/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
- *
+ *
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
*/
+#include <afsconfig.h>
#include <afs/param.h>
+#include <roken.h>
+
#include <afs/afs_args.h>
#include <afs/stds.h>
afs_int32 cm_OfflineROIsValid = 0;
-afs_int32 cm_giveUpAllCBs = 0;
+afs_int32 cm_giveUpAllCBs = 1;
afs_int32 cm_shutdown = 0;
DWORD dummyLen;
/* why does this have to query the registry each time? */
- if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
+ if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
AFSREG_CLT_OPENAFS_SUBKEY,
0,
KEY_READ|KEY_QUERY_VALUE,
}
if (dwDelay > 5000) /* do not allow a delay of more then 5 seconds */
- dwDelay = 5000;
+ dwDelay = 5000;
osi_Log3(afsd_logp, "CallbackNotifyChange FileType %d Flags %lX Delay %dms",
scp->fileType, scp->flags, dwDelay);
smb_NotifyChange( 0,
FILE_NOTIFY_GENERIC_FILE_FILTER,
dscp, NULL, NULL, TRUE);
- if (dscp)
+ if (dscp)
cm_ReleaseSCache(dscp);
}
}
cm_fid_t tfid;
cm_scache_t *scp;
long hash;
-
+
tfid.cell = cellp ? cellp->cellID : 0;
tfid.volume = fidp->Volume;
tfid.vnode = fidp->Vnode;
tfid.unique = fidp->Unique;
+ CM_FID_GEN_HASH(&tfid);
hash = CM_SCACHE_HASH(&tfid);
osi_Log3(afsd_logp, "RevokeCallback vol %u vn %u uniq %u",
fidp->Volume, fidp->Vnode, fidp->Unique);
-
+
/* do this first, so that if we're executing a callback granting call
* at this moment, we kill it before it can be merged in. Otherwise,
* it could complete while we're doing the scan below, and get missed
{
cm_HoldSCacheNoLock(scp);
lock_ReleaseWrite(&cm_scacheLock);
- osi_Log4(afsd_logp, "RevokeCallback Discarding SCache scp 0x%p vol %u vn %u uniq %u",
+ osi_Log4(afsd_logp, "RevokeCallback Discarding SCache scp 0x%p vol %u vn %u uniq %u",
scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
lock_ObtainWrite(&scp->rw);
cm_DiscardSCache(scp);
lock_ReleaseWrite(&scp->rw);
+ if (RDR_Initialized)
+ RDR_InvalidateObject(scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique,
+ scp->fid.hash, scp->fileType, AFS_INVALIDATE_CALLBACK);
+
cm_CallbackNotifyChange(scp);
-
+
lock_ObtainWrite(&cm_scacheLock);
cm_ReleaseSCacheNoLock(scp);
}
fidp->Volume, fidp->Vnode, fidp->Unique);
}
+static __inline void
+cm_callbackDiscardROVolumeByFID(cm_fid_t *fidp)
+{
+ cm_volume_t *volp = cm_GetVolumeByFID(fidp);
+ if (volp) {
+ cm_PutVolume(volp);
+ if (volp->cbExpiresRO) {
+ volp->cbExpiresRO = 0;
+ volp->cbIssuedRO = 0;
+ if (volp->cbServerpRO) {
+ cm_PutServer(volp->cbServerpRO);
+ volp->cbServerpRO = NULL;
+ }
+ volp->creationDateRO = 0;
+ }
+ }
+}
+
/* called to revoke a volume callback, which is typically issued when a volume
* is moved from one server to another.
*
cm_scache_t *scp;
cm_fid_t tfid;
- osi_Log1(afsd_logp, "RevokeVolumeCallback vol %d", fidp->Volume);
+ osi_Log1(afsd_logp, "RevokeVolumeCallback vol %u", fidp->Volume);
/* do this first, so that if we're executing a callback granting call
* at this moment, we kill it before it can be merged in. Otherwise,
tfid.cell = cellp ? cellp->cellID : 0;
tfid.volume = fidp->Volume;
tfid.vnode = tfid.unique = 0;
-
cm_RecordRacingRevoke(&tfid, CM_RACINGFLAG_CANCELVOL);
lock_ObtainWrite(&cm_scacheLock);
lock_ReleaseWrite(&cm_scacheLock);
lock_ObtainWrite(&scp->rw);
- osi_Log4(afsd_logp, "RevokeVolumeCallback Discarding SCache scp 0x%p vol %u vn %u uniq %u",
- scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+ osi_Log5(afsd_logp, "RevokeVolumeCallback Discarding SCache scp 0x%p vol %u vn %u uniq %u",
+ scp, scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+ osi_Log2(afsd_logp, ".... dv 0x%x:%x",
+ (afs_uint32)((scp->dataVersion >> 32) & 0xFFFFFFFF),
+ (afs_uint32)(scp->dataVersion & 0xFFFFFFFF));
+
cm_DiscardSCache(scp);
lock_ReleaseWrite(&scp->rw);
+ if (RDR_Initialized)
+ RDR_InvalidateObject(scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique,
+ scp->fid.hash, scp->fileType, AFS_INVALIDATE_CALLBACK);
+
cm_CallbackNotifyChange(scp);
lock_ObtainWrite(&cm_scacheLock);
cm_ReleaseSCacheNoLock(scp);
- if (scp->flags & CM_SCACHEFLAG_PURERO) {
- cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
- if (volp) {
- volp->cbExpiresRO = 0;
- cm_PutVolume(volp);
- }
- }
+ if (scp->flags & CM_SCACHEFLAG_PURERO)
+ cm_callbackDiscardROVolumeByFID(&scp->fid);
}
} /* search one hash bucket */
} /* search all hash buckets */
lock_ReleaseWrite(&cm_scacheLock);
+ if (cellp && RDR_Initialized)
+ RDR_InvalidateVolume(cellp->cellID, fidp->Volume, AFS_INVALIDATE_CALLBACK);
+
osi_Log1(afsd_logp, "RevokeVolumeCallback Complete vol %d", fidp->Volume);
