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[driver] using InterlockedIncrement for open_owner_id

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This commit is contained in:
Olga Kornievskaia 2011-12-21 17:42:04 -05:00
parent 9efa410e5a
commit 62dfd87bda
3 changed files with 7 additions and 16 deletions
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17
sys/nfs41_driver.c
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@ -71,7 +71,7 @@ FAST_MUTEX xidLock;
FAST_MUTEX openOwnerLock;
LONGLONG xid = 0;
ULONG open_owner_id = 1;
LONG open_owner_id = 1;
#define DECLARE_CONST_ANSI_STRING(_var, _string) \
const CHAR _var ## _buffer[] = _string; \
@ -171,7 +171,7 @@ typedef struct _updowncall_entry {
ULONG copts;
ULONG disp;
ULONG cattrs;
ULONG open_owner_id;
LONG open_owner_id;
DWORD mode;
LONGLONG changeattr;
BOOLEAN symlink_embedded;
@ -420,15 +420,6 @@ nfs41_start_driver_state nfs41_start_state = NFS41_START_DRIVER_STARTABLE;
NTSTATUS map_readwrite_errors(DWORD status);
ULONG get_next_open_owner()
{
ULONG x;
ExAcquireFastMutex(&openOwnerLock);
x = open_owner_id++;
ExReleaseFastMutex(&openOwnerLock);
return x;
}
void print_debug_header(
PRX_CONTEXT RxContext)
{
@ -617,7 +608,7 @@ NTSTATUS marshal_nfs41_open(
else
tmp += *len;
header_len = *len + length_as_ansi(entry->u.Open.filename) +
6 * sizeof(ULONG) + sizeof(DWORD);
5 * sizeof(ULONG) + sizeof(LONG) + sizeof(DWORD);
if (header_len > buf_len) {
status = STATUS_INSUFFICIENT_RESOURCES;
goto out;
@ -3197,7 +3188,7 @@ NTSTATUS nfs41_Create(
entry->u.Open.disp = params.Disposition;
entry->u.Open.copts = params.CreateOptions;
if (isDataAccess(params.DesiredAccess))
entry->u.Open.open_owner_id = get_next_open_owner();
entry->u.Open.open_owner_id = InterlockedIncrement(&open_owner_id);
// if we are creating a file check if nfsv3attributes were passed in
if (params.Disposition != FILE_OPEN && params.Disposition != FILE_OVERWRITE) {
if (RxContext->CurrentIrp->AssociatedIrp.SystemBuffer) {