ssize_t
xixfs_file_readv(
struct file *filp,
const struct iovec *iov,
unsigned long nr_segs,
loff_t *ppos
)
{
struct address_space *mapping = filp->f_mapping;
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
XIXCORE_ASSERT(inode);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_readv (%s).\n", filp->f_dentry->d_name.name));
return generic_file_readv(filp, iov, nr_segs, ppos);
}
int
xixfs_file_open(
struct inode * inode,
struct file * filp
)
{
struct super_block *sb = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
PXIXFS_LINUX_FCB pFCB = NULL;
int RC = 0;
sb = inode->i_sb;
XIXCORE_ASSERT(sb);
pVCB = XIXFS_SB(sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_open (%s). MODE(0x%x). %d(%p)\n", filp->f_dentry->d_name.name, filp->f_flags, inode->i_ino, inode));
if( pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE) {
if(XIXCORE_TEST_FLAGS(filp->f_flags, (O_WRONLY|O_RDWR| O_TRUNC|O_APPEND)) ){
if(pFCB->XixcoreFcb.HasLock != INODE_FILE_LOCK_HAS) {
RC = xixcore_LotLock(
&pVCB->XixcoreVcb,
pFCB->XixcoreFcb.LotNumber,
&pFCB->XixcoreFcb.HasLock,
1,
1
);
/*
if( RC < 0 ) {
return -EINVAL;
}
*/
}
}
}
return generic_file_open(inode, filp);
}
ssize_t
xixfs_file_read(
struct file *filp,
char __user *buf,
size_t count,
loff_t *ppos
)
{
#if LINUX_VERSION_25_ABOVE
struct address_space *mapping = filp->f_mapping;
#else
struct address_space *mapping = filp->f_dentry->d_inode->i_mapping;
#endif
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
ssize_t ret = 0;
XIXCORE_ASSERT(inode);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_read (%s).\n", filp->f_dentry->d_name.name));
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
//printk(KERN_DEBUG "xixfs_file_read ERROR\n");
return -EPERM;
}
//ret = do_sync_read(filp, buf, count, ppos);
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
ret = do_sync_read(filp, buf, count, ppos);
#else
ret = generic_file_read(filp, buf, count, ppos);
#endif
//printk(KERN_DEBUG "xixfs_file_read ret (0x%x)\n", ret);
return ret;
}
VOID
xixfs_FCBTLBRemovePrefix (
IN BOOLEAN CanWait,
IN PXIXFS_LCB Lcb
)
{
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CREATE|DEBUG_TARGET_CLOSE| DEBUG_TARGET_FCB),
("Enter xixfs_FCBTLBRemovePrefix \n" ));
//
// Check inputs.
//
ASSERT_LCB( Lcb );
//
// Check the acquisition of the two Fcbs.
//
ASSERT_EXCLUSIVE_FCB_OR_VCB( Lcb->ParentFcb );
ASSERT_EXCLUSIVE_FCB_OR_VCB( Lcb->ChildFcb );
//
// Now remove the linkage and delete the Lcb.
//
RemoveEntryList( &Lcb->ParentFcbLinks );
RemoveEntryList( &Lcb->ChildFcbLinks );
if(XIXCORE_TEST_FLAGS(Lcb->LCBFlags, XIFSD_LCB_STATE_IGNORE_CASE_SET)){
Lcb->ParentFcb->IgnoreCaseRoot = RtlDelete( &Lcb->IgnoreCaseLinks);
}
Lcb->ParentFcb->Root = RtlDelete( &Lcb->Links );
xixfs_FreeLCB(Lcb);
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CREATE|DEBUG_TARGET_CLOSE| DEBUG_TARGET_FCB),
("Exit xixfs_FCBTLBRemovePrefix \n" ));
return;
}
ssize_t
xixfs_file_aio_read(
struct kiocb *iocb,
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
const struct iovec *iov,
unsigned long count,
#else
char __user *buf,
size_t count,
#endif
loff_t pos
)
{
struct address_space *mapping = iocb->ki_filp->f_mapping;
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
ssize_t ret = 0;
XIXCORE_ASSERT(inode);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
//printk(KERN_DEBUG "xixfs_file_aio_read ERROR\n");
return -EPERM;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_aio_read .\n"));
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
ret = generic_file_aio_read(iocb, iov, count, pos);
#else
ret = generic_file_aio_read(iocb, buf, count, pos);
#endif
//printk(KERN_DEBUG "xixfs_file_aio_read ret (0x%x)\n", ret);
return ret;
}
void
xixcore_call
xixcore_FreeBuffer(PXIXCORE_BUFFER xixfsBuffer)
{
PXIX_BUF xbuf = container_of(xixfsBuffer, XIX_BUF, xixcore_buffer);
if(xbuf->xix_page){
free_pages(
(unsigned long)xbuf->xixcore_buffer.xcb_data,
get_order(xbuf->xixcore_buffer.xcb_size));
xbuf->xix_page = NULL;
xbuf->xixcore_buffer.xcb_data = NULL;
}
if(XIXCORE_TEST_FLAGS(xixfsBuffer->xcb_flags,XIXCORE_BUFF_ALLOC_F_MEMORY)){
kfree(xbuf);
}else{
kmem_cache_free(xbuf_cachep, xbuf);
}
return;
}
VOID
xixfs_SetFileObject(
IN PXIXFS_IRPCONTEXT IrpContext,
IN PFILE_OBJECT FileObject,
IN TYPE_OF_OPEN TypeOfOpen,
IN PXIXFS_FCB pFCB OPTIONAL,
IN PXIXFS_CCB pCCB OPTIONAL
)
{
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Enter xixfs_SetFileObject\n"));
ASSERT(!XIXCORE_TEST_FLAGS(((ULONG_PTR)pCCB), TYPE_OF_OPEN_MASK));
if(TypeOfOpen == UnopenedFileObject){
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("xixfs_SetFileObject UnopenedFileObject\n"));
FileObject->FsContext =
FileObject->FsContext2 = NULL;
return;
}
FileObject->FsContext = pFCB;
FileObject->FsContext2 = pCCB;
FileObject->CurrentByteOffset.QuadPart = 0;
XIXCORE_SET_FLAGS(((ULONG_PTR)FileObject->FsContext2), TypeOfOpen);
