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-rw-r--r--fs/nfsd/blocklayout.c20
-rw-r--r--fs/nfsd/blocklayoutxdr.c111
-rw-r--r--fs/nfsd/blocklayoutxdr.h8
-rw-r--r--fs/nfsd/export.c8
-rw-r--r--fs/nfsd/export.h2
-rw-r--r--fs/nfsd/filecache.c2
-rw-r--r--fs/nfsd/localio.c2
-rw-r--r--fs/nfsd/nfs3proc.c2
-rw-r--r--fs/nfsd/nfs4layouts.c4
-rw-r--r--fs/nfsd/nfs4proc.c21
-rw-r--r--fs/nfsd/nfs4state.c119
-rw-r--r--fs/nfsd/nfs4xdr.c4
-rw-r--r--fs/nfsd/nfsctl.c31
-rw-r--r--fs/nfsd/nfsd.h6
-rw-r--r--fs/nfsd/nfsfh.c16
-rw-r--r--fs/nfsd/nfsfh.h26
-rw-r--r--fs/nfsd/nfsproc.c2
-rw-r--r--fs/nfsd/state.h1
-rw-r--r--fs/nfsd/trace.h27
-rw-r--r--fs/nfsd/vfs.c17
-rw-r--r--fs/nfsd/xdr4.h1
-rw-r--r--include/linux/sunrpc/msg_prot.h18
-rw-r--r--include/linux/sunrpc/svc.h6
-rw-r--r--include/linux/sunrpc/svcauth.h1
-rw-r--r--include/linux/sunrpc/xdr.h5
-rw-r--r--include/trace/events/sunrpc.h25
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c3
-rw-r--r--net/sunrpc/socklib.c164
-rw-r--r--net/sunrpc/svc.c20
-rw-r--r--net/sunrpc/svcsock.c5
-rw-r--r--net/sunrpc/xdr.c11
31 files changed, 341 insertions, 347 deletions
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index 08a20e5bcf7f..19078a043e85 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -178,11 +178,13 @@ nfsd4_block_proc_layoutcommit(struct inode *inode,
{
struct iomap *iomaps;
int nr_iomaps;
+ __be32 nfserr;
- nr_iomaps = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout,
- lcp->lc_up_len, &iomaps, i_blocksize(inode));
- if (nr_iomaps < 0)
- return nfserrno(nr_iomaps);
+ nfserr = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout,
+ lcp->lc_up_len, &iomaps, &nr_iomaps,
+ i_blocksize(inode));
+ if (nfserr != nfs_ok)
+ return nfserr;
return nfsd4_block_commit_blocks(inode, lcp, iomaps, nr_iomaps);
}
@@ -316,11 +318,13 @@ nfsd4_scsi_proc_layoutcommit(struct inode *inode,
{
struct iomap *iomaps;
int nr_iomaps;
+ __be32 nfserr;
- nr_iomaps = nfsd4_scsi_decode_layoutupdate(lcp->lc_up_layout,
- lcp->lc_up_len, &iomaps, i_blocksize(inode));
- if (nr_iomaps < 0)
- return nfserrno(nr_iomaps);
+ nfserr = nfsd4_scsi_decode_layoutupdate(lcp->lc_up_layout,
+ lcp->lc_up_len, &iomaps, &nr_iomaps,
+ i_blocksize(inode));
+ if (nfserr != nfs_ok)
+ return nfserr;
return nfsd4_block_commit_blocks(inode, lcp, iomaps, nr_iomaps);
}
diff --git a/fs/nfsd/blocklayoutxdr.c b/fs/nfsd/blocklayoutxdr.c
index ce78f74715ee..bcf21fde9120 100644
--- a/fs/nfsd/blocklayoutxdr.c
+++ b/fs/nfsd/blocklayoutxdr.c
@@ -112,35 +112,46 @@ nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr,
return 0;
}
-int
+/**
+ * nfsd4_block_decode_layoutupdate - decode the block layout extent array
+ * @p: pointer to the xdr data
+ * @len: number of bytes to decode
+ * @iomapp: pointer to store the decoded extent array
+ * @nr_iomapsp: pointer to store the number of extents
+ * @block_size: alignment of extent offset and length
+ *
+ * This function decodes the opaque field of the layoutupdate4 structure
+ * in a layoutcommit request for the block layout driver. The field is
+ * actually an array of extents sent by the client. It also checks that
+ * the file offset, storage offset and length of each extent are aligned
+ * by @block_size.
+ *
+ * Return values:
+ * %nfs_ok: Successful decoding, @iomapp and @nr_iomapsp are valid
+ * %nfserr_bad_xdr: The encoded array in @p is invalid
+ * %nfserr_inval: An unaligned extent found
+ * %nfserr_delay: Failed to allocate memory for @iomapp
+ */
+__be32
nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
- u32 block_size)
+ int *nr_iomapsp, u32 block_size)
{
struct iomap *iomaps;
u32 nr_iomaps, i;
- if (len < sizeof(u32)) {
- dprintk("%s: extent array too small: %u\n", __func__, len);
- return -EINVAL;
- }
+ if (len < sizeof(u32))
+ return nfserr_bad_xdr;
len -= sizeof(u32);
- if (len % PNFS_BLOCK_EXTENT_SIZE) {
- dprintk("%s: extent array invalid: %u\n", __func__, len);
- return -EINVAL;
- }
+ if (len % PNFS_BLOCK_EXTENT_SIZE)
+ return nfserr_bad_xdr;
nr_iomaps = be32_to_cpup(p++);
- if (nr_iomaps != len / PNFS_BLOCK_EXTENT_SIZE) {
- dprintk("%s: extent array size mismatch: %u/%u\n",
- __func__, len, nr_iomaps);
- return -EINVAL;
- }
+ if (nr_iomaps != len / PNFS_BLOCK_EXTENT_SIZE)
+ return nfserr_bad_xdr;
iomaps = kcalloc(nr_iomaps, sizeof(*iomaps), GFP_KERNEL);
- if (!iomaps) {
- dprintk("%s: failed to allocate extent array\n", __func__);
- return -ENOMEM;
- }
+ if (!iomaps)
+ return nfserr_delay;
for (i = 0; i < nr_iomaps; i++) {
struct pnfs_block_extent bex;
@@ -150,26 +161,18 @@ nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
p = xdr_decode_hyper(p, &bex.foff);
if (bex.foff & (block_size - 1)) {
- dprintk("%s: unaligned offset 0x%llx\n",
- __func__, bex.foff);
goto fail;
}
p = xdr_decode_hyper(p, &bex.len);
if (bex.len & (block_size - 1)) {
- dprintk("%s: unaligned length 0x%llx\n",
- __func__, bex.foff);
goto fail;
}
p = xdr_decode_hyper(p, &bex.soff);
if (bex.soff & (block_size - 1)) {
- dprintk("%s: unaligned disk offset 0x%llx\n",
- __func__, bex.soff);
goto fail;
}
bex.es = be32_to_cpup(p++);
if (bex.es != PNFS_BLOCK_READWRITE_DATA) {
- dprintk("%s: incorrect extent state %d\n",
- __func__, bex.es);
goto fail;
}
@@ -178,59 +181,71 @@ nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
}
*iomapp = iomaps;
- return nr_iomaps;
+ *nr_iomapsp = nr_iomaps;
+ return nfs_ok;
fail:
kfree(iomaps);
- return -EINVAL;
+ return nfserr_inval;
}
-int
+/**
+ * nfsd4_scsi_decode_layoutupdate - decode the scsi layout extent array
+ * @p: pointer to the xdr data
+ * @len: number of bytes to decode
+ * @iomapp: pointer to store the decoded extent array
+ * @nr_iomapsp: pointer to store the number of extents
+ * @block_size: alignment of extent offset and length
+ *
+ * This function decodes the opaque field of the layoutupdate4 structure
+ * in a layoutcommit request for the scsi layout driver. The field is
+ * actually an array of extents sent by the client. It also checks that
+ * the offset and length of each extent are aligned by @block_size.
