/*
* Implements:
- * afs_Wire (DUX)
* FetchWholeEnchilada
- * afs_IsWired (DUX)
* afsremove
* afs_remove
* afs_newname
#include <afsconfig.h>
#include "afs/param.h"
-RCSID
- ("$Header$");
#include "afs/sysincludes.h" /* Standard vendor system headers */
#include "afsincludes.h" /* Afs-based standard headers */
extern afs_rwlock_t afs_xcbhash;
-#ifdef AFS_OSF_ENV
-/*
- * Wire down file in cache: prefetch all data, and turn on CWired flag
- * so that callbacks/callback expirations are (temporarily) ignored
- * and cache file(s) are kept in cache. File will be unwired when
- * afs_inactive is called (ie no one has VN_HOLD on vnode), or when
- * afs_IsWired notices that the file is no longer Active.
- */
-afs_Wire(avc, areq)
-#else /* AFS_OSF_ENV */
static void
-FetchWholeEnchilada(avc, areq)
-#endif
- struct vrequest *areq;
- register struct vcache *avc;
+FetchWholeEnchilada(struct vcache *avc, struct vrequest *areq)
{
- register afs_int32 nextChunk;
- register struct dcache *tdc;
+ afs_int32 nextChunk;
+ struct dcache *tdc;
afs_size_t pos, offset, len;
AFS_STATCNT(FetchWholeEnchilada);
- if ((avc->states & CStatd) == 0)
+ if ((avc->f.states & CStatd) == 0)
return; /* don't know size */
for (nextChunk = 0; nextChunk < 1024; nextChunk++) { /* sanity check on N chunks */
pos = AFS_CHUNKTOBASE(nextChunk);
-#if defined(AFS_OSF_ENV)
- if (pos >= avc->m.Length)
- break; /* all done */
-#else /* AFS_OSF_ENV */
- if (pos >= avc->m.Length)
+ if (pos >= avc->f.m.Length)
return; /* all done */
-#endif
tdc = afs_GetDCache(avc, pos, areq, &offset, &len, 0);
if (!tdc)
-#if defined(AFS_OSF_ENV)
- break;
-#else /* AFS_OSF_ENV */
return;
-#endif
afs_PutDCache(tdc);
}
-#if defined(AFS_OSF_ENV)
- avc->states |= CWired;
-#endif /* AFS_OSF_ENV */
-}
-
-#if defined(AFS_OSF_ENV)
-/*
- * Tests whether file is wired down, after unwiring the file if it
- * is found to be inactive (ie not open and not being paged from).
- */
-afs_IsWired(avc)
- register struct vcache *avc;
-{
- if (avc->states & CWired) {
- if (osi_Active(avc)) {
- return 1;
- }
- avc->states &= ~CWired;
- }
- return 0;
}
-#endif /* AFS_OSF_ENV */
int
-afsremove(register struct vcache *adp, register struct dcache *tdc,
- register struct vcache *tvc, char *aname, struct AFS_UCRED *acred,
+afsremove(struct vcache *adp, struct dcache *tdc,
+ struct vcache *tvc, char *aname, afs_ucred_t *acred,
struct vrequest *treqp)
{
- register afs_int32 code;
- register struct conn *tc;
+ afs_int32 code = 0;
+ struct afs_conn *tc;
struct AFSFetchStatus OutDirStatus;
struct AFSVolSync tsync;
+ struct rx_connection *rxconn;
XSTATS_DECLS;
- do {
- tc = afs_Conn(&adp->fid, treqp, SHARED_LOCK);
- if (tc) {
- XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
- RX_AFS_GUNLOCK();
- code =
- RXAFS_RemoveFile(tc->id, (struct AFSFid *)&adp->fid.Fid,
- aname, &OutDirStatus, &tsync);
- RX_AFS_GLOCK();
- XSTATS_END_TIME;
- } else
- code = -1;
- } while (afs_Analyze
- (tc, code, &adp->fid, treqp, AFS_STATS_FS_RPCIDX_REMOVEFILE,
- SHARED_LOCK, NULL));
+ if (!AFS_IS_DISCONNECTED) {
+ do {
+ tc = afs_Conn(&adp->f.fid, treqp, SHARED_LOCK, &rxconn);
+ if (tc) {
+ XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
+ RX_AFS_GUNLOCK();
+ code =
+ RXAFS_RemoveFile(rxconn, (struct AFSFid *)&adp->f.fid.Fid,
+ aname, &OutDirStatus, &tsync);
+ RX_AFS_GLOCK();
+ XSTATS_END_TIME;
+ } else
+ code = -1;
+ } while (afs_Analyze
+ (tc, rxconn, code, &adp->f.fid, treqp, AFS_STATS_FS_RPCIDX_REMOVEFILE,
+ SHARED_LOCK, NULL));
+ }
osi_dnlc_remove(adp, aname, tvc);
- if (tvc)
