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45 lines
1,004 B
C
45 lines
1,004 B
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: services/fs/minix/cache.c
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* PURPOSE: Minix FSD
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* PROGRAMMER: David Welch (welch@mcmail.com)
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* UPDATE HISTORY:
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*/
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/* INCLUDES *****************************************************************/
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#include <ntddk.h>
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#include <ntifs.h>
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//#define NDEBUG
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#include <debug.h>
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#include "minix.h"
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/* FUNCTIONS ****************************************************************/
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NTSTATUS MinixRequestCacheBlock(PDEVICE_OBJECT DeviceObject,
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PBCB Bcb,
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ULONG FileOffset,
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PVOID* BaseAddress,
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PCACHE_SEGMENT* CacheSeg)
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{
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BOOLEAN UptoDate;
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CcRosRequestCacheSegment(Bcb,
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FileOffset,
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BaseAddress,
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&UptoDate,
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CacheSeg);
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if (!UptoDate)
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{
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MinixReadPage(DeviceObject,
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PAGE_ROUND_DOWN(FileOffset),
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BaseAddress);
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}
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BaseAddress = BaseAddress + (FileOffset % PAGE_SIZE);
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return(STATUS_SUCCESS);
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}
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