}
host = rx_HostOf(peerp);
port = rx_PortOf(peerp);
- tsp = cm_FindServerByIP(host, port, CM_SERVER_FILE);
+ tsp = cm_FindServerByIP(host, port, CM_SERVER_FILE, FALSE);
if (tsp) {
cellp = tsp->cellp;
cm_PutServer(tsp);
osi_Log2(afsd_logp, "SRXAFSCB_CallBack from host 0x%x port %d",
ntohl(host),
ntohs(port));
- else
+ else
osi_Log3(afsd_logp, "SRXAFSCB_CallBack from host 0x%x port %d for cell %s",
ntohl(host),
ntohs(port),
for (i=0; i < (long) fidsArrayp->AFSCBFids_len; i++) {
tfidp = &fidsArrayp->AFSCBFids_val[i];
-
+
if (tfidp->Volume == 0)
continue; /* means don't do anything */
else if (tfidp->Vnode == 0)
extern osi_rwlock_t buf_globalLock;
extern osi_rwlock_t cm_cellLock;
extern osi_rwlock_t cm_connLock;
-extern osi_rwlock_t cm_daemonLock;
extern osi_rwlock_t cm_dnlcLock;
extern osi_rwlock_t cm_scacheLock;
extern osi_rwlock_t cm_serverLock;
{"cm_connLock", (char*)&cm_connLock, LOCKTYPE_RW},
{"cm_userLock", (char*)&cm_userLock, LOCKTYPE_RW},
{"cm_volumeLock", (char*)&cm_volumeLock, LOCKTYPE_RW},
- {"cm_daemonLock", (char*)&cm_daemonLock, LOCKTYPE_RW},
{"cm_dnlcLock", (char*)&cm_dnlcLock, LOCKTYPE_RW},
{"cm_utilsLock", (char*)&cm_utilsLock, LOCKTYPE_RW},
{"smb_globalLock", (char*)&smb_globalLock, LOCKTYPE_RW},
port = rx_PortOf(peerp);
}
- osi_Log3(afsd_logp, "SRXAFSCB_GetLock(%d) from host 0x%x port %d",
+ osi_Log3(afsd_logp, "SRXAFSCB_GetLock(%d) from host 0x%x port %d",
index, ntohl(host), ntohs(port));
nentries = sizeof(ltable) / sizeof(struct _ltable);
cep->lock.pid_last_reader = 0;
cep->lock.pid_writer = 0;
cep->lock.src_indicator = 0;
-#if !defined(AFS_64BIT_ENV)
- cep->Length.high = scp->length.HighPart;
- cep->Length.low = scp->length.LowPart;
-#else
cep->Length = (afs_int64) scp->length.QuadPart;
-#endif
cep->DataVersion = (afs_uint32)(scp->dataVersion & 0xFFFFFFFF);
cep->callback = afs_data_pointer_to_int32(scp->cbServerp);
if (scp->flags & CM_SCACHEFLAG_PURERO) {
for ( i=0; i < cm_noIPAddr; i++ ) {
addr->addr_in[i] = cm_IPAddr[i];
addr->subnetmask[i] = cm_SubnetMask[i];
- addr->mtu[i] = (rx_mtu == -1 || (rx_mtu != -1 && cm_NetMtu[i] < rx_mtu)) ?
+ addr->mtu[i] = (rx_mtu == -1 || (rx_mtu != -1 && cm_NetMtu[i] < rx_mtu)) ?
cm_NetMtu[i] : rx_mtu;
}
{
char *p = NULL;
- struct sockaddr_in taddr;
cm_server_t *tsp = NULL;
cm_scache_t *scp = NULL;
cm_cell_t* cellp = NULL;
afs_uint32 hash;
int discarded;
+ cm_fid_t discardFid;
+ afs_uint32 discardType;
struct rx_connection *connp;
struct rx_peer *peerp;
unsigned long host = 0;
if (UuidToString((UUID *)serverUuid, &p) == RPC_S_OK) {
osi_Log1(afsd_logp, "SRXAFSCB_InitCallBackState3 Uuid%s ->",osi_LogSaveString(afsd_logp,p));
RpcStringFree(&p);
- }
+ }
- tsp = cm_FindServerByUuid(serverUuid, CM_SERVER_FILE);
+ tsp = cm_FindServerByUuid(serverUuid, CM_SERVER_FILE, FALSE);
}
if (!tsp)
- tsp = cm_FindServerByIP(host, port, CM_SERVER_FILE);
+ tsp = cm_FindServerByIP(host, port, CM_SERVER_FILE, FALSE);
if (tsp) {
cellp = tsp->cellp;
cm_PutServer(tsp);
osi_Log2(afsd_logp, "SRXAFSCB_InitCallBackState3 from host 0x%x port %d",
ntohl(host),
ntohs(port));
- else
+ else
osi_Log3(afsd_logp, "SRXAFSCB_InitCallBackState3 from host 0x%x port %d for cell %s",
ntohl(host),
ntohs(port),
}
if (connp && peerp) {
- taddr.sin_family = AF_INET;
- taddr.sin_addr.s_addr = rx_HostOf(rx_PeerOf(rx_ConnectionOf(callp)));
- taddr.sin_port = rx_PortOf(rx_PeerOf(rx_ConnectionOf(callp)));
-
- tsp = cm_FindServer(&taddr, CM_SERVER_FILE);
+ tsp = cm_FindServerByIP(host, port, CM_SERVER_FILE, FALSE);
osi_Log1(afsd_logp, "InitCallbackState3 server %x", tsp);
-
+
/* record the callback in the racing revokes structure. This
* shouldn't be necessary, since we shouldn't be making callback
* granting calls while we're going to get an initstate call,
if (scp->cbExpires > 0 && scp->cbServerp != NULL) {
/* we have a callback, now decide if we should clear it */
if (cm_ServerEqual(scp->cbServerp, tsp)) {
- osi_Log4(afsd_logp, "InitCallbackState3 Discarding SCache scp 0x%p vol %u vn %u uniq %u",
+ osi_Log4(afsd_logp, "InitCallbackState3 Discarding SCache scp 0x%p vol %u vn %u uniq %u",
scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+ discardFid = scp->fid;
+ discardType = scp->fileType;
cm_DiscardSCache(scp);
discarded = 1;
}
}
lock_ReleaseWrite(&scp->rw);
- if (discarded)
+ if (discarded) {
cm_CallbackNotifyChange(scp);
+ if (RDR_Initialized)
+ RDR_InvalidateObject(discardFid.cell, discardFid.volume, discardFid.vnode, discardFid.unique,
+ discardFid.hash, discardType, AFS_INVALIDATE_EXPIRED);