+ *
+ * Return values:
+ * %nfs_ok: Successful decoding, @iomapp and @nr_iomapsp are valid
+ * %nfserr_bad_xdr: The encoded array in @p is invalid
+ * %nfserr_inval: An unaligned extent found
+ * %nfserr_delay: Failed to allocate memory for @iomapp
+ */
+__be32
nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
- u32 block_size)
+ int *nr_iomapsp, u32 block_size)
{
struct iomap *iomaps;
u32 nr_iomaps, expected, i;
- if (len < sizeof(u32)) {
- dprintk("%s: extent array too small: %u\n", __func__, len);
- return -EINVAL;
- }
+ if (len < sizeof(u32))
+ return nfserr_bad_xdr;
nr_iomaps = be32_to_cpup(p++);
expected = sizeof(__be32) + nr_iomaps * PNFS_SCSI_RANGE_SIZE;
- if (len != expected) {
- dprintk("%s: extent array size mismatch: %u/%u\n",
- __func__, len, expected);
- return -EINVAL;
- }
+ if (len != expected)
+ return nfserr_bad_xdr;
iomaps = kcalloc(nr_iomaps, sizeof(*iomaps), GFP_KERNEL);
- if (!iomaps) {
- dprintk("%s: failed to allocate extent array\n", __func__);
- return -ENOMEM;
- }
+ if (!iomaps)
+ return nfserr_delay;
for (i = 0; i < nr_iomaps; i++) {
u64 val;
p = xdr_decode_hyper(p, &val);
if (val & (block_size - 1)) {
- dprintk("%s: unaligned offset 0x%llx\n", __func__, val);
goto fail;
}
iomaps[i].offset = val;
p = xdr_decode_hyper(p, &val);
if (val & (block_size - 1)) {
- dprintk("%s: unaligned length 0x%llx\n", __func__, val);
goto fail;
}
iomaps[i].length = val;
}
*iomapp = iomaps;
- return nr_iomaps;
+ *nr_iomapsp = nr_iomaps;
+ return nfs_ok;
fail:
kfree(iomaps);
- return -EINVAL;
+ return nfserr_inval;
}
diff --git a/fs/nfsd/blocklayoutxdr.h b/fs/nfsd/blocklayoutxdr.h
index 4e28ac8f1127..15b3569f3d9a 100644
--- a/fs/nfsd/blocklayoutxdr.h
+++ b/fs/nfsd/blocklayoutxdr.h
@@ -54,9 +54,9 @@ __be32 nfsd4_block_encode_getdeviceinfo(struct xdr_stream *xdr,
const struct nfsd4_getdeviceinfo *gdp);
__be32 nfsd4_block_encode_layoutget(struct xdr_stream *xdr,
const struct nfsd4_layoutget *lgp);
-int nfsd4_block_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
- u32 block_size);
-int nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len, struct iomap **iomapp,
- u32 block_size);
+__be32 nfsd4_block_decode_layoutupdate(__be32 *p, u32 len,
+ struct iomap **iomapp, int *nr_iomapsp, u32 block_size);
+__be32 nfsd4_scsi_decode_layoutupdate(__be32 *p, u32 len,
+ struct iomap **iomapp, int *nr_iomapsp, u32 block_size);
#endif /* _NFSD_BLOCKLAYOUTXDR_H */
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 88ae410b4113..cadfc2bae60e 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -82,8 +82,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
int len;
struct auth_domain *dom = NULL;
int err;
- int fsidtype;
- char *ep;
+ u8 fsidtype;
struct svc_expkey key;
struct svc_expkey *ek = NULL;
@@ -109,10 +108,9 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
err = -EINVAL;
if (qword_get(&mesg, buf, PAGE_SIZE) <= 0)
goto out;
- fsidtype = simple_strtoul(buf, &ep, 10);
- if (*ep)
+ if (kstrtou8(buf, 10, &fsidtype))
goto out;
- dprintk("found fsidtype %d\n", fsidtype);
+ dprintk("found fsidtype %u\n", fsidtype);
if (key_len(fsidtype)==0) /* invalid type */
goto out;
if ((len=qword_get(&mesg, buf, PAGE_SIZE)) <= 0)
diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h
index 4d92b99c1ffd..b9c0adb3ce09 100644
--- a/fs/nfsd/export.h
+++ b/fs/nfsd/export.h
@@ -88,7 +88,7 @@ struct svc_expkey {
struct cache_head h;
struct auth_domain * ek_client;
- int ek_fsidtype;
+ u8 ek_fsidtype;
u32 ek_fsid[6];
struct path ek_path;
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c
index e108b6c705b4..732abf6b92a5 100644
--- a/fs/nfsd/filecache.c
+++ b/fs/nfsd/filecache.c
@@ -372,7 +372,7 @@ nfsd_file_put(struct nfsd_file *nf)
/**
* nfsd_file_put_local - put nfsd_file reference and arm nfsd_net_put in caller
- * @nf: nfsd_file of which to put the reference
+ * @pnf: nfsd_file of which to put the reference
*
* First save the associated net to return to caller, then put
* the reference of the nfsd_file.
diff --git a/fs/nfsd/localio.c b/fs/nfsd/localio.c
index 80d9ff6608a7..4f6468eb2adf 100644
--- a/fs/nfsd/localio.c
+++ b/fs/nfsd/localio.c
@@ -32,7 +32,7 @@
* @rpc_clnt: rpc_clnt that the client established
* @cred: cred that the client established
* @nfs_fh: filehandle to lookup
- * @nfp: place to find the nfsd_file, or store it if it was non-NULL
+ * @pnf: place to find the nfsd_file, or store it if it was non-NULL
* @fmode: fmode_t to use for open
*
* This function maps a local fh to a path on a local filesystem.