- afs_symhint_inval(tvc); /* XXX: don't really need to be so extreme */
if (code) {
if (tdc) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
}
+
if (tvc)
afs_PutVCache(tvc);
if (code < 0) {
ObtainWriteLock(&afs_xcbhash, 497);
afs_DequeueCallback(adp);
- adp->states &= ~CStatd;
+ adp->f.states &= ~CStatd;
ReleaseWriteLock(&afs_xcbhash);
osi_dnlc_purgedp(adp);
}
}
if (tdc)
UpgradeSToWLock(&tdc->lock, 637);
- if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
+ if (AFS_IS_DISCON_RW || afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
/* we can do it locally */
code = afs_dir_Delete(tdc, aname);
if (code) {
* call FindVCache instead of GetVCache since if the file's really
* gone, we won't be able to fetch the status info anyway. */
if (tvc) {
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV) || defined(AFS_SUN5_ENV)
- afs_BozonLock(&tvc->pvnLock, tvc);
- /* Since afs_TryToSmush will do a pvn_vptrunc */
-#endif
+ if (afs_mariner)
+ afs_MarinerLog("store$Removing", tvc);
ObtainWriteLock(&tvc->lock, 141);
/* note that callback will be broken on the deleted file if there are
* still >0 links left to it, so we'll get the stat right */
- tvc->m.LinkCount--;
- tvc->states &= ~CUnique; /* For the dfs xlator */
- if (tvc->m.LinkCount == 0 && !osi_Active(tvc)) {
+ tvc->f.m.LinkCount--;
+ tvc->f.states &= ~CUnique; /* For the dfs xlator */
+ if (tvc->f.m.LinkCount == 0 && !osi_Active(tvc)) {
if (!AFS_NFSXLATORREQ(acred))
afs_TryToSmush(tvc, acred, 0);
}
ReleaseWriteLock(&tvc->lock);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV) || defined(AFS_SUN5_ENV)
- afs_BozonUnlock(&tvc->pvnLock, tvc);
-#endif
afs_PutVCache(tvc);
}
return (0);
/* Note that we don't set CDirty here, this is OK because the unlink
* RPC is called synchronously */
int
-#ifdef AFS_OSF_ENV
-afs_remove(ndp)
- struct nameidata *ndp;
+afs_remove(OSI_VC_DECL(adp), char *aname, afs_ucred_t *acred)
{
- register struct vcache *adp = VTOAFS(ndp->ni_dvp);
- char *aname = ndp->ni_dent.d_name;
- struct ucred *acred = ndp->ni_cred;
-#else /* AFS_OSF_ENV */
-afs_remove(OSI_VC_ARG(adp), aname, acred)
- OSI_VC_DECL(adp);
- char *aname;
- struct AFS_UCRED *acred;
-{
-#endif
- struct vrequest treq;
- register struct dcache *tdc;
+ struct vrequest *treq = NULL;
+ struct dcache *tdc;
struct VenusFid unlinkFid;
- register afs_int32 code;
- register struct vcache *tvc;
+ afs_int32 code;
+ struct vcache *tvc;
afs_size_t offset, len;
struct afs_fakestat_state fakestate;
OSI_VC_CONVERT(adp);
afs_Trace2(afs_iclSetp, CM_TRACE_REMOVE, ICL_TYPE_POINTER, adp,
ICL_TYPE_STRING, aname);
-#ifdef AFS_OSF_ENV
- tvc = (struct vcache *)ndp->ni_vp; /* should never be null */
-#endif
- if ((code = afs_InitReq(&treq, acred))) {
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
-#endif
+ if ((code = afs_CreateReq(&treq, acred))) {
return code;
}
afs_InitFakeStat(&fakestate);
- code = afs_EvalFakeStat(&adp, &fakestate, &treq);
- if (code) {
- afs_PutFakeStat(&fakestate);
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
-#endif
- return code;
- }
+ AFS_DISCON_LOCK();
+ code = afs_EvalFakeStat(&adp, &fakestate, treq);
+ if (code)
+ goto done;
/* Check if this is dynroot */
if (afs_IsDynroot(adp)) {
code = afs_DynrootVOPRemove(adp, acred, aname);
- afs_PutFakeStat(&fakestate);
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
-#endif
- return code;
+ goto done;
}
-#if 0
- if (adp->mvstat == 2) {
- afs_PutFakeStat(&fakestate);
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
-#endif
- return EISDIR;
