*/
#include <afsconfig.h>
-#include "../afs/param.h"
+#include "afs/param.h"
-RCSID("$Header$");
+RCSID
+ ("$Header$");
-#include "../afs/sysincludes.h" /* Standard vendor system headers */
-#include "../afs/afsincludes.h" /* Afs-based standard headers */
-#include "../afs/afs_stats.h" /* statistics */
-#include "../afs/afs_cbqueue.h"
-#include "../afs/nfsclient.h"
-#include "../afs/afs_osidnlc.h"
+#include "afs/sysincludes.h" /* Standard vendor system headers */
+#include "afsincludes.h" /* Afs-based standard headers */
+#include "afs/afs_stats.h" /* statistics */
+#include "afs/afs_cbqueue.h"
+#include "afs/nfsclient.h"
+#include "afs/afs_osidnlc.h"
/* question: does afs_create need to set CDirty in the adp or the avc?
* I think we can get away without it, but I'm not sure. Note that
* afs_setattr is called in here for truncation.
*/
#ifdef AFS_OSF_ENV
-int afs_create(struct nameidata *ndp, struct vattr *attrs)
-#else /* AFS_OSF_ENV */
+int
+afs_create(struct nameidata *ndp, struct vattr *attrs)
+#else /* AFS_OSF_ENV */
#ifdef AFS_SGI64_ENV
-int afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs, int flags,
- int amode, struct vcache **avcp, struct AFS_UCRED *acred)
+int
+afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs, int flags,
+ int amode, struct vcache **avcp, struct AFS_UCRED *acred)
#else /* AFS_SGI64_ENV */
-int afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs, enum vcexcl aexcl,
- int amode, struct vcache **avcp, struct AFS_UCRED *acred)
-#endif /* AFS_SGI64_ENV */
-#endif /* AFS_OSF_ENV */
- {
+int
+afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs,
+ enum vcexcl aexcl, int amode, struct vcache **avcp,
+ struct AFS_UCRED *acred)
+#endif /* AFS_SGI64_ENV */
+#endif /* AFS_OSF_ENV */
+{
#ifdef AFS_OSF_ENV
register struct vcache *adp = VTOAFS(ndp->ni_dvp);
char *aname = ndp->ni_dent.d_name;
- enum vcexcl aexcl = NONEXCL; /* XXX - create called properly */
- int amode = 0; /* XXX - checked in higher level */
+ enum vcexcl aexcl = NONEXCL; /* XXX - create called properly */
+ int amode = 0; /* XXX - checked in higher level */
struct vcache **avcp = (struct vcache **)&(ndp->ni_vp);
struct ucred *acred = ndp->ni_cred;
#endif
afs_int32 now;
struct dcache *tdc;
afs_size_t offset, len;
- struct server *hostp=0;
+ struct server *hostp = 0;
struct vcache *tvc;
- struct volume* volp = 0;
+ struct volume *volp = 0;
struct afs_fakestat_state fakestate;
- XSTATS_DECLS
- OSI_VC_CONVERT(adp)
+ XSTATS_DECLS;
+ OSI_VC_CONVERT(adp);
AFS_STATCNT(afs_create);
- if ((code = afs_InitReq(&treq, acred)))
+ if ((code = afs_InitReq(&treq, acred)))
goto done2;
afs_Trace3(afs_iclSetp, CM_TRACE_CREATE, ICL_TYPE_POINTER, adp,
#endif
case VFIFO:
/* We don't support special devices or FIFOs */
- code = EINVAL;
+ code = EINVAL;
goto done;
default:
;
}
code = afs_EvalFakeStat(&adp, &fakestate, &treq);
- if (code) goto done;
-tagain:
+ if (code)
+ goto done;
+ tagain:
code = afs_VerifyVCache(adp, &treq);
- if (code) goto done;
+ if (code)
+ goto done;
/** If the volume is read-only, return error without making an RPC to the
* fileserver
*/
- if ( adp->states & CRO ) {
- code = EROFS;
+ if (adp->states & CRO) {
+ code = EROFS;
goto done;
}
tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1);
- ObtainWriteLock(&adp->lock,135);
- if (tdc) ObtainSharedLock(&tdc->lock,630);
+ ObtainWriteLock(&adp->lock, 135);
+ if (tdc)
+ ObtainSharedLock(&tdc->lock, 630);
/*
* Make sure that the data in the cache is current. We may have
if (tdc) {
/* see if file already exists. If it does, we only set
* the size attributes (to handle O_TRUNC) */
- code = afs_dir_Lookup(&tdc->f.inode, aname, &newFid.Fid); /* use dnlc first xxx */
+ code = afs_dir_Lookup(tdc, aname, &newFid.Fid); /* use dnlc first xxx */
if (code == 0) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
#else
if (aexcl != NONEXCL) {
#endif
- code = EEXIST; /* file exists in excl mode open */
+ code = EEXIST; /* file exists in excl mode open */
goto done;
}
/* found the file, so use it */
newFid.Fid.Volume = adp->fid.Fid.Volume;
tvc = NULL;
if (newFid.Fid.Unique == 0) {
- tvc = afs_LookupVCache(&newFid, &treq, NULL, adp, aname);
+ tvc = afs_LookupVCache(&newFid, &treq, NULL, adp, aname);
}
- if (!tvc) /* lookup failed or wasn't called */
- tvc = afs_GetVCache(&newFid, &treq, NULL, NULL);
+ if (!tvc) /* lookup failed or wasn't called */
+ tvc = afs_GetVCache(&newFid, &treq, NULL, NULL);
if (tvc) {
/* if the thing exists, we need the right access to open it.