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index a817d8485d21..b6d03e1ef5f7 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -561,7 +561,7 @@ static void nfsd3_init_dirlist_pages(struct svc_rqst *rqstp,
buf->pages = rqstp->rq_next_page;
rqstp->rq_next_page += (buf->buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
- xdr_init_encode_pages(xdr, buf, buf->pages, NULL);
+ xdr_init_encode_pages(xdr, buf);
}
/*
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 290271ac4245..aea905fcaf87 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -65,7 +65,7 @@ nfsd4_alloc_devid_map(const struct svc_fh *fhp)
return;
map->fsid_type = fh->fh_fsid_type;
- memcpy(&map->fsid, fh->fh_fsid, fsid_len);
+ memcpy(&map->fsid, fh_fsid(fh), fsid_len);
spin_lock(&nfsd_devid_lock);
if (fhp->fh_export->ex_devid_map)
@@ -75,7 +75,7 @@ nfsd4_alloc_devid_map(const struct svc_fh *fhp)
list_for_each_entry(old, &nfsd_devid_hash[i], hash) {
if (old->fsid_type != fh->fh_fsid_type)
continue;
- if (memcmp(old->fsid, fh->fh_fsid,
+ if (memcmp(old->fsid, fh_fsid(fh),
key_len(old->fsid_type)))
continue;
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index f13abbb13b38..71b428efcbb5 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1917,13 +1917,6 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd42_write_res *result;
__be32 status;
- /*
- * Currently, async COPY is not reliable. Force all COPY
- * requests to be synchronous to avoid client application
- * hangs waiting for COPY completion.
- */
- nfsd4_copy_set_sync(copy, true);
-
result = &copy->cp_res;
nfsd_copy_write_verifier((__be32 *)&result->wr_verifier.data, nn);
@@ -2842,20 +2835,10 @@ nfsd4_proc_compound(struct svc_rqst *rqstp)
rqstp->rq_lease_breaker = (void **)&cstate->clp;
- trace_nfsd_compound(rqstp, args->tag, args->taglen, args->client_opcnt);
+ trace_nfsd_compound(rqstp, args->tag, args->taglen, args->opcnt);
while (!status && resp->opcnt < args->opcnt) {
op = &args->ops[resp->opcnt++];
- if (unlikely(resp->opcnt == NFSD_MAX_OPS_PER_COMPOUND)) {
- /* If there are still more operations to process,
- * stop here and report NFS4ERR_RESOURCE. */
- if (cstate->minorversion == 0 &&
- args->client_opcnt > resp->opcnt) {
- op->status = nfserr_resource;
- goto encode_op;
- }
- }
-
/*
* The XDR decode routines may have pre-set op->status;
* for example, if there is a miscellaneous XDR error
@@ -2932,7 +2915,7 @@ encode_op:
status = op->status;
}
- trace_nfsd_compound_status(args->client_opcnt, resp->opcnt,
+ trace_nfsd_compound_status(args->opcnt, resp->opcnt,
status, nfsd4_op_name(op->opnum));
nfsd4_cstate_clear_replay(cstate);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index d5694987f86f..88c347957da5 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -633,18 +633,6 @@ find_readable_file(struct nfs4_file *f)
return ret;
}
-static struct nfsd_file *
-find_rw_file(struct nfs4_file *f)
-{
- struct nfsd_file *ret;
-
- spin_lock(&f->fi_lock);
- ret = nfsd_file_get(f->fi_fds[O_RDWR]);
- spin_unlock(&f->fi_lock);
-
- return ret;
-}
-
struct nfsd_file *
find_any_file(struct nfs4_file *f)
{
@@ -1218,15 +1206,20 @@ nfs4_inc_and_copy_stateid(stateid_t *dst, struct nfs4_stid *stid)
static void put_deleg_file(struct nfs4_file *fp)
{
+ struct nfsd_file *rnf = NULL;
struct nfsd_file *nf = NULL;
spin_lock(&fp->fi_lock);
- if (--fp->fi_delegees == 0)
+ if (--fp->fi_delegees == 0) {
swap(nf, fp->fi_deleg_file);
+ swap(rnf, fp->fi_rdeleg_file);
+ }
spin_unlock(&fp->fi_lock);
if (nf)
nfsd_file_put(nf);
+ if (rnf)
+ nfs4_file_put_access(fp, NFS4_SHARE_ACCESS_READ);
}
static void nfs4_unlock_deleg_lease(struct nfs4_delegation *dp)
@@ -3872,7 +3865,6 @@ static __be32 check_forechannel_attrs(struct nfsd4_channel_attrs *ca, struct nfs
ca->headerpadsz = 0;
ca->maxreq_sz = min_t(u32, ca->maxreq_sz, maxrpc);
ca->maxresp_sz = min_t(u32, ca->maxresp_sz, maxrpc);
- ca->maxops = min_t(u32, ca->maxops, NFSD_MAX_OPS_PER_COMPOUND);
ca->maxresp_cached = min_t(u32, ca->maxresp_cached,
NFSD_SLOT_CACHE_SIZE + NFSD_MIN_HDR_SEQ_SZ);
ca->maxreqs = min_t(u32, ca->maxreqs, NFSD_MAX_SLOTS_PER_SESSION);
@@ -4697,10 +4689,16 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
}
status = nfs_ok;
if (conf) {
- old = unconf;
- unhash_client_locked(old);
- nfsd4_change_callback(conf, &unconf->cl_cb_conn);
- } else {
+ if (get_client_locked(conf) == nfs_ok) {
+ old = unconf;
+ unhash_client_locked(old);
+ nfsd4_change_callback(conf, &unconf->cl_cb_conn);
+ } else {
+ conf = NULL;
+ }
+ }
+
+ if (!conf) {
old = find_confirmed_client_by_name(&unconf->cl_name, nn);
if (old) {
status = nfserr_clid_inuse;
@@ -4717,10 +4715,14 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
}
trace_nfsd_clid_replaced(&old->cl_clientid);
}
+ status = get_client_locked(unconf);
+ if (status != nfs_ok) {
+ old = NULL;
+ goto out;
+ }
move_to_confirmed(unconf);
conf = unconf;
}
- get_client_locked(conf);
spin_unlock(&nn->client_lock);
if (conf == unconf)
fsnotify_dentry(conf->cl_nfsd_info_dentry, FS_MODIFY);
@@ -4750,6 +4752,7 @@ static void nfsd4_file_init(const struct svc_fh *fh, struct nfs4_file *fp)
INIT_LIST_HEAD(&fp->fi_clnt_odstate);
fh_copy_shallow(&fp->fi_fhandle, &fh->fh_handle);
fp->fi_deleg_file = NULL;
+ fp->fi_rdeleg_file = NULL;
fp->fi_had_conflict = false;
fp->fi_share_deny = 0;
memset(fp->fi_fds, 0, sizeof(fp->fi_fds));
@@ -6000,14 +6003,19 @@ nfs4_set_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
* "An OPEN_DELEGATE_WRITE delegation allows the client to handle,
* on its own, all opens."
*
- * Furthermore the client can use a write delegation for most READ
- * operations as well, so we require a O_RDWR file here.