+ }
lock_ObtainWrite(&cm_scacheLock);
cm_ReleaseSCacheNoLock(scp);
- if (discarded && (scp->flags & CM_SCACHEFLAG_PURERO)) {
- cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
- if (volp) {
- if (volp->cbExpiresRO != 0)
- volp->cbExpiresRO = 0;
- cm_PutVolume(volp);
- }
- }
+ if (discarded && (scp->flags & CM_SCACHEFLAG_PURERO))
+ cm_callbackDiscardROVolumeByFID(&scp->fid);
} /* search one hash bucket */
} /* search all hash buckets */
-
+
lock_ReleaseWrite(&cm_scacheLock);
-
+
if (tsp) {
/* reset the No flags on the server */
cm_SetServerNo64Bit(tsp, 0);
/* we're done with the server structure */
cm_PutServer(tsp);
- }
+ }
}
return 0;
}
if ( !afs_uuid_equal(&cm_data.Uuid, clientUuid) ) {
UuidToString((UUID *)&cm_data.Uuid, &p);
UuidToString((UUID *)clientUuid, &q);
- osi_Log4(afsd_logp, "SRXAFSCB_ProbeUuid %s != %s from host 0x%x port %d",
- osi_LogSaveString(afsd_logp,p),
+ osi_Log4(afsd_logp, "SRXAFSCB_ProbeUuid %s != %s from host 0x%x port %d",
+ osi_LogSaveString(afsd_logp,p),
osi_LogSaveString(afsd_logp,q),
ntohl(host),
ntohs(port));
}
/* debug interface */
-static int
+static int
GetCellCommon(afs_int32 a_cellnum, char **a_name, serverList *a_hosts)
{
afs_int32 sn;
cm_cell_t * cellp;
- cm_serverRef_t * serverRefp;
+ cm_serverRef_t * serverRefp;
+ size_t len;
cellp = cm_FindCellByID(a_cellnum, CM_FLAG_NOPROBE);
if (!cellp) {
- *a_name = strdup("");
+ *a_name = (char *)xdr_alloc(sizeof(char));
+ if (*a_name)
+ *a_name = '\0';
return 0;
}
lock_ObtainRead(&cm_serverLock);
- *a_name = strdup(cellp->name);
+ len = strlen(cellp->name)+1;
+ *a_name = (char *)xdr_alloc(len);
+ if (*a_name)
+ memcpy(*a_name, cellp->name, len);
- for ( sn = 0, serverRefp = cellp->vlServersp;
+ for ( sn = 0, serverRefp = cellp->vlServersp;
sn < AFSMAXCELLHOSTS && serverRefp;
sn++, serverRefp = serverRefp->next);
a_hosts->serverList_len = sn;
a_hosts->serverList_val = (afs_int32 *)xdr_alloc(sn * sizeof(afs_int32));
- for ( sn = 0, serverRefp = cellp->vlServersp;
+ for ( sn = 0, serverRefp = cellp->vlServersp;
sn < AFSMAXCELLHOSTS && serverRefp;
sn++, serverRefp = serverRefp->next)
{
}
/* debug interface */
-int
+int
SRXAFSCB_GetCellByNum(struct rx_call *callp, afs_int32 a_cellnum,
char **a_name, serverList *a_hosts)
{
}
/* debug interface */
-int
-SRXAFSCB_TellMeAboutYourself( struct rx_call *callp,
+int
+SRXAFSCB_TellMeAboutYourself( struct rx_call *callp,
struct interfaceAddr *addr,
Capabilities * capabilities)
{
for ( i=0; i < cm_noIPAddr; i++ ) {
addr->addr_in[i] = cm_IPAddr[i];
addr->subnetmask[i] = cm_SubnetMask[i];
- addr->mtu[i] = (rx_mtu == -1 || (rx_mtu != -1 && cm_NetMtu[i] < rx_mtu)) ?
+ addr->mtu[i] = (rx_mtu == -1 || (rx_mtu != -1 && cm_NetMtu[i] < rx_mtu)) ?
cm_NetMtu[i] : rx_mtu;
}
lock_ReleaseRead(&cm_syscfgLock);
* As advertised.
*------------------------------------------------------------------------*/
-int SRXAFSCB_GetCellServDB(struct rx_call *callp, afs_int32 index, char **a_name,
+int SRXAFSCB_GetCellServDB(struct rx_call *callp, afs_int32 index, char **a_name,
serverList *a_hosts)
{
struct rx_connection *connp;
struct rx_peer *peerp;
unsigned long host = 0;
unsigned short port = 0;
+ size_t len;
if (cm_shutdown)
return 1;
ntohl(host), ntohs(port));
if (cm_data.rootCellp) {
- t_name = strdup(cm_data.rootCellp->name);
+ len = strlen(cm_data.rootCellp->name) + 1;
+ t_name = (char *)xdr_alloc(len);
+ if (t_name)
+ memcpy(t_name, cm_data.rootCellp->name, len);
} else {
t_name = (char *)xdr_alloc(1);
t_name[0] = '\0';
*(ptr++) = config->memCache;
}
-
+
/*------------------------------------------------------------------------
* EXPORTED SRXAFSCB_GetCacheConfig
int cm_HaveCallback(cm_scache_t *scp)
{
#ifdef AFS_FREELANCE_CLIENT
- // yj: we handle callbacks specially for callbacks on the root directory
- // Since it's local, we almost always say that we have callback on it
- // The only time we send back a 0 is if we're need to initialize or
- // reinitialize the fake directory
-
- // There are 2 state variables cm_fakeGettingCallback and cm_fakeDirCallback
- // cm_fakeGettingCallback is 1 if we're in the process of initialization and
- // hence should return false. it's 0 otherwise
- // cm_fakeDirCallback is 0 if we haven't loaded the fake directory, it's 1
- // if the fake directory is loaded and this is the first time cm_HaveCallback
- // is called since then. We return false in this case to allow cm_GetCallback
- // to be called because cm_GetCallback has some initialization work to do.