* We used to check always for READ access before; the
* problem is that we will fail if the existing file
* has mode -w-w-w, which is wrong.
- */
- if ((amode & VREAD) &&
- !afs_AccessOK(tvc, PRSFS_READ, &treq, CHECK_MODE_BITS)) {
- afs_PutVCache(tvc);
- code = EACCES;
- goto done;
+ */
+ if ((amode & VREAD)
+ && !afs_AccessOK(tvc, PRSFS_READ, &treq, CHECK_MODE_BITS)) {
+ afs_PutVCache(tvc);
+ code = EACCES;
+ goto done;
}
-
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
- if ((amode & VWRITE) || (attrs->va_mask & AT_SIZE))
+ if ((amode & VWRITE) || (attrs->va_mask & AT_SIZE))
#else
- if ((amode & VWRITE) || len != 0xffffffff)
+ if ((amode & VWRITE) || len != 0xffffffff)
#endif
- {
+ {
/* needed for write access check */
tvc->parentVnode = adp->fid.Fid.Vnode;
tvc->parentUnique = adp->fid.Fid.Unique;
/* need write mode for these guys */
- if (!afs_AccessOK(tvc, PRSFS_WRITE, &treq, CHECK_MODE_BITS)) {
+ if (!afs_AccessOK
+ (tvc, PRSFS_WRITE, &treq, CHECK_MODE_BITS)) {
afs_PutVCache(tvc);
code = EACCES;
goto done;
}
}
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
- if (attrs->va_mask & AT_SIZE)
+ if (attrs->va_mask & AT_SIZE)
#else
- if (len != 0xffffffff)
+ if (len != 0xffffffff)
#endif
- {
+ {
if (vType(tvc) != VREG) {
afs_PutVCache(tvc);
code = EISDIR;
VATTR_NULL(attrs);
#endif
attrs->va_size = len;
- ObtainWriteLock(&tvc->lock,136);
+ ObtainWriteLock(&tvc->lock, 136);
tvc->states |= CCreating;
ReleaseWriteLock(&tvc->lock);
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
#if defined(AFS_SGI64_ENV)
- code = afs_setattr(VNODE_TO_FIRST_BHV((vnode_t*)tvc),
- attrs, 0, acred);
+ code =
+ afs_setattr(VNODE_TO_FIRST_BHV((vnode_t *) tvc),
+ attrs, 0, acred);
#else
code = afs_setattr(tvc, attrs, 0, acred);
#endif /* AFS_SGI64_ENV */
#else /* SUN5 || SGI */
code = afs_setattr(tvc, attrs, acred);
#endif /* SUN5 || SGI */
- ObtainWriteLock(&tvc->lock,137);
+ ObtainWriteLock(&tvc->lock, 137);
tvc->states &= ~CCreating;
ReleaseWriteLock(&tvc->lock);
if (code) {
}
}
*avcp = tvc;
- }
- else code = ENOENT; /* shouldn't get here */
+ } else
+ code = ENOENT; /* shouldn't get here */
/* make sure vrefCount bumped only if code == 0 */
goto done;
}
/* if we create the file, we don't do any access checks, since
* that's how O_CREAT is supposed to work */
if (adp->states & CForeign) {
- origCBs = afs_allCBs;
- origZaps = afs_allZaps;
+ origCBs = afs_allCBs;
+ origZaps = afs_allZaps;
} else {
- origCBs = afs_evenCBs; /* if changes, we don't really have a callback */
- origZaps = afs_evenZaps; /* number of even numbered vnodes discarded */
+ origCBs = afs_evenCBs; /* if changes, we don't really have a callback */
+ origZaps = afs_evenZaps; /* number of even numbered vnodes discarded */
}
InStatus.Mask = AFS_SETMODTIME | AFS_SETMODE | AFS_SETGROUP;
InStatus.ClientModTime = osi_Time();
- InStatus.Group = (afs_int32)acred->cr_gid;
+ InStatus.Group = (afs_int32) acred->cr_gid;
if (AFS_NFSXLATORREQ(acred)) {
/*
* XXX The following is mainly used to fix a bug in the HP-UX
* nfs client where they create files with mode of 0 without
* doing any setattr later on to fix it. * XXX
- */
+ */
#if defined(AFS_AIX_ENV)
if (attrs->va_mode != -1) {
#else
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
- if (attrs->va_mask & AT_MODE) {
+ if (attrs->va_mask & AT_MODE) {
#else
if (attrs->va_mode != ((unsigned short)-1)) {
#endif
#endif
if (!attrs->va_mode)
- attrs->va_mode = 0x1b6; /* XXX default mode: rw-rw-rw XXX */
+ attrs->va_mode = 0x1b6; /* XXX default mode: rw-rw-rw XXX */
