#include <afsconfig.h>
#include "afs/param.h"
-RCSID
- ("$Header$");
#include "afs/stds.h"
#include "afs/sysincludes.h" /* Standard vendor system headers */
#ifdef AFS_SGI62_ENV
#include "h/hashing.h"
#endif
-#if !defined(AFS_HPUX110_ENV) && !defined(AFS_LINUX20_ENV) && !defined(AFS_DARWIN60_ENV)
+#if !defined(AFS_HPUX110_ENV) && !defined(AFS_LINUX20_ENV) && !defined(AFS_DARWIN_ENV)
#include <netinet/in_var.h>
#endif /* ! AFS_HPUX110_ENV */
#endif /* !defined(UKERNEL) */
#include "afsincludes.h" /* Afs-based standard headers */
#include "afs/afs_stats.h" /* afs statistics */
+#include "afs/afs_dynroot.h"
#if defined(AFS_SUN56_ENV)
#include <inet/led.h>
#endif /* vlserver error base define */
/* Exported variables */
-ino_t volumeInode; /*Inode for VolumeItems file */
-afs_rwlock_t afs_xvolume; /* allocation lock for volumes */
+afs_dcache_id_t volumeInode; /* Inode for VolumeItems file */
+afs_rwlock_t afs_xvolume; /** allocation lock for volumes */
struct volume *afs_freeVolList;
struct volume *afs_volumes[NVOLS];
-afs_int32 afs_volCounter = 1; /* for allocating volume indices */
+afs_int32 afs_volCounter = 1; /** for allocating volume indices */
afs_int32 fvTable[NFENTRIES];
/* Forward declarations */
afs_int32 * cID);
-/* Convert a volume name to a #; return 0 if can't parse as a number */
+
+/**
+ * Convert a volume name to a number;
+ * @param aname Volume name.
+ * @return return 0 if can't parse as a number.
+ */
static int
afs_vtoi(register char *aname)
{
} /*afs_vtoi */
-/*
+/**
* All of the vol cache routines must be called with the afs_xvolume
* lock held in exclusive mode, since they use static variables.
* In addition, we don't want two people adding the same volume
static struct fvolume staticFVolume;
afs_int32 afs_FVIndex = -1;
-/* UFS specific version of afs_GetVolSlot */
-
+/**
+ * UFS specific version of afs_GetVolSlot
+ * @return
+ */
struct volume *
afs_UFSGetVolSlot(void)
{
- register struct volume *tv, **lv;
+ register struct volume *tv = NULL, **lv;
struct osi_file *tfile;
- register afs_int32 i, code;
+ register afs_int32 i = -1, code;
afs_int32 bestTime;
- struct volume *bestVp, **bestLp;
+ struct volume *bestVp, *oldLp = NULL, **bestLp = NULL;
+ char *oldname = NULL;
+ afs_int32 oldvtix = -2; /* Initialize to a value that doesn't occur */
AFS_STATCNT(afs_UFSGetVolSlot);
if (!afs_freeVolList) {
}
}
}
- if (!bestVp)
- osi_Panic("getvolslot none");
+ if (!bestVp) {
+ afs_warn("afs_UFSGetVolSlot: no vol slots available\n");
+ goto error;
+ }
tv = bestVp;
+
+ oldLp = *bestLp;
*bestLp = tv->next;
- if (tv->name)
- afs_osi_Free(tv->name, strlen(tv->name) + 1);
+
+ oldname = tv->name;
tv->name = NULL;
+
+ oldvtix = tv->vtix;
/* now write out volume structure to file */
if (tv->vtix < 0) {
tv->vtix = afs_volCounter++;
* next chain
*/
if (afs_FVIndex != tv->vtix) {
- tfile = osi_UFSOpen(volumeInode);
+ tfile = osi_UFSOpen(&volumeInode);
code =
afs_osi_Read(tfile, sizeof(struct fvolume) * tv->vtix,
&staticFVolume, sizeof(struct fvolume));
- if (code != sizeof(struct fvolume))
- osi_Panic("read volumeinfo");
osi_UFSClose(tfile);