- // If cm_fakeDirCallback is 2, then it means that the fake directory is in
- // good shape and we simply return true, provided no change is detected.
- int fdc, fgc;
-
- if (cm_freelanceEnabled &&
- scp->fid.cell==AFS_FAKE_ROOT_CELL_ID && scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
- lock_ObtainMutex(&cm_Freelance_Lock);
- fdc = cm_fakeDirCallback;
- fgc = cm_fakeGettingCallback;
- lock_ReleaseMutex(&cm_Freelance_Lock);
-
- if (fdc==1) { // first call since init
- return 0;
- } else if (fdc==2 && !fgc) { // we're in good shape
- if (cm_getLocalMountPointChange()) { // check for changes
- cm_clearLocalMountPointChange(); // clear the changefile
- lock_ReleaseWrite(&scp->rw); // this is re-locked in reInitLocalMountPoints
- cm_reInitLocalMountPoints(); // start reinit
- lock_ObtainWrite(&scp->rw); // now get the lock back
- return 0;
- }
- return (cm_data.fakeDirVersion == scp->dataVersion);
+ if (cm_freelanceEnabled &&
+ scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
+ scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
+ if (cm_getLocalMountPointChange()) {
+ cm_clearLocalMountPointChange();
+ lock_ReleaseWrite(&scp->rw);
+ cm_reInitLocalMountPoints();
+ lock_ObtainWrite(&scp->rw);
}
- return 0;
+ return (cm_data.fakeDirVersion == scp->dataVersion);
}
#endif
-
- if (scp->cbServerp != NULL) {
- return 1;
- } else if (cm_OfflineROIsValid) {
+ if (cm_readonlyVolumeVersioning &&
+ (scp->flags & CM_SCACHEFLAG_PURERO)) {
cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
if (volp) {
- switch (cm_GetVolumeStatus(volp, scp->fid.volume)) {
- case vl_offline:
- case vl_alldown:
- case vl_unknown:
- cm_PutVolume(volp);
- return 1;
- default:
- cm_PutVolume(volp);
- return 0;
+ int haveCB = 0;
+ if (cm_OfflineROIsValid) {
+ switch (cm_GetVolumeStatus(volp, scp->fid.volume)) {
+ case vl_offline:
+ case vl_alldown:
+ case vl_unknown:
+ haveCB = 1;
+ break;
+ }
}
+ if (cm_readonlyVolumeVersioning &&
+ !haveCB &&
+ volp->creationDateRO == scp->volumeCreationDate &&
+ volp->cbServerpRO != NULL) {
+ haveCB = 1;
+ }
+ cm_PutVolume(volp);
+ return haveCB;
}
- return 1;
}
- return 0;
+ if (scp->cbServerp != NULL)
+ return 1;
+ else
+ return 0;
}
/* need to detect a broken callback that races with our obtaining a callback.
* When we're back from the call, we look at all of the callback revokes with
* counter numbers greater than the one we recorded in our caller's structure,
* and replay those that are higher than when we started the call.
- *
+ *
* We free all the structures in the queue when the count of the # of outstanding
* callback-granting calls drops to zero.
*
*
* Called with scp write locked, so we can discard the callbacks easily with
* this locking hierarchy.
+ *
+ * Performs cleanup of the stack allocated cm_callbackRequest_t object.
+ *
+ * Returns 0 on success and non-zero if the callback lost a race.
*/
-void cm_EndCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp,
- AFSCallBack *cbp, long flags)
+int
+cm_EndCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp,
+ AFSCallBack *cbp, AFSVolSync *volSyncp, long flags)
{
cm_racingRevokes_t *revp; /* where we are */
cm_racingRevokes_t *nrevp; /* where we'll be next */
- int freeFlag;
+ int freeRacingRevokes;
+ int freeServer;
cm_server_t * serverp = NULL;
- int discardScp = 0, discardVolCB = 0;
+ int lostRace = 0;
lock_ObtainWrite(&cm_callbackLock);
if (flags & CM_CALLBACK_MAINTAINCOUNT) {
- osi_assertx(cm_activeCallbackGrantingCalls > 0,
+ osi_assertx(cm_activeCallbackGrantingCalls > 0,
"CM_CALLBACK_MAINTAINCOUNT && cm_activeCallbackGrantingCalls == 0");
+ freeServer = 0;
}
else {
osi_assertx(cm_activeCallbackGrantingCalls-- > 0,
"!CM_CALLBACK_MAINTAINCOUNT && cm_activeCallbackGrantingCalls == 0");
+ freeServer = 1;
}
- if (cm_activeCallbackGrantingCalls == 0)
- freeFlag = 1;
- else
- freeFlag = 0;
-
- /* record the callback; we'll clear it below if we really lose it */
- if (cbrp) {
- if (scp) {
- if (!cm_ServerEqual(scp->cbServerp, cbrp->serverp)) {
- serverp = scp->cbServerp;
- if (!freeFlag)
- cm_GetServer(cbrp->serverp);
- scp->cbServerp = cbrp->serverp;
- } else {
- if (freeFlag)
- serverp = cbrp->serverp;
- }
- scp->cbExpires = cbrp->startTime + cbp->ExpirationTime;
- } else {
- if (freeFlag)
- serverp = cbrp->serverp;
- }
- if (freeFlag)
- cbrp->serverp = NULL;
- }
+ if (cm_activeCallbackGrantingCalls == 0)
+ freeRacingRevokes = 1;
+ else
+ freeRacingRevokes = 0;
- /* a callback was actually revoked during our granting call, so
+ /*
+ * a callback was revoked during our granting call, so
* run down the list of revoked fids, looking for ours.