+ if (afs_IsDynrootMount(adp)) {
+ code = ENOENT;
+ goto done;
}
-#endif
if (strlen(aname) > AFSNAMEMAX) {
- afs_PutFakeStat(&fakestate);
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
-#endif
- return ENAMETOOLONG;
+ code = ENAMETOOLONG;
+ goto done;
}
tagain:
- code = afs_VerifyVCache(adp, &treq);
-#ifdef AFS_OSF_ENV
- tvc = VTOAFS(ndp->ni_vp); /* should never be null */
- if (code) {
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
- afs_PutFakeStat(&fakestate);
- return afs_CheckCode(code, &treq, 22);
- }
-#else /* AFS_OSF_ENV */
+ code = afs_VerifyVCache(adp, treq);
tvc = NULL;
if (code) {
- code = afs_CheckCode(code, &treq, 23);
- afs_PutFakeStat(&fakestate);
- return code;
+ code = afs_CheckCode(code, treq, 23);
+ goto done;
}
-#endif
/** If the volume is read-only, return error without making an RPC to the
* fileserver
*/
- if (adp->states & CRO) {
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
- afs_PutVCache(tvc);
-#endif
+ if (adp->f.states & CRO) {
code = EROFS;
- afs_PutFakeStat(&fakestate);
- return code;
+ goto done;
}
- tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1); /* test for error below */
+ /* If we're running disconnected without logging, go no further... */
+ if (AFS_IS_DISCONNECTED && !AFS_IS_DISCON_RW) {
+ code = ENETDOWN;
+ goto done;
+ }
+
+ tdc = afs_GetDCache(adp, (afs_size_t) 0, treq, &offset, &len, 1); /* test for error below */
ObtainWriteLock(&adp->lock, 142);
if (tdc)
ObtainSharedLock(&tdc->lock, 638);
* Make sure that the data in the cache is current. We may have
* received a callback while we were waiting for the write lock.
*/
- if (!(adp->states & CStatd)
- || (tdc && !hsame(adp->m.DataVersion, tdc->f.versionNo))) {
+ if (!(adp->f.states & CStatd)
+ || (tdc && !hsame(adp->f.m.DataVersion, tdc->f.versionNo))) {
ReleaseWriteLock(&adp->lock);
if (tdc) {
ReleaseSharedLock(&tdc->lock);
tvc = osi_dnlc_lookup(adp, aname, WRITE_LOCK);
}
/* This should not be necessary since afs_lookup() has already
- * done the work */
+ * done the work.
+ */
if (!tvc)
if (tdc) {
code = afs_dir_Lookup(tdc, aname, &unlinkFid.Fid);
if (code == 0) {
afs_int32 cached = 0;
- unlinkFid.Cell = adp->fid.Cell;
- unlinkFid.Fid.Volume = adp->fid.Fid.Volume;
+ unlinkFid.Cell = adp->f.fid.Cell;
+ unlinkFid.Fid.Volume = adp->f.fid.Fid.Volume;
if (unlinkFid.Fid.Unique == 0) {
tvc =
- afs_LookupVCache(&unlinkFid, &treq, &cached, adp,
+ afs_LookupVCache(&unlinkFid, treq, &cached, adp,
aname);
} else {
ObtainReadLock(&afs_xvcache);
}
}
+ if (AFS_IS_DISCON_RW) {
+ if (!adp->f.shadow.vnode && !(adp->f.ddirty_flags & VDisconCreate)) {
+ /* Make shadow copy of parent dir. */
+ afs_MakeShadowDir(adp, tdc);
+ }
+
+ /* Can't hold a dcache lock whilst we're getting a vcache one */
+ if (tdc)
+ ReleaseSharedLock(&tdc->lock);
+
+ /* XXX - We're holding adp->lock still, and we've got no
+ * guarantee about whether the ordering matches the lock hierarchy */
+ ObtainWriteLock(&tvc->lock, 713);
+
+ /* If we were locally created, then we don't need to do very
+ * much beyond ensuring that we don't exist anymore */
+ if (tvc->f.ddirty_flags & VDisconCreate) {
+ afs_DisconRemoveDirty(tvc);
+ } else {
+ /* Add removed file vcache to dirty list. */
+ afs_DisconAddDirty(tvc, VDisconRemove, 1);
+ }
+ adp->f.m.LinkCount--;
+ ReleaseWriteLock(&tvc->lock);
+ if (tdc)
+ ObtainSharedLock(&tdc->lock, 714);
+ }
+
if (tvc && osi_Active(tvc)) {
/* about to delete whole file, prefetch it first */
ReleaseWriteLock(&adp->lock);
+ if (tdc)
+ ReleaseSharedLock(&tdc->lock);