}
}
- InStatus.UnixModeBits = attrs->va_mode & 0xffff; /* only care about protection bits */
+ InStatus.UnixModeBits = attrs->va_mode & 0xffff; /* only care about protection bits */
do {
tc = afs_Conn(&adp->fid, &treq, SHARED_LOCK);
if (tc) {
- hostp = tc->srvr->server; /* remember for callback processing */
+ hostp = tc->srvr->server; /* remember for callback processing */
now = osi_Time();
XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_CREATEFILE);
RX_AFS_GUNLOCK();
- code = RXAFS_CreateFile(tc->id, (struct AFSFid *) &adp->fid.Fid,
- aname, &InStatus, (struct AFSFid *)
- &newFid.Fid, &OutFidStatus,
- &OutDirStatus, &CallBack, &tsync);
+ code =
+ RXAFS_CreateFile(tc->id, (struct AFSFid *)&adp->fid.Fid,
+ aname, &InStatus, (struct AFSFid *)
+ &newFid.Fid, &OutFidStatus, &OutDirStatus,
+ &CallBack, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
CallBack.ExpirationTime += now;
- }
- else code = -1;
- } while
- (afs_Analyze(tc, code, &adp->fid, &treq,
- AFS_STATS_FS_RPCIDX_CREATEFILE, SHARED_LOCK, NULL));
+ } else
+ code = -1;
+ } while (afs_Analyze
+ (tc, code, &adp->fid, &treq, AFS_STATS_FS_RPCIDX_CREATEFILE,
+ SHARED_LOCK, NULL));
#if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV)
if (code == EEXIST && aexcl == NONEXCL) {
/* This lookup was handled in the common vn_open code in the
- vnode layer */
+ * vnode layer */
if (tdc) {
ReleaseSharedLock(&tdc->lock);
afs_PutDCache(tdc);
ReleaseWriteLock(&adp->lock);
goto done;
}
-#else /* AFS_OSF_ENV */
+#else /* AFS_OSF_ENV */
#ifdef AFS_SGI64_ENV
if (code == EEXIST && !(flags & VEXCL)) {
#else /* AFS_SGI64_ENV */
ReleaseWriteLock(&adp->lock);
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
#if defined(AFS_SGI64_ENV)
- code = afs_lookup(VNODE_TO_FIRST_BHV((vnode_t*)adp), aname, avcp,
- NULL, 0,
- NULL, acred);
+ code =
+ afs_lookup(VNODE_TO_FIRST_BHV((vnode_t *) adp), aname, avcp, NULL,
+ 0, NULL, acred);
#else
- code = afs_lookup(adp, aname, avcp, NULL, 0,
- NULL, acred);
+ code = afs_lookup(adp, aname, avcp, NULL, 0, NULL, acred);
#endif /* AFS_SGI64_ENV */
#else /* SUN5 || SGI */
code = afs_lookup(adp, aname, avcp, acred);
#endif /* AFS_OSF_ENV */
if (code) {
if (code < 0) {
- ObtainWriteLock(&afs_xcbhash, 488);
- afs_DequeueCallback(adp);
- adp->states &= ~CStatd;
- ReleaseWriteLock(&afs_xcbhash);
- osi_dnlc_purgedp(adp);
+ ObtainWriteLock(&afs_xcbhash, 488);
+ afs_DequeueCallback(adp);
+ adp->states &= ~CStatd;
+ ReleaseWriteLock(&afs_xcbhash);
+ osi_dnlc_purgedp(adp);
}
ReleaseWriteLock(&adp->lock);
if (tdc) {
goto done;
}
/* otherwise, we should see if we can make the change to the dir locally */
- if (tdc) UpgradeSToWLock(&tdc->lock, 631);
+ if (tdc)
+ UpgradeSToWLock(&tdc->lock, 631);
if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
/* we can do it locally */
- code = afs_dir_Create(&tdc->f.inode, aname, &newFid.Fid);
+ code = afs_dir_Create(tdc, aname, &newFid.Fid);
if (code) {
- ZapDCE(tdc);
- DZap(&tdc->f.inode);
+ ZapDCE(tdc);
+ DZap(tdc);
}
}
if (tdc) {
volp = afs_FindVolume(&newFid, READ_LOCK);
/* New tricky optimistic callback handling algorithm for file creation works
- as follows. We create the file essentially with no locks set at all. File
- server may thus handle operations from others cache managers as well as from
- this very own cache manager that reference the file in question before
- we managed to create the cache entry. However, if anyone else changes
- any of the status information for a file, we'll see afs_evenCBs increase