+ * Furthermore, section 9.1.2 says:
+ *
+ * "In the case of READ, the server may perform the corresponding
+ * check on the access mode, or it may choose to allow READ for
+ * OPEN4_SHARE_ACCESS_WRITE, to accommodate clients whose WRITE
+ * implementation may unavoidably do reads (e.g., due to buffer
+ * cache constraints)."
*
- * Offer a write delegation in the case of a BOTH open, and ensure
- * we get the O_RDWR descriptor.
+ * We choose to offer a write delegation for OPEN with the
+ * OPEN4_SHARE_ACCESS_WRITE access mode to accommodate such clients.
*/
- if ((open->op_share_access & NFS4_SHARE_ACCESS_BOTH) == NFS4_SHARE_ACCESS_BOTH) {
- nf = find_rw_file(fp);
+ if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) {
+ nf = find_writeable_file(fp);
dl_type = deleg_ts ? OPEN_DELEGATE_WRITE_ATTRS_DELEG : OPEN_DELEGATE_WRITE;
}
@@ -6138,7 +6146,7 @@ static bool
nfs4_delegation_stat(struct nfs4_delegation *dp, struct svc_fh *currentfh,
struct kstat *stat)
{
- struct nfsd_file *nf = find_rw_file(dp->dl_stid.sc_file);
+ struct nfsd_file *nf = find_writeable_file(dp->dl_stid.sc_file);
struct path path;
int rc;
@@ -6157,6 +6165,34 @@ nfs4_delegation_stat(struct nfs4_delegation *dp, struct svc_fh *currentfh,
}
/*
+ * Add NFS4_SHARE_ACCESS_READ to the write delegation granted on OPEN
+ * with NFS4_SHARE_ACCESS_WRITE by allocating separate nfsd_file and
+ * struct file to be used for read with delegation stateid.
+ *
+ */
+static bool
+nfsd4_add_rdaccess_to_wrdeleg(struct svc_rqst *rqstp, struct nfsd4_open *open,
+ struct svc_fh *fh, struct nfs4_ol_stateid *stp)
+{
+ struct nfs4_file *fp;
+ struct nfsd_file *nf = NULL;
+
+ if ((open->op_share_access & NFS4_SHARE_ACCESS_BOTH) ==
+ NFS4_SHARE_ACCESS_WRITE) {
+ if (nfsd_file_acquire_opened(rqstp, fh, NFSD_MAY_READ, NULL, &nf))
+ return (false);
+ fp = stp->st_stid.sc_file;
+ spin_lock(&fp->fi_lock);
+ __nfs4_file_get_access(fp, NFS4_SHARE_ACCESS_READ);
+ fp = stp->st_stid.sc_file;
+ fp->fi_fds[O_RDONLY] = nf;
+ fp->fi_rdeleg_file = nf;
+ spin_unlock(&fp->fi_lock);
+ }
+ return true;
+}
+
+/*
* The Linux NFS server does not offer write delegations to NFSv4.0
* clients in order to avoid conflicts between write delegations and
* GETATTRs requesting CHANGE or SIZE attributes.
@@ -6181,8 +6217,9 @@ nfs4_delegation_stat(struct nfs4_delegation *dp, struct svc_fh *currentfh,
* open or lock state.
*/
static void
-nfs4_open_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
- struct svc_fh *currentfh)
+nfs4_open_delegation(struct svc_rqst *rqstp, struct nfsd4_open *open,
+ struct nfs4_ol_stateid *stp, struct svc_fh *currentfh,
+ struct svc_fh *fh)
{
struct nfs4_openowner *oo = openowner(stp->st_stateowner);
bool deleg_ts = nfsd4_want_deleg_timestamps(open);
@@ -6227,7 +6264,8 @@ nfs4_open_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp,
memcpy(&open->op_delegate_stateid, &dp->dl_stid.sc_stateid, sizeof(dp->dl_stid.sc_stateid));
if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE) {
- if (!nfs4_delegation_stat(dp, currentfh, &stat)) {
+ if (!nfsd4_add_rdaccess_to_wrdeleg(rqstp, open, fh, stp) ||
+ !nfs4_delegation_stat(dp, currentfh, &stat)) {
nfs4_put_stid(&dp->dl_stid);
destroy_delegation(dp);
goto out_no_deleg;
@@ -6322,6 +6360,20 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
status = nfs4_check_deleg(cl, open, &dp);
if (status)
goto out;
+ if (dp && nfsd4_is_deleg_cur(open) &&
+ (dp->dl_stid.sc_file != fp)) {
+ /*
+ * RFC8881 section 8.2.4 mandates the server to return
+ * NFS4ERR_BAD_STATEID if the selected table entry does
+ * not match the current filehandle. However returning
+ * NFS4ERR_BAD_STATEID in the OPEN can cause the client
+ * to repeatedly retry the operation with the same
+ * stateid, since the stateid itself is valid. To avoid
+ * this situation NFSD returns NFS4ERR_INVAL instead.
+ */
+ status = nfserr_inval;
+ goto out;
+ }
stp = nfsd4_find_and_lock_existing_open(fp, open);
} else {
open->op_file = NULL;
@@ -6383,7 +6435,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
* Attempt to hand out a delegation. No error return, because the
* OPEN succeeds even if we fail.
*/
- nfs4_open_delegation(open, stp, &resp->cstate.current_fh);
+ nfs4_open_delegation(rqstp, open, stp,
+ &resp->cstate.current_fh, current_fh);
/*
* If there is an existing open stateid, it must be updated and
@@ -7076,7 +7129,7 @@ nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate,
return_revoked = true;
if (typemask & SC_TYPE_DELEG)
/* Always allow REVOKED for DELEG so we can
- * retturn the appropriate error.
+ * return the appropriate error.
