
{
- yaffsfs_Handle *h = NULL;
+ yaffsfs_FileDes *fd = NULL;
struct yaffs_obj *obj = NULL;
int pos = -1;
int fSize = -1;
yaffsfs_Lock();
- h = yaffsfs_GetHandlePointer(fd);
- obj = yaffsfs_GetHandleObject(fd);
+ fd = yaffsfs_HandleToFileDes(handle);
+ obj = yaffsfs_HandleToObject(handle);
- if(!h || !obj)
+ if(!fd || !obj)
yaffsfs_SetError(-EBADF);
else if(offset > YAFFS_MAX_FILE_SIZE)
yaffsfs_SetError(-EINVAL);
if(offset >= 0)
pos = offset;
} else if(whence == SEEK_CUR) {
- if( (h->position + offset) >= 0)
- pos = (h->position + offset);
+ if( (fd->position + offset) >= 0)
+ pos = (fd->position + offset);
} else if(whence == SEEK_END) {
fSize = yaffs_get_obj_length(obj);
if(fSize >= 0 && (fSize + offset) >= 0)
}
if(pos >= 0 && pos <= YAFFS_MAX_FILE_SIZE)
- h->position = pos;
+ fd->position = pos;
else{
yaffsfs_SetError(-EINVAL);
pos = -1;
}
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(obj)
retVal = yaffsfs_DoStat(obj,buf);
}
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(!obj)
yaffsfs_SetError(-EBADF);
}
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(obj) {
retVal = yaffs_get_xattrib(obj,name,data,size);
}
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(obj) {
retVal = yaffs_list_xattrib(obj,data,size);
}
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(obj){
retVal = yaffs_remove_xattrib(obj,name);
int retVal = -1;
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(obj){
int retVal = -1;
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(obj){
}
yaffsfs_Lock();
- obj = yaffsfs_GetHandleObject(fd);
+ obj = yaffsfs_HandleToObject(fd);
if(!obj)
yaffsfs_SetError(-EBADF);
}
+static int yaffsfs_IsDevBusy(struct yaffs_dev * dev)
+{
+ int i;
+ struct yaffs_obj *obj;
+
+ for(i = 0; i < YAFFSFS_N_HANDLES; i++){
+ obj = yaffsfs_HandleToObject(i);
+ if(obj && obj->my_dev == dev)
+ return 1;
+ }
+ return 0;
+}
+
+
int yaffs_remount(const YCHAR *path, int force, int read_only)
{
int retVal=-1;
struct yaffs_dev *dev=NULL;
- yaffsfs_Handle *yh;
if(!path){
yaffsfs_SetError(-EFAULT);
dev = yaffsfs_FindMountPoint(path);
if(dev){
if(dev->is_mounted){
- int i;
- int inUse;
-
yaffs_flush_whole_cache(dev);
- for(i = inUse = 0; i < YAFFSFS_N_HANDLES && !inUse && !force; i++){
- yh = & yaffsfs_handle[i];
- if(yh->useCount>0 &&
- yaffsfs_inode[yh->inodeId].iObj->my_dev == dev)
- inUse = 1; /* the device is in use, can't unmount */
- }
-
- if(!inUse || force){
+ if(force || ! yaffsfs_IsDevBusy(dev)){
if(read_only)
yaffs_checkpoint_save(dev);
dev->read_only = read_only ? 1 : 0;
dev = yaffsfs_FindMountPoint(path);
if(dev){
if(dev->is_mounted){
- int i;
int inUse;
-
yaffs_flush_whole_cache(dev);
yaffs_checkpoint_save(dev);
-
- for(i = inUse = 0; i < YAFFSFS_N_HANDLES && !inUse; i++){
- if(yaffsfs_handle[i].useCount > 0 &&
- yaffsfs_inode[yaffsfs_handle[i].inodeId].iObj->my_dev == dev)
- inUse = 1; /* the device is in use, can't unmount */
- }
-
+ inUse = yaffsfs_IsDevBusy(dev);
if(!inUse || force){
if(inUse)
yaffsfs_BreakDeviceHandles(dev);
projects / yaffs2.git / blobdiff