- (files always have even fids). If someone on this workstation manages
- to do something to the file, they'll end up having to create a cache
- entry for the new file. Either we'll find it once we've got the afs_xvcache
- lock set, or it was also *deleted* the vnode before we got there, in which case
- we will find evenZaps has changed, too. Thus, we only assume we have the right
- status information if no callbacks or vnode removals have occurred to even
- numbered files from the time the call started until the time that we got the xvcache
- lock set. Of course, this also assumes that any call that modifies a file first
- gets a write lock on the file's vnode, but if that weren't true, the whole cache manager
- would fail, since no call would be able to update the local vnode status after modifying
- a file on a file server. */
- ObtainWriteLock(&afs_xvcache,138);
- if (adp->states & CForeign)
- finalZaps = afs_allZaps; /* do this before calling newvcache */
+ * as follows. We create the file essentially with no locks set at all. File
+ * server may thus handle operations from others cache managers as well as from
+ * this very own cache manager that reference the file in question before
+ * we managed to create the cache entry. However, if anyone else changes
+ * any of the status information for a file, we'll see afs_evenCBs increase
+ * (files always have even fids). If someone on this workstation manages
+ * to do something to the file, they'll end up having to create a cache
+ * entry for the new file. Either we'll find it once we've got the afs_xvcache
+ * lock set, or it was also *deleted* the vnode before we got there, in which case
+ * we will find evenZaps has changed, too. Thus, we only assume we have the right
+ * status information if no callbacks or vnode removals have occurred to even
+ * numbered files from the time the call started until the time that we got the xvcache
+ * lock set. Of course, this also assumes that any call that modifies a file first
+ * gets a write lock on the file's vnode, but if that weren't true, the whole cache manager
+ * would fail, since no call would be able to update the local vnode status after modifying
+ * a file on a file server. */
+ ObtainWriteLock(&afs_xvcache, 138);
+ if (adp->states & CForeign)
+ finalZaps = afs_allZaps; /* do this before calling newvcache */
else
- finalZaps = afs_evenZaps; /* do this before calling newvcache */
+ finalZaps = afs_evenZaps; /* do this before calling newvcache */
/* don't need to call RemoveVCB, since only path leaving a callback is the
- one where we pass through afs_NewVCache. Can't have queued a VCB unless
- we created and freed an entry between file creation time and here, and the
- freeing of the vnode will change evenZaps. Don't need to update the VLRU
- queue, since the find will only succeed in the event of a create race, and
- then the vcache will be at the front of the VLRU queue anyway... */
+ * one where we pass through afs_NewVCache. Can't have queued a VCB unless
+ * we created and freed an entry between file creation time and here, and the
+ * freeing of the vnode will change evenZaps. Don't need to update the VLRU
+ * queue, since the find will only succeed in the event of a create race, and
+ * then the vcache will be at the front of the VLRU queue anyway... */
if (!(tvc = afs_FindVCache(&newFid, 0, DO_STATS))) {
tvc = afs_NewVCache(&newFid, hostp);
if (tvc) {
int finalCBs;
- ObtainWriteLock(&tvc->lock,139);
+ ObtainWriteLock(&tvc->lock, 139);
