Author: rmacklem
Date: Sat Jul 14 19:51:44 2018
New Revision: 336292
URL: https://svnweb.freebsd.org/changeset/base/336292
Log:
Fix the pNFS client when mirrors aren't on the same machine.
Without this patch, the client side NFSv4.1 pNFS code erroneously did writes
and commits to both DS mirrors using the TCP connection of the first one.
For my test setup this worked, since I have both DSs running on the same
machine, but it would have failed when the DSs are on separate machines.
This patch fixes the code to use the correct TCP connection for each DS.
This patch should only affect the NFSv4.1 client when using "pnfs" mounts
to mirrored DSs.
MFC after: 2 weeks
Modified:
head/sys/fs/nfs/nfs_var.h
head/sys/fs/nfs/nfsclstate.h
head/sys/fs/nfsclient/nfs_clrpcops.c
head/sys/fs/nfsclient/nfs_clstate.c
Modified: head/sys/fs/nfs/nfs_var.h
==============================================================================
--- head/sys/fs/nfs/nfs_var.h Sat Jul 14 19:49:14 2018 (r336291)
+++ head/sys/fs/nfs/nfs_var.h Sat Jul 14 19:51:44 2018 (r336292)
@@ -607,7 +607,7 @@ void nfscl_rellayout(struct nfscllayout *, int);
struct nfscldevinfo *nfscl_getdevinfo(struct nfsclclient *, uint8_t *,
struct nfscldevinfo *);
void nfscl_reldevinfo(struct nfscldevinfo *);
-int nfscl_adddevinfo(struct nfsmount *, struct nfscldevinfo *,
+int nfscl_adddevinfo(struct nfsmount *, struct nfscldevinfo *, int,
struct nfsclflayout *);
void nfscl_freelayout(struct nfscllayout *);
void nfscl_freeflayout(struct nfsclflayout *);
Modified: head/sys/fs/nfs/nfsclstate.h
==============================================================================
--- head/sys/fs/nfs/nfsclstate.h Sat Jul 14 19:49:14 2018
(r336291)
+++ head/sys/fs/nfs/nfsclstate.h Sat Jul 14 19:51:44 2018
(r336292)
@@ -269,6 +269,7 @@ struct nfscllayout {
*/
struct nfsffm {
nfsv4stateid_t st;
+ struct nfscldevinfo *devp;
char dev[NFSX_V4DEVICEID];
uint32_t eff;
uid_t user;
@@ -290,7 +291,6 @@ struct nfsclflayout {
uint64_t nfsfl_off;
uint64_t nfsfl_end;
uint32_t nfsfl_iomode;
- struct nfscldevinfo *nfsfl_devp;
uint16_t nfsfl_flags;
union {
struct {
@@ -299,6 +299,7 @@ struct nfsclflayout {
uint32_t stripe1;
uint8_t dev[NFSX_V4DEVICEID];
uint16_t fhcnt;
+ struct nfscldevinfo *devp;
} fl;
struct {
uint64_t stripeunit;
@@ -317,6 +318,7 @@ struct nfsclflayout {
#define nfsfl_stripe1 nfsfl_un.fl.stripe1
#define nfsfl_dev nfsfl_un.fl.dev
#define nfsfl_fhcnt nfsfl_un.fl.fhcnt
+#define nfsfl_devp nfsfl_un.fl.devp
#define nfsfl_stripeunit nfsfl_un.ff.stripeunit
#define nfsfl_fflags nfsfl_un.ff.fflags
#define nfsfl_statshint nfsfl_un.ff.statshint
Modified: head/sys/fs/nfsclient/nfs_clrpcops.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clrpcops.c Sat Jul 14 19:49:14 2018
(r336291)
+++ head/sys/fs/nfsclient/nfs_clrpcops.c Sat Jul 14 19:51:44 2018
(r336292)
@@ -5722,12 +5722,15 @@ nfscl_doiods(vnode_t vp, struct uio *uiop, int *iomode
}
