/*
* 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"
-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_stats.h" /* afs statistics */
+#include "afs/afs_dynroot.h"
-#if defined(AFS_SUN56_ENV)
+#if defined(AFS_SUN5_ENV)
#include <inet/led.h>
#include <inet/common.h>
-#if defined(AFS_SUN58_ENV)
#include <netinet/ip6.h>
-#endif
#include <inet/ip.h>
#endif
#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 */
-static struct volume *afs_NewVolumeByName(char *aname, afs_int32 acell, int agood,
- struct vrequest *areq, afs_int32 locktype);
+static struct volume *afs_NewVolumeByName(char *aname, afs_int32 acell,
+ int agood, struct vrequest *areq,
+ afs_int32 locktype);
static struct volume *afs_NewDynrootVolume(struct VenusFid *fid);
-static int inVolList(struct VenusFid *fid, afs_int32 nvols, afs_int32 *vID, afs_int32 *cID);
+static int inVolList(struct VenusFid *fid, afs_int32 nvols, afs_int32 * vID,
+ afs_int32 * cID);
-/* Convert a volume name to a #; return 0 if can't parse as a number */
-static int afs_vtoi(register char *aname)
+
+/**
+ * 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(char *aname)
{
- register afs_int32 temp;
- register int tc;
+ afs_int32 temp;
+ int tc;
temp = 0;
AFS_STATCNT(afs_vtoi);
- while((tc = *aname++)) {
- if (tc > '9' || tc < '0')
- return 0; /* invalid name */
+ while ((tc = *aname++)) {
+ if (tc > '9' || tc < '0')
+ return 0; /* invalid name */
temp *= 10;
temp += tc - '0';
}
return temp;
-} /*afs_vtoi*/
+} /*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 */
+/*!
+ * Initialize a newly gotten volume slot.
+ *
+ * \param tv volume slot to be initialized
+ * \param tf volume item data; null if none
+ * \param volid volume id for this volume slot
+ * \param cell cell for this volume slot
+ * \return none
+ */
+static void
+afs_InitVolSlot(struct volume *tv, struct fvolume *tf, afs_int32 volid,
+ struct cell *tcell)
+{
+ AFS_STATCNT(afs_InitVolSlot);
+ memset(tv, 0, sizeof(struct volume));
+ tv->cell = tcell->cellNum;
+ AFS_RWLOCK_INIT(&tv->lock, "volume lock");
+ tv->volume = volid;
+ if (tf) {
+ tv->vtix = afs_FVIndex;
+ tv->mtpoint = tf->mtpoint;
+ tv->dotdot = tf->dotdot;
+ tv->rootVnode = tf->rootVnode;
+ tv->rootUnique = tf->rootUnique;
+ } 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;
+ }
+}
-struct volume *afs_UFSGetVolSlot(void)
+/**
+ * UFS specific version of afs_GetVolSlot
+ * @return
+ */
+struct volume *
+afs_UFSGetVolSlot(afs_int32 volid, struct cell *tcell)
{
- register struct volume *tv, **lv;
+ struct volume *tv = NULL, **lv;
struct osi_file *tfile;
- register afs_int32 i, code;
+ 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 */
+ struct fvolume *tf = NULL;
+ int j = 0;
AFS_STATCNT(afs_UFSGetVolSlot);
if (!afs_freeVolList) {
bestTime = 0x7fffffff;
bestVp = 0;
bestLp = 0;
- for (i=0;i<NVOLS;i++) {
+ for (i = 0; i < NVOLS; i++) {
lv = &afs_volumes[i];
for (tv = *lv; tv; lv = &tv->next, tv = *lv) {
- if (tv->refCount == 0) { /* is this one available? */
- if (tv->accessTime < bestTime) { /* best one available? */
+ if (tv->refCount == 0) { /* is this one available? */
+ if (tv->accessTime < bestTime) { /* best one available? */
bestTime = tv->accessTime;
bestLp = lv;
bestVp = tv;
}
}
}
- 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++;
/* now put on hash chain */
i = FVHash(tv->cell, tv->volume);
staticFVolume.next = fvTable[i];
- fvTable[i]=tv->vtix;
- }
- else {
+ fvTable[i] = tv->vtix;
+ } else {
/*
* Haul the guy in from disk so we don't overwrite hash table
* next chain
*/
if (afs_FVIndex != tv->vtix) {
- 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");
+ tfile = osi_UFSOpen(&volumeInode);
+ code =
+ afs_osi_Read(tfile, sizeof(struct fvolume) * tv->vtix,
+ &staticFVolume, sizeof(struct fvolume));
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);
- 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);
- }
- else {
+ tfile = osi_UFSOpen(&volumeInode);
+ code =
+ afs_osi_Write(tfile, sizeof(struct fvolume) * afs_FVIndex,
+ &staticFVolume, sizeof(struct fvolume));
+ 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;
}
+
+ /* read volume item data from disk for the gotten slot */
+ for (j = fvTable[FVHash(tcell->cellNum, volid)]; j != 0; j = tf->next) {
+ if (afs_FVIndex != j) {
+ tfile = osi_UFSOpen(&volumeInode);
+ code =
+ afs_osi_Read(tfile, sizeof(struct fvolume) * j,
+ &staticFVolume, sizeof(struct fvolume));
+ osi_UFSClose(tfile);
+ if (code != sizeof(struct fvolume)) {
+ afs_warn("afs_SetupVolume: error %d reading volumeinfo\n",
+ (int)code);
+ /* put tv back on the free list; the data in it is not valid */
+ tv->next = afs_freeVolList;
+ afs_freeVolList = tv;
+ /* staticFVolume contents are not valid */
+ afs_FVIndex = -1;
+ return NULL;
+ }
+ afs_FVIndex = j;
+ }
+ if (j != 0) { /* volume items record 0 is not used */
+ tf = &staticFVolume;
+ if (tf->cell == tcell->cellNum && tf->volume == volid) {
+ break;
+ }
+ }
+ }
+
+ afs_InitVolSlot(tv, tf, volid, tcell);
return tv;
-} /*afs_UFSGetVolSlot*/
+ error:
+ if (tv) {
+ if (oldvtix == -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 */
-struct volume *afs_MemGetVolSlot(void)
+/**
+ * Get an available volume list slot. If the list does not exist,
+ * create one containing a single element.
