/* Generic read interface */
int
afs_osi_Read(struct osi_file *afile, int offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
unsigned int resid;
afs_int32 code;
afs_int32 cnt1 = 0;
AFS_STATCNT(osi_Read);
/**
* If the osi_file passed in is NULL, panic only if AFS is not shutting
* down. No point in crashing when we are already shutting down
*/
if (!afile) {
if (!afs_shuttingdown)
osi_Panic("osi_Read called with null param");
else
return -EIO;
}
if (offset != -1)
afile->offset = offset;
retry_IO:
/* Note the difference in the way the afile->offset is passed (see comments in gop_rdwr() in afs_aix_subr.c for comments) */
AFS_GUNLOCK();
#ifdef AFS_64BIT_KERNEL
code =
gop_rdwr(UIO_READ, afile->vnode, (caddr_t) aptr, asize,
&afile->offset, AFS_UIOSYS, NULL, &resid);
#else
code =
gop_rdwr(UIO_READ, afile->vnode, (caddr_t) aptr, asize,
(off_t) & afile->offset, AFS_UIOSYS, NULL, &resid);
#endif
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
osi_DisableAtimes(afile->vnode);
} else {
afs_Trace2(afs_iclSetp, CM_TRACE_READFAILED, ICL_TYPE_INT32, resid,
ICL_TYPE_INT32, code);
/*
* To handle periodic low-level EFAULT failures that we've seen with the
* Weitek chip; in all observed failed cases a second read succeeded.
*/
if ((code == EFAULT) && (cnt1++ < 5)) {
afs_stats_cmperf.osiread_efaults++;
goto retry_IO;
}
setuerror(code);
if (code > 0) {
code = -code;
}
}
return code;
}
/* Generic write interface */
int
afs_osi_Write(struct osi_file *afile, afs_int32 offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
ssize_t resid;
afs_int32 code;
AFS_STATCNT(osi_Write);
if (!afile)
osi_Panic("afs_osi_Write called with null param");
if (offset != -1)
afile->offset = offset;
AFS_GUNLOCK();
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
afile->offset, AFS_UIOSYS, 0, 0x7fffffff, &afs_osi_cred,
&resid);
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
} else {
if (code == ENOSPC)
afs_warnuser
("\n\n\n*** Cache partition is FULL - Decrease cachesize!!! ***\n\n");
if (code > 0) {
code = -code;
}
}
if (afile->proc) {
(*afile->proc) (afile, code);
}
return code;
}
/* Generic write interface */
int
afs_osi_Write(struct osi_file *afile, afs_int32 offset, void *aptr,
afs_int32 asize)
{
unsigned int resid;
afs_int32 code;
AFS_STATCNT(osi_Write);
if (!afile)
osi_Panic("afs_osi_Write called with null param");
if (offset != -1)
afile->offset = offset;
{
AFS_GUNLOCK();
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
afile->offset, AFS_UIOSYS, IO_UNIT, afs_osi_credp,
&resid);
AFS_GLOCK();
}
if (code == 0) {
code = asize - resid;
afile->offset += code;
} else {
if (code > 0) {
code *= -1;
}
}
if (afile->proc) {
(*afile->proc) (afile, code);
}
return code;
}
/* Generic write interface */
int
afs_osi_Write(register struct osi_file *afile, afs_int32 offset, void *aptr,
afs_int32 asize)
{
struct AFS_UCRED *oldCred;
long resid;
register afs_int32 code;
AFS_STATCNT(osi_Write);
if (!afile)
osi_Panic("afs_osi_Write called with null param");
if (offset != -1)
afile->offset = offset;
AFS_GUNLOCK();
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
afile->offset, AFS_UIOSYS, IO_UNIT, &resid);
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
} else {
if (code == ENOSPC)
afs_warnuser
("\n\n\n*** Cache partition is FULL - Decrease cachesize!!! ***\n\n");
setuerror(code);
code = -1;
}
if (afile->proc) {
(*afile->proc) (afile, code);
}
return code;
}
/* Generic write interface */
int
afs_osi_Write(struct osi_file *afile, afs_int32 offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
ssize_t resid;
afs_int32 code;
AFS_STATCNT(osi_Write);
if (!afile)
osi_Panic("afs_osi_Write called with null param");
if (offset != -1)
afile->offset = offset;
AFS_GUNLOCK();
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
afile->offset, AFS_UIOSYS, 0, RLIM64_INFINITY, afs_osi_credp,
&resid);
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
} else {
if (code > 0) {
code = -code;
}
}
if (afile->proc) {
(*afile->proc) (afile, code);
}
return code;
}
/* Generic write interface */
int
afs_osi_Write(struct osi_file *afile, afs_int32 offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
unsigned int resid;
afs_int32 code;
AFS_STATCNT(osi_Write);
if (!afile)
osi_Panic("afs_osi_Write called with null param");
if (offset != -1)
afile->offset = offset;
/* Note the difference in the way the afile->offset is passed (see comments in gop_rdwr() in afs_aix_subr.c for comments) */
AFS_GUNLOCK();
#ifdef AFS_64BIT_KERNEL
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
&afile->offset, AFS_UIOSYS, NULL, &resid);
#else
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
(off_t) & afile->offset, AFS_UIOSYS, NULL, &resid);