+ if (code != sizeof(struct fvolume)) {
+ afs_warn("afs_UFSGetVolSlot: error %d reading volumeinfo\n",
+ (int)code);
+ goto error;
+ }
afs_FVIndex = tv->vtix;
}
}
staticFVolume.dotdot = tv->dotdot;
staticFVolume.rootVnode = tv->rootVnode;
staticFVolume.rootUnique = tv->rootUnique;
- tfile = osi_UFSOpen(volumeInode);
+ tfile = osi_UFSOpen(&volumeInode);
code =
afs_osi_Write(tfile, sizeof(struct fvolume) * afs_FVIndex,
&staticFVolume, sizeof(struct fvolume));
- if (code != sizeof(struct fvolume))
- osi_Panic("write volumeinfo");
osi_UFSClose(tfile);
+ if (code != sizeof(struct fvolume)) {
+ afs_warn("afs_UFSGetVolSlot: error %d writing volumeinfo\n",
+ (int)code);
+ goto error;
+ }
+ if (oldname) {
+ afs_osi_Free(oldname, strlen(oldname) + 1);
+ oldname = NULL;
+ }
} else {
tv = afs_freeVolList;
afs_freeVolList = tv->next;
}
return tv;
+ error:
+ if (tv) {
+ if (oldtvix == -2) {
+ afs_warn("afs_UFSGetVolSlot: oldvtix is uninitialized\n");
+ return NULL;
+ }
+ if (oldname) {
+ tv->name = oldname;
+ oldname = NULL;
+ }
+ if (oldvtix < 0) {
+ afs_volCounter--;
+ fvTable[i] = staticFVolume.next;
+ }
+ if (bestLp) {
+ *bestLp = oldLp;
+ }
+ tv->vtix = oldvtix;
+ /* we messed with staticFVolume, so make sure someone else
+ * doesn't think it's fine to use */
+ afs_FVIndex = -1;
+ }
+ return NULL;
} /*afs_UFSGetVolSlot */
+/**
+ * Get an available volume list slot. If the list does not exist,
+ * create one containing a single element.
+ * @return
+ */
struct volume *
afs_MemGetVolSlot(void)
{
} /*afs_MemGetVolSlot */
-/* afs_ResetVolumes()
- * Reset volume inforamation for all volume structs that
+/**
+ * Reset volume information for all volume structs that
* point to a speicific server.
+ * @param srvp
*/
void
afs_ResetVolumes(struct server *srvp)
/* Find any volumes residing on this server and flush their state */
for (j = 0; j < NVOLS; j++) {
for (vp = afs_volumes[j]; vp; vp = vp->next) {
- for (k = 0; k < MAXHOSTS; k++) {
+ for (k = 0; k < AFS_MAXHOSTS; k++) {
if (!srvp || (vp->serverHost[k] == srvp)) {
vp->serverHost[k] = 0;
afs_ResetVolumeInfo(vp);
}
-/* reset volume name to volume id mapping cache */
+/**
+ * Reset volume name to volume id mapping cache.
+ * @param flags
+ */
void
afs_CheckVolumeNames(int flags)
{
unsigned int now;
struct vcache *tvc;
afs_int32 *volumeID, *cellID, vsize, nvols;
+#ifdef AFS_DARWIN80_ENV
+ vnode_t tvp;
+#endif
AFS_STATCNT(afs_CheckVolumeNames);
nvols = 0;
continue;
}
}
+ /* ??? */
if (flags & (AFS_VOLCHECK_BUSY | AFS_VOLCHECK_FORCE)) {
- for (j = 0; j < MAXHOSTS; j++)
+ for (j = 0; j < AFS_MAXHOSTS; j++)
tv->status[j] = not_busy;
}
/* next ensure all mt points are re-evaluated */
if (nvols || (flags & (AFS_VOLCHECK_FORCE | AFS_VOLCHECK_MTPTS))) {
+loop:
ObtainReadLock(&afs_xvcache);
for (i = 0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if ((flags & (AFS_VOLCHECK_FORCE | AFS_VOLCHECK_MTPTS))
|| (tvc->mvid
&& inVolList(tvc->mvid, nvols, volumeID, cellID)))
- tvc->states &= ~CMValid;
+ tvc->f.states &= ~CMValid;
/* If the volume that this file belongs to was reset earlier,
* then we should remove its callback.
* Again, if forced, always do it.