+ * @return
+ */
+struct volume *
+afs_MemGetVolSlot(afs_int32 volid, struct cell *tcell)
{
- register struct volume *tv;
+ struct volume *tv;
AFS_STATCNT(afs_MemGetVolSlot);
if (!afs_freeVolList) {
struct volume *newVp;
- newVp = (struct volume *) afs_osi_Alloc(sizeof(struct volume));
+ newVp = afs_osi_Alloc(sizeof(struct volume));
+ osi_Assert(newVp != NULL);
newVp->next = NULL;
afs_freeVolList = newVp;
}
tv = afs_freeVolList;
afs_freeVolList = tv->next;
+
+ afs_InitVolSlot(tv, NULL, volid, tcell);
return tv;
-} /*afs_MemGetVolSlot*/
+} /*afs_MemGetVolSlot */
-/* afs_ResetVolumes()
- * Reset volume inforamation for all volume structs that
- * point to a speicific server.
+/*!
+ * Setup a volume slot for cell:volume.
+ *
+ * Find the volume slot for the cell:volume, otherwise get
+ * and initialize a new slot.
+ *
+ * \param volid volume id
+ * \param cell cell
+ * \return volume
*/
-void afs_ResetVolumes(struct server *srvp)
+static struct volume *
+afs_SetupVolSlot(afs_int32 volid, struct cell *tcell)
{
- int j, k;
- struct volume *vp;
-
- /* 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++) {
- if (!srvp || (vp->serverHost[k] == srvp)) {
- vp->serverHost[k] = 0;
- afs_ResetVolumeInfo(vp);
- break;
- }
+ struct volume *tv;
+ int i;
+
+ AFS_STATCNT(afs_SetupVolSlot);
+ ObtainWriteLock(&afs_xvolume, 108);
+ i = VHash(volid);
+ for (tv = afs_volumes[i]; tv; tv = tv->next) {
+ if (tv->volume == volid && tv->cell == tcell->cellNum) {
+ break;
+ }
+ }
+ if (!tv) {
+ tv = afs_GetVolSlot(volid, tcell);
+ if (!tv) {
+ ReleaseWriteLock(&afs_xvolume);
+ return NULL;
}
- }
- }
+ tv->next = afs_volumes[i]; /* thread into list */
+ afs_volumes[i] = tv;
+ }
+ tv->refCount++;
+ tv->states &= ~VRecheck; /* just checked it */
+ tv->accessTime = osi_Time();
+ ReleaseWriteLock(&afs_xvolume);
+ return tv;
}
+/*!
+ * Reset volume information for all volume structs that
+ * point to a speicific server, skipping a given volume if provided.
+ *
+ * @param[in] srvp
+ * The server to reset volume info about
+ * @param[in] tv
+ * The volume to skip resetting info about
+ */
+void
+afs_ResetVolumes(struct server *srvp, struct volume *tv)
+{
+ int j, k;
+ struct volume *vp;
+
+ /* 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 < AFS_MAXHOSTS; k++) {
+ if (!srvp || (vp->serverHost[k] == srvp)) {
+ if (tv && tv != vp) {
+ vp->serverHost[k] = 0;
+ afs_ResetVolumeInfo(vp);
+ }
+ break;
+ }
+ }
+ }
+ }
+}
-/* reset volume name to volume id mapping cache */
-void afs_CheckVolumeNames(int flags)
+/**
+ * Reset volume name to volume id mapping cache.