* If activeCallbackGrantingCalls is zero, free the elements, too.
*
((revp->flags & CM_RACINGFLAG_CANCELVOL) &&
scp->fid.volume == revp->fid.volume)
||
- ((revp->flags & CM_RACINGFLAG_CANCELALL) &&
+ ((revp->flags & CM_RACINGFLAG_CANCELALL) &&
(revp->fid.cell == 0 || scp->fid.cell == revp->fid.cell)))) {
/* this one matches */
osi_Log4(afsd_logp,
scp,
cbrp->callbackCount, revp->callbackCount,
cm_callbackCount);
- discardScp = 1;
- if ((scp->flags & CM_SCACHEFLAG_PURERO) &&
- (revp->flags & CM_RACINGFLAG_ALL)) {
- cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
- if (volp) {
- volp->cbExpiresRO = 0;
- cm_PutVolume(volp);
- }
- }
+ lostRace = 1;
+ if ((scp->flags & CM_SCACHEFLAG_PURERO) &&
+ (revp->flags & CM_RACINGFLAG_ALL))
+ cm_callbackDiscardROVolumeByFID(&scp->fid);
}
- if (freeFlag)
+ if (freeRacingRevokes)
free(revp);
}
/* if we freed the list, zap the pointer to it */
- if (freeFlag)
+ if (freeRacingRevokes)
cm_racingRevokesp = NULL;
-
lock_ReleaseWrite(&cm_callbackLock);
- if ( discardScp ) {
- cm_DiscardSCache(scp);
- lock_ReleaseWrite(&scp->rw);
- cm_CallbackNotifyChange(scp);
- lock_ObtainWrite(&scp->rw);
- } else {
- if (scp && scp->flags & CM_SCACHEFLAG_PURERO) {
+ /* record the callback if we didn't lose it */
+ if (!lostRace && scp) {
+ if (cbrp) {
+ if (!cm_ServerEqual(scp->cbServerp, cbrp->serverp)) {
+ serverp = scp->cbServerp;
+ scp->cbServerp = cbrp->serverp;
+ if (freeServer) {
+ cbrp->serverp = NULL;
+ } else {
+ cm_GetServer(scp->cbServerp);
+ }
+ } else if (freeServer) {
+ serverp = cbrp->serverp;
+ cbrp->serverp = NULL;
+ }
+ scp->cbExpires = cbrp->startTime + cbp->ExpirationTime;
+ scp->cbIssued = time(NULL);
+ }
+
+ if (scp->flags & CM_SCACHEFLAG_PURERO) {
cm_volume_t * volp = cm_GetVolumeByFID(&scp->fid);
if (volp) {
- volp->cbExpiresRO = scp->cbExpires;
- if (volp->cbServerpRO != scp->cbServerp) {
- if (volp->cbServerpRO)
- cm_PutServer(volp->cbServerpRO);
- cm_GetServer(scp->cbServerp);
- volp->cbServerpRO = scp->cbServerp;
+ if (volSyncp) {
+ lock_ObtainWrite(&cm_scacheLock);
+ volp->cbExpiresRO = scp->cbExpires;
+ volp->cbIssuedRO = scp->cbIssued;
+ volp->creationDateRO = volSyncp->spare1;
+ if (volp->cbServerpRO != scp->cbServerp) {
+ if (volp->cbServerpRO)
+ cm_PutServer(volp->cbServerpRO);
+ cm_GetServer(scp->cbServerp);
+ volp->cbServerpRO = scp->cbServerp;
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
}
cm_PutVolume(volp);
}
}
}
+ else
+ {
+ /*
+ * No need to discard the cm_scache object or notify the
+ * afs redirector or smb client about a change if we did lose
+ * the race. That was done when the callback was processed in
+ * cm_RevokeCallback().
+ */
+ if (cbrp && freeServer) {
+ serverp = cbrp->serverp;
+ cbrp->serverp = NULL;
+ }
+ }
if ( serverp ) {
lock_ObtainWrite(&cm_serverLock);
cm_FreeServer(serverp);
lock_ReleaseWrite(&cm_serverLock);
}
+
+ return lostRace;
}
/* if flags is 1, we want to force the code to make one call, anyway.
struct rx_connection * rxconnp = NULL;
int syncop_done = 0;
- osi_Log4(afsd_logp, "GetCallback scp 0x%p cell %d vol %d flags %lX",
+ memset(&volSync, 0, sizeof(volSync));
+
+ osi_Log4(afsd_logp, "GetCallback scp 0x%p cell %d vol %d flags %lX",
scp, scp->fid.cell, scp->fid.volume, flags);
#ifdef AFS_FREELANCE_CLIENT
// The case where a callback is needed on /afs is handled
// specially. We need to fetch the status by calling
- // cm_MergeStatus and mark that cm_fakeDirCallback is 2
+ // cm_MergeStatus
if (cm_freelanceEnabled &&
(scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
scp->fid.volume==AFS_FAKE_ROOT_VOL_ID)) {
goto done;
syncop_done = 1;
- if (cm_fakeDirCallback != 2) {
- // Start by indicating that we're in the process
- // of fetching the callback
- lock_ObtainMutex(&cm_Freelance_Lock);
- osi_Log0(afsd_logp,"GetCallback Freelance fakeGettingCallback=1");
- cm_fakeGettingCallback = 1;
- lock_ReleaseMutex(&cm_Freelance_Lock);
-
+ if (scp->dataVersion != cm_data.fakeDirVersion) {
memset(&afsStatus, 0, sizeof(afsStatus));
memset(&volSync, 0, sizeof(volSync));
+ InterlockedIncrement(&scp->activeRPCs);
- // Fetch the status info
+ // Fetch the status info
cm_MergeStatus(NULL, scp, &afsStatus, &volSync, userp, reqp, 0);
-
- // Indicate that the callback is not done
- lock_ObtainMutex(&cm_Freelance_Lock);
- osi_Log0(afsd_logp,"GetCallback Freelance fakeDirCallback=2");
- cm_fakeDirCallback = 2;
-
- // Indicate that we're no longer fetching the callback
- osi_Log0(afsd_logp,"GetCallback Freelance fakeGettingCallback=0");
- cm_fakeGettingCallback = 0;
- lock_ReleaseMutex(&cm_Freelance_Lock);
}
goto done;
}
#endif /* AFS_FREELANCE_CLIENT */
-
+
mustCall = (flags & 1);
cm_AFSFidFromFid(&tfid, &scp->fid);