FileObject->Vpb = pFCB->PtrVCB->PtrVPB;
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Exit xixfs_SetFileObject\n"));
return;
}
NTSTATUS
xixfs_CommonQueryVolumeInformation(
IN PXIXFS_IRPCONTEXT pIrpContext
)
{
NTSTATUS RC = STATUS_SUCCESS;
PIRP pIrp = NULL;
PIO_STACK_LOCATION pIrpSp = NULL;
PXIXFS_VCB pVCB = NULL;
PXIXFS_FCB pFCB = NULL;
PXIXFS_CCB pCCB = NULL;
PFILE_OBJECT pFileObject = NULL;
BOOLEAN Wait = FALSE;
uint32 BytesToReturn = 0;
uint32 Length = 0;
TYPE_OF_OPEN TypeOfOpen = UnopenedFileObject;
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_VOLINFO|DEBUG_TARGET_IRPCONTEXT),
("Enter xixfs_CommonQueryVolumeInformation \n"));
ASSERT(pIrpContext);
pIrp = pIrpContext->Irp;
ASSERT(pIrp);
pIrpSp = IoGetCurrentIrpStackLocation(pIrp);
ASSERT(pIrp);
pFileObject = pIrpSp->FileObject;
ASSERT(pFileObject);
TypeOfOpen = xixfs_DecodeFileObject( pFileObject, &pFCB, &pCCB );
if (TypeOfOpen == UnopenedFileObject) {
RC = STATUS_INVALID_PARAMETER;
xixfs_CompleteRequest( pIrpContext, STATUS_INVALID_PARAMETER, 0 );
return RC;
}
DebugTrace(DEBUG_LEVEL_CRITICAL, DEBUG_TARGET_ALL,
("!!!!VolumeInformation pCCB(%p)\n", pCCB));
pVCB = pFCB->PtrVCB;
ASSERT_VCB(pVCB);
Wait = XIXCORE_TEST_FLAGS(pIrpContext->IrpContextFlags, XIFSD_IRP_CONTEXT_WAIT);
if(!ExAcquireResourceSharedLite(&(pVCB->VCBResource), Wait)){
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_VOLINFO|DEBUG_TARGET_IRPCONTEXT),
("PostRequest IrpContext(%p) Irp(%p)\n", pIrpContext, pIrp));
RC = xixfs_PostRequest(pIrpContext, pIrp);
return RC;
}
try{
Length = pIrpSp->Parameters.QueryVolume.Length ;
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_VOLINFO|DEBUG_TARGET_IRPCONTEXT),
("pIrpSp->Parameters.QueryVolume.FsInformationClass (0x%x)\n",
pIrpSp->Parameters.QueryVolume.FsInformationClass));
switch (pIrpSp->Parameters.QueryVolume.FsInformationClass) {
case FileFsSizeInformation:
{
RC = xixfs_QueryFsSizeInfo( pIrpContext, pVCB, pIrp->AssociatedIrp.SystemBuffer, Length, &BytesToReturn );
xixfs_CompleteRequest(pIrpContext, RC, BytesToReturn);
break;
}
case FileFsVolumeInformation:
{
RC = xixfs_QueryFsVolumeInfo( pIrpContext, pVCB, pIrp->AssociatedIrp.SystemBuffer, Length, &BytesToReturn );
xixfs_CompleteRequest(pIrpContext, RC, BytesToReturn);
break;
}
case FileFsDeviceInformation:
{
RC = xixfs_QueryFsDeviceInfo( pIrpContext, pVCB, pIrp->AssociatedIrp.SystemBuffer, Length, &BytesToReturn );
xixfs_CompleteRequest(pIrpContext, RC, BytesToReturn);
break;
}
case FileFsAttributeInformation:
{
RC = xixfs_QueryFsAttributeInfo( pIrpContext, pVCB, pIrp->AssociatedIrp.SystemBuffer, Length, &BytesToReturn );
xixfs_CompleteRequest(pIrpContext, RC, BytesToReturn);
break;
}
case FileFsFullSizeInformation:
{
RC = xixfs_QueryFsFullSizeInfo(pIrpContext, pVCB, pIrp->AssociatedIrp.SystemBuffer, Length, &BytesToReturn);
xixfs_CompleteRequest(pIrpContext, RC, BytesToReturn);
break;
}
default:
DebugTrace( DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("default Not supported Volume Info %ld\n",pIrpSp->Parameters.QueryVolume.FsInformationClass));
RC = STATUS_INVALID_PARAMETER;
xixfs_CompleteRequest(pIrpContext, RC, 0);
break;
}
}finally{
ExReleaseResourceLite(&(pVCB->VCBResource));
}
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_VOLINFO|DEBUG_TARGET_IRPCONTEXT),
("Exit xixfs_CommonQueryVolumeInformation \n"));
return RC;
}
PXIXFS_LCB
xixfs_FCBTLBInsertPrefix (
IN PXIXFS_IRPCONTEXT IrpContext,
IN PXIXFS_FCB Fcb,
IN PUNICODE_STRING Name,
IN PXIXFS_FCB ParentFcb
)
{
PXIXFS_LCB Lcb;
PRTL_SPLAY_LINKS *TreeRoot;
PLIST_ENTRY ListLinks;
PWCHAR NameBuffer;
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CREATE|DEBUG_TARGET_CLOSE| DEBUG_TARGET_FCB),
("Enter xixfs_FCBTLBInsertPrefix \n" ));
//
// Check inputs.
//
ASSERT_IRPCONTEXT( IrpContext );
ASSERT_FCB( Fcb );
ASSERT_EXCLUSIVE_FCB( Fcb );
ASSERT_EXCLUSIVE_FCB( ParentFcb );
ASSERT( ParentFcb->XixcoreFcb.FCBType == FCB_TYPE_DIR);
//
// It must be the case that an index Fcb is only referenced by a single index. Now
// we walk the child's Lcb queue to insure that if any prefixes have already been
// inserted, they all refer to the index Fcb we are linking to. This is the only way
// we can detect directory cross-linkage.
//
if (Fcb->XixcoreFcb.FCBType == FCB_TYPE_DIR) {
for (ListLinks = Fcb->ParentLcbQueue.Flink;
ListLinks != &Fcb->ParentLcbQueue;
ListLinks = ListLinks->Flink) {
Lcb = CONTAINING_RECORD( ListLinks, XIXFS_LCB, ChildFcbLinks );
if (Lcb->ParentFcb != ParentFcb) {
XifsdRaiseStatus( IrpContext, STATUS_DISK_CORRUPT_ERROR );
}
}
}
//
// Allocate space for the Lcb.
//
Lcb = xixfs_AllocateLCB(Name->Length);
//
// Initialize the name-based file attributes.
//
Lcb->FileAttributes = 0;
//
// Set up the filename in the Lcb.
//
RtlCopyMemory( Lcb->FileName.Buffer,
Name->Buffer,
Name->Length );
//
// Capture the separate cases.