*/
statusmask |= SC_STATUS_REVOKED;
@@ -7119,10 +7172,6 @@ nfs4_find_file(struct nfs4_stid *s, int flags)
switch (s->sc_type) {
case SC_TYPE_DELEG:
- spin_lock(&s->sc_file->fi_lock);
- ret = nfsd_file_get(s->sc_file->fi_deleg_file);
- spin_unlock(&s->sc_file->fi_lock);
- break;
case SC_TYPE_OPEN:
case SC_TYPE_LOCK:
if (flags & RD_STATE)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 3afcdbed6e14..ea91bad4eee2 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2500,10 +2500,8 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
if (xdr_stream_decode_u32(argp->xdr, &argp->minorversion) < 0)
return false;
- if (xdr_stream_decode_u32(argp->xdr, &argp->client_opcnt) < 0)
+ if (xdr_stream_decode_u32(argp->xdr, &argp->opcnt) < 0)
return false;
- argp->opcnt = min_t(u32, argp->client_opcnt,
- NFSD_MAX_OPS_PER_COMPOUND);
if (argp->opcnt > ARRAY_SIZE(argp->iops)) {
argp->ops = vcalloc(argp->opcnt, sizeof(*argp->ops));
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 6a42cc7a845a..2909d70de559 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1436,7 +1436,7 @@ unsigned int nfsd_net_id;
static int nfsd_genl_rpc_status_compose_msg(struct sk_buff *skb,
struct netlink_callback *cb,
- struct nfsd_genl_rqstp *rqstp)
+ struct nfsd_genl_rqstp *genl_rqstp)
{
void *hdr;
u32 i;
@@ -1446,22 +1446,22 @@ static int nfsd_genl_rpc_status_compose_msg(struct sk_buff *skb,
if (!hdr)
return -ENOBUFS;
- if (nla_put_be32(skb, NFSD_A_RPC_STATUS_XID, rqstp->rq_xid) ||
- nla_put_u32(skb, NFSD_A_RPC_STATUS_FLAGS, rqstp->rq_flags) ||
- nla_put_u32(skb, NFSD_A_RPC_STATUS_PROG, rqstp->rq_prog) ||
- nla_put_u32(skb, NFSD_A_RPC_STATUS_PROC, rqstp->rq_proc) ||
- nla_put_u8(skb, NFSD_A_RPC_STATUS_VERSION, rqstp->rq_vers) ||
+ if (nla_put_be32(skb, NFSD_A_RPC_STATUS_XID, genl_rqstp->rq_xid) ||
+ nla_put_u32(skb, NFSD_A_RPC_STATUS_FLAGS, genl_rqstp->rq_flags) ||
+ nla_put_u32(skb, NFSD_A_RPC_STATUS_PROG, genl_rqstp->rq_prog) ||
+ nla_put_u32(skb, NFSD_A_RPC_STATUS_PROC, genl_rqstp->rq_proc) ||
+ nla_put_u8(skb, NFSD_A_RPC_STATUS_VERSION, genl_rqstp->rq_vers) ||
nla_put_s64(skb, NFSD_A_RPC_STATUS_SERVICE_TIME,
- ktime_to_us(rqstp->rq_stime),
+ ktime_to_us(genl_rqstp->rq_stime),
NFSD_A_RPC_STATUS_PAD))
return -ENOBUFS;
- switch (rqstp->rq_saddr.sa_family) {
+ switch (genl_rqstp->rq_saddr.sa_family) {
case AF_INET: {
const struct sockaddr_in *s_in, *d_in;
- s_in = (const struct sockaddr_in *)&rqstp->rq_saddr;
- d_in = (const struct sockaddr_in *)&rqstp->rq_daddr;
+ s_in = (const struct sockaddr_in *)&genl_rqstp->rq_saddr;
+ d_in = (const struct sockaddr_in *)&genl_rqstp->rq_daddr;
if (nla_put_in_addr(skb, NFSD_A_RPC_STATUS_SADDR4,
s_in->sin_addr.s_addr) ||
nla_put_in_addr(skb, NFSD_A_RPC_STATUS_DADDR4,
@@ -1476,8 +1476,8 @@ static int nfsd_genl_rpc_status_compose_msg(struct sk_buff *skb,
case AF_INET6: {
const struct sockaddr_in6 *s_in, *d_in;
- s_in = (const struct sockaddr_in6 *)&rqstp->rq_saddr;
- d_in = (const struct sockaddr_in6 *)&rqstp->rq_daddr;
+ s_in = (const struct sockaddr_in6 *)&genl_rqstp->rq_saddr;
+ d_in = (const struct sockaddr_in6 *)&genl_rqstp->rq_daddr;
if (nla_put_in6_addr(skb, NFSD_A_RPC_STATUS_SADDR6,
&s_in->sin6_addr) ||
nla_put_in6_addr(skb, NFSD_A_RPC_STATUS_DADDR6,
@@ -1491,9 +1491,9 @@ static int nfsd_genl_rpc_status_compose_msg(struct sk_buff *skb,
}
}
- for (i = 0; i < rqstp->rq_opcnt; i++)
+ for (i = 0; i < genl_rqstp->rq_opcnt; i++)
if (nla_put_u32(skb, NFSD_A_RPC_STATUS_COMPOUND_OPS,
- rqstp->rq_opnum[i]))
+ genl_rqstp->rq_opnum[i]))
return -ENOBUFS;
genlmsg_end(skb, hdr);
@@ -1569,7 +1569,8 @@ int nfsd_nl_rpc_status_get_dumpit(struct sk_buff *skb,
int j;
args = rqstp->rq_argp;
- genl_rqstp.rq_opcnt = args->opcnt;
+ genl_rqstp.rq_opcnt = min_t(u32, args->opcnt,
+ ARRAY_SIZE(genl_rqstp.rq_opnum));
for (j = 0; j < genl_rqstp.rq_opcnt; j++)
genl_rqstp.rq_opnum[j] =
args->ops[j].opnum;
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 1bfd0b4e9af7..1cd0bed57bc2 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -57,9 +57,6 @@ struct readdir_cd {
__be32 err; /* 0, nfserr, or nfserr_eof */
};
-/* Maximum number of operations per session compound */
-#define NFSD_MAX_OPS_PER_COMPOUND 50
-
struct nfsd_genl_rqstp {
struct sockaddr rq_daddr;
struct sockaddr rq_saddr;
@@ -72,7 +69,7 @@ struct nfsd_genl_rqstp {
/* NFSv4 compound */
u32 rq_opcnt;
- u32 rq_opnum[NFSD_MAX_OPS_PER_COMPOUND];
+ u32 rq_opnum[16];
};
extern struct svc_program nfsd_programs[];
@@ -283,6 +280,7 @@ void nfsd_lockd_shutdown(void);
#define nfserr_cb_path_down cpu_to_be32(NFSERR_CB_PATH_DOWN)
#define nfserr_locked cpu_to_be32(NFSERR_LOCKED)
#define nfserr_wrongsec cpu_to_be32(NFSERR_WRONGSEC)
+#define nfserr_delay cpu_to_be32(NFS4ERR_DELAY)
#define nfserr_badiomode cpu_to_be32(NFS4ERR_BADIOMODE)
#define nfserr_badlayout cpu_to_be32(NFS4ERR_BADLAYOUT)
#define nfserr_bad_session_digest cpu_to_be32(NFS4ERR_BAD_SESSION_DIGEST)
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index aef474f1b84b..74cf1f4de174 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -172,6 +172,8 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct net *net,
if (len == 0)
return error;
if (fh->fh_fsid_type == FSID_MAJOR_MINOR) {
+ u32 *fsid = fh_fsid(fh);
+
/* deprecated, convert to type 3 */
len = key_len(FSID_ENCODE_DEV)/4;
fh->fh_fsid_type = FSID_ENCODE_DEV;
@@ -181,17 +183,17 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct net *net,
* confuses sparse, so we must use __force here to
* keep it from complaining.