while (1) {
/* otherwise, we have to make an RPC to get the status */
if (!syncop_done) {
- code = cm_SyncOp(scp, NULL, userp, reqp, 0,
+ code = cm_SyncOp(scp, NULL, userp, reqp, 0,
CM_SCACHESYNC_FETCHSTATUS | CM_SCACHESYNC_GETCALLBACK);
if (code)
break;
cm_StartCallbackGrantingCall(scp, &cbr);
sfid = scp->fid;
lock_ReleaseWrite(&scp->rw);
-
+
/* now make the RPC */
- osi_Log4(afsd_logp, "CALL FetchStatus scp 0x%p vol %u vn %u uniq %u",
+ InterlockedIncrement(&scp->activeRPCs);
+ osi_Log4(afsd_logp, "CALL FetchStatus scp 0x%p vol %u vn %u uniq %u",
scp, sfid.volume, sfid.vnode, sfid.unique);
do {
code = cm_ConnFromFID(&sfid, userp, reqp, &connp);
- if (code)
+ if (code)
continue;
rxconnp = cm_GetRxConn(connp);
&afsStatus, &callback, &volSync);
rx_PutConnection(rxconnp);
- } while (cm_Analyze(connp, userp, reqp, &sfid, &volSync, NULL,
+ } while (cm_Analyze(connp, userp, reqp, &sfid, 0, &volSync, NULL,
&cbr, code));
code = cm_MapRPCError(code, reqp);
if (code)
- osi_Log4(afsd_logp, "CALL FetchStatus FAILURE code 0x%x scp 0x%p vol %u vn %u",
+ osi_Log4(afsd_logp, "CALL FetchStatus FAILURE code 0x%x scp 0x%p vol %u vn %u",
code, scp, scp->fid.volume, scp->fid.vnode);
else
- osi_Log4(afsd_logp, "CALL FetchStatus SUCCESS scp 0x%p vol %u vn %u uniq %u",
+ osi_Log4(afsd_logp, "CALL FetchStatus SUCCESS scp 0x%p vol %u vn %u uniq %u",
scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
lock_ObtainWrite(&scp->rw);
if (code == 0) {
- cm_EndCallbackGrantingCall(scp, &cbr, &callback, 0);
- cm_MergeStatus(NULL, scp, &afsStatus, &volSync, userp, reqp, 0);
+ int lostRace = cm_EndCallbackGrantingCall(scp, &cbr, &callback, &volSync, 0);
+ if (!lostRace)
+ cm_MergeStatus(NULL, scp, &afsStatus, &volSync, userp, reqp, 0);
} else {
- cm_EndCallbackGrantingCall(NULL, &cbr, NULL, 0);
+ cm_EndCallbackGrantingCall(NULL, &cbr, NULL, NULL, 0);
+ InterlockedDecrement(&scp->activeRPCs);
}
/* if we got an error, return to caller */
done:
if (syncop_done)
cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_FETCHSTATUS | CM_SCACHESYNC_GETCALLBACK);
-
+
if (code) {
osi_Log2(afsd_logp, "GetCallback Failed code 0x%x scp 0x%p -->",code, scp);
osi_Log4(afsd_logp, " cell %u vol %u vn %u uniq %u",
scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
} else {
- osi_Log3(afsd_logp, "GetCallback Complete scp 0x%p cell %d vol %d",
+ osi_Log3(afsd_logp, "GetCallback Complete scp 0x%p cell %d vol %d",
scp, scp->fid.cell, scp->fid.volume);
}
}
-/* called with cm_scacheLock held */
-long cm_CBServersUp(cm_scache_t *scp, time_t * downTime)
+/*
+ * cm_CBServersDownTime() returns 1 if the downTime parameter is valid.
+ *
+ * Servers with multiple interfaces have multiple cm_server_t objects
+ * which share the same UUID. If one interface is down but others are up,
+ * the server should not be considered down. The returned downTime should
+ * be the largest non-zero value if down or zero if up. If the cbServerp
+ * is down, it is updated to refer to an interface that is up (if one exists).
+ *
+ * called with cm_scacheLock held
+ */
+static long
+cm_CBServersDownTime(cm_scache_t *scp, cm_volume_t *volp, time_t * pdownTime)
{
cm_vol_state_t *statep;
- cm_volume_t * volp;
- afs_uint32 volID = scp->fid.volume;
cm_serverRef_t *tsrp;
- int found;
+ int alldown = 1;
+ time_t downTime = 0;
+ cm_server_t * upserver = NULL;
+ cm_server_t * downserver;
- *downTime = 0;
+ *pdownTime = 0;
if (scp->cbServerp == NULL)
return 1;
- volp = cm_GetVolumeByFID(&scp->fid);
- if (!volp)
+ if (!(scp->cbServerp->flags & CM_SERVERFLAG_DOWN))
return 1;
- statep = cm_VolumeStateByID(volp, volID);
- cm_PutVolume(volp);
- if (statep->state == vl_online)
- return 1;
+ statep = cm_VolumeStateByID(volp, scp->fid.volume);
+ if (statep) {
+ for (tsrp = statep->serversp; tsrp; tsrp=tsrp->next) {
+ if (tsrp->status == srv_deleted)
+ continue;
- for (found = 0,tsrp = statep->serversp; tsrp; tsrp=tsrp->next) {
- if (tsrp->status == srv_deleted)
- continue;
- if (cm_ServerEqual(tsrp->server, scp->cbServerp))
- found = 1;
- if (tsrp->server->downTime > *downTime)
- *downTime = tsrp->server->downTime;
+ if (!cm_ServerEqual(tsrp->server, scp->cbServerp))
+ continue;
+
+ if (!(tsrp->server->flags & CM_SERVERFLAG_DOWN)) {
+ alldown = 0;
+ if (!upserver) {
+ upserver = tsrp->server;
+ cm_GetServer(upserver);
+ }
+ }
+
+ if (tsrp->server->downTime > downTime)
+ downTime = tsrp->server->downTime;
+ }
+ } else {
+ downTime = scp->cbServerp->downTime;
}
/* if the cbServerp does not match the current volume server list
- * we report the callback server as up so the callback can be
+ * we report the callback server as up so the callback can be
* expired.