//
TreeRoot = &ParentFcb->Root;
//
// Insert the Lcb into the prefix tree.
//
if (!xixfs_NLInsertNameLink( IrpContext,
TreeRoot,
Lcb )) {
//
// This will very rarely occur.
//
xixfs_FreeLCB( Lcb );
Lcb = xixfs_NLFindNameLink( IrpContext,
TreeRoot,
Name );
if (Lcb == NULL) {
//
// Even worse.
//
XifsdRaiseStatus( IrpContext, STATUS_DRIVER_INTERNAL_ERROR );
}
if(!XIXCORE_TEST_FLAGS(Lcb->LCBFlags, XIFSD_LCB_STATE_IGNORE_CASE_SET)){
XifsdRaiseStatus( IrpContext, STATUS_DRIVER_INTERNAL_ERROR );
}
return Lcb;
}
//
// Capture the separate cases.
//
TreeRoot = &ParentFcb->IgnoreCaseRoot;
//
// Set up the filename in the Lcb.
//
RtlDowncaseUnicodeString(&(Lcb->IgnoreCaseFileName),
Name,
FALSE);
if(!xixfs_NLInsertNameLinkIgnoreCase( IrpContext,
TreeRoot,
Lcb )){
XifsdRaiseStatus( IrpContext, STATUS_DRIVER_INTERNAL_ERROR );
}
XIXCORE_SET_FLAGS(Lcb->LCBFlags, XIFSD_LCB_STATE_IGNORE_CASE_SET);
//
// Link the Fcbs together through the Lcb.
//
Lcb->ParentFcb = ParentFcb;
Lcb->ChildFcb = Fcb;
InsertHeadList( &ParentFcb->ChildLcbQueue, &Lcb->ParentFcbLinks );
InsertHeadList( &Fcb->ParentLcbQueue, &Lcb->ChildFcbLinks );
//
// Initialize the reference count.
//
Lcb->Reference = 0;
//DbgPrint(" !!!Insert LCB FileName(%wZ) IgnoreFileName(%wZ) .\n", &Lcb->FileName, &Lcb->IgnoreCaseFileName);
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CREATE|DEBUG_TARGET_CLOSE| DEBUG_TARGET_FCB),
("Exit xixfs_FCBTLBInsertPrefix \n" ));
return Lcb;
}
PXIXFS_LCB
xixfs_FCBTLBFindPrefix (
IN PXIXFS_IRPCONTEXT IrpContext,
IN OUT PXIXFS_FCB *CurrentFcb,
IN OUT PUNICODE_STRING RemainingName,
IN BOOLEAN bIgnoreCase
)
{
UNICODE_STRING LocalRemainingName;
UNICODE_STRING FinalName;
PXIXFS_LCB NameLink;
PXIXFS_LCB CurrentLcb = NULL;
BOOLEAN Waitable = FALSE;
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CREATE|DEBUG_TARGET_CLOSE| DEBUG_TARGET_FCB),
("Enter xixfs_FCBTLBFindPrefix \n" ));
//
// Check inputs.
//
ASSERT_IRPCONTEXT( IrpContext );
ASSERT_FCB( *CurrentFcb );
ASSERT_EXCLUSIVE_FCB( *CurrentFcb );
Waitable = XIXCORE_TEST_FLAGS(IrpContext->IrpContextFlags, XIFSD_IRP_CONTEXT_WAIT);
try{
//
// Make a local copy of the input strings.
//
LocalRemainingName = *RemainingName;
//
// Loop until we find the longest matching prefix.
//
while (TRUE) {
//
// If there are no characters left or we are not at an IndexFcb then
// return immediately.
//
if ((LocalRemainingName.Length == 0) ||
(XifsSafeNodeType( *CurrentFcb ) != XIFS_NODE_FCB)) {
try_return(TRUE);
// return CurrentLcb;
}
if((*CurrentFcb)->XixcoreFcb.FCBType != FCB_TYPE_DIR){
try_return(TRUE);
//return CurrentLcb;
}
//
// Split off the next component from the name.
//
FsRtlDissectName( LocalRemainingName,
&FinalName,
&LocalRemainingName);
//
// Check if this name is in the splay tree for this Fcb.
//
if(bIgnoreCase){
NameLink = xixfs_NLFindNameLinkIgnoreCase( IrpContext,
&(*CurrentFcb)->IgnoreCaseRoot,
&FinalName );
}else{
NameLink = xixfs_NLFindNameLink( IrpContext,
&(*CurrentFcb)->Root,
&FinalName );
}
//
// If we didn't find a match then exit.
//
if (NameLink == NULL) {
break;
}
//
//
//
//if ( XIXCORE_TEST_FLAGS(NameLink->LCBFlags,
// (XIFSD_LCB_STATE_LINK_IS_GONE)) )
//{
// break;
//}
CurrentLcb = NameLink;
//
// Update the caller's remaining name string to reflect the fact that we found
// a match.
//
*RemainingName = LocalRemainingName;
//
// Move down to the next component in the tree. Acquire without waiting.
// If this fails then lock the Fcb to reference this Fcb and then drop
// the parent and acquire the child.
//
ASSERT( NameLink->ParentFcb == *CurrentFcb );
if (!XifsdAcquireFcbExclusive( Waitable, NameLink->ChildFcb, FALSE ))
{
//
// If we can't wait then raise CANT_WAIT.
//
if ( Waitable) {
XifsdRaiseStatus( IrpContext, STATUS_CANT_WAIT );
}
XifsdLockVcb( IrpContext, IrpContext->VCB );
NameLink->ChildFcb->FCBReference += 1;
NameLink->Reference += 1;
XifsdUnlockVcb( IrpContext, IrpContext->VCB );
XifsdReleaseFcb( IrpContext, *CurrentFcb );
XifsdAcquireFcbExclusive( Waitable, NameLink->ChildFcb, FALSE );
XifsdLockVcb( IrpContext, IrpContext->VCB );
NameLink->ChildFcb->FCBReference -= 1;
NameLink->Reference -= 1;
XifsdUnlockVcb( IrpContext, IrpContext->VCB );
} else {
XifsdReleaseFcb( IrpContext, *CurrentFcb );
}
*CurrentFcb = NameLink->ChildFcb;
}
}finally{
if(AbnormalTermination()){
ExRaiseStatus(STATUS_CANT_WAIT);
}
}
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CREATE|DEBUG_TARGET_CLOSE| DEBUG_TARGET_FCB),
("Exit xixfs_FCBTLBFindPrefix \n" ));
return CurrentLcb;
}
NTSTATUS
xixfs_FlusVolume(
IN PXIXFS_IRPCONTEXT IrpContext,
IN PXIXFS_VCB pVCB
)
{
PVOID RestartKey = NULL;
PXIXFS_FCB ThisFcb = NULL;
PXIXFS_FCB NextFcb = NULL;
BOOLEAN RemovedFcb = FALSE;
BOOLEAN CanWait = FALSE;
uint32 lockedVcbValue = 0;
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Enter xixfs_FlusVolume\n"));
ASSERT_EXCLUSIVE_VCB(pVCB);
CanWait = XIXCORE_TEST_FLAGS(IrpContext->IrpContextFlags, XIFSD_IRP_CONTEXT_WAIT);
xixfs_RealCloseFCB(pVCB);
while (TRUE) {
XifsdLockVcb( IrpContext, pVCB );
NextFcb = xixfs_FCBTLBGetNextEntry(pVCB, &RestartKey );
//
// Reference the NextFcb if present.