*/
- if ((tvc->states & CRO)
- && (inVolList(&tvc->fid, nvols, volumeID, cellID)
+ if ((tvc->f.states & CRO)
+ && (inVolList(&tvc->f.fid, nvols, volumeID, cellID)
|| (flags & AFS_VOLCHECK_FORCE))) {
+ if (tvc->f.states & CVInit) {
+ ReleaseReadLock(&afs_xvcache);
+ afs_osi_Sleep(&tvc->f.states);
+ goto loop;
+ }
+#ifdef AFS_DARWIN80_ENV
+ if (tvc->f.states & CDeadVnode) {
+ ReleaseReadLock(&afs_xvcache);
+ afs_osi_Sleep(&tvc->f.states);
+ goto loop;
+ }
+ tvp = AFSTOV(tvc);
+ if (vnode_get(tvp))
+ continue;
+ if (vnode_ref(tvp)) {
+ AFS_GUNLOCK();
+ /* AFSTOV(tvc) may be NULL */
+ vnode_put(tvp);
+ AFS_GLOCK();
+ continue;
+ }
+#else
AFS_FAST_HOLD(tvc);
+#endif
ReleaseReadLock(&afs_xvcache);
ObtainWriteLock(&afs_xcbhash, 485);
/* LOCKXXX: We aren't holding tvc write lock? */
afs_DequeueCallback(tvc);
- tvc->states &= ~CStatd;
+ tvc->f.states &= ~CStatd;
ReleaseWriteLock(&afs_xcbhash);
- if (tvc->fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
+ if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
osi_dnlc_purgedp(tvc);
+#ifdef AFS_DARWIN80_ENV
+ vnode_put(AFSTOV(tvc));
+ /* our tvc ptr is still good until now */
+ AFS_FAST_RELE(tvc);
+ ObtainReadLock(&afs_xvcache);
+#else
ObtainReadLock(&afs_xvcache);
/* our tvc ptr is still good until now */
AFS_FAST_RELE(tvc);
+#endif
}
}
}
} /*afs_CheckVolumeNames */
+/**
+ * Check if volume is in the specified list.
+ * @param fid File FID.
+ * @param nvols Nomber of volumes???
+ * @param vID Array of volume IDs.
+ * @param cID Array of cache IDs.
+ * @return 1 - true, 0 - false.
+ */
static int
inVolList(struct VenusFid *fid, afs_int32 nvols, afs_int32 * vID,
afs_int32 * cID)
/* afs_PutVolume is now a macro in afs.h */
-/* afs_FindVolume()
- * return volume struct if we have it cached and it's up-to-date
- *
- * Environment: Must be called with afs_xvolume unlocked.
+/**
+ * Return volume struct if we have it cached and it's up-to-date.
+ * Environment: Must be called with afs_xvolume unlocked.
+ * @param afid Volume FID.
+ * @param locktype
+ * @return Volume or NULL if no result.
*/
struct volume *
afs_FindVolume(struct VenusFid *afid, afs_int32 locktype)
-/*
- * Note that areq may be null, in which case we don't bother to set any
+/**
+ * Note that areq may be null, in which case we don't bother to set any
* request status information.
+ * @param afid Volume FID.
+ * @param areq Request type.
+ * @param locktype Lock to be used.
+ * @return Volume or NULL if no result.
*/
struct volume *
afs_GetVolume(struct VenusFid *afid, struct vrequest *areq,
tv = afs_FindVolume(afid, locktype);
if (!tv) {
- if (afs_IsDynrootFid(afid)) {
+ /* Do a dynroot check and add dynroot volume if found. */
+ if (afs_IsDynrootAnyFid(afid)) {
tv = afs_NewDynrootVolume(afid);
} else {
bp = afs_cv2string(&tbuf[CVBS], afid->Fid.Volume);
+/**
+ *
+ * @param volid Volume ID. If it's 0, get it from the name.
+ * @param aname Volume name.
+ * @param ve Volume entry.
+ * @param tcell The cell containing this volume.
+ * @param agood
+ * @param type Type of volume.
+ * @param areq Request.
+ * @return Volume or NULL if failure.
+ */
static struct volume *
-afs_SetupVolume(afs_int32 volid, char *aname, char *ve, struct cell *tcell,
+afs_SetupVolume(afs_int32 volid, char *aname, void *ve, struct cell *tcell,
afs_int32 agood, afs_int32 type, struct vrequest *areq)
{
struct volume *tv;
volid = nve->volumeId[whichType];
} else {
volid = ove->volumeId[whichType];
- }
- }
- }
+ }
+ } /* end of if (volid == 0) */
+ } /* end of if (!volid) */
ObtainWriteLock(&afs_xvolume, 108);
struct fvolume *tf = 0;
tv = afs_GetVolSlot();
- memset((char *)tv, 0, sizeof(struct volume));
+ if (!tv) {
+ ReleaseWriteLock(&afs_xvolume);
+ return NULL;
+ }
+ memset(tv, 0, sizeof(struct volume));
tv->cell = tcell->cellNum;
- RWLOCK_INIT(&tv->lock, "volume lock");
+ AFS_RWLOCK_INIT(&tv->lock, "volume lock");
tv->next = afs_volumes[i]; /* thread into list */
afs_volumes[i] = tv;
tv->volume = volid;
for (j = fvTable[FVHash(tv->cell, volid)]; j != 0; j = tf->next) {
if (afs_FVIndex != j) {
struct osi_file *tfile;
- tfile = osi_UFSOpen(volumeInode);
+ tfile = osi_UFSOpen(&volumeInode);
err =
afs_osi_Read(tfile, sizeof(struct fvolume) * j,
&staticFVolume, sizeof(struct fvolume));
} else {
tv->vtix = -1;
tv->rootVnode = tv->rootUnique = 0;
+ afs_GetDynrootMountFid(&tv->dotdot);
+ afs_GetDynrootMountFid(&tv->mtpoint);
+ tv->mtpoint.Fid.Vnode =
+ VNUM_FROM_TYPEID(VN_TYPE_MOUNT, tcell->cellIndex << 2);
+ tv->mtpoint.Fid.Unique = volid;
}
}
tv->refCount++;
}
+/**
+ * Seek volume by it's name and attributes.