+ * @param flags
+ */
+void
+afs_CheckVolumeNames(int flags)
{
- afs_int32 i,j;
+ afs_int32 i, j;
struct volume *tv;
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;
volumeID = cellID = NULL;
- vsize=0;
+ vsize = 0;
ObtainReadLock(&afs_xvolume);
if (flags & AFS_VOLCHECK_EXPIRED) {
/*
* allocate space to hold the volumeIDs and cellIDs, only if
* we will be invalidating the mountpoints later on
*/
- for (i=0; i< NVOLS; i++)
- for (tv = afs_volumes[i]; tv; tv=tv->next)
+ for (i = 0; i < NVOLS; i++)
+ for (tv = afs_volumes[i]; tv; tv = tv->next)
++vsize;
- volumeID = (afs_int32 *) afs_osi_Alloc(2 * vsize * sizeof(*volumeID));
- cellID = (volumeID) ? volumeID + vsize : 0;
+ volumeID = afs_osi_Alloc(2 * vsize * sizeof(*volumeID));
+ cellID = (volumeID) ? volumeID + vsize : 0;
}
now = osi_Time();
- for (i=0;i<NVOLS;i++) {
- for (tv = afs_volumes[i]; tv; tv=tv->next) {
+ for (i = 0; i < NVOLS; i++) {
+ for (tv = afs_volumes[i]; tv; tv = tv->next) {
if (flags & AFS_VOLCHECK_EXPIRED) {
- if ( ((tv->expireTime<(now+10)) && (tv->states & VRO)) ||
- (flags & AFS_VOLCHECK_FORCE)){
- afs_ResetVolumeInfo(tv); /* also resets status */
+ if (((tv->expireTime < (now + 10)) && (tv->states & VRO))
+ || (flags & AFS_VOLCHECK_FORCE)) {
+ afs_ResetVolumeInfo(tv); /* also resets status */
if (volumeID) {
volumeID[nvols] = tv->volume;
- cellID[nvols] = tv->cell;
+ cellID[nvols] = tv->cell;
}
++nvols;
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) {
+ for (i = 0; i < VCSIZE; i++) {
+ for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
/* if the volume of "mvid" of the vcache entry is among the
- * ones we found earlier, then we re-evaluate it. Also, if the
- * force bit is set or we explicitly asked to reevaluate the
- * mt-pts, we clean the cmvalid bit */
+ * ones we found earlier, then we re-evaluate it. Also, if the
+ * force bit is set or we explicitly asked to reevaluate the
+ * mt-pts, we clean the cmvalid bit */
- if ((flags & (AFS_VOLCHECK_FORCE | AFS_VOLCHECK_MTPTS)) ||
- (tvc->mvid &&
- inVolList(tvc->mvid, nvols, volumeID, cellID)))
- tvc->states &= ~CMValid;
+ if ((flags & (AFS_VOLCHECK_FORCE | AFS_VOLCHECK_MTPTS))
+ || (tvc->mvid
+ && inVolList(tvc->mvid, nvols, volumeID, cellID)))
+ 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) ||
- (flags & AFS_VOLCHECK_FORCE))) {
-
+ 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
}
}
}
- osi_dnlc_purge (); /* definitely overkill, but it's safer this way. */
+ osi_dnlc_purge(); /* definitely overkill, but it's safer this way. */
ReleaseReadLock(&afs_xvcache);
}
if (volumeID)
afs_osi_Free(volumeID, 2 * vsize * sizeof(*volumeID));
-} /*afs_CheckVolumeNames*/
+} /*afs_CheckVolumeNames */
-static int inVolList(struct VenusFid *fid, afs_int32 nvols, afs_int32 *vID, afs_int32 *cID)
+/**
+ * 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_int32 i;
/* if no arrays present, be conservative and return true */
- if ( nvols && (!vID || !cID))
+ if (nvols && (!vID || !cID))
return 1;
- for (i=0; i< nvols; ++i) {
+ for (i = 0; i < nvols; ++i) {
if (fid->Fid.Volume == vID[i] && fid->Cell == cID[i])
return 1;
}
/* 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)
+struct volume *
+afs_FindVolume(struct VenusFid *afid, afs_int32 locktype)
{
struct volume *tv;
afs_int32 i;
return NULL;
i = VHash(afid->Fid.Volume);
- ObtainWriteLock(&afs_xvolume,106);
- for (tv = afs_volumes[i]; tv; tv=tv->next) {
+ ObtainWriteLock(&afs_xvolume, 106);
+ for (tv = afs_volumes[i]; tv; tv = tv->next) {
if (tv->volume == afid->Fid.Volume && tv->cell == afid->Cell
&& (tv->states & VRecheck) == 0) {
tv->refCount++;
break;
- }
+ }
}
ReleaseWriteLock(&afs_xvolume);
- return tv; /* NULL if we didn't find it */
-} /*afs_FindVolume*/
+ return tv; /* NULL if we didn't find it */
+} /*afs_FindVolume */
-/*
- * 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,
- afs_int32 locktype)
+struct volume *
+afs_GetVolume(struct VenusFid *afid, struct vrequest *areq,
+ afs_int32 locktype)
{
struct volume *tv;
char *bp, tbuf[CVBS];
tv = afs_FindVolume(afid, locktype);
if (!tv) {
- if (afs_IsDynrootFid(afid)) {
- tv = afs_NewDynrootVolume(afid);
- } else {
- bp = afs_cv2string(&tbuf[CVBS], afid->Fid.Volume);
- tv = afs_NewVolumeByName(bp, afid->Cell, 0, areq, locktype);
- }
+ /* 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);
+ tv = afs_NewVolumeByName(bp, afid->Cell, 0, areq, locktype);
+ }
}
return tv;
-} /*afs_GetVolume*/
+} /*afs_GetVolume */
-static struct volume *afs_SetupVolume(afs_int32 volid, char *aname,