//
if (NextFcb != NULL) {
NextFcb->FCBReference += 1;
}
//
// If the last Fcb is present then decrement reference count and call teardown
// to see if it should be removed.
//
if (ThisFcb != NULL) {
ThisFcb->FCBReference -= 1;
XifsdUnlockVcb( IrpContext, pVCB );
} else {
XifsdUnlockVcb( IrpContext, pVCB );
}
//
// Break out of the loop if no more Fcb's.
//
if (NextFcb == NULL) {
break;
}
//
// Move to the next Fcb.
//
ThisFcb = NextFcb;
//
// If there is a image section then see if that can be closed.
//
if(ThisFcb->XixcoreFcb.FCBType == FCB_TYPE_FILE){
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("XifsdPurgeVolume FCB(%I64d) \n",
ThisFcb->XixcoreFcb.LotNumber));
XifsdAcquireFcbExclusive(TRUE, ThisFcb, FALSE);
//ExAcquireResourceShared(ThisFcb->PagingIoResource, TRUE);
if(XIXCORE_TEST_FLAGS(ThisFcb->XixcoreFcb.FCBFlags, XIXCORE_FCB_CACHED_FILE)){
// Added by ILGU HONG for readonly 09052006
if(!ThisFcb->PtrVCB->XixcoreVcb.IsVolumeWriteProtected){
CcFlushCache(&ThisFcb->SectionObject, NULL, 0, NULL);
}
// Added by ILGU HONG for readonly end
}
//ExReleaseResource(ThisFcb->PagingIoResource);
XifsdReleaseFcb(TRUE, ThisFcb);
}
}
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Exit xixfs_FlusVolume\n"));
return STATUS_SUCCESS;
}
ssize_t
xixfs_file_writev(
struct file *file,
const struct iovec *iov,
unsigned long nr_segs,
loff_t *ppos
)
{
ssize_t RC = 0;
int64 index = 0;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_writev (%s).\n", file->f_dentry->d_name.name));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_file_writev : is read only .\n"));
return -EPERM;
}
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
index =(int64) (*ppos);
RC = generic_file_writev(file, iov, nr_segs, ppos);
if(RC > 0 ) {
if(pFCB->XixcoreFcb.WriteStartOffset == -1) {
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
if(pFCB->XixcoreFcb.WriteStartOffset > index ){
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_writev (%d).\n", RC));
return RC;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_writev ERROR.\n"));
return -EPERM;
}
int
xixfs_sync_inode(struct inode *inode)
{
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = 0, /* sys_fsync did this */
};
return sync_inode(inode, &wbc);
}
#endif
int
xixfs_sync_file(
struct file *file,
struct dentry *dentry,
int datasync
)
{
struct inode *inode = dentry->d_inode;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
int err = 0;
int ret = 0;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_sync_file (%s).\n", file->f_dentry->d_name.name));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_sync_file : is read only .\n"));
return -EPERM;
}
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
#if LINUX_VERSION_25_ABOVE
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return ret;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return ret;
xixfs_sync_inode(inode);
#endif
if(XIXCORE_TEST_FLAGS(pFCB->XixcoreFcb.FCBFlags,XIXCORE_FCB_MODIFIED_FILE)){
#if LINUX_VERSION_25_ABOVE
err = xixfs_write_inode(inode, 1);
#else
xixfs_write_inode(inode, 1);
#endif
if(pFCB->XixcoreFcb.WriteStartOffset != -1){
printk(KERN_DEBUG "Set Update Information!!!\n");
xixfs_SendFileChangeRC(
pVCB->XixcoreVcb.HostMac,
pFCB->XixcoreFcb.LotNumber,
pVCB->XixcoreVcb.VolumeId,
i_size_read(inode),
pFCB->XixcoreFcb.RealAllocationSize,
pFCB->XixcoreFcb.WriteStartOffset
);
pFCB->XixcoreFcb.WriteStartOffset = -1;
}
if (ret == 0)
ret = err;
return ret;
}
}else {
return -EPERM;
}
return ret;
}
#if LINUX_VERSION_25_ABOVE
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
ssize_t
xixfs_file_splice_read(
struct file *in,
loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len,
unsigned int flags
)
{
return generic_file_splice_read(in, ppos, pipe, len, flags);
}
ssize_t
xixfs_file_splice_write(
struct pipe_inode_info *pipe,
struct file *out,
loff_t *ppos,
size_t len,
unsigned int flags
)
{
ssize_t RC = 0;
int64 index = 0;
struct address_space *mapping = out->f_mapping;
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_splice_write (%s).\n", out->f_dentry->d_name.name));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_file_splice_write : is read only .\n"));
return -EPERM;
}
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
index =(int64) (*ppos);
RC = generic_file_splice_write(pipe, out, ppos, len, flags);
if(RC > 0 ) {
if(pFCB->XixcoreFcb.WriteStartOffset == -1) {
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
if(pFCB->XixcoreFcb.WriteStartOffset > index ){
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_writev (%d).\n", RC));
return RC;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_writev ERROR.\n"));
return -EPERM;
}
ssize_t
xixfs_file_aio_write(
struct kiocb *iocb,
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
const struct iovec *iov,
unsigned long count,
#else
const char __user *buf,
size_t count,
#endif
loff_t pos
)
{
ssize_t RC = 0;
int64 index = 0;