+ * If volume not found, try to add one.
+ * @param aname Volume name.
+ * @param acell Cell
+ * @param agood
+ * @param areq
+ * @param locktype Type of lock to be used.
+ * @return
+ */
struct volume *
afs_GetVolumeByName(register char *aname, afs_int32 acell, int agood,
struct vrequest *areq, afs_int32 locktype)
ReleaseWriteLock(&afs_xvolume);
+ if (AFS_IS_DISCONNECTED)
+ return NULL;
+
tv = afs_NewVolumeByName(aname, acell, agood, areq, locktype);
return (tv);
}
+/**
+ * Init a new dynroot volume.
+ * @param Volume FID.
+ * @return Volume or NULL if not found.
+ */
static struct volume *
afs_NewDynrootVolume(struct VenusFid *fid)
{
}
int lastnvcode;
+
+/**
+ * @param aname Volume name.
+ * @param acell Cell id.
+ * @param agood
+ * @param areq Request type.
+ * @param locktype Type of lock to be used.
+ * @return Volume or NULL if failure.
+ */
static struct volume *
afs_NewVolumeByName(char *aname, afs_int32 acell, int agood,
struct vrequest *areq, afs_int32 locktype)
struct uvldbentry *utve;
struct cell *tcell;
char *tbuffer, *ve;
- struct conn *tconn;
+ struct afs_conn *tconn;
struct vrequest treq;
if (strlen(aname) > VL_MAXNAMELEN) /* Invalid volume name */
tve = (struct vldbentry *)(tbuffer + 1024);
ntve = (struct nvldbentry *)tve;
utve = (struct uvldbentry *)tve;
- afs_InitReq(&treq, &afs_osi_cred); /* *must* be unauth for vldb */
+ afs_InitReq(&treq, afs_osi_credp); /* *must* be unauth for vldb */
do {
tconn =
afs_ConnByMHosts(tcell->cellHosts, tcell->vlport, tcell->cellNum,
* That the client tried and failed can be determined from the
* fact that there was a downtime incident, but CHasVolRef is not set.
*/
+ /* RT 48959 - unclear if this should really go */
+#if 0
if (areq->networkError && !(tcell->states & CHasVolRef)) {
int i;
struct server *sp;
struct srvAddr *sap;
- for (i = 0; i < MAXCELLHOSTS; i++) {
+ for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
if ((sp = tcell->cellHosts[i]) == NULL)
break;
for (sap = sp->addr; sap; sap = sap->next_sa)
afs_MarkServerUpOrDown(sap, 0);
}
}
+#endif
afs_CopyError(&treq, areq);
osi_FreeLargeSpace(tbuffer);
afs_PutCell(tcell, READ_LOCK);
else
ve = (char *)tve;
tv = afs_SetupVolume(0, aname, ve, tcell, agood, type, areq);
- if ((agood == 3) && tv->backVol) {
+ if ((agood == 3) && tv && tv->backVol) {
/*
* This means that very soon we'll ask for the BK volume so
* we'll prefetch it (well we did already.)
*/
tv1 =
afs_SetupVolume(tv->backVol, (char *)0, ve, tcell, 0, type, areq);
- tv1->refCount--;
+ if (tv1) {
+ tv1->refCount--;
+ }
}
- if ((agood >= 2) && tv->roVol) {
+ if ((agood >= 2) && tv && tv->roVol) {
/*
* This means that very soon we'll ask for the RO volume so
* we'll prefetch it (well we did already.)