ObtainWriteLock(&afs_xcbhash, 489);
finalCBs = afs_evenCBs;
finalCBs = afs_allCBs;
}
if (origCBs == finalCBs && origZaps == finalZaps) {
- tvc->states |= CStatd; /* we've fake entire thing, so don't stat */
+ tvc->states |= CStatd; /* we've fake entire thing, so don't stat */
tvc->states &= ~CBulkFetching;
tvc->cbExpires = CallBack.ExpirationTime;
afs_QueueCallback(tvc, CBHash(CallBack.ExpirationTime), volp);
- }
- else {
- afs_DequeueCallback(tvc);
- tvc->states &= ~(CStatd | CUnique);
- tvc->callback = 0;
- if (tvc->fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
- osi_dnlc_purgedp(tvc);
+ } else {
+ afs_DequeueCallback(tvc);
+ tvc->states &= ~(CStatd | CUnique);
+ tvc->callback = 0;
+ if (tvc->fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
+ osi_dnlc_purgedp(tvc);
}
ReleaseWriteLock(&afs_xcbhash);
afs_ProcessFS(tvc, &OutFidStatus, &treq);
ReleaseWriteLock(&tvc->lock);
*avcp = tvc;
code = 0;
- }
- else code = ENOENT;
- }
- else {
- /* otherwise cache entry already exists, someone else must
- * have created it. Comments used to say: "don't need write
- * lock to *clear* these flags" but we should do it anyway.
- * Code used to clear stat bit and callback, but I don't see
- * the point -- we didn't have a create race, somebody else just
- * snuck into NewVCache before we got here, probably a racing
- * lookup.
- */
+ } else
+ code = ENOENT;
+ } else {
+ /* otherwise cache entry already exists, someone else must
+ * have created it. Comments used to say: "don't need write
+ * lock to *clear* these flags" but we should do it anyway.
+ * Code used to clear stat bit and callback, but I don't see
+ * the point -- we didn't have a create race, somebody else just
+ * snuck into NewVCache before we got here, probably a racing
+ * lookup.
+ */
*avcp = tvc;
code = 0;
}
ReleaseWriteLock(&afs_xvcache);
-done:
- if ( volp )
+ done:
+ if (volp)
afs_PutVolume(volp, READ_LOCK);
if (code == 0) {
/* return the new status in vattr */
afs_CopyOutAttrs(*avcp, attrs);
}
-
#ifdef AFS_OSF_ENV
if (!code && !strcmp(aname, "core"))
tvc->states |= CCore1;
afs_PutFakeStat(&fakestate);
code = afs_CheckCode(code, &treq, 20);
-done2:
+ done2:
#ifdef AFS_OSF_ENV
afs_PutVCache(adp);
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_OSF_ENV */
return code;
}
* This routine must be called with the stat cache entry write-locked,
* and dcache entry write-locked.
*/
-int afs_LocalHero(register struct vcache *avc, register struct dcache *adc,
- register AFSFetchStatus *astat, register int aincr)
+int
+afs_LocalHero(register struct vcache *avc, register struct dcache *adc,
+ register AFSFetchStatus * astat, register int aincr)
{
register afs_int32 ok;
afs_hyper_t avers;
hset64(avers, astat->dataVersionHigh, astat->DataVersion);
/* this *is* the version number, no matter what */
if (adc) {
- ok = (hsame(avc->m.DataVersion, adc->f.versionNo) && avc->callback
+ ok = (hsame(avc->m.DataVersion, adc->f.versionNo) && avc->callback
&& (avc->states & CStatd) && avc->cbExpires >= osi_Time());
- }
- else {
+ } else {
ok = 0;
}
#if defined(AFS_SGI_ENV)
- osi_Assert(avc->v.v_type == VDIR);
+ osi_Assert(avc->v.v_type == VDIR);
#endif
/* The bulk status code used the length as a sequence number. */
/* Don't update the vcache entry unless the stats are current. */
adc->dflags |= DFEntryMod;
adc->f.versionNo = avers;
return 1;
- }
- else {
+ } else {
if (adc) {
ZapDCE(adc);
- DZap(&adc->f.inode);
+ DZap(adc);
}
if (avc->states & CStatd) {
osi_dnlc_purgedp(avc);
git://git.openafs.org / openafs.git / blobdiff