struct address_space *mapping = iocb->ki_filp->f_mapping;
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_aio_write .\n"));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_file_aio_write : is read only .\n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
if( pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
index =(int64) pos;
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
RC = generic_file_aio_write(iocb, iov, count, pos);
#else
RC = generic_file_aio_write(iocb, buf, count, pos);
#endif
if(RC > 0) {
if(pFCB->XixcoreFcb.WriteStartOffset == -1) {
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
if(pFCB->XixcoreFcb.WriteStartOffset > index ){
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
return RC;
}
} else {
return -EPERM;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_aio_write .\n"));
return RC;
}
NTSTATUS
xixfs_CommonClose(
IN PXIXFS_IRPCONTEXT pIrpContext
)
{
NTSTATUS RC = STATUS_SUCCESS;
PXIXFS_FCB pFCB = NULL;
PXIXFS_CCB pCCB = NULL;
PXIXFS_VCB pVCB = NULL;
PFILE_OBJECT pFileObject = NULL;
PIRP pIrp = NULL;
PIO_STACK_LOCATION pIrpSp = NULL;
BOOLEAN OpenVCB = FALSE;
BOOLEAN PotentialVCBUnmount = FALSE;
BOOLEAN CanWait = FALSE;
BOOLEAN ForceDismount = FALSE;
BOOLEAN bUserReference = FALSE;
TYPE_OF_OPEN TypeOfOpen = UnopenedFileObject;
BOOLEAN bVcbAcq = FALSE;
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_IRPCONTEXT),
("Enter xixfs_CommonClose IrpContext(%p)\n", pIrpContext));
ASSERT_IRPCONTEXT(pIrpContext);
pIrp = pIrpContext->Irp;
ASSERT(pIrp);
// check if open request is releated to file system CDO
{
PDEVICE_OBJECT DeviceObject = pIrpContext->TargetDeviceObject;
ASSERT(DeviceObject);
if (DeviceObject == XiGlobalData.XifsControlDeviceObject) {
RC = STATUS_SUCCESS;
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_IRPCONTEXT),
("CDO Device Close DevObj(%p).\n", DeviceObject));
xixfs_CompleteRequest(pIrpContext,RC,0);
return(RC);
}
}
if(pIrpContext->VCB == NULL) {
DebugTrace(DEBUG_LEVEL_INFO, DEBUG_TARGET_CLOSE,
("pIrpContext->VCB == NULL.\n"));
RC = STATUS_SUCCESS;
xixfs_CompleteRequest(pIrpContext, RC, 0);
return RC;
}
CanWait = XIXCORE_TEST_FLAGS(pIrpContext->IrpContextFlags, XIFSD_IRP_CONTEXT_WAIT);
pIrpSp = IoGetCurrentIrpStackLocation(pIrp);
ASSERT(pIrpSp);
pFileObject = pIrpSp->FileObject;
ASSERT(pFileObject);
TypeOfOpen = xixfs_DecodeFileObject(pFileObject, &pFCB, &pCCB);
if(TypeOfOpen == UnopenedFileObject) {
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_IRPCONTEXT),
("TypeOfOpen <= StreamFileOpen.\n"));
xixfs_CompleteRequest(pIrpContext, STATUS_SUCCESS, 0);
return STATUS_SUCCESS;
}
if(TypeOfOpen == UserVolumeOpen) {
ForceDismount = XIXCORE_TEST_FLAGS( pCCB->CCBFlags, XIXFSD_CCB_DISMOUNT_ON_CLOSE);
if(ForceDismount) {
if(!CanWait) {
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_IRPCONTEXT),
("Force Dismount with Non Waitable Context.\n"));
RC = xixfs_PostRequest(pIrpContext, pIrp);
return RC;
}
}
}
DebugTrace(DEBUG_LEVEL_CRITICAL, DEBUG_TARGET_ALL,
("!!!!Close pCCB(%p) FileObject(%p)\n", pCCB, pFileObject));
ASSERT_FCB(pFCB);
pVCB = pFCB->PtrVCB;
ASSERT_VCB(pVCB);
if( (pVCB->VCBCleanup == 0)
&& (pVCB->VCBState != XIFSD_VCB_STATE_VOLUME_MOUNTED) )
{
if(!CanWait) {
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_IRPCONTEXT),
("Force Dismount with Non Waitable Context.\n"));
RC = xixfs_PostRequest(pIrpContext, pIrp);
return RC;
}
}
//
// Clean up any CCB associated with this open.
//
try {
if( ((TypeOfOpen == UserDirectoryOpen) || (TypeOfOpen == UserFileOpen) || (TypeOfOpen == UserVolumeOpen))
&& (pCCB != NULL)
) {
bUserReference = TRUE;
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_CLOSE|DEBUG_TARGET_CCB),
("XifsdCommonClose Delete CCB (%x)\n", pCCB));
// Test
//XifsdLockFcb(NULL, pFCB);
//RemoveEntryList(&pCCB->LinkToFCB);
//XifsdUnlockFcb(NULL, pFCB);
xixfs_FreeCCB( pCCB );
}
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_CLOSE|DEBUG_TARGET_REFCOUNT|DEBUG_TARGET_FCB|DEBUG_TARGET_VCB),
("XifsdCommonClose GenINFO Fcb LotNumber(%I64d) TypeOfOpen (%ld) Fcb %d/%d Vcb %d/%d \n",
pFCB->XixcoreFcb.LotNumber,
TypeOfOpen,
pFCB->FCBReference,
pFCB->FCBUserReference,
pVCB->VCBReference,
pVCB->VCBUserReference));
/*
if(CanWait){
if(TypeOfOpen == UserFileOpen){
if(pFCB->FCBCleanup == 0){
if(pFCB->SectionObject.DataSectionObject != NULL)
{
CcFlushCache(&(pFCB->SectionObject), NULL, 0, NULL);
CcPurgeCacheSection( &(pFCB->SectionObject),
NULL,
0,
FALSE
);
}
if(XIXCORE_TEST_FLAGS(pFCB->FCBFlags,XIXCORE_FCB_MODIFIED_FILE)){
xixfs_LastUpdateFileFromFCB(pFCB);
}
}
}
}
*/
if((pVCB->VCBState == XIFSD_VCB_STATE_VOLUME_MOUNTED)
&& ((TypeOfOpen == UserFileOpen) || (TypeOfOpen == UserDirectoryOpen))
&& (pFCB != pVCB->RootDirFCB))
{
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_CLOSE|DEBUG_TARGET_FCB),
("XifsdCommonClose Destroy FCB (%x)\n", pFCB));
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_CLOSE|DEBUG_TARGET_REFCOUNT|DEBUG_TARGET_FCB|DEBUG_TARGET_VCB),
