/*
* Implements:
- * afs_UFSWrite
- * afs_MemWrite
+ * afs_write
+ * afs_UFSWriteUIO
* afs_StoreOnLastReference
* afs_close
* afs_fsync
}
int
-afs_MemWrite(struct vcache *avc, struct uio *auio, int aio,
- afs_ucred_t *acred, int noLock)
+afs_UFSWriteUIO(struct vcache *avc, afs_dcache_id_t *inode, struct uio *tuiop)
{
- afs_size_t totalLength;
- afs_size_t transferLength;
- afs_size_t filePos;
- afs_size_t offset, len;
- afs_int32 tlen, trimlen;
- afs_int32 startDate;
- afs_int32 max;
- struct dcache *tdc;
-#ifdef _HIGHC_
- volatile
-#endif
- afs_int32 error;
-#if defined(AFS_FBSD_ENV) || defined(AFS_DFBSD_ENV)
- struct vnode *vp = AFSTOV(avc);
-#endif
-#ifdef AFS_DARWIN80_ENV
- uio_t tuiop = NULL;
-#else
- struct uio tuio;
- struct uio *tuiop = &tuio;
- struct iovec *tvec; /* again, should have define */
-#endif
- afs_int32 code;
- struct vrequest treq;
-
- AFS_STATCNT(afs_MemWrite);
- if (avc->vc_error)
- return avc->vc_error;
+ struct osi_file *tfile;
+ int code;
- startDate = osi_Time();
- if ((code = afs_InitReq(&treq, acred)))
- return code;
- /* otherwise we read */
- totalLength = AFS_UIO_RESID(auio);
- filePos = AFS_UIO_OFFSET(auio);
- error = 0;
- transferLength = 0;
- afs_Trace4(afs_iclSetp, CM_TRACE_WRITE, ICL_TYPE_POINTER, avc,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(filePos), ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(totalLength), ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(avc->f.m.Length));
- if (!noLock) {
- afs_MaybeWakeupTruncateDaemon();
- ObtainWriteLock(&avc->lock, 126);
- }
-#if defined(AFS_SGI_ENV)
+ tfile = (struct osi_file *)osi_UFSOpen(inode);
+#if defined(AFS_AIX41_ENV)
+ AFS_GUNLOCK();
+ code = VNOP_RDWR(tfile->vnode, UIO_WRITE, FWRITE, tuiop, NULL, NULL,
+ NULL, afs_osi_credp);
+ AFS_GLOCK();
+#elif defined(AFS_AIX32_ENV)
+ code = VNOP_RDWR(tfile->vnode, UIO_WRITE, FWRITE, tuiop, NULL, NULL);
+#elif defined(AFS_AIX_ENV)
+ code = VNOP_RDWR(tfile->vnode, UIO_WRITE, FWRITE, (off_t) &offset,
+ tuiop, NULL, NULL, -1);
+#elif defined(AFS_SUN5_ENV)
+ AFS_GUNLOCK();
+# ifdef AFS_SUN510_ENV
{
- off_t diff;
- /*
- * afs_xwrite handles setting m.Length
- * and handles APPEND mode.
- * Since we are called via strategy, we need to trim the write to
- * the actual size of the file
- */
- osi_Assert(filePos <= avc->f.m.Length);
- diff = avc->f.m.Length - filePos;
- AFS_UIO_SETRESID(auio, MIN(totalLength, diff));
- totalLength = AFS_UIO_RESID(auio);
- }
-#else
- if (aio & IO_APPEND) {
- /* append mode, start it at the right spot */
-#if defined(AFS_SUN56_ENV)
- auio->uio_loffset = 0;
-#endif
- filePos = avc->f.m.Length;
- AFS_UIO_SETOFFSET(auio, filePos);
- }
-#endif
- /*
- * Note that we use startDate rather than calling osi_Time() here.
- * This is to avoid counting lock-waiting time in file date (for ranlib).