*/
- return(found ? 0 : 1);
+
+ if (alldown) {
+ *pdownTime = downTime;
+ } else {
+ lock_ObtainWrite(&scp->rw);
+ downserver = scp->cbServerp;
+ scp->cbServerp = upserver;
+ lock_ReleaseWrite(&scp->rw);
+ cm_PutServer(downserver);
+ }
+ return 1;
}
/* called periodically by cm_daemon to shut down use of expired callbacks */
{
afs_uint32 i;
cm_scache_t *scp;
+ cm_volume_t *volp;
+ enum volstatus volstate;
time_t now, downTime;
-
+
osi_Log0(afsd_logp, "CheckCBExpiration");
now = time(NULL);
lock_ObtainWrite(&cm_scacheLock);
for (i=0; i<cm_data.scacheHashTableSize; i++) {
for (scp = cm_data.scacheHashTablep[i]; scp; scp=scp->nextp) {
+ volp = NULL;
+ cm_HoldSCacheNoLock(scp);
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ /*
+ * If this is not a PURERO object and there is no callback
+ * or it hasn't expired, there is nothing to do
+ */
+ if (!(scp->flags & CM_SCACHEFLAG_PURERO) &&
+ (scp->cbServerp == NULL || scp->cbExpires == 0 || now < scp->cbExpires))
+ goto scp_complete;
+
+ /*
+ * Determine the volume state and update the callback info
+ * to the latest if it is a PURERO object.
+ */
+ volp = cm_GetVolumeByFID(&scp->fid);
+ volstate = vl_unknown;
downTime = 0;
- if (scp->flags & CM_SCACHEFLAG_PURERO) {
- cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
- if (volp) {
- if (volp->cbExpiresRO > scp->cbExpires &&
- scp->cbExpires > 0)
- {
- scp->cbExpires = volp->cbExpiresRO;
- if (volp->cbServerpRO != scp->cbServerp) {
- if (scp->cbServerp)
- cm_PutServer(scp->cbServerp);
- cm_GetServer(volp->cbServerpRO);
- scp->cbServerp = volp->cbServerpRO;
- }
- }
- cm_PutVolume(volp);
+ if (volp) {
+ if ((scp->flags & CM_SCACHEFLAG_PURERO) &&
+ volp->cbExpiresRO > scp->cbExpires && scp->cbExpires > 0)
+ {
+ lock_ObtainWrite(&scp->rw);
+ scp->cbExpires = volp->cbExpiresRO;
+ scp->cbIssued = volp->cbIssuedRO;
+ if (volp->cbServerpRO != scp->cbServerp) {
+ if (scp->cbServerp)
+ cm_PutServer(scp->cbServerp);
+ cm_GetServer(volp->cbServerpRO);
+ scp->cbServerp = volp->cbServerpRO;
+ }
+ lock_ReleaseWrite(&scp->rw);
}
+ volstate = cm_GetVolumeStatus(volp, scp->fid.volume);
}
- if (scp->cbServerp && scp->cbExpires > 0 && now > scp->cbExpires &&
- (cm_CBServersUp(scp, &downTime) || downTime == 0 || downTime >= scp->cbExpires))
- {
- cm_HoldSCacheNoLock(scp);
- lock_ReleaseWrite(&cm_scacheLock);
-
- osi_Log4(afsd_logp, "Callback Expiration Discarding SCache scp 0x%p vol %u vn %u uniq %u",
- scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
- lock_ObtainWrite(&scp->rw);
- cm_DiscardSCache(scp);
- lock_ReleaseWrite(&scp->rw);
- cm_CallbackNotifyChange(scp);
- lock_ObtainWrite(&cm_scacheLock);
- cm_ReleaseSCacheNoLock(scp);
- }
+ /* If there is no callback or it hasn't expired, there is nothing to do */
+ if (scp->cbServerp == NULL || scp->cbExpires == 0 || now < scp->cbExpires)
+ goto scp_complete;
+
+ /* If the volume is known not to be online, do not expire the callback */
+ if (volstate != vl_online)
+ goto scp_complete;
+
+ /*
+ * If all the servers are down and the callback expired after the
+ * issuing server went down, do not expire the callback
+ */
+ if (cm_CBServersDownTime(scp, volp, &downTime) && downTime && downTime < scp->cbExpires)
+ goto scp_complete;
+
+ /* The callback has expired, discard the status info */
+ osi_Log4(afsd_logp, "Callback Expiration Discarding SCache scp 0x%p vol %u vn %u uniq %u",
+ scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+ lock_ObtainWrite(&scp->rw);
+ cm_DiscardSCache(scp);
+ lock_ReleaseWrite(&scp->rw);
+
+ if (RDR_Initialized)
+ RDR_InvalidateObject(scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique,
+ scp->fid.hash, scp->fileType, AFS_INVALIDATE_EXPIRED);
+
+ cm_CallbackNotifyChange(scp);
+
+ scp_complete:
+ if (volp)
+ cm_PutVolume(volp);
+
+ lock_ObtainWrite(&cm_scacheLock);
+ cm_ReleaseSCacheNoLock(scp);
}
}
lock_ReleaseWrite(&cm_scacheLock);
}
-void
+void
cm_GiveUpAllCallbacks(cm_server_t *tsp, afs_int32 markDown)
{
long code;
cm_conn_t *connp;
struct rx_connection * rxconnp;
- if ((tsp->type == CM_SERVER_FILE) && !(tsp->flags & CM_SERVERFLAG_DOWN))