("XifsdCommonClose, Fcb %08x Vcb %d/%d Fcb %d/%d\n", pFCB,
pVCB->VCBReference,
pVCB->VCBUserReference,
pFCB->FCBReference,
pFCB->FCBUserReference ));
xixfs_TryClose(CanWait, bUserReference, pFCB);
RC = STATUS_SUCCESS;
try_return(RC);
} else {
if( ((pVCB->VCBCleanup == 0) || ForceDismount)
&& (pVCB->VCBState != XIFSD_VCB_STATE_VOLUME_MOUNTED))
{
if(ForceDismount) {
FsRtlNotifyVolumeEvent(pFileObject, FSRTL_VOLUME_DISMOUNT);
}
if( ((pVCB->VCBCleanup == 0) || ForceDismount)
&& (pVCB->VCBState != XIFSD_VCB_STATE_VOLUME_MOUNTED))
{
PotentialVCBUnmount = TRUE;
if(bVcbAcq)XifsdReleaseVcb(TRUE,pVCB);
XifsdAcquireGData(pIrpContext);
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_RESOURCE),
("XifsdCommonClose Acquire exclusive GData(%p)\n", &XiGlobalData.DataResource));
bVcbAcq = XifsdAcquireVcbExclusive(TRUE,pVCB, FALSE);
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_VCB|DEBUG_TARGET_RESOURCE),
("XifsdCommonClose Acquire exclusive VCBResource(%p)\n", pVCB->VCBResource));
}
}
if(PotentialVCBUnmount && bVcbAcq) {
if(!xixfs_CheckForDismount(pIrpContext, pVCB, TRUE)) {
bVcbAcq = FALSE;
RC = STATUS_SUCCESS;
try_return(RC);
}
}
RC = xixfs_TryClose(CanWait, bUserReference, pFCB);
if(NT_SUCCESS(RC)) {
if(PotentialVCBUnmount && bVcbAcq) {
if(!xixfs_CheckForDismount(pIrpContext, pVCB, FALSE)) {
bVcbAcq = FALSE;
RC = STATUS_SUCCESS;
try_return(RC);
}
}
}
RC = STATUS_SUCCESS;
}
;
}
finally{
if(bVcbAcq) {
XifsdReleaseVcb(TRUE, pVCB);
}
if(PotentialVCBUnmount) {
XifsdReleaseGData(pIrpContext);
PotentialVCBUnmount = FALSE;
}
}
xixfs_CompleteRequest(pIrpContext, RC, 0);
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_CLOSE| DEBUG_TARGET_IRPCONTEXT),
("Exit xixfs_CommonClose \n"));
return RC;
}
NTSTATUS
xixfs_PurgeVolume(
IN PXIXFS_IRPCONTEXT IrpContext,
IN PXIXFS_VCB pVCB,
IN BOOLEAN DismountForce
)
{
NTSTATUS Status = STATUS_SUCCESS;
PVOID RestartKey = NULL;
PXIXFS_FCB ThisFcb = NULL;
PXIXFS_FCB NextFcb = NULL;
BOOLEAN RemovedFcb = FALSE;
BOOLEAN CanWait = FALSE;
uint32 lockedVcbValue = 0;
PAGED_CODE();
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Enter xixfs_PurgeVolume\n"));
ASSERT_EXCLUSIVE_VCB(pVCB);
CanWait = XIXCORE_TEST_FLAGS(IrpContext->IrpContextFlags, XIFSD_IRP_CONTEXT_WAIT);
//
// Force any remaining Fcb's in the delayed close queue to be closed.
//
xixfs_RealCloseFCB(pVCB);
//
// Acquire the global file resource.
//
//XifsdAcquireAllFiles( CanWait, pVCB );
//
// Loop through each Fcb in the Fcb Table and perform the flush.
//
while (TRUE) {
//
// Lock the Vcb to lookup the next Fcb.
//
XifsdLockVcb( IrpContext, pVCB );
NextFcb = xixfs_FCBTLBGetNextEntry(pVCB, &RestartKey );
//
// Reference the NextFcb if present.
//
if (NextFcb != NULL) {
NextFcb->FCBReference += 1;
}
//
// If the last Fcb is present then decrement reference count and call teardown
// to see if it should be removed.
//
if (ThisFcb != NULL) {
ThisFcb->FCBReference -= 1;
XifsdUnlockVcb( IrpContext, pVCB );
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_PNP|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO|DEBUG_TARGET_REFCOUNT),
("XifsdPurgeVolume FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->XixcoreFcb.LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
DebugTrace(DEBUG_LEVEL_CRITICAL, DEBUG_TARGET_PNP|DEBUG_TARGET_FCB|DEBUG_TARGET_VCB|DEBUG_TARGET_REFCOUNT,
("XifsdPurgeVolume FCBLotNumber(%I64d) FCBCleanUp(%ld) VCBCleanup(%ld)\n",
ThisFcb->XixcoreFcb.LotNumber,
ThisFcb->FCBCleanup,
pVCB->VCBCleanup));
xixfs_TeardownStructures( CanWait, ThisFcb, FALSE, &RemovedFcb );
} else {
XifsdUnlockVcb( IrpContext, pVCB );
}
//
// Break out of the loop if no more Fcb's.
//
if (NextFcb == NULL) {
break;
}
//
// Move to the next Fcb.
//
ThisFcb = NextFcb;
//
// If there is a image section then see if that can be closed.
//
if(ThisFcb->XixcoreFcb.FCBType == FCB_TYPE_FILE){
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("XifsdPurgeVolume FCB(%I64d) \n",
ThisFcb->XixcoreFcb.LotNumber));
XifsdAcquireFcbExclusive(TRUE, ThisFcb, FALSE);
// Added by ILGU HONG for readonly 09052006
if(!ThisFcb->PtrVCB->XixcoreVcb.IsVolumeWriteProtected){
if (ThisFcb->SectionObject.ImageSectionObject != NULL) {
MmFlushImageSection( &ThisFcb->SectionObject, MmFlushForWrite );
}
//
// If there is a data section then purge this. If there is an image
// section then we won't be able to. Remember this if it is our first
// error.
//
CcFlushCache(&ThisFcb->SectionObject, NULL, 0, NULL);
//DbgPrint("CcFlush 3 File(%wZ)\n", &ThisFcb->FCBFullPath);
}
// Added by ILGU HONG for readonly end
ExAcquireResourceSharedLite(ThisFcb->PagingIoResource, TRUE);
ExReleaseResourceLite( ThisFcb->PagingIoResource );
if ((ThisFcb->SectionObject.DataSectionObject != NULL) &&
!CcPurgeCacheSection( &ThisFcb->SectionObject,
NULL,
0,
FALSE ) &&
(Status == STATUS_SUCCESS)) {
Status = STATUS_UNABLE_TO_DELETE_SECTION;
}
XifsdReleaseFcb(TRUE, ThisFcb);
}
//
// Dereference the internal stream if dismounting.