}
for (i = firstmirror; i < mirrorcnt && error == 0; i++){
- if ((layp->nfsly_flags & NFSLY_FLEXFILE) != 0)
+ if ((layp->nfsly_flags & NFSLY_FLEXFILE) != 0) {
dev = rflp->nfsfl_ffm[i].dev;
- else
+ dip = nfscl_getdevinfo(nmp->nm_clp, dev,
+ rflp->nfsfl_ffm[i].devp);
+ } else {
dev = rflp->nfsfl_dev;
- dip = nfscl_getdevinfo(nmp->nm_clp, dev,
- rflp->nfsfl_devp);
+ dip = nfscl_getdevinfo(nmp->nm_clp, dev,
+ rflp->nfsfl_devp);
+ }
if (dip != NULL) {
if ((rflp->nfsfl_flags & NFSFL_FLEXFILE)
!= 0)
@@ -6828,7 +6831,8 @@ nfsrv_parselayoutget(struct nfsrv_descript *nd, nfsv4s
sizeof(struct nfsffm), M_NFSFLAYOUT, M_WAITOK);
flp->nfsfl_flags = NFSFL_FLEXFILE;
flp->nfsfl_mirrorcnt = mirrorcnt;
- flp->nfsfl_devp = NULL;
+ for (j = 0; j < mirrorcnt; j++)
+ flp->nfsfl_ffm[j].devp = NULL;
flp->nfsfl_off = off;
if (flp->nfsfl_off + retlen < flp->nfsfl_off)
flp->nfsfl_end = UINT64_MAX - flp->nfsfl_off;
@@ -7588,6 +7592,7 @@ nfsrpc_layoutgetres(struct nfsmount *nmp, vnode_t vp,
struct nfsclflayout *tflp;
struct nfscldevinfo *dip;
uint8_t *dev;
+ int i, mirrorcnt;
if (laystat == NFSERR_UNKNLAYOUTTYPE) {
NFSLOCKMNT(nmp);
@@ -7604,25 +7609,35 @@ nfsrpc_layoutgetres(struct nfsmount *nmp, vnode_t vp,
if (laystat == 0) {
NFSCL_DEBUG(4, "nfsrpc_layoutgetres at FOREACH\n");
LIST_FOREACH(tflp, flhp, nfsfl_list) {
- laystat = nfscl_adddevinfo(nmp, NULL, tflp);
- NFSCL_DEBUG(4, "aft adddev=%d\n", laystat);
- if (laystat != 0) {
- if (layouttype == NFSLAYOUT_FLEXFILE)
- dev = tflp->nfsfl_ffm[0].dev;
- else
- dev = tflp->nfsfl_dev;
- laystat = nfsrpc_getdeviceinfo(nmp, dev,
- layouttype, notifybit, &dip, cred, p);
- NFSCL_DEBUG(4, "aft nfsrpc_gdi=%d\n",
- laystat);
- if (laystat != 0)
- break;
- laystat = nfscl_adddevinfo(nmp, dip, tflp);
- if (laystat != 0)
- printf("getlayout: cannot add\n");
+ if (layouttype == NFSLAYOUT_FLEXFILE)
+ mirrorcnt = tflp->nfsfl_mirrorcnt;
+ else
+ mirrorcnt = 1;
+ for (i = 0; i < mirrorcnt; i++) {
+ laystat = nfscl_adddevinfo(nmp, NULL, i, tflp);
+ NFSCL_DEBUG(4, "aft adddev=%d\n", laystat);
+ if (laystat != 0) {
+ if (layouttype == NFSLAYOUT_FLEXFILE)
+ dev = tflp->nfsfl_ffm[i].dev;
+ else
+ dev = tflp->nfsfl_dev;
+ laystat = nfsrpc_getdeviceinfo(nmp, dev,
+ layouttype, notifybit, &dip, cred,
+ p);
+ NFSCL_DEBUG(4, "aft nfsrpc_gdi=%d\n",
+ laystat);
+ if (laystat != 0)
+ goto out;
+ laystat = nfscl_adddevinfo(nmp, dip, i,
+ tflp);
+ if (laystat != 0)
+ printf("nfsrpc_layoutgetresout"
+ ": cannot add\n");
+ }
}
}
}
+out:
if (laystat == 0) {
/*
* nfscl_layout() always returns with the nfsly_lock
Modified: head/sys/fs/nfsclient/nfs_clstate.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clstate.c Sat Jul 14 19:49:14 2018
(r336291)
+++ head/sys/fs/nfsclient/nfs_clstate.c Sat Jul 14 19:51:44 2018
(r336292)
@@ -5152,7 +5152,7 @@ nfscl_mergeflayouts(struct nfsclflayouthead *fhlp,
* This function consumes the structure pointed at by dip, if not NULL.