- char *ve, struct cell *tcell, afs_int32 agood, afs_int32 type, struct vrequest *areq)
+/**
+ *
+ * @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, void *ve, struct cell *tcell,
+ afs_int32 agood, afs_int32 type, struct vrequest *areq)
{
struct volume *tv;
struct vldbentry *ove = (struct vldbentry *)ve;
struct nvldbentry *nve = (struct nvldbentry *)ve;
struct uvldbentry *uve = (struct uvldbentry *)ve;
- int whichType; /* which type of volume to look for */
- int i, j, err=0;
+ int whichType; /* which type of volume to look for */
+ int i;
if (!volid) {
- int len;
+ int len;
/* special hint from file server to use vlserver */
len = strlen(aname);
- if (len >= 8 && strcmp(aname+len-7, ".backup") == 0)
+ if (len >= 8 && strcmp(aname + len - 7, ".backup") == 0)
whichType = BACKVOL;
- else if (len >= 10 && strcmp(aname+len-9, ".readonly")==0)
+ else if (len >= 10 && strcmp(aname + len - 9, ".readonly") == 0)
whichType = ROVOL;
- else
+ else
whichType = RWVOL;
/* figure out which one we're really interested in (a set is returned) */
if (volid == 0) {
if (type == 2) {
volid = uve->volumeId[whichType];
- }
- else if (type == 1) {
+ } else if (type == 1) {
volid = nve->volumeId[whichType];
- }
- else {
+ } else {
volid = ove->volumeId[whichType];
}
- }
- }
+ } /* end of if (volid == 0) */
+ } /* end of if (!volid) */
-
- ObtainWriteLock(&afs_xvolume,108);
- i = VHash(volid);
- for (tv = afs_volumes[i]; tv; tv=tv->next) {
- if (tv->volume == volid && tv->cell == tcell->cellNum) {
- break;
- }
- }
+ tv = afs_SetupVolSlot(volid, tcell);
if (!tv) {
- struct fvolume *tf=0;
-
- tv = afs_GetVolSlot();
- memset((char *)tv, 0, sizeof(struct volume));
- tv->cell = tcell->cellNum;
- 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);
- err = afs_osi_Read(tfile, sizeof(struct fvolume) * j, &staticFVolume, sizeof(struct fvolume));
- if (err != sizeof(struct fvolume))
- osi_Panic("read volumeinfo2");
- osi_UFSClose(tfile);
- afs_FVIndex = j;
- }
- tf = &staticFVolume;
- if (tf->cell == tv->cell && tf->volume == volid)
- break;
- }
- if (tf && (j != 0)) {
- tv->vtix = afs_FVIndex;
- tv->mtpoint = tf->mtpoint;
- tv->dotdot = tf->dotdot;
- tv->rootVnode = tf->rootVnode;
- tv->rootUnique = tf->rootUnique;
- } else {
- tv->vtix = -1;
- tv->rootVnode = tv->rootUnique = 0;
- }
+ return NULL;
}
- tv->refCount++;
- tv->states &= ~VRecheck; /* just checked it */
- tv->accessTime = osi_Time();
- ReleaseWriteLock(&afs_xvolume);
- ObtainWriteLock(&tv->lock,111);
+
if (type == 2) {
- InstallUVolumeEntry(tv, uve, tcell->cellNum, tcell, areq);
- }
- else if (type == 1)
- InstallNVolumeEntry(tv, nve, tcell->cellNum);
+ LockAndInstallUVolumeEntry(tv, uve, tcell->cellNum, tcell, areq);
+ } else if (type == 1)
+ LockAndInstallNVolumeEntry(tv, nve, tcell->cellNum);
else
- InstallVolumeEntry(tv, ove, tcell->cellNum);
+ LockAndInstallVolumeEntry(tv, ove, tcell->cellNum);
if (agood) {
if (!tv->name) {
tv->name = afs_osi_Alloc(strlen(aname) + 1);
+ osi_Assert(tv->name != NULL);
strcpy(tv->name, aname);
}
}
- for (i=0; i<NMAXNSERVERS; i++) {
- tv->status[i] = not_busy;
+ for (i = 0; i < NMAXNSERVERS; i++) {
+ tv->status[i] = not_busy;
}
ReleaseWriteLock(&tv->lock);
return tv;
}
-struct volume *afs_GetVolumeByName(register char *aname, afs_int32 acell,
- int agood, struct vrequest *areq, afs_int32 locktype)
+/**
+ * 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(char *aname, afs_int32 acell, int agood,
+ struct vrequest *areq, afs_int32 locktype)
{
- afs_int32 i;
- struct volume *tv;
+ afs_int32 i;
+ struct volume *tv;
AFS_STATCNT(afs_GetVolumeByName);
- ObtainWriteLock(&afs_xvolume,112);
- for (i=0;i<NVOLS;i++) {
- for (tv = afs_volumes[i]; tv; tv=tv->next) {
- if (tv->name && !strcmp(aname,tv->name) && tv->cell == acell
- && (tv->states&VRecheck) == 0) {
+ ObtainWriteLock(&afs_xvolume, 112);
+ for (i = 0; i < NVOLS; i++) {
+ for (tv = afs_volumes[i]; tv; tv = tv->next) {
+ if (tv->name && !strcmp(aname, tv->name) && tv->cell == acell
+ && (tv->states & VRecheck) == 0) {
tv->refCount++;
ReleaseWriteLock(&afs_xvolume);
return tv;
ReleaseWriteLock(&afs_xvolume);
- tv = afs_NewVolumeByName(aname, acell, agood, areq, locktype);
- return(tv);
+ if (AFS_IS_DISCONNECTED)
+ return NULL;
+
+ tv = afs_NewVolumeByName(aname, acell, agood, areq, locktype);
+ return (tv);
}
-static struct volume *afs_NewDynrootVolume(struct VenusFid *fid)
+/**
+ * Init a new dynroot volume.
+ * @param Volume FID.
+ * @return Volume or NULL if not found.