+ if ((tsp->type == CM_SERVER_FILE) && !(tsp->flags & CM_SERVERFLAG_DOWN))
{
- code = cm_ConnByServer(tsp, cm_rootUserp, &connp);
+ code = cm_ConnByServer(tsp, cm_rootUserp, FALSE, &connp);
if (code == 0) {
rxconnp = cm_GetRxConn(connp);
rx_SetConnDeadTime(rxconnp, 10);
lock_ObtainMutex(&tsp->mx);
if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
- tsp->flags |= CM_SERVERFLAG_DOWN;
+ _InterlockedOr(&tsp->flags, CM_SERVERFLAG_DOWN);
tsp->downTime = time(NULL);
}
/* Now update the volume status */
code = cm_FindVolumeByID(tsp->cellp, tsrvp->ids[i], cm_rootUserp,
&req, CM_GETVOL_FLAG_NO_LRU_UPDATE | CM_GETVOL_FLAG_NO_RESET, &volp);
lock_ObtainMutex(&tsp->mx);
- if (code == 0) {
+ if (code == 0) {
cm_UpdateVolumeStatus(volp, tsrvp->ids[i]);
cm_PutVolume(volp);
- }
+ }
}
}
}
if (!cm_giveUpAllCBs)
return;
- lock_ObtainWrite(&cm_serverLock);
+ lock_ObtainRead(&cm_serverLock);
for (tsp = cm_allServersp; tsp; tsp = tsp->allNextp) {
cm_GetServerNoLock(tsp);
- lock_ReleaseWrite(&cm_serverLock);
+ lock_ReleaseRead(&cm_serverLock);
cm_GiveUpAllCallbacks(tsp, markDown);
- lock_ObtainWrite(&cm_serverLock);
+ lock_ObtainRead(&cm_serverLock);
cm_PutServerNoLock(tsp);
}
- lock_ReleaseWrite(&cm_serverLock);
+ lock_ReleaseRead(&cm_serverLock);
+}
+
+void
+cm_GiveUpAllCallbacksAllServersMulti(afs_int32 markDown)
+{
+ long code;
+ cm_conn_t **conns = NULL;
+ struct rx_connection **rxconns = NULL;
+ afs_int32 i, nconns = 0, maxconns;
+ cm_server_t ** serversp, *tsp;
+ afs_int32 *results;
+ time_t start, *deltas;
+
+ maxconns = cm_numFileServers;
+ if (maxconns == 0)
+ return;
+
+ conns = (cm_conn_t **)malloc(maxconns * sizeof(cm_conn_t *));
+ rxconns = (struct rx_connection **)malloc(maxconns * sizeof(struct rx_connection *));
+ deltas = (time_t *)malloc(maxconns * sizeof (time_t));
+ results = (afs_int32 *)malloc(maxconns * sizeof (afs_int32));
+ serversp = (cm_server_t **)malloc(maxconns * sizeof(cm_server_t *));
+
+ lock_ObtainRead(&cm_serverLock);
+ for (nconns=0, tsp = cm_allServersp; tsp && nconns < maxconns; tsp = tsp->allNextp) {
+ if (tsp->type != CM_SERVER_FILE ||
+ (tsp->flags & CM_SERVERFLAG_DOWN) ||
+ tsp->cellp == NULL /* SetPrefs only */)
+ continue;
+
+ cm_GetServerNoLock(tsp);
+ lock_ReleaseRead(&cm_serverLock);
+
+ serversp[nconns] = tsp;
+ code = cm_ConnByServer(tsp, cm_rootUserp, FALSE, &conns[nconns]);
+ if (code) {
+ lock_ObtainRead(&cm_serverLock);
+ cm_PutServerNoLock(tsp);
+ continue;
+ }
+ lock_ObtainRead(&cm_serverLock);
+ rxconns[nconns] = cm_GetRxConn(conns[nconns]);
+ rx_SetConnDeadTime(rxconns[nconns], 10);
+
+ nconns++;
+ }
+ lock_ReleaseRead(&cm_serverLock);
+
+ if (nconns) {
+ /* Perform the multi call */
+ start = time(NULL);
+ multi_Rx(rxconns,nconns)
+ {
+ multi_RXAFS_GiveUpAllCallBacks();
+ results[multi_i]=multi_error;
+ } multi_End;
+ }
+
+ /* Process results of servers that support RXAFS_GetCapabilities */
+ for (i=0; i<nconns; i++) {
+ rx_SetConnDeadTime(rxconns[i], ConnDeadtimeout);
+ rx_PutConnection(rxconns[i]);
+ cm_PutConn(conns[i]);
+
+ tsp = serversp[i];
+ cm_GCConnections(tsp);
+
+ if (markDown) {
+ cm_server_vols_t * tsrvp;
+ cm_volume_t * volp;
+ int i;
+
+ cm_ForceNewConnections(tsp);
+
+ lock_ObtainMutex(&tsp->mx);
+ if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
+ _InterlockedOr(&tsp->flags, CM_SERVERFLAG_DOWN);
+ tsp->downTime = time(NULL);
+ }
+ /* Now update the volume status */
+ for (tsrvp = tsp->vols; tsrvp; tsrvp = tsrvp->nextp) {
+ for (i=0; i<NUM_SERVER_VOLS; i++) {
+ if (tsrvp->ids[i] != 0) {
+ cm_req_t req;
+
+ cm_InitReq(&req);
+ lock_ReleaseMutex(&tsp->mx);
+ code = cm_FindVolumeByID(tsp->cellp, tsrvp->ids[i], cm_rootUserp,
+ &req, CM_GETVOL_FLAG_NO_LRU_UPDATE | CM_GETVOL_FLAG_NO_RESET, &volp);
+ lock_ObtainMutex(&tsp->mx);
+ if (code == 0) {
+ cm_UpdateVolumeStatus(volp, tsrvp->ids[i]);
+ cm_PutVolume(volp);
+ }
+ }
+ }
+ }
+ lock_ReleaseMutex(&tsp->mx);
+ }
+ }
+
+ free(conns);
+ free(rxconns);
+ free(deltas);
+ free(results);
+ free(serversp);
}
git://git.openafs.org / openafs.git / blobdiff