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respecting FILE_WRITE_THROUGH flag on open

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This commit is contained in:
Olga Kornievskaia 2012-02-15 16:15:26 -05:00 • committed by unknown
parent 0285d46a26
commit 73294dff68
1 changed files with 11 additions and 5 deletions
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16
sys/nfs41_driver.c
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@ -417,6 +417,7 @@ typedef struct _NFS41_FOBX {
DWORD acl_len;
LARGE_INTEGER time;
DWORD deleg_type;
BOOLEAN write_thru;
} NFS41_FOBX, *PNFS41_FOBX;
#define NFS41GetFobxExtension(pFobx) \
(((pFobx) == NULL) ? NULL : (PNFS41_FOBX)((pFobx)->Context))
@ -3548,7 +3549,9 @@ NTSTATUS nfs41_Create(
SrvOpen->BufferingFlags |=
(FCB_STATE_WRITECACHING_ENABLED |
FCB_STATE_WRITEBUFFERING_ENABLED);
}
} else if (params.CreateOptions & FILE_WRITE_THROUGH ||
pVNetRootContext->write_thru)
nfs41_fobx->write_thru = TRUE;
if (entry->u.Open.deleg_type >= 1 ||
params.DesiredAccess & FILE_READ_DATA) {
#ifdef DEBUG_OPEN
@ -5147,10 +5150,12 @@ void enable_caching(
if (SrvOpen->DesiredAccess & FILE_READ_DATA)
flag = ENABLE_READ_CACHING;
if (SrvOpen->DesiredAccess & FILE_WRITE_DATA)
if ((SrvOpen->DesiredAccess & FILE_WRITE_DATA) &&
!nfs41_fobx->write_thru)
flag = ENABLE_WRITE_CACHING;
if ((SrvOpen->DesiredAccess & FILE_READ_DATA) &&
(SrvOpen->DesiredAccess & FILE_WRITE_DATA))
(SrvOpen->DesiredAccess & FILE_WRITE_DATA) &&
!nfs41_fobx->write_thru)
flag = ENABLE_READWRITE_CACHING;
#if defined(DEBUG_TIME_BASED_COHERENCY) || \
@ -5383,14 +5388,15 @@ NTSTATUS nfs41_Write(
nfs41_fcb->changeattr = entry->u.ReadWrite.ChangeTime;
//re-enable write buffering
if ((!BooleanFlagOn(LowIoContext->ParamsFor.ReadWrite.Flags,
if (!BooleanFlagOn(LowIoContext->ParamsFor.ReadWrite.Flags,
LOWIO_READWRITEFLAG_PAGING_IO) &&
(SrvOpen->DesiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA)) &&
!pVNetRootContext->write_thru &&
!pVNetRootContext->nocache &&
!nfs41_fobx->write_thru &&
!(SrvOpen->BufferingFlags &
(FCB_STATE_WRITEBUFFERING_ENABLED |
FCB_STATE_WRITECACHING_ENABLED)))) {
FCB_STATE_WRITECACHING_ENABLED))) {
enable_caching(SrvOpen, nfs41_fobx, nfs41_fcb->changeattr,
pVNetRootContext->session);
} else if (!nfs41_fobx->deleg_type)