+ */
+static struct volume *
+afs_NewDynrootVolume(struct VenusFid *fid)
{
struct cell *tcell;
struct volume *tv;
if (!tcell)
return NULL;
tve = afs_osi_Alloc(sizeof(*tve));
+ osi_Assert(tve != NULL);
if (!(tcell->states & CHasVolRef))
tcell->states |= CHasVolRef;
}
int lastnvcode;
-static struct volume *afs_NewVolumeByName(char *aname, afs_int32 acell, int agood,
- struct vrequest *areq, afs_int32 locktype)
+
+/**
+ * @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)
{
- afs_int32 code, type=0;
+ afs_int32 code, type = 0;
struct volume *tv, *tv1;
struct vldbentry *tve;
struct nvldbentry *ntve;
struct uvldbentry *utve;
struct cell *tcell;
char *tbuffer, *ve;
- struct conn *tconn;
+ struct afs_conn *tconn;
struct vrequest treq;
+ struct rx_connection *rxconn;
if (strlen(aname) > VL_MAXNAMELEN) /* Invalid volume name */
return NULL;
}
/* allow null request if we don't care about ENODEV/ETIMEDOUT distinction */
- if (!areq) areq = &treq;
+ if (!areq)
+ areq = &treq;
afs_Trace2(afs_iclSetp, CM_TRACE_GETVOL, ICL_TYPE_STRING, aname,
- ICL_TYPE_POINTER, aname);
+ ICL_TYPE_POINTER, aname);
tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
- tve = (struct vldbentry *) (tbuffer+1024);
+ 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, &treq, SHARED_LOCK);
+ tconn =
+ afs_ConnByMHosts(tcell->cellHosts, tcell->vlport, tcell->cellNum,
+ &treq, SHARED_LOCK, 0, &rxconn);
if (tconn) {
- if (tconn->srvr->server->flags & SNO_LHOSTS) {
+ if (tconn->parent->srvr->server->flags & SNO_LHOSTS) {
type = 0;
RX_AFS_GUNLOCK();
- code = VL_GetEntryByNameO(tconn->id, aname, tve);
+ code = VL_GetEntryByNameO(rxconn, aname, tve);
RX_AFS_GLOCK();
- } else if (tconn->srvr->server->flags & SYES_LHOSTS) {
+ } else if (tconn->parent->srvr->server->flags & SYES_LHOSTS) {
type = 1;
RX_AFS_GUNLOCK();
- code = VL_GetEntryByNameN(tconn->id, aname, ntve);
+ code = VL_GetEntryByNameN(rxconn, aname, ntve);
RX_AFS_GLOCK();
} else {
type = 2;
RX_AFS_GUNLOCK();
- code = VL_GetEntryByNameU(tconn->id, aname, utve);
+ code = VL_GetEntryByNameU(rxconn, aname, utve);
RX_AFS_GLOCK();
- if (!(tconn->srvr->server->flags & SVLSRV_UUID)) {
+ if (!(tconn->parent->srvr->server->flags & SVLSRV_UUID)) {
if (code == RXGEN_OPCODE) {
type = 1;
RX_AFS_GUNLOCK();
- code = VL_GetEntryByNameN(tconn->id, aname, ntve);
+ code = VL_GetEntryByNameN(rxconn, aname, ntve);
RX_AFS_GLOCK();
if (code == RXGEN_OPCODE) {
type = 0;
- tconn->srvr->server->flags |= SNO_LHOSTS;
+ tconn->parent->srvr->server->flags |= SNO_LHOSTS;
RX_AFS_GUNLOCK();
- code = VL_GetEntryByNameO(tconn->id, aname, tve);
+ code = VL_GetEntryByNameO(rxconn, aname, tve);
RX_AFS_GLOCK();
} else if (!code)
- tconn->srvr->server->flags |= SYES_LHOSTS;
+ tconn->parent->srvr->server->flags |= SYES_LHOSTS;
} else if (!code)
- tconn->srvr->server->flags |= SVLSRV_UUID;
+ tconn->parent->srvr->server->flags |= SVLSRV_UUID;
}
lastnvcode = code;
}
} else
code = -1;
- } while
- (afs_Analyze(tconn, code, NULL, &treq,
- -1, /* no op code for this */
- SHARED_LOCK, tcell));
+ } while (afs_Analyze(tconn, rxconn, code, NULL, &treq, -1, /* no op code for this */
+ SHARED_LOCK, tcell));
if (code) {
/* If the client has yet to contact this cell and contact failed due
* 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++) {
- if ((sp = tcell->cellHosts[i]) == NULL) break;
+ 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);
if (!(tcell->states & CHasVolRef)) {
tcell->states |= CHasVolRef;
afs_stats_cmperf.numCellsContacted++;
- } /*First time a volume in this cell has been referenced*/
-
+ }
+ /*First time a volume in this cell has been referenced */
if (type == 2)
ve = (char *)utve;
else if (type == 1)
ve = (char *)ntve;
else
ve = (char *)tve;
- tv = afs_SetupVolume(0, aname, ve, tcell, agood, type, areq);
- if ((agood == 2) && tv->roVol) {
+ tv = afs_SetupVolume(0, aname, ve, tcell, agood, type, &treq);
+ 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, &treq);
+ if (tv1) {
+ tv1->refCount--;
+ }
+ }
+ 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--;
+ tv1 = afs_SetupVolume(tv->roVol, NULL, ve, tcell, 0, type, &treq);
+ if (tv1) {
+ tv1->refCount--;
+ }
}
osi_FreeLargeSpace(tbuffer);
afs_PutCell(tcell, READ_LOCK);
return tv;
-} /*afs_NewVolumeByName*/
+} /*afs_NewVolumeByName */
-/* call this with the volume structure locked; used for new-style vldb requests */
-void InstallVolumeEntry(struct volume *av, struct vldbentry *ve, int acell)
+/**
+ * Call this with the volume structure locked; used for new-style vldb requests.