ObtainWriteLock(&tvc->lock, 143);
-#if defined(AFS_OSF_ENV)
- afs_Wire(tvc, &treq);
-#else /* AFS_OSF_ENV */
- FetchWholeEnchilada(tvc, &treq);
-#endif
+ FetchWholeEnchilada(tvc, treq);
ReleaseWriteLock(&tvc->lock);
ObtainWriteLock(&adp->lock, 144);
+ /* Technically I don't think we need this back, but let's hold it
+ anyway; The "got" reference should actually be sufficient. */
+ if (tdc)
+ ObtainSharedLock(&tdc->lock, 640);
}
osi_dnlc_remove(adp, aname, tvc);
- if (tvc)
- afs_symhint_inval(tvc);
Tadp1 = adp;
+#ifndef AFS_DARWIN80_ENV
Tadpr = VREFCOUNT(adp);
+#endif
Ttvc = tvc;
Tnam = aname;
Tnam1 = 0;
+#ifndef AFS_DARWIN80_ENV
if (tvc)
Ttvcr = VREFCOUNT(tvc);
+#endif
#ifdef AFS_AIX_ENV
- if (tvc && (VREFCOUNT(tvc) > 2) && tvc->opens > 0
- && !(tvc->states & CUnlinked))
-#else
-#ifdef AFS_DARWIN14_ENV
- if (tvc && (VREFCOUNT(tvc) > 1 + DARWIN_REFBASE) && tvc->opens > 0
- && !(tvc->states & CUnlinked))
+ if (tvc && VREFCOUNT_GT(tvc, 2) && tvc->opens > 0
+ && !(tvc->f.states & CUnlinked)) {
#else
- if (tvc && (VREFCOUNT(tvc) > 1) && tvc->opens > 0
- && !(tvc->states & CUnlinked))
+ if (tvc && VREFCOUNT_GT(tvc, 1) && tvc->opens > 0
+ && !(tvc->f.states & CUnlinked)) {
#endif
-#endif
- {
char *unlname = afs_newname();
ReleaseWriteLock(&adp->lock);
if (tdc)
ReleaseSharedLock(&tdc->lock);
- code = afsrename(adp, aname, adp, unlname, acred, &treq);
+ code = afsrename(adp, aname, adp, unlname, acred, treq);
Tnam1 = unlname;
if (!code) {
- tvc->mvid = (struct VenusFid *)unlname;
+ void *oldmvid = NULL;
+ if (tvc->mvid.silly_name)
+ oldmvid = tvc->mvid.silly_name;
+ tvc->mvid.silly_name = unlname;
+ if (oldmvid)
+ osi_FreeSmallSpace(oldmvid);
crhold(acred);
if (tvc->uncred) {
crfree(tvc->uncred);
}
tvc->uncred = acred;
- tvc->states |= CUnlinked;
+ tvc->f.states |= CUnlinked;
+ /* if rename succeeded, remove should not */
+ ObtainWriteLock(&tvc->lock, 715);
+ if (tvc->f.ddirty_flags & VDisconRemove) {
+ tvc->f.ddirty_flags &= ~VDisconRemove;
+ }
+ ReleaseWriteLock(&tvc->lock);
} else {
osi_FreeSmallSpace(unlname);
}
afs_PutDCache(tdc);
afs_PutVCache(tvc);
} else {
- code = afsremove(adp, tdc, tvc, aname, acred, &treq);
+ code = afsremove(adp, tdc, tvc, aname, acred, treq);
}
-#ifdef AFS_OSF_ENV
- afs_PutVCache(adp);
-#endif /* AFS_OSF_ENV */
+ done:
afs_PutFakeStat(&fakestate);
+#if !defined(AFS_DARWIN80_ENV) && !defined(UKERNEL)
+ /* we can't track by thread, it's not exported in the KPI; only do
+ this on !macos */
+ osi_Assert(!WriteLocked(&adp->lock) || (adp->lock.pid_writer != MyPidxx));
+#endif
+ AFS_DISCON_UNLOCK();
+ afs_DestroyReq(treq);
return code;
}
* CAUTION -- may be called with avc unheld. */
int
-afs_remunlink(register struct vcache *avc, register int doit)
+afs_remunlink(struct vcache *avc, int doit)
{
- struct AFS_UCRED *cred;
+ afs_ucred_t *cred;
char *unlname;
struct vcache *adp;
- struct vrequest treq;
struct VenusFid dirFid;
- register struct dcache *tdc;
+ struct dcache *tdc;
afs_int32 code = 0;
-#ifdef AFS_DARWIN14_ENV
- int oldref;
-#endif
if (NBObtainWriteLock(&avc->lock, 423))
return 0;
+#if defined(AFS_DARWIN80_ENV)
+ if (vnode_get(AFSTOV(avc))) {
+ ReleaseWriteLock(&avc->lock);
+ return 0;
+ }
+#endif
+
+ if (avc->mvid.silly_name && (doit || (avc->f.states & CUnlinkedDel))) {
+ struct vrequest *treq = NULL;
- if (avc->mvid && (doit || (avc->states & CUnlinkedDel))) {
- if ((code = afs_InitReq(&treq, avc->uncred))) {
+ if ((code = afs_CreateReq(&treq, avc->uncred))) {
ReleaseWriteLock(&avc->lock);
} else {
/* Must bump the refCount because GetVCache may block.