- */
- avc->f.m.Date = startDate;
+ caller_context_t ct;
-#if defined(AFS_HPUX_ENV)
-#if defined(AFS_HPUX101_ENV)
- if ((totalLength + filePos) >> 9 >
- (p_rlimit(u.u_procp))[RLIMIT_FSIZE].rlim_cur) {
-#else
- if ((totalLength + filePos) >> 9 > u.u_rlimit[RLIMIT_FSIZE].rlim_cur) {
-#endif
- if (!noLock)
- ReleaseWriteLock(&avc->lock);
- return (EFBIG);
+ VOP_RWLOCK(tfile->vnode, 1, &ct);
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp, &ct);
+ VOP_RWUNLOCK(tfile->vnode, 1, &ct);
}
-#endif
-#if defined(AFS_VM_RDWR_ENV) && !defined(AFS_FAKEOPEN_ENV)
- /*
- * If write is implemented via VM, afs_FakeOpen() is called from the
- * high-level write op.
- */
- if (avc->execsOrWriters <= 0) {
- afs_warn("WARNING: afs_ufswr vp=%lx, exOrW=%d\n", (unsigned long)avc,
- avc->execsOrWriters);
+# else
+ VOP_RWLOCK(tfile->vnode, 1);
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp);
+ VOP_RWUNLOCK(tfile->vnode, 1);
+# endif
+ AFS_GLOCK();
+ if (code == ENOSPC)
+ afs_warnuser
+ ("\n\n\n*** Cache partition is full - decrease cachesize!!! ***\n\n\n");
+#elif defined(AFS_SGI_ENV)
+ AFS_GUNLOCK();
+ avc->f.states |= CWritingUFS;
+ AFS_VOP_RWLOCK(tfile->vnode, VRWLOCK_WRITE);
+ AFS_VOP_WRITE(tfile->vnode, tuiop, IO_ISLOCKED, afs_osi_credp, code);
+ AFS_VOP_RWUNLOCK(tfile->vnode, VRWLOCK_WRITE);
+ avc->f.states &= ~CWritingUFS;
+ AFS_GLOCK();
+#elif defined(AFS_HPUX100_ENV)
+ {
+ AFS_GUNLOCK();
+ code = VOP_RDWR(tfile->vnode, tuiop, UIO_WRITE, 0, afs_osi_credp);
+ AFS_GLOCK();
}
+#elif defined(AFS_LINUX20_ENV)
+ AFS_GUNLOCK();
+ code = osi_rdwr(tfile, tuiop, UIO_WRITE);
+ AFS_GLOCK();
+#elif defined(AFS_DARWIN80_ENV)
+ AFS_GUNLOCK();
+ code = VNOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_ctxtp);
+ AFS_GLOCK();
+#elif defined(AFS_DARWIN_ENV)
+ AFS_GUNLOCK();
+ VOP_LOCK(tfile->vnode, LK_EXCLUSIVE, current_proc());
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp);
+ VOP_UNLOCK(tfile->vnode, 0, current_proc());
+ AFS_GLOCK();
+#elif defined(AFS_FBSD80_ENV)
+ AFS_GUNLOCK();
+ VOP_LOCK(tfile->vnode, LK_EXCLUSIVE);
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp);
+ VOP_UNLOCK(tfile->vnode, 0);
+ AFS_GLOCK();
+#elif defined(AFS_FBSD_ENV)
+ AFS_GUNLOCK();
+ VOP_LOCK(tfile->vnode, LK_EXCLUSIVE, curthread);
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp);
+ VOP_UNLOCK(tfile->vnode, 0, curthread);
+ AFS_GLOCK();
+#elif defined(AFS_NBSD_ENV)
+ AFS_GUNLOCK();
+ VOP_LOCK(tfile->vnode, LK_EXCLUSIVE);
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp);
+ VOP_UNLOCK(tfile->vnode, 0);
+ AFS_GLOCK();
+#elif defined(AFS_XBSD_ENV)
+ AFS_GUNLOCK();
+ VOP_LOCK(tfile->vnode, LK_EXCLUSIVE, curproc);
+ code = VOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_credp);
+ VOP_UNLOCK(tfile->vnode, 0, curproc);
+ AFS_GLOCK();
#else
- afs_FakeOpen(avc);
-#endif
