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Changed the cache access from vfat...Region() to Cc...Data().

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svn path=/trunk/; revision=2285
This commit is contained in:
Hartmut Birr 2001-10-10 22:14:34 +00:00
parent a23989370d
commit 069a01eede
1 changed files with 21 additions and 53 deletions
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74
reactos/drivers/fs/vfat/direntry.c
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@ -1,4 +1,4 @@
/* $Id: direntry.c,v 1.4 2001/08/01 15:59:24 hbirr Exp $
/* $Id: direntry.c,v 1.5 2001/10/10 22:14:34 hbirr Exp $
*
*
* FILE: DirEntry.c
@ -83,14 +83,14 @@ vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
PWSTR pLongFileName,
PFAT_DIR_ENTRY pDirEntry)
{
NTSTATUS status;
ULONG indexInPage = *pDirectoryIndex % ENTRIES_PER_CACHEPAGE(pDeviceExt);
ULONG pageNumber = *pDirectoryIndex / ENTRIES_PER_CACHEPAGE(pDeviceExt);
PVOID currentPage = NULL;
PCACHE_SEGMENT cacheSegment = NULL;
FATDirEntry * fatDirEntry;
slot * longNameEntry;
ULONG cpos;
LARGE_INTEGER FileOffset;
PVOID Context;
DPRINT ("vfatGetNextDirEntry (%x,%x,%d,%x,%x)\n",
pDeviceExt,
@ -101,16 +101,11 @@ vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
*pLongFileName = 0;
DPRINT ("Validating current directory page\n");
status = vfatRequestAndValidateRegion (pDeviceExt,
pDirectoryFCB,
pageNumber * CACHEPAGESIZE(pDeviceExt),
(PVOID *) &currentPage,
&cacheSegment,
FALSE);
if (!NT_SUCCESS (status))
FileOffset.QuadPart = pageNumber * CACHEPAGESIZE(pDeviceExt);
if (!CcMapData(pDirectoryFCB->FileObject, &FileOffset,
CACHEPAGESIZE(pDeviceExt), TRUE, &Context, &currentPage))
{
return status;
return STATUS_UNSUCCESSFUL;
}
while (TRUE)
@ -120,9 +115,7 @@ vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
if (vfatIsDirEntryEndMarker (&fatDirEntry [indexInPage]))
{
DPRINT ("end of directory, returning no more entries\n");
status = vfatReleaseRegion (pDeviceExt,
pDirectoryFCB,
cacheSegment);
CcUnpinData(Context);
return STATUS_NO_MORE_ENTRIES;
}
else if (vfatIsDirEntryLongName (&fatDirEntry [indexInPage])
@ -155,22 +148,12 @@ vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
indexInPage = 0;
pageNumber++;
status = vfatReleaseRegion (pDeviceExt,
pDirectoryFCB,
cacheSegment);
if (!NT_SUCCESS (status))
CcUnpinData(Context);
FileOffset.QuadPart = pageNumber * CACHEPAGESIZE(pDeviceExt);
if (!CcMapData(pDirectoryFCB->FileObject, &FileOffset,
CACHEPAGESIZE(pDeviceExt), TRUE, &Context, &currentPage))
{
return status;
}
status = vfatRequestAndValidateRegion (pDeviceExt,
pDirectoryFCB,
pageNumber * CACHEPAGESIZE(pDeviceExt),
(PVOID *) &currentPage,
&cacheSegment,
FALSE);
if (!NT_SUCCESS (status))
{
return status;
return STATUS_UNSUCCESSFUL;
}
longNameEntry = (slot *) currentPage;
}
@ -197,22 +180,12 @@ vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
indexInPage = 0;
pageNumber++;
status = vfatReleaseRegion (pDeviceExt,
pDirectoryFCB,
cacheSegment);
if (!NT_SUCCESS (status))
{
return status;
}
status = vfatRequestAndValidateRegion (pDeviceExt,
pDirectoryFCB,
pageNumber * CACHEPAGESIZE(pDeviceExt),
(PVOID *) &currentPage,
&cacheSegment,
FALSE);
if (!NT_SUCCESS (status))
{
return status;
CcUnpinData(Context);
FileOffset.QuadPart = pageNumber * CACHEPAGESIZE(pDeviceExt);
if (!CcMapData(pDirectoryFCB->FileObject, &FileOffset,
CACHEPAGESIZE(pDeviceExt), TRUE, &Context, &currentPage))
{
return STATUS_UNSUCCESSFUL;
}
}
}
@ -223,13 +196,8 @@ vfatGetNextDirEntry (PDEVICE_EXTENSION pDeviceExt,
break;
}
}
DPRINT ("Releasing current directory page\n");
status = vfatReleaseRegion (pDeviceExt,
pDirectoryFCB,
cacheSegment);
return status;
CcUnpinData(Context);
return STATUS_SUCCESS;
}