+ * @param av Volume
+ * @param ve
+ * @param acell
+ */
+void
+LockAndInstallVolumeEntry(struct volume *av, struct vldbentry *ve, int acell)
{
- register struct server *ts;
+ struct server *ts;
struct cell *cellp;
- register int i, j;
+ int i, j;
afs_int32 mask;
afs_uint32 temp;
+ char types = 0;
+ struct server *serverHost[AFS_MAXHOSTS];
AFS_STATCNT(InstallVolumeEntry);
+ memset(serverHost, 0, sizeof(serverHost));
+
/* Determine the type of volume we want */
if ((ve->flags & VLF_RWEXISTS) && (av->volume == ve->volumeId[RWVOL])) {
- mask = VLSF_RWVOL;
- }
- else if ((ve->flags & VLF_ROEXISTS) && (av->volume == ve->volumeId[ROVOL])) {
- mask = VLSF_ROVOL;
- av->states |= VRO;
- }
- else if ((ve->flags & VLF_BACKEXISTS) && (av->volume == ve->volumeId[BACKVOL])) {
- /* backup always is on the same volume as parent */
- mask = VLSF_RWVOL;
- av->states |= (VRO|VBackup);
- }
- else {
- mask = 0; /* Can't find volume in vldb entry */
+ mask = VLSF_RWVOL;
+ } else if ((ve->flags & VLF_ROEXISTS)
+ && (av->volume == ve->volumeId[ROVOL])) {
+ mask = VLSF_ROVOL;
+ types |= VRO;
+ } else if ((ve->flags & VLF_BACKEXISTS)
+ && (av->volume == ve->volumeId[BACKVOL])) {
+ /* backup always is on the same volume as parent */
+ mask = VLSF_RWVOL;
+ types |= (VRO | VBackup);
+ } else {
+ mask = 0; /* Can't find volume in vldb entry */
}
- /* fill in volume types */
- av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
- av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
- av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
-
- if (ve->flags & VLF_DFSFILESET)
- av->states |= VForeign;
-
cellp = afs_GetCell(acell, 0);
- /* This volume, av, is locked. Zero out the serverHosts[] array
- * so that if afs_GetServer() decides to replace the server
- * struct, we don't deadlock trying to afs_ResetVolumeInfo()
- * this volume.
- */
- for (j=0; j<MAXHOSTS; j++) {
- av->serverHost[j] = 0;
- }
-
/* Step through the VLDB entry making sure each server listed is there */
- for (i=0,j=0; i<ve->nServers; i++) {
- if ( ((ve->serverFlags[i] & mask) == 0) || (ve->serverFlags[i] & VLSF_DONTUSE) ) {
- continue; /* wrong volume or don't use this volume */
+ for (i = 0, j = 0; i < ve->nServers; i++) {
+ if (((ve->serverFlags[i] & mask) == 0)
+ || (ve->serverFlags[i] & VLSF_DONTUSE)) {
+ continue; /* wrong volume or don't use this volume */
}
temp = htonl(ve->serverNumber[i]);
- ts = afs_GetServer(&temp, 1, acell, cellp->fsport, WRITE_LOCK, (afsUUID *)0, 0);
- av->serverHost[j] = ts;
+ ts = afs_GetServer(&temp, 1, acell, cellp->fsport, WRITE_LOCK,
+ (afsUUID *) 0, 0, av);
+ serverHost[j] = ts;
/*
* The cell field could be 0 if the server entry was created
* follows later on it will find the server entry thus it will
* simply return without setting any fields, so we set the
* field ourselves below.
- */
+ */
if (!ts->cell)
ts->cell = cellp;
afs_PutServer(ts, WRITE_LOCK);
j++;
}
- if (j < MAXHOSTS) {
- av->serverHost[j++] = 0;
- }
- afs_SortServers(av->serverHost, MAXHOSTS);
-} /*InstallVolumeEntry*/
+
+ ObtainWriteLock(&av->lock, 109);
+
+ memcpy(av->serverHost, serverHost, sizeof(serverHost));
+
+ /* from above */
+ av->states |= types;
+
+ /* fill in volume types */
+ av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
+ av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
+ av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
+
+ if (ve->flags & VLF_DFSFILESET)
+ av->states |= VForeign;
+
+ afs_SortServers(av->serverHost, AFS_MAXHOSTS);
+} /*InstallVolumeEntry */
-void InstallNVolumeEntry(struct volume *av, struct nvldbentry *ve, int acell)
+void
+LockAndInstallNVolumeEntry(struct volume *av, struct nvldbentry *ve, int acell)
{
- register struct server *ts;
+ struct server *ts;
struct cell *cellp;
- register int i, j;
+ int i, j;
afs_int32 mask;
afs_uint32 temp;
+ char types = 0;
+ struct server *serverHost[AFS_MAXHOSTS];
AFS_STATCNT(InstallVolumeEntry);
+ memset(serverHost, 0, sizeof(serverHost));
+
/* Determine type of volume we want */
if ((ve->flags & VLF_RWEXISTS) && (av->volume == ve->volumeId[RWVOL])) {
- mask = VLSF_RWVOL;
- }
- else if ((ve->flags & VLF_ROEXISTS) && (av->volume == ve->volumeId[ROVOL])) {
- mask = VLSF_ROVOL;
- av->states |= VRO;
- }
- else if ((ve->flags&VLF_BACKEXISTS) && (av->volume == ve->volumeId[BACKVOL])) {
- /* backup always is on the same volume as parent */
- mask = VLSF_RWVOL;
- av->states |= (VRO|VBackup);
- }
- else {
- mask = 0; /* Can't find volume in vldb entry */
+ mask = VLSF_RWVOL;
+ } else if ((ve->flags & VLF_ROEXISTS)
+ && (av->volume == ve->volumeId[ROVOL])) {
+ mask = VLSF_ROVOL;
+ types |= VRO;
+ } else if ((ve->flags & VLF_BACKEXISTS)
+ && (av->volume == ve->volumeId[BACKVOL])) {
+ /* backup always is on the same volume as parent */
+ mask = VLSF_RWVOL;
+ types |= (VRO | VBackup);
+ } else {
+ mask = 0; /* Can't find volume in vldb entry */
}
- /* fill in volume types */
- av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
- av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
- av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
-
- if (ve->flags & VLF_DFSFILESET)
- av->states |= VForeign;
-
cellp = afs_GetCell(acell, 0);
- /* This volume, av, is locked. Zero out the serverHosts[] array
- * so that if afs_GetServer() decides to replace the server
- * struct, we don't deadlock trying to afs_ResetVolumeInfo()
- * this volume.