- avc->f.states |= CDirty;
-#ifndef AFS_DARWIN80_ENV
- tvec = (struct iovec *)osi_AllocSmallSpace(sizeof(struct iovec));
-#endif
- while (totalLength > 0) {
- tdc = afs_ObtainDCacheForWriting(avc, filePos, totalLength, &treq,
- noLock);
- if (!tdc) {
- error = EIO;
- break;
- }
-
- len = totalLength; /* write this amount by default */
- offset = filePos - AFS_CHUNKTOBASE(tdc->f.chunk);
- max = AFS_CHUNKTOSIZE(tdc->f.chunk); /* max size of this chunk */
- if (max <= len + offset) { /*if we'd go past the end of this chunk */
- /* it won't all fit in this chunk, so write as much
- * as will fit */
- len = max - offset;
- }
-
-#ifdef AFS_DARWIN80_ENV
- if (tuiop)
- uio_free(tuiop);
- trimlen = len;
- tuiop = afsio_darwin_partialcopy(auio, trimlen);
-#else
- /* mung uio structure to be right for this transfer */
- afsio_copy(auio, &tuio, tvec);
- trimlen = len;
- afsio_trim(&tuio, trimlen);
+# ifdef AFS_HPUX_ENV
+ tuio.uio_fpflags &= ~FSYNCIO; /* don't do sync io */
+# endif
+ code = VOP_RDWR(tfile->vnode, tuiop, UIO_WRITE, 0, afs_osi_credp);
#endif
- AFS_UIO_SETOFFSET(tuiop, offset);
+ osi_UFSClose(tfile);
- code = afs_MemWriteUIO(&tdc->f.inode, tuiop);
- if (code) {
- void *mep; /* XXX in prototype world is struct memCacheEntry * */
- error = code;
- ZapDCE(tdc); /* bad data */
- mep = afs_MemCacheOpen(&tdc->f.inode);
- afs_MemCacheTruncate(mep, 0);
- afs_MemCacheClose(mep);
- afs_stats_cmperf.cacheCurrDirtyChunks--;
- afs_indexFlags[tdc->index] &= ~IFDataMod; /* so it does disappear */
- ReleaseWriteLock(&tdc->lock);
- afs_PutDCache(tdc);
- break;
- }
- /* otherwise we've written some, fixup length, etc and continue with next seg */
- len = len - AFS_UIO_RESID(tuiop); /* compute amount really transferred */
- tlen = len;
- afsio_skip(auio, tlen); /* advance auio over data written */
- /* compute new file size */
- if (offset + len > tdc->f.chunkBytes) {
- afs_int32 tlength = offset + len;
- afs_AdjustSize(tdc, tlength);
- if (tdc->validPos < filePos + len)
- tdc->validPos = filePos + len;
- }
- totalLength -= len;
- transferLength += len;
- filePos += len;
-#if defined(AFS_SGI_ENV)
- /* afs_xwrite handles setting m.Length */
- osi_Assert(filePos <= avc->f.m.Length);
-#else
- if (filePos > avc->f.m.Length) {
- if (AFS_IS_DISCON_RW)
- afs_PopulateDCache(avc, filePos, &treq);
- afs_Trace4(afs_iclSetp, CM_TRACE_SETLENGTH, ICL_TYPE_STRING,
- __FILE__, ICL_TYPE_LONG, __LINE__, ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(filePos));
- avc->f.m.Length = filePos;
-#if defined(AFS_FBSD_ENV) || defined(AFS_DFBSD_ENV)
- vnode_pager_setsize(vp, filePos);
-#endif
- }
-#endif
- ReleaseWriteLock(&tdc->lock);
- afs_PutDCache(tdc);
-#if !defined(AFS_VM_RDWR_ENV)
- /*
- * If write is implemented via VM, afs_DoPartialWrite() is called from
- * the high-level write op.