* Also clear mvid so no other thread comes here if we block.
*/
- unlname = (char *)avc->mvid;
- avc->mvid = NULL;
+ unlname = avc->mvid.silly_name;
+ avc->mvid.silly_name = NULL;
cred = avc->uncred;
avc->uncred = NULL;
-#if defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN14_ENV)
- /* this is called by vrele (via VOP_INACTIVE) when the refcount
- * is 0. we can't just call VN_HOLD since vref will panic.
- * we can't just call osi_vnhold because a later AFS_RELE will call
- * vrele again, which will try to call VOP_INACTIVE again after
- * vn_locking the vnode. which would be fine except that our vrele
- * caller also locked the vnode... So instead, we just gimmick the
- * refcounts and hope nobody else can touch the file now */
- osi_Assert(VREFCOUNT(avc) == 0);
- VREFCOUNT_SET(avc, 1);
+#if defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
+ VREF(AFSTOV(avc));
+#else
+ AFS_FAST_HOLD(avc);
#endif
- VN_HOLD(AFSTOV(avc));
/* We'll only try this once. If it fails, just release the vnode.
* Clear after doing hold so that NewVCache doesn't find us yet.
*/
- avc->states &= ~(CUnlinked | CUnlinkedDel);
+ avc->f.states &= ~(CUnlinked | CUnlinkedDel);
-#ifdef AFS_DARWIN14_ENV
- if (VREFCOUNT(avc) < 4) {
- oldref = 4 - VREFCOUNT(avc);
- VREFCOUNT_SET(avc, 4);
- }
-#endif
ReleaseWriteLock(&avc->lock);
- dirFid.Cell = avc->fid.Cell;
- dirFid.Fid.Volume = avc->fid.Fid.Volume;
- dirFid.Fid.Vnode = avc->parentVnode;
- dirFid.Fid.Unique = avc->parentUnique;
- adp = afs_GetVCache(&dirFid, &treq, NULL, NULL);
+ dirFid.Cell = avc->f.fid.Cell;
+ dirFid.Fid.Volume = avc->f.fid.Fid.Volume;
+ dirFid.Fid.Vnode = avc->f.parent.vnode;
+ dirFid.Fid.Unique = avc->f.parent.unique;
+ adp = afs_GetVCache(&dirFid, treq, NULL, NULL);
if (adp) {
tdc = afs_FindDCache(adp, (afs_size_t) 0);
ObtainSharedLock(&tdc->lock, 639);
/* afsremove releases the adp & tdc locks, and does vn_rele(avc) */
- code = afsremove(adp, tdc, avc, unlname, cred, &treq);
+ code = afsremove(adp, tdc, avc, unlname, cred, treq);
afs_PutVCache(adp);
} else {
/* we failed - and won't be back to try again. */
}
osi_FreeSmallSpace(unlname);
crfree(cred);
-#ifdef AFS_DARWIN_ENV
-#ifndef AFS_DARWIN14_ENV
- osi_Assert(VREFCOUNT(avc) == 1);
- VREFCOUNT_SET(avc, 0);
-#else
- if (oldref) {
- int newref = VREFCOUNT(avc) - oldref;
- VREFCOUNT_SET(avc, newref);
- }
-#endif
-#endif
+ afs_DestroyReq(treq);
}
} else {
+#if defined(AFS_DARWIN80_ENV)
+ vnode_put(AFSTOV(avc));
+#endif
ReleaseWriteLock(&avc->lock);
}
git://git.openafs.org / openafs.git / blobdiff