#endif
AFS_GLOCK();
if (code == 0) {
if (resid)
afs_Trace3(afs_iclSetp, CM_TRACE_WRITEFAILED, ICL_TYPE_INT32,
asize, ICL_TYPE_INT32, resid, ICL_TYPE_INT32, code);
code = asize - resid;
afile->offset += code;
} else {
afs_Trace3(afs_iclSetp, CM_TRACE_WRITEFAILED, ICL_TYPE_INT32, asize,
ICL_TYPE_INT32, resid, ICL_TYPE_INT32, code);
if (code == ENOSPC)
afs_warnuser
("\n\n\n*** Cache partition is FULL - Decrease cachesize!!! ***\n\n");
setuerror(code);
if (code > 0) {
code = -code;
}
}
if (afile->proc) {
(*afile->proc) (afile, code);
}
return code;
}
/* Generic read interface */
int
afs_osi_Read(struct osi_file *afile, int offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
afs_size_t resid;
afs_int32 code;
#ifdef AFS_DARWIN80_ENV
uio_t uio;
#endif
AFS_STATCNT(osi_Read);
/**
* If the osi_file passed in is NULL, panic only if AFS is not shutting
* down. No point in crashing when we are already shutting down
*/
if (!afile) {
if (afs_shuttingdown == AFS_RUNNING)
osi_Panic("osi_Read called with null param");
else
return -EIO;
}
if (offset != -1)
afile->offset = offset;
AFS_GUNLOCK();
#ifdef AFS_DARWIN80_ENV
uio=uio_create(1, afile->offset, AFS_UIOSYS, UIO_READ);
uio_addiov(uio, CAST_USER_ADDR_T(aptr), asize);
code = VNOP_READ(afile->vnode, uio, IO_UNIT, afs_osi_ctxtp);
resid = AFS_UIO_RESID(uio);
uio_free(uio);
#else
code =
gop_rdwr(UIO_READ, afile->vnode, (caddr_t) aptr, asize, afile->offset,
AFS_UIOSYS, IO_UNIT, &afs_osi_cred, &resid);
#endif
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
osi_DisableAtimes(afile->vnode);
} else {
afs_Trace2(afs_iclSetp, CM_TRACE_READFAILED, ICL_TYPE_INT32, resid,
ICL_TYPE_INT32, code);
if (code > 0) {
code *= -1;
}
}
return code;
}
/* Generic read interface */
int
afs_osi_Read(struct osi_file *afile, int offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
long resid;
afs_int32 code;
afs_int32 cnt1 = 0;
AFS_STATCNT(osi_Read);
/**
* If the osi_file passed in is NULL, panic only if AFS is not shutting
* down. No point in crashing when we are already shutting down
*/
if (!afile) {
if (afs_shuttingdown == AFS_RUNNING)
osi_Panic("osi_Read called with null param");
else
return -EIO;
}
if (offset != -1)
afile->offset = offset;
retry_IO:
AFS_GUNLOCK();
code =
gop_rdwr(UIO_READ, afile->vnode, (caddr_t) aptr, asize, afile->offset,
AFS_UIOSYS, IO_UNIT, &resid);
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
osi_DisableAtimes(afile->vnode);
} else {
afs_Trace2(afs_iclSetp, CM_TRACE_READFAILED, ICL_TYPE_INT32,
(afs_int32) resid, ICL_TYPE_INT32, code);
/*
* To handle periodic low-level EFAULT failures that we've seen with the
* Weitek chip; in all observed failed cases a second read succeeded.
*/
if ((code == EFAULT) && (cnt1++ < 5)) {
afs_stats_cmperf.osiread_efaults++;
goto retry_IO;
}
setuerror(code);
if (code > 0) {
code *= -1;
}
}
return code;
}
/* Generic write interface */
int
afs_osi_Write(struct osi_file *afile, afs_int32 offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
afs_size_t resid;
afs_int32 code;
#ifdef AFS_DARWIN80_ENV
uio_t uio;
#endif
AFS_STATCNT(osi_Write);
if (!afile)
osi_Panic("afs_osi_Write called with null param");
if (offset != -1)
afile->offset = offset;
{
AFS_GUNLOCK();
#ifdef AFS_DARWIN80_ENV
uio=uio_create(1, afile->offset, AFS_UIOSYS, UIO_WRITE);
uio_addiov(uio, CAST_USER_ADDR_T(aptr), asize);
code = VNOP_WRITE(afile->vnode, uio, IO_UNIT, afs_osi_ctxtp);
resid = AFS_UIO_RESID(uio);
uio_free(uio);
#else
code =
gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
afile->offset, AFS_UIOSYS, IO_UNIT, &afs_osi_cred,
&resid);
#endif
AFS_GLOCK();
}
if (code == 0) {
code = asize - resid;
afile->offset += code;
} else {
if (code > 0) {
code *= -1;
}
}
if (afile->proc) {
(*afile->proc) (afile, code);
}
return code;
}
/* Generic read interface */
int
afs_osi_Read(struct osi_file *afile, int offset, void *aptr,
afs_int32 asize)
{
afs_ucred_t *oldCred;
ssize_t resid;
afs_int32 code;
afs_int32 cnt1 = 0;
AFS_STATCNT(osi_Read);
/**
* If the osi_file passed in is NULL, panic only if AFS is not shutting
* down. No point in crashing when we are already shutting down
*/
if (!afile) {
if (!afs_shuttingdown)
osi_Panic("osi_Read called with null param");
else
return -EIO;
}
if (offset != -1)
afile->offset = offset;
AFS_GUNLOCK();
code =
gop_rdwr(UIO_READ, afile->vnode, (caddr_t) aptr, asize, afile->offset,
AFS_UIOSYS, 0, 0, afs_osi_credp, &resid);
AFS_GLOCK();
if (code == 0) {
code = asize - resid;
afile->offset += code;
osi_DisableAtimes(afile->vnode);
} else {
afs_Trace2(afs_iclSetp, CM_TRACE_READFAILED, ICL_TYPE_INT32, resid,
ICL_TYPE_INT32, code);
if (code > 0) {
code = -code;
}
}
return code;
}