*/
- fh->fh_fsid[0] = new_encode_dev(MKDEV(ntohl((__force __be32)fh->fh_fsid[0]),
- ntohl((__force __be32)fh->fh_fsid[1])));
- fh->fh_fsid[1] = fh->fh_fsid[2];
+ fsid[0] = new_encode_dev(MKDEV(ntohl((__force __be32)fsid[0]),
+ ntohl((__force __be32)fsid[1])));
+ fsid[1] = fsid[2];
}
data_left -= len;
if (data_left < 0)
return error;
exp = rqst_exp_find(rqstp ? &rqstp->rq_chandle : NULL,
net, client, gssclient,
- fh->fh_fsid_type, fh->fh_fsid);
- fid = (struct fid *)(fh->fh_fsid + len);
+ fh->fh_fsid_type, fh_fsid(fh));
+ fid = (struct fid *)(fh_fsid(fh) + len);
error = nfserr_stale;
if (IS_ERR(exp)) {
@@ -463,7 +465,7 @@ static void _fh_update(struct svc_fh *fhp, struct svc_export *exp,
{
if (dentry != exp->ex_path.dentry) {
struct fid *fid = (struct fid *)
- (fhp->fh_handle.fh_fsid + fhp->fh_handle.fh_size/4 - 1);
+ (fh_fsid(&fhp->fh_handle) + fhp->fh_handle.fh_size/4 - 1);
int maxsize = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
int fh_flags = (exp->ex_flags & NFSEXP_NOSUBTREECHECK) ? 0 :
EXPORT_FH_CONNECTABLE;
@@ -614,7 +616,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
fhp->fh_handle.fh_auth_type = 0;
mk_fsid(fhp->fh_handle.fh_fsid_type,
- fhp->fh_handle.fh_fsid,
+ fh_fsid(&fhp->fh_handle),
ex_dev,
d_inode(exp->ex_path.dentry)->i_ino,
exp->ex_fsid, exp->ex_uuid);
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index 5103c2f4d225..1cf979722521 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -49,18 +49,19 @@ struct knfsd_fh {
* Points to the current size while
* building a new file handle.
*/
- union {
- char fh_raw[NFS4_FHSIZE];
- struct {
- u8 fh_version; /* == 1 */
- u8 fh_auth_type; /* deprecated */
- u8 fh_fsid_type;
- u8 fh_fileid_type;
- u32 fh_fsid[]; /* flexible-array member */
- };
- };
+ u8 fh_raw[NFS4_FHSIZE];
};
+#define fh_version fh_raw[0]
+#define fh_auth_type fh_raw[1]
+#define fh_fsid_type fh_raw[2]
+#define fh_fileid_type fh_raw[3]
+
+static inline u32 *fh_fsid(const struct knfsd_fh *fh)
+{
+ return (u32 *)&fh->fh_raw[4];
+}
+
static inline __u32 ino_t_to_u32(ino_t ino)
{
return (__u32) ino;
@@ -260,9 +261,12 @@ static inline bool fh_match(const struct knfsd_fh *fh1,
static inline bool fh_fsid_match(const struct knfsd_fh *fh1,
const struct knfsd_fh *fh2)
{
+ u32 *fsid1 = fh_fsid(fh1);
+ u32 *fsid2 = fh_fsid(fh2);
+
if (fh1->fh_fsid_type != fh2->fh_fsid_type)
return false;
- if (memcmp(fh1->fh_fsid, fh2->fh_fsid, key_len(fh1->fh_fsid_type)) != 0)
+ if (memcmp(fsid1, fsid2, key_len(fh1->fh_fsid_type)) != 0)
return false;
return true;
}
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index c10fa8128a8a..8f71f5748c75 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -575,7 +575,7 @@ static void nfsd_init_dirlist_pages(struct svc_rqst *rqstp,
buf->pages = rqstp->rq_next_page;
rqstp->rq_next_page++;
- xdr_init_encode_pages(xdr, buf, buf->pages, NULL);
+ xdr_init_encode_pages(xdr, buf);
}
/*
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 1995bca158b8..8adc2550129e 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -665,6 +665,7 @@ struct nfs4_file {
atomic_t fi_access[2];
u32 fi_share_deny;
struct nfsd_file *fi_deleg_file;
+ struct nfsd_file *fi_rdeleg_file;
int fi_delegees;
struct knfsd_fh fi_fhandle;
bool fi_had_conflict;
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 3c5505ef5e3a..a664fdf1161e 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -344,7 +344,7 @@ TRACE_EVENT(nfsd_exp_find_key,
int status),
TP_ARGS(key, status),
TP_STRUCT__entry(
- __field(int, fsidtype)
+ __field(u8, fsidtype)
__array(u32, fsid, 6)
__string(auth_domain, key->ek_client->name)
__field(int, status)
@@ -367,7 +367,7 @@ TRACE_EVENT(nfsd_expkey_update,
TP_PROTO(const struct svc_expkey *key, const char *exp_path),
TP_ARGS(key, exp_path),
TP_STRUCT__entry(
- __field(int, fsidtype)
+ __field(u8, fsidtype)
__array(u32, fsid, 6)
__string(auth_domain, key->ek_client->name)
__string(path, exp_path)
@@ -1108,7 +1108,6 @@ DEFINE_NFSD_FILE_EVENT(nfsd_file_free);
DEFINE_NFSD_FILE_EVENT(nfsd_file_unhash);
DEFINE_NFSD_FILE_EVENT(nfsd_file_put);
DEFINE_NFSD_FILE_EVENT(nfsd_file_closing);
-DEFINE_NFSD_FILE_EVENT(nfsd_file_unhash_and_queue);
TRACE_EVENT(nfsd_file_alloc,
TP_PROTO(
@@ -1344,9 +1343,7 @@ DEFINE_EVENT(nfsd_file_gc_class, name, \
TP_ARGS(nf))
DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_lru_add);
-DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_lru_add_disposed);
DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_lru_del);
-DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_lru_del_disposed);
DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_gc_in_use);
DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_gc_writeback);
DEFINE_NFSD_FILE_GC_EVENT(nfsd_file_gc_referenced);
@@ -1380,7 +1377,6 @@ DEFINE_EVENT(nfsd_file_lruwalk_class, name, \
TP_ARGS(removed, remaining))
DEFINE_NFSD_FILE_LRUWALK_EVENT(nfsd_file_gc_removed);
-DEFINE_NFSD_FILE_LRUWALK_EVENT(nfsd_file_gc_recent);
DEFINE_NFSD_FILE_LRUWALK_EVENT(nfsd_file_shrinker_removed);
TRACE_EVENT(nfsd_file_close,
@@ -2103,25 +2099,6 @@ TRACE_EVENT(nfsd_ctl_maxblksize,
)
);
-TRACE_EVENT(nfsd_ctl_maxconn,
- TP_PROTO(
- const struct net *net,
- int maxconn
- ),
- TP_ARGS(net, maxconn),
- TP_STRUCT__entry(
- __field(unsigned int, netns_ino)
- __field(int, maxconn)
- ),
- TP_fast_assign(
- __entry->netns_ino = net->ns.inum;
- __entry->maxconn = maxconn;
- ),
- TP_printk("maxconn=%d",
- __entry->maxconn
- )
-);
-
TRACE_EVENT(nfsd_ctl_time,
TP_PROTO(