- */
- for (j=0; j<MAXHOSTS; j++) {
- av->serverHost[j] = 0;
- }
-
/* Step through the VLDB entry making sure each server listed is there */
- for (i=0,j=0; i<ve->nServers; i++) {
- if ( ((ve->serverFlags[i] & mask) == 0) || (ve->serverFlags[i] & VLSF_DONTUSE) ) {
- continue; /* wrong volume or don't use this volume */
+ for (i = 0, j = 0; i < ve->nServers; i++) {
+ if (((ve->serverFlags[i] & mask) == 0)
+ || (ve->serverFlags[i] & VLSF_DONTUSE)) {
+ continue; /* wrong volume or don't use this volume */
}
temp = htonl(ve->serverNumber[i]);
- ts = afs_GetServer(&temp, 1, acell, cellp->fsport, WRITE_LOCK, (afsUUID *)0,0);
- av->serverHost[j] = ts;
+ ts = afs_GetServer(&temp, 1, acell, cellp->fsport, WRITE_LOCK,
+ (afsUUID *) 0, 0, av);
+ serverHost[j] = ts;
/*
* The cell field could be 0 if the server entry was created
* first with the 'fs setserverprefs' call which doesn't set
* follows later on it will find the server entry thus it will
* simply return without setting any fields, so we set the
* field ourselves below.
- */
+ */
if (!ts->cell)
ts->cell = cellp;
afs_PutServer(ts, WRITE_LOCK);
j++;
}
- if (j < MAXHOSTS) {
- av->serverHost[j++] = 0;
- }
- afs_SortServers(av->serverHost, MAXHOSTS);
-} /*InstallNVolumeEntry*/
+ ObtainWriteLock(&av->lock, 110);
+
+ memcpy(av->serverHost, serverHost, sizeof(serverHost));
-void InstallUVolumeEntry(struct volume *av, struct uvldbentry *ve,
- int acell, struct cell *tcell, struct vrequest *areq)
+ /* from above */
+ av->states |= types;
+
+ /* fill in volume types */
+ av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
+ av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
+ av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
+
+ if (ve->flags & VLF_DFSFILESET)
+ av->states |= VForeign;
+
+ afs_SortServers(av->serverHost, AFS_MAXHOSTS);
+} /*InstallNVolumeEntry */
+
+
+void
+LockAndInstallUVolumeEntry(struct volume *av, struct uvldbentry *ve, int acell,
+ struct cell *tcell, struct vrequest *areq)
{
- register struct server *ts;
- struct conn *tconn;
+ struct server *ts;
+ struct afs_conn *tconn;
struct cell *cellp;
- register int i, j;
+ int i, j;
afs_uint32 serverid;
afs_int32 mask;
int k;
+ char type = 0;
+ struct server *serverHost[AFS_MAXHOSTS];
AFS_STATCNT(InstallVolumeEntry);
+ memset(serverHost, 0, sizeof(serverHost));
+
/* Determine type of volume we want */
if ((ve->flags & VLF_RWEXISTS) && (av->volume == ve->volumeId[RWVOL])) {
- mask = VLSF_RWVOL;
- }
- else if ((ve->flags & VLF_ROEXISTS) && av->volume == ve->volumeId[ROVOL]) {
- mask = VLSF_ROVOL;
- av->states |= VRO;
- }
- else if ((ve->flags & VLF_BACKEXISTS) && (av->volume == ve->volumeId[BACKVOL])) {
- /* backup always is on the same volume as parent */
- mask = VLSF_RWVOL;
- av->states |= (VRO|VBackup);
- }
- else {
- mask = 0; /* Can't find volume in vldb entry */
+ mask = VLSF_RWVOL;
+ } else if ((ve->flags & VLF_ROEXISTS)
+ && av->volume == ve->volumeId[ROVOL]) {
+ mask = VLSF_ROVOL;
+ type |= VRO;
+ } else if ((ve->flags & VLF_BACKEXISTS)
+ && (av->volume == ve->volumeId[BACKVOL])) {
+ /* backup always is on the same volume as parent */
+ mask = VLSF_RWVOL;
+ type |= (VRO | VBackup);
+ } else {
+ mask = 0; /* Can't find volume in vldb entry */
}
- /* fill in volume types */
- av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
- av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
- av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
-
- if (ve->flags & VLF_DFSFILESET)
- av->states |= VForeign;
-
cellp = afs_GetCell(acell, 0);
- /* This volume, av, is locked. Zero out the serverHosts[] array
- * so that if afs_GetServer() decides to replace the server
- * struct, we don't deadlock trying to afs_ResetVolumeInfo()
- * this volume.