*/
tv1 = afs_SetupVolume(tv->roVol, NULL, ve, tcell, 0, type, areq);
- tv1->refCount--;
+ if (tv1) {
+ tv1->refCount--;
+ }
}
osi_FreeLargeSpace(tbuffer);
afs_PutCell(tcell, READ_LOCK);
-/* call this with the volume structure locked; used for new-style vldb requests */
+/**
+ * Call this with the volume structure locked; used for new-style vldb requests.
+ * @param av Volume
+ * @param ve
+ * @param acell
+ */
void
InstallVolumeEntry(struct volume *av, struct vldbentry *ve, int acell)
{
* struct, we don't deadlock trying to afs_ResetVolumeInfo()
* this volume.
*/
- for (j = 0; j < MAXHOSTS; j++) {
+ for (j = 0; j < AFS_MAXHOSTS; j++) {
av->serverHost[j] = 0;
}
afs_PutServer(ts, WRITE_LOCK);
j++;
}
- if (j < MAXHOSTS) {
+ if (j < AFS_MAXHOSTS) {
av->serverHost[j++] = 0;
}
- afs_SortServers(av->serverHost, MAXHOSTS);
+ afs_SortServers(av->serverHost, AFS_MAXHOSTS);
} /*InstallVolumeEntry */
* struct, we don't deadlock trying to afs_ResetVolumeInfo()
* this volume.
*/
- for (j = 0; j < MAXHOSTS; j++) {
+ for (j = 0; j < AFS_MAXHOSTS; j++) {
av->serverHost[j] = 0;
}
afs_PutServer(ts, WRITE_LOCK);
j++;
}
- if (j < MAXHOSTS) {
+ if (j < AFS_MAXHOSTS) {
av->serverHost[j++] = 0;
}
- afs_SortServers(av->serverHost, MAXHOSTS);
+ afs_SortServers(av->serverHost, AFS_MAXHOSTS);
} /*InstallNVolumeEntry */
struct cell *tcell, struct vrequest *areq)
{
register struct server *ts;
- struct conn *tconn;
+ struct afs_conn *tconn;
struct cell *cellp;
register int i, j;
afs_uint32 serverid;
* struct, we don't deadlock trying to afs_ResetVolumeInfo()
* this volume.
*/
- for (j = 0; j < MAXHOSTS; j++) {
+ for (j = 0; j < AFS_MAXHOSTS; j++) {
av->serverHost[j] = 0;
}
&& ts->addr) {
/* uuid, uniquifier, and portal are the same */
} else {
- afs_uint32 *addrp, nentries, code, unique;
+ afs_uint32 *addrp, code;
+ afs_int32 nentries, unique;
bulkaddrs addrs;
ListAddrByAttributes attrs;
afsUUID uuid;
- memset((char *)&attrs, 0, sizeof(attrs));
+ memset(&attrs, 0, sizeof(attrs));
attrs.Mask = VLADDR_UUID;
attrs.uuid = ve->serverNumber[i];
- memset((char *)&uuid, 0, sizeof(uuid));
- memset((char *)&addrs, 0, sizeof(addrs));
+ memset(&uuid, 0, sizeof(uuid));
+ memset(&addrs, 0, sizeof(addrs));
do {
tconn =
afs_ConnByMHosts(tcell->cellHosts, tcell->vlport,
ts = afs_GetServer(addrp, nentries, acell, cellp->fsport,
WRITE_LOCK, &ve->serverNumber[i],
ve->serverUnique[i]);
- afs_osi_Free(addrs.bulkaddrs_val,
- addrs.bulkaddrs_len * sizeof(*addrp));
+ xdr_free((xdrproc_t) xdr_bulkaddrs, &addrs);
}
}
av->serverHost[j] = ts;
j++;
}
- afs_SortServers(av->serverHost, MAXHOSTS);
+ afs_SortServers(av->serverHost, AFS_MAXHOSTS);
} /*InstallVolumeEntry */
+/**
+ * Reset volume info for the specified volume strecture. Mark volume
+ * to be rechecked next time.
+ * @param tv
+ */
void
afs_ResetVolumeInfo(struct volume *tv)
{
AFS_STATCNT(afs_ResetVolumeInfo);
ObtainWriteLock(&tv->lock, 117);
tv->states |= VRecheck;
- for (i = 0; i < MAXHOSTS; i++)
+ for (i = 0; i < AFS_MAXHOSTS; i++)
tv->status[i] = not_busy;
if (tv->name) {
afs_osi_Free(tv->name, strlen(tv->name) + 1);
git://git.openafs.org / openafs.git / blobdiff