//
if (DismountForce &&
(ThisFcb->XixcoreFcb.FCBType != FCB_TYPE_FILE) &&
(ThisFcb->XixcoreFcb.FCBType != FCB_TYPE_DIR) &&
(ThisFcb->FileObject != NULL)) {
xixfs_DeleteInternalStream( CanWait, ThisFcb );
}
}
//
// Now look at the Root Index, Metadata, Volume Dasd and VAT Fcbs.
// Note that we usually hit the Root Index in the loop above, but
// it is possible miss it if it didn't get into the Fcb table in the
// first place!
//
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("xixfs_PurgeVolume DismountFore (%s)\n", ((DismountForce)?"TRUE":"FALSE")));
if (DismountForce) {
if (pVCB->RootDirFCB != NULL) {
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Deal with RootFCB \n"));
ThisFcb = pVCB->RootDirFCB;
InterlockedIncrement( &ThisFcb->FCBReference );
if ((ThisFcb->SectionObject.DataSectionObject != NULL) &&
!CcPurgeCacheSection( &ThisFcb->SectionObject,
NULL,
0,
FALSE ) &&
(Status == STATUS_SUCCESS)) {
Status = STATUS_UNABLE_TO_DELETE_SECTION;
}
InterlockedDecrement( &ThisFcb->FCBReference );
/*
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("pVCB->RootDirFCB FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
XifsdLockVcb(IrpContext, pVCB);
XifsdDecRefCount(ThisFcb, 1, 1);
XifsdUnlockVcb(IrpContext, pVCB);
*/
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("pVCB->RootDirFCB FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->XixcoreFcb.LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
xixfs_TeardownStructures( CanWait, ThisFcb, FALSE, &RemovedFcb );
}
if (pVCB->MetaFCB != NULL) {
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Deal with pVCB->MetaFCB \n"));
ThisFcb = pVCB->MetaFCB;
InterlockedIncrement( &ThisFcb->FCBReference );
if ((ThisFcb->SectionObject.DataSectionObject != NULL) &&
!CcPurgeCacheSection( &ThisFcb->SectionObject,
NULL,
0,
FALSE ) &&
(Status == STATUS_SUCCESS)) {
Status = STATUS_UNABLE_TO_DELETE_SECTION;
}
xixfs_DeleteInternalStream( CanWait, ThisFcb );
InterlockedDecrement( &ThisFcb->FCBReference );
/*
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("pVCB->MetaFCB FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
XifsdLockVcb(IrpContext, pVCB);
XifsdDecRefCount(ThisFcb, 1, 1);
XifsdUnlockVcb(IrpContext, pVCB);
*/
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("pVCB->MetaFCB FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->XixcoreFcb.LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
xixfs_TeardownStructures( CanWait, ThisFcb, FALSE, &RemovedFcb );
}
if (pVCB->VolumeDasdFCB != NULL) {
DebugTrace(DEBUG_LEVEL_INFO, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Deal with pVCB->VolumeDasdFCB \n"));
ThisFcb = pVCB->VolumeDasdFCB;
InterlockedIncrement( &ThisFcb->FCBReference );
if ((ThisFcb->SectionObject.DataSectionObject != NULL) &&
!CcPurgeCacheSection( &ThisFcb->SectionObject,
NULL,
0,
FALSE ) &&
(Status == STATUS_SUCCESS)) {
Status = STATUS_UNABLE_TO_DELETE_SECTION;
}
xixfs_DeleteInternalStream( CanWait, ThisFcb );
InterlockedDecrement( &ThisFcb->FCBReference );
/*
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("pVCB->VolumeDasdFCB FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
XifsdLockVcb(IrpContext, pVCB);
XifsdDecRefCount(ThisFcb, 1, 1);
XifsdUnlockVcb(IrpContext, pVCB);
*/
DebugTrace(DEBUG_LEVEL_CRITICAL, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("pVCB->VolumeDasdFCB FCB(%I64d) VCB %d/%d FCB %d/%d\n",
ThisFcb->XixcoreFcb.LotNumber,
pVCB->VCBReference,
pVCB->VCBUserReference,
ThisFcb->FCBReference,
ThisFcb->FCBUserReference ));
xixfs_TeardownStructures( CanWait, ThisFcb, FALSE, &RemovedFcb );
}
}
//
// Release all of the files.
//
//XifsdReleaseAllFiles( CanWait, pVCB );
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_DIRINFO|DEBUG_TARGET_FCB|DEBUG_TARGET_FILEINFO),
("Exit xixfs_PurgeVolume\n"));
return Status;
}
int
xixfs_ResourceThreadFunction(
void *lpParameter
)
{
PXIXFS_LINUX_VCB pVCB = NULL;
PXIXFS_LINUX_META_CTX pCtx = NULL;
PXIXCORE_META_CTX xixcoreCtx = NULL;
int RC =0;
#if LINUX_VERSION_25_ABOVE
int TimeOut;
#endif
unsigned long flags;
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO ),
("Enter xixfs_ResourceThreadFunction .\n"));
#if defined(NDAS_ORG2423) || defined(NDAS_SIGPENDING_OLD)
spin_lock_irqsave(¤t->sigmask_lock, flags);
siginitsetinv(¤t->blocked, sigmask(SIGKILL)|sigmask(SIGTERM));
recalc_sigpending(current);
spin_unlock_irqrestore(¤t->sigmask_lock, flags);
#else
spin_lock_irqsave(¤t->sighand->siglock, flags);
siginitsetinv(¤t->blocked, sigmask(SIGKILL)|sigmask(SIGTERM));
recalc_sigpending();
spin_unlock_irqrestore(¤t->sighand->siglock, flags);
#endif
#if LINUX_VERSION_25_ABOVE
daemonize("XixMetaThread");
#else
daemonize();
#endif
pCtx = (PXIXFS_LINUX_META_CTX)lpParameter;
XIXCORE_ASSERT(pCtx);
pVCB = pCtx->VCBCtx;
XIXFS_ASSERT_VCB(pVCB);
xixcoreCtx = &pVCB->XixcoreVcb.MetaContext;
while(1){
if(signal_pending(current)) {
flush_signals(current);
}
#if LINUX_VERSION_25_ABOVE
TimeOut = DEFAULT_XIXFS_UPDATEWAIT;
RC = wait_event_timeout(pCtx->VCBMetaEvent,
XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_MASK),
TimeOut);
#else
mod_timer(&(pCtx->VCBMetaTimeOut), jiffies+ 180*HZ);
wait_event(pCtx->VCBMetaEvent,
XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_MASK));
#endif
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO ),
("!!!!! Wake up HELLOE ResourceThreadFunction .\n"));
//printk(KERN_DEBUG "!!!!! Wake UP HELLOE ResourceThreadFunction .\n");
spin_lock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_lock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