const struct net *net,
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index cd689df2ca5d..ee78b6fb1709 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1086,10 +1086,13 @@ __be32 nfsd_iter_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
{
unsigned long v, total;
struct iov_iter iter;
- loff_t ppos = offset;
+ struct kiocb kiocb;
ssize_t host_err;
size_t len;
+ init_sync_kiocb(&kiocb, file);
+ kiocb.ki_pos = offset;
+
v = 0;
total = *count;
while (total) {
@@ -1104,7 +1107,7 @@ __be32 nfsd_iter_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
trace_nfsd_read_vector(rqstp, fhp, offset, *count);
iov_iter_bvec(&iter, ITER_DEST, rqstp->rq_bvec, v, *count);
- host_err = vfs_iter_read(file, &iter, &ppos, 0);
+ host_err = vfs_iocb_iter_read(file, &kiocb, &iter);
return nfsd_finish_read(rqstp, fhp, file, offset, count, eof, host_err);
}
@@ -1170,15 +1173,14 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct file *file = nf->nf_file;
struct super_block *sb = file_inode(file)->i_sb;
+ struct kiocb kiocb;
struct svc_export *exp;
struct iov_iter iter;
errseq_t since;
__be32 nfserr;
int host_err;
- loff_t pos = offset;
unsigned long exp_op_flags = 0;
unsigned int pflags = current->flags;
- rwf_t flags = 0;
bool restore_flags = false;
unsigned int nvecs;
@@ -1204,16 +1206,17 @@ nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (!EX_ISSYNC(exp))
stable = NFS_UNSTABLE;
-
+ init_sync_kiocb(&kiocb, file);
+ kiocb.ki_pos = offset;
if (stable && !fhp->fh_use_wgather)
- flags |= RWF_SYNC;
+ kiocb.ki_flags |= IOCB_DSYNC;
nvecs = xdr_buf_to_bvec(rqstp->rq_bvec, rqstp->rq_maxpages, payload);
iov_iter_bvec(&iter, ITER_SOURCE, rqstp->rq_bvec, nvecs, *cnt);
since = READ_ONCE(file->f_wb_err);
if (verf)
nfsd_copy_write_verifier(verf, nn);
- host_err = vfs_iter_write(file, &iter, &pos, flags);
+ host_err = vfs_iocb_iter_write(file, &kiocb, &iter);
if (host_err < 0) {
commit_reset_write_verifier(nn, rqstp, host_err);
goto out_nfserr;
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index aa2a356da784..a23bc56051ca 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -870,7 +870,6 @@ struct nfsd4_compoundargs {
char * tag;
u32 taglen;
u32 minorversion;
- u32 client_opcnt;
u32 opcnt;
bool splice_ok;
struct nfsd4_op *ops;
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index c4b0eb2b2f04..ada17b57ca44 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -69,15 +69,17 @@ enum rpc_reject_stat {
};
enum rpc_auth_stat {
- RPC_AUTH_OK = 0,
- RPC_AUTH_BADCRED = 1,
- RPC_AUTH_REJECTEDCRED = 2,
- RPC_AUTH_BADVERF = 3,
- RPC_AUTH_REJECTEDVERF = 4,
- RPC_AUTH_TOOWEAK = 5,
+ RPC_AUTH_OK = 0, /* success */
+ RPC_AUTH_BADCRED = 1, /* bad credential (seal broken) */
+ RPC_AUTH_REJECTEDCRED = 2, /* client must begin new session */
+ RPC_AUTH_BADVERF = 3, /* bad verifier (seal broken) */
+ RPC_AUTH_REJECTEDVERF = 4, /* verifier expired or replayed */
+ RPC_AUTH_TOOWEAK = 5, /* rejected for security reasons */
+ RPC_AUTH_INVALIDRESP = 6, /* bogus response verifier */
+ RPC_AUTH_FAILED = 7, /* reason unknown */
/* RPCSEC_GSS errors */
- RPCSEC_GSS_CREDPROBLEM = 13,
- RPCSEC_GSS_CTXPROBLEM = 14
+ RPCSEC_GSS_CREDPROBLEM = 13, /* no credentials for user */
+ RPCSEC_GSS_CTXPROBLEM = 14 /* problem with context */
};
#define RPC_MAXNETNAMELEN 256
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 48666b83fe68..40cbe81360ed 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -245,10 +245,10 @@ struct svc_rqst {
* initialisation success.
*/
- unsigned long bc_to_initval;
- unsigned int bc_to_retries;
- void ** rq_lease_breaker; /* The v4 client breaking a lease */
+ unsigned long bc_to_initval;
+ unsigned int bc_to_retries;
unsigned int rq_status_counter; /* RPC processing counter */
+ void **rq_lease_breaker; /* The v4 client breaking a lease */
};
/* bits for rq_flags */
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
index 2e111153f7cd..4b92fec23a49 100644
--- a/include/linux/sunrpc/svcauth.h
+++ b/include/linux/sunrpc/svcauth.h
@@ -86,7 +86,6 @@ struct auth_domain {
enum svc_auth_status {
SVC_GARBAGE = 1,
- SVC_SYSERR,
SVC_VALID,
SVC_NEGATIVE,
SVC_OK,
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index a2ab813a9800..e3358c630ba1 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -119,6 +119,8 @@ xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
#define rpc_autherr_badverf cpu_to_be32(RPC_AUTH_BADVERF)
#define rpc_autherr_rejectedverf cpu_to_be32(RPC_AUTH_REJECTEDVERF)
#define rpc_autherr_tooweak cpu_to_be32(RPC_AUTH_TOOWEAK)
+#define rpc_autherr_invalidresp cpu_to_be32(RPC_AUTH_INVALIDRESP)
+#define rpc_autherr_failed cpu_to_be32(RPC_AUTH_FAILED)
#define rpcsec_gsserr_credproblem cpu_to_be32(RPCSEC_GSS_CREDPROBLEM)
#define rpcsec_gsserr_ctxproblem cpu_to_be32(RPCSEC_GSS_CTXPROBLEM)
@@ -242,8 +244,7 @@ typedef int (*kxdrdproc_t)(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
extern void xdr_init_encode(struct xdr_stream *xdr, struct xdr_buf *buf,
__be32 *p, struct rpc_rqst *rqst);
-extern void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf,
- struct page **pages, struct rpc_rqst *rqst);
+void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf);
extern __be32 *xdr_reserve_space(struct xdr_stream *xdr, size_t nbytes);
extern int xdr_reserve_space_vec(struct xdr_stream *xdr, size_t nbytes);
extern void __xdr_commit_encode(struct xdr_stream *xdr);
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index aad697da1580..750ecce56930 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -1691,7 +1691,6 @@ SVC_RQST_FLAG_LIST