- */
- if (!noLock) {
- code = afs_DoPartialWrite(avc, &treq);
- if (code) {
- error = code;
- break;
- }
- }
-#endif
- }
-#if !defined(AFS_VM_RDWR_ENV) || defined(AFS_FAKEOPEN_ENV)
- afs_FakeClose(avc, acred);
-#endif
- if (error && !avc->vc_error)
- avc->vc_error = error;
- if (!noLock)
- ReleaseWriteLock(&avc->lock);
-#ifdef AFS_DARWIN80_ENV
- uio_free(tuiop);
-#else
- osi_FreeSmallSpace(tvec);
-#endif
- error = afs_CheckCode(error, &treq, 6);
- return error;
+ return code;
}
-
/* called on writes */
int
-afs_UFSWrite(struct vcache *avc, struct uio *auio, int aio,
+afs_write(struct vcache *avc, struct uio *auio, int aio,
afs_ucred_t *acred, int noLock)
{
afs_size_t totalLength;
struct uio *tuiop = &tuio;
struct iovec *tvec; /* again, should have define */
#endif
- struct osi_file *tfile;
afs_int32 code;
struct vrequest treq;
- AFS_STATCNT(afs_UFSWrite);
+ AFS_STATCNT(afs_write);
+
if (avc->vc_error)
return avc->vc_error;
#endif
avc->f.states |= CDirty;
#ifndef AFS_DARWIN80_ENV
- tvec = (struct iovec *)osi_AllocSmallSpace(sizeof(struct iovec));
+ tvec = osi_AllocSmallSpace(sizeof(struct iovec));
#endif
while (totalLength > 0) {
tdc = afs_ObtainDCacheForWriting(avc, filePos, totalLength, &treq,
error = EIO;
break;
}
- tfile = (struct osi_file *)osi_UFSOpen(&tdc->f.inode);
len = totalLength; /* write this amount by default */
offset = filePos - AFS_CHUNKTOBASE(tdc->f.chunk);
max = AFS_CHUNKTOSIZE(tdc->f.chunk); /* max size of this chunk */
#endif
AFS_UIO_SETOFFSET(tuiop, offset);
-#if defined(AFS_AIX41_ENV)
- AFS_GUNLOCK();
- code =
- VNOP_RDWR(tfile->vnode, UIO_WRITE, FWRITE, &tuio, NULL, NULL,
- NULL, afs_osi_credp);
- AFS_GLOCK();
-#elif defined(AFS_AIX32_ENV)
- code = VNOP_RDWR(tfile->vnode, UIO_WRITE, FWRITE, &tuio, NULL, NULL);
-#elif defined(AFS_AIX_ENV)
- code =
- VNOP_RDWR(tfile->vnode, UIO_WRITE, FWRITE, (off_t) & offset,
- &tuio, NULL, NULL, -1);
-#elif defined(AFS_SUN5_ENV)
- AFS_GUNLOCK();
-#ifdef AFS_SUN510_ENV
- {
- caller_context_t ct;
+ code = (*(afs_cacheType->vwriteUIO))(avc, &tdc->f.inode, tuiop);
- VOP_RWLOCK(tfile->vnode, 1, &ct);
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp, &ct);
- VOP_RWUNLOCK(tfile->vnode, 1, &ct);
- }
-#else
- VOP_RWLOCK(tfile->vnode, 1);
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp);
- VOP_RWUNLOCK(tfile->vnode, 1);
-#endif
- AFS_GLOCK();
- if (code == ENOSPC)
- afs_warnuser
- ("\n\n\n*** Cache partition is full - decrease cachesize!!! ***\n\n\n");
-#elif defined(AFS_SGI_ENV)