#if LINUX_VERSION_25_ABOVE
if(RC == 0 ) {
#else
if(XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_TIMEOUT)) {
XIXCORE_CLEAR_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_TIMEOUT);
#endif
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("Request Call timeout : xixfs_ResourceThreadFunction .\n"));
spin_unlock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_unlock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
if(XIXCORE_TEST_FLAGS(xixcoreCtx->ResourceFlag, XIXCORE_META_RESOURCE_NEED_UPDATE)){
XIXCORE_CLEAR_FLAGS(xixcoreCtx->ResourceFlag, XIXCORE_META_RESOURCE_NEED_UPDATE);
RC = xixfs_UpdateMetaData(pCtx);
if( RC <0 ) {
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("fail(0x%x) xixfs_ResourceThreadFunction --> xixfs_UpdateMetaData .\n", RC));
}
}
#if LINUX_VERSION_25_ABOVE
continue;
}else if(XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_UPDATE)) {
#else
}
if(XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_UPDATE)) {
#endif
XIXCORE_CLEAR_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_UPDATE);
spin_unlock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_unlock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
if(XIXCORE_TEST_FLAGS(xixcoreCtx->ResourceFlag, XIXCORE_META_RESOURCE_NEED_UPDATE)){
XIXCORE_CLEAR_FLAGS(xixcoreCtx->ResourceFlag, XIXCORE_META_RESOURCE_NEED_UPDATE);
RC = xixfs_UpdateMetaData(pCtx);
if( RC <0 ) {
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("fail(0x%x) xixfs_ResourceThreadFunction --> xixfs_UpdateMetaData .\n", RC));
}
}
xixfs_wakeup_resource_waiter(pCtx);
continue;
}else if(XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_KILL_THREAD)) {
XIXCORE_CLEAR_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_RECHECK_RESOURCES);
XIXCORE_SET_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_INSUFFICIENT_RESOURCES);
spin_unlock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_unlock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("Stop Thread : xixfs_ResourceThreadFunction .\n"));
xixfs_wakeup_resource_waiter(pCtx);
#if LINUX_VERSION_25_ABOVE
complete_all(&(pCtx->VCBMetaThreadStopCompletion));
#else
del_timer(&(pCtx->VCBMetaTimeOut));
xixfs_wakeup_metaThread_stop_waiter(pCtx);
#endif
break;
}else if( XIXCORE_TEST_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_RECHECK_RESOURCES)){
spin_unlock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_unlock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("get more resource : xixfs_ResourceThreadFunction .\n"));
RC = xixfs_GetMoreCheckOutLotMap(pCtx);
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("End xixfs_GetMoreCheckOutLotMap .\n"));
if( RC <0 ) {
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("fail(0x%x) xixfs_ResourceThreadFunction --> xixfs_GetMoreCheckOutLotMap .\n", RC));
}else {
spin_lock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_lock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
XIXCORE_CLEAR_FLAGS(xixcoreCtx->VCBMetaFlags, XIXCORE_META_FLAGS_RECHECK_RESOURCES);
spin_unlock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_unlock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("WAKE UP WAITING THREAD!! .\n"));
xixfs_wakeup_resource_waiter(pCtx);
}
continue;
}else {
DebugTrace(DEBUG_LEVEL_ALL, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO |DEBUG_TARGET_ALL),
("Request Call Unrecognized : xixfs_ResourceThreadFunction .\n"));
spin_unlock(&(pCtx->MetaLock));
//DebugTrace(DEBUG_LEVEL_TRACE, DEBUG_TARGET_CHECK,
// ("spin_unlock(&(pCtx->MetaLock)) pCtx(%p)\n", pCtx ));
}
}
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_FSCTL|DEBUG_TARGET_VOLINFO ),
("Exit xixfs_ResourceThreadFunction .\n"));
return 0;
}
ssize_t
xixfs_file_write(
struct file *file,
const char __user *buf,
size_t count,
loff_t *ppos
)
{
ssize_t RC = 0;
int64 index = 0;
#if LINUX_VERSION_25_ABOVE
struct address_space *mapping = file->f_mapping;
#else
struct address_space *mapping = file->f_dentry->d_inode->i_mapping;
#endif
struct inode *inode = mapping->host;
PXIXFS_LINUX_FCB pFCB = NULL;
PXIXFS_LINUX_VCB pVCB = NULL;
XIXCORE_ASSERT(inode);
pVCB = XIXFS_SB(inode->i_sb);
XIXFS_ASSERT_VCB(pVCB);
pFCB = XIXFS_I(inode);
XIXFS_ASSERT_FCB(pFCB);
DebugTrace(DEBUG_LEVEL_TRACE, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("ENTER xixfs_file_write (%s).\n", file->f_dentry->d_name.name));
if(pVCB->XixcoreVcb.IsVolumeWriteProtected){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR xixfs_file_write : is read only .\n"));
return -EPERM;
}
XIXCORE_ASSERT(pFCB->XixcoreFcb.FCBType == FCB_TYPE_FILE);
if(XIXCORE_TEST_FLAGS( pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_CHANGE_DELETED )){
DebugTrace(DEBUG_LEVEL_ERROR, DEBUG_TARGET_ALL,
("ERROR DELETED FILE \n"));
return -EPERM;
}
if( pFCB->XixcoreFcb.HasLock == INODE_FILE_LOCK_HAS) {
index =(int64) (*ppos);
#if LINUX_VERSION_2_6_19_REPLACE_INTERFACE
RC = do_sync_write(file, buf, count, ppos);
#else
RC = generic_file_write(file, buf, count, ppos);
#endif
if(RC > 0) {
if(pFCB->XixcoreFcb.WriteStartOffset == -1) {
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
if(pFCB->XixcoreFcb.WriteStartOffset > index ){
pFCB->XixcoreFcb.WriteStartOffset = index;
XIXCORE_SET_FLAGS(pFCB->XixcoreFcb.FCBFlags, XIXCORE_FCB_MODIFIED_FILE_SIZE);
}
}
return RC;
} else {
return -EPERM;
}
DebugTrace(DEBUG_LEVEL_ERROR, (DEBUG_TARGET_FCB|DEBUG_TARGET_VFSAPIT),
("EXIT xixfs_file_write .\n"));
return RC;
}