*/
APPLESTATIC int
-nfscl_adddevinfo(struct nfsmount *nmp, struct nfscldevinfo *dip,
+nfscl_adddevinfo(struct nfsmount *nmp, struct nfscldevinfo *dip, int ind,
struct nfsclflayout *flp)
{
struct nfsclclient *clp;
@@ -5170,11 +5170,14 @@ nfscl_adddevinfo(struct nfsmount *nmp, struct nfscldev
if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
dev = flp->nfsfl_dev;
else
- dev = flp->nfsfl_ffm[0].dev;
+ dev = flp->nfsfl_ffm[ind].dev;
tdip = nfscl_finddevinfo(clp, dev);
if (tdip != NULL) {
tdip->nfsdi_layoutrefs++;
- flp->nfsfl_devp = tdip;
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
+ flp->nfsfl_devp = tdip;
+ else
+ flp->nfsfl_ffm[ind].devp = tdip;
nfscl_reldevinfo_locked(tdip);
NFSUNLOCKCLSTATE();
if (dip != NULL)
@@ -5184,7 +5187,10 @@ nfscl_adddevinfo(struct nfsmount *nmp, struct nfscldev
if (dip != NULL) {
LIST_INSERT_HEAD(&clp->nfsc_devinfo, dip, nfsdi_list);
dip->nfsdi_layoutrefs = 1;
- flp->nfsfl_devp = dip;
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
+ flp->nfsfl_devp = dip;
+ else
+ flp->nfsfl_ffm[ind].devp = dip;
}
NFSUNLOCKCLSTATE();
if (dip == NULL)
@@ -5225,15 +5231,19 @@ nfscl_freeflayout(struct nfsclflayout *flp)
{
int i, j;
- if ((flp->nfsfl_flags & NFSFL_FILE) != 0)
+ if ((flp->nfsfl_flags & NFSFL_FILE) != 0) {
for (i = 0; i < flp->nfsfl_fhcnt; i++)
free(flp->nfsfl_fh[i], M_NFSFH);
+ if (flp->nfsfl_devp != NULL)
+ flp->nfsfl_devp->nfsdi_layoutrefs--;
+ }
if ((flp->nfsfl_flags & NFSFL_FLEXFILE) != 0)
- for (i = 0; i < flp->nfsfl_mirrorcnt; i++)
+ for (i = 0; i < flp->nfsfl_mirrorcnt; i++) {
for (j = 0; j < flp->nfsfl_ffm[i].fhcnt; j++)
free(flp->nfsfl_ffm[i].fh[j], M_NFSFH);
- if (flp->nfsfl_devp != NULL)
- flp->nfsfl_devp->nfsdi_layoutrefs--;
+ if (flp->nfsfl_ffm[i].devp != NULL)
+ flp->nfsfl_ffm[i].devp->nfsdi_layoutrefs--;
+ }
free(flp, M_NFSFLAYOUT);
}
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