- AFS_GUNLOCK();
- avc->f.states |= CWritingUFS;
- AFS_VOP_RWLOCK(tfile->vnode, VRWLOCK_WRITE);
- AFS_VOP_WRITE(tfile->vnode, &tuio, IO_ISLOCKED, afs_osi_credp, code);
- AFS_VOP_RWUNLOCK(tfile->vnode, VRWLOCK_WRITE);
- avc->f.states &= ~CWritingUFS;
- AFS_GLOCK();
-#elif defined(AFS_HPUX100_ENV)
- {
- AFS_GUNLOCK();
- code = VOP_RDWR(tfile->vnode, &tuio, UIO_WRITE, 0, afs_osi_credp);
- AFS_GLOCK();
- }
-#elif defined(AFS_LINUX20_ENV)
- AFS_GUNLOCK();
- code = osi_rdwr(tfile, &tuio, UIO_WRITE);
- AFS_GLOCK();
-#elif defined(AFS_DARWIN80_ENV)
- AFS_GUNLOCK();
- code = VNOP_WRITE(tfile->vnode, tuiop, 0, afs_osi_ctxtp);
- AFS_GLOCK();
-#elif defined(AFS_DARWIN_ENV)
- AFS_GUNLOCK();
- VOP_LOCK(tfile->vnode, LK_EXCLUSIVE, current_proc());
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp);
- VOP_UNLOCK(tfile->vnode, 0, current_proc());
- AFS_GLOCK();
-#elif defined(AFS_FBSD80_ENV)
- AFS_GUNLOCK();
- VOP_LOCK(tfile->vnode, LK_EXCLUSIVE);
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp);
- VOP_UNLOCK(tfile->vnode, 0);
- AFS_GLOCK();
-#elif defined(AFS_FBSD_ENV)
- AFS_GUNLOCK();
- VOP_LOCK(tfile->vnode, LK_EXCLUSIVE, curthread);
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp);
- VOP_UNLOCK(tfile->vnode, 0, curthread);
- AFS_GLOCK();
-#elif defined(AFS_NBSD_ENV)
- AFS_GUNLOCK();
- VOP_LOCK(tfile->vnode, LK_EXCLUSIVE);
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp);
- VOP_UNLOCK(tfile->vnode, 0);
- AFS_GLOCK();
-#elif defined(AFS_XBSD_ENV)
- AFS_GUNLOCK();
- VOP_LOCK(tfile->vnode, LK_EXCLUSIVE, curproc);
- code = VOP_WRITE(tfile->vnode, &tuio, 0, afs_osi_credp);
- VOP_UNLOCK(tfile->vnode, 0, curproc);
- AFS_GLOCK();
-#else
-#ifdef AFS_HPUX_ENV
- tuio.uio_fpflags &= ~FSYNCIO; /* don't do sync io */
-#endif
- code = VOP_RDWR(tfile->vnode, &tuio, UIO_WRITE, 0, afs_osi_credp);
-#endif
if (code) {
+ void *cfile;
+
error = code;
ZapDCE(tdc); /* bad data */
- osi_UFSTruncate(tfile, 0); /* fake truncate the segment */
+ cfile = afs_CFileOpen(&tdc->f.inode);
+ afs_CFileTruncate(cfile, 0);
+ afs_CFileClose(cfile);
afs_AdjustSize(tdc, 0); /* sets f.chunkSize to 0 */
+
afs_stats_cmperf.cacheCurrDirtyChunks--;
afs_indexFlags[tdc->index] &= ~IFDataMod; /* so it does disappear */
- afs_CFileClose(tfile);
ReleaseWriteLock(&tdc->lock);
afs_PutDCache(tdc);
break;
#endif
}
#endif
- osi_UFSClose(tfile);
ReleaseWriteLock(&tdc->lock);
afs_PutDCache(tdc);
#if !defined(AFS_VM_RDWR_ENV)
git://git.openafs.org / openafs.git / commitdiff