- */
- for (j=0; j<MAXHOSTS; j++) {
- av->serverHost[j] = 0;
- }
-
/* Gather the list of servers the VLDB says the volume is on
* and initialize the ve->serverHost[] array. If a server struct
* is not found, then get the list of addresses for the
* server, VL_GetAddrsU(), and create a server struct, afs_GetServer().
*/
- for (i=0,j=0; i<ve->nServers; i++) {
- if ( ((ve->serverFlags[i] & mask) == 0) || (ve->serverFlags[i] & VLSF_DONTUSE) ) {
- continue; /* wrong volume don't use this volume */
+ for (i = 0, j = 0; i < ve->nServers; i++) {
+ if (((ve->serverFlags[i] & mask) == 0)
+ || (ve->serverFlags[i] & VLSF_DONTUSE)) {
+ continue; /* wrong volume don't use this volume */
}
- if (!(ve->serverFlags[i] & VLSERVER_FLAG_UUID)) {
+ if (!(ve->serverFlags[i] & VLSF_UUID)) {
/* The server has no uuid */
serverid = htonl(ve->serverNumber[i].time_low);
- ts = afs_GetServer(&serverid, 1, acell, cellp->fsport, WRITE_LOCK, (afsUUID *)0,0);
+ ts = afs_GetServer(&serverid, 1, acell, cellp->fsport,
+ WRITE_LOCK, (afsUUID *) 0, 0, av);
} else {
ts = afs_FindServer(0, cellp->fsport, &ve->serverNumber[i], 0);
- if (ts && (ts->sr_addr_uniquifier == ve->serverUnique[i]) && ts->addr) {
- /* uuid, uniquifier, and portal are the same */
+ if (ts && (ts->sr_addr_uniquifier == ve->serverUnique[i])
+ && 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;
+ struct rx_connection *rxconn;
- 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,
- tcell->cellNum, areq, SHARED_LOCK);
+ tconn =
+ afs_ConnByMHosts(tcell->cellHosts, tcell->vlport,
+ tcell->cellNum, areq, SHARED_LOCK,
+ 0, &rxconn);
if (tconn) {
RX_AFS_GUNLOCK();
- code = VL_GetAddrsU(tconn->id, &attrs, &uuid, &unique, &nentries, &addrs);
+ code =
+ VL_GetAddrsU(rxconn, &attrs, &uuid, &unique,
+ &nentries, &addrs);
RX_AFS_GLOCK();
} else {
code = -1;
if (code == 0 && nentries == 0)
code = VL_NOENT;
- } while (afs_Analyze(tconn, code, NULL, areq,
- -1, SHARED_LOCK, tcell));
+ } while (afs_Analyze
+ (tconn, rxconn, code, NULL, areq, -1, SHARED_LOCK, tcell));
if (code) {
/* Better handing of such failures; for now we'll simply retry this call */
areq->volumeError = 1;
addrp = addrs.bulkaddrs_val;
for (k = 0; k < nentries; k++) {
- addrp[k] = htonl(addrp[k]);
+ addrp[k] = htonl(addrp[k]);
}
- 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));
+ ts = afs_GetServer(addrp, nentries, acell,
+ cellp->fsport, WRITE_LOCK,
+ &ve->serverNumber[i],
+ ve->serverUnique[i], av);
+ xdr_free((xdrproc_t) xdr_bulkaddrs, &addrs);
}
}
- av->serverHost[j] = ts;
+ serverHost[j] = ts;
/* The cell field could be 0 if the server entry was created
* first with the 'fs setserverprefs' call which doesn't set
* follows later on it will find the server entry thus it will
* simply return without setting any fields, so we set the
* field ourselves below.
- */
+ */
if (!ts->cell)
ts->cell = cellp;
afs_PutServer(ts, WRITE_LOCK);
j++;
}
- afs_SortServers(av->serverHost, MAXHOSTS);
-} /*InstallVolumeEntry*/
+ ObtainWriteLock(&av->lock, 111);
+
+ memcpy(av->serverHost, serverHost, sizeof(serverHost));
+ /* from above */
+ av->states |= type;
-void afs_ResetVolumeInfo(struct volume *tv)
+ /* fill in volume types */
+ av->rwVol = ((ve->flags & VLF_RWEXISTS) ? ve->volumeId[RWVOL] : 0);
+ av->roVol = ((ve->flags & VLF_ROEXISTS) ? ve->volumeId[ROVOL] : 0);
+ av->backVol = ((ve->flags & VLF_BACKEXISTS) ? ve->volumeId[BACKVOL] : 0);
+
+ if (ve->flags & VLF_DFSFILESET)
+ av->states |= VForeign;
+
+ 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)
{
int i;
AFS_STATCNT(afs_ResetVolumeInfo);
- ObtainWriteLock(&tv->lock,117);
+ ObtainWriteLock(&tv->lock, 117);
tv->states |= VRecheck;
- for (i=0; i<MAXHOSTS; i++)
- tv->status[i] = not_busy;
+
+ /* the hard-mount code in afs_Analyze may not be able to reset this flag
+ * when VRecheck is set, so clear it here to ensure it gets cleared. */
+ tv->states &= ~VHardMount;
+
+ for (i = 0; i < AFS_MAXHOSTS; i++)
+ tv->status[i] = not_busy;
if (tv->name) {
- afs_osi_Free(tv->name, strlen(tv->name)+1);
+ afs_osi_Free(tv->name, strlen(tv->name) + 1);
tv->name = NULL;
- }
+ }
ReleaseWriteLock(&tv->lock);
}
git://git.openafs.org / openafs.git / blobdiff