__print_flags(flags, "|", SVC_RQST_FLAG_LIST)
TRACE_DEFINE_ENUM(SVC_GARBAGE);
-TRACE_DEFINE_ENUM(SVC_SYSERR);
TRACE_DEFINE_ENUM(SVC_VALID);
TRACE_DEFINE_ENUM(SVC_NEGATIVE);
TRACE_DEFINE_ENUM(SVC_OK);
@@ -1704,7 +1703,6 @@ TRACE_DEFINE_ENUM(SVC_COMPLETE);
#define show_svc_auth_status(status) \
__print_symbolic(status, \
{ SVC_GARBAGE, "SVC_GARBAGE" }, \
- { SVC_SYSERR, "SVC_SYSERR" }, \
{ SVC_VALID, "SVC_VALID" }, \
{ SVC_NEGATIVE, "SVC_NEGATIVE" }, \
{ SVC_OK, "SVC_OK" }, \
@@ -2123,22 +2121,35 @@ TRACE_EVENT(svc_xprt_accept,
)
);
-TRACE_EVENT(svc_wake_up,
- TP_PROTO(int pid),
+DECLARE_EVENT_CLASS(svc_pool_thread_event,
+ TP_PROTO(const struct svc_pool *pool, pid_t pid),
- TP_ARGS(pid),
+ TP_ARGS(pool, pid),
TP_STRUCT__entry(
- __field(int, pid)
+ __field(unsigned int, pool_id)
+ __field(pid_t, pid)
),
TP_fast_assign(
+ __entry->pool_id = pool->sp_id;
__entry->pid = pid;
),
- TP_printk("pid=%d", __entry->pid)
+ TP_printk("pool=%u pid=%d", __entry->pool_id, __entry->pid)
);
+#define DEFINE_SVC_POOL_THREAD_EVENT(name) \
+ DEFINE_EVENT(svc_pool_thread_event, svc_pool_thread_##name, \
+ TP_PROTO( \
+ const struct svc_pool *pool, pid_t pid \
+ ), \
+ TP_ARGS(pool, pid))
+
+DEFINE_SVC_POOL_THREAD_EVENT(wake);
+DEFINE_SVC_POOL_THREAD_EVENT(running);
+DEFINE_SVC_POOL_THREAD_EVENT(noidle);
+
TRACE_EVENT(svc_alloc_arg_err,
TP_PROTO(
unsigned int requested,
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 73a90ad873fb..e82212f6b562 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1628,7 +1628,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp)
int ret;
struct sunrpc_net *sn = net_generic(SVC_NET(rqstp), sunrpc_net_id);
- rqstp->rq_auth_stat = rpc_autherr_badcred;
+ rqstp->rq_auth_stat = rpc_autherr_failed;
if (!svcdata)
svcdata = kmalloc(sizeof(*svcdata), GFP_KERNEL);
if (!svcdata)
@@ -1638,6 +1638,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp)
svcdata->rsci = NULL;
gc = &svcdata->clcred;
+ rqstp->rq_auth_stat = rpc_autherr_badcred;
if (!svcauth_gss_decode_credbody(&rqstp->rq_arg_stream, gc, &rpcstart))
goto auth_err;
if (gc->gc_v != RPC_GSS_VERSION)
diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
index 1b2b84feeec6..4e92e2a50168 100644
--- a/net/sunrpc/socklib.c
+++ b/net/sunrpc/socklib.c
@@ -27,97 +27,60 @@
struct xdr_skb_reader {
struct sk_buff *skb;
unsigned int offset;
+ bool need_checksum;
size_t count;
__wsum csum;
};
-typedef size_t (*xdr_skb_read_actor)(struct xdr_skb_reader *desc, void *to,
- size_t len);
-
/**
* xdr_skb_read_bits - copy some data bits from skb to internal buffer
* @desc: sk_buff copy helper
* @to: copy destination
* @len: number of bytes to copy
*
- * Possibly called several times to iterate over an sk_buff and copy
- * data out of it.
+ * Possibly called several times to iterate over an sk_buff and copy data out of
+ * it.
*/
static size_t
xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len)
{
- if (len > desc->count)
- len = desc->count;
- if (unlikely(skb_copy_bits(desc->skb, desc->offset, to, len)))
- return 0;
- desc->count -= len;
- desc->offset += len;
- return len;
-}
+ len = min(len, desc->count);
+
+ if (desc->need_checksum) {
+ __wsum csum;
+
+ csum = skb_copy_and_csum_bits(desc->skb, desc->offset, to, len);
+ desc->csum = csum_block_add(desc->csum, csum, desc->offset);
+ } else {
+ if (unlikely(skb_copy_bits(desc->skb, desc->offset, to, len)))
+ return 0;
+ }
-/**
- * xdr_skb_read_and_csum_bits - copy and checksum from skb to buffer
- * @desc: sk_buff copy helper
- * @to: copy destination
- * @len: number of bytes to copy
- *
- * Same as skb_read_bits, but calculate a checksum at the same time.
- */
-static size_t xdr_skb_read_and_csum_bits(struct xdr_skb_reader *desc, void *to, size_t len)
-{
- unsigned int pos;
- __wsum csum2;
-
- if (len > desc->count)
- len = desc->count;
- pos = desc->offset;
- csum2 = skb_copy_and_csum_bits(desc->skb, pos, to, len);
- desc->csum = csum_block_add(desc->csum, csum2, pos);
desc->count -= len;
desc->offset += len;
return len;
}
-/**
- * xdr_partial_copy_from_skb - copy data out of an skb
- * @xdr: target XDR buffer
- * @base: starting offset
- * @desc: sk_buff copy helper
- * @copy_actor: virtual method for copying data
- *
- */
static ssize_t
-xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct xdr_skb_reader *desc, xdr_skb_read_actor copy_actor)
+xdr_partial_copy_from_skb(struct xdr_buf *xdr, struct xdr_skb_reader *desc)
{
- struct page **ppage = xdr->pages;
- unsigned int len, pglen = xdr->page_len;
- ssize_t copied = 0;
- size_t ret;
-
- len = xdr->head[0].iov_len;
- if (base < len) {
- len -= base;
- ret = copy_actor(desc, (char *)xdr->head[0].iov_base + base, len);
- copied += ret;
- if (ret != len || !desc->count)
- goto out;
- base = 0;
- } else
- base -= len;
-
- if (unlikely(pglen == 0))
- goto copy_tail;
- if (unlikely(base >= pglen)) {
- base -= pglen;
- goto copy_tail;
- }
- if (base || xdr->page_base) {
- pglen -= base;
- base += xdr->page_base;
- ppage += base >> PAGE_SHIFT;
- base &= ~PAGE_MASK;
- }
- do {
+ struct page **ppage = xdr->pages + (xdr->page_base >> PAGE_SHIFT);
+ unsigned int poff = xdr->page_base & ~PAGE_MASK;
+ unsigned int pglen = xdr->page_len;
+ ssize_t copied = 0;
+ size_t ret;
+
+ if (xdr->head[0].iov_len == 0)
+ return 0;
+
+ ret = xdr_skb_read_bits(desc, xdr->head[0].iov_base,
+ xdr->head[0].iov_len);
+ if (ret != xdr->head[0].iov_len || !desc->count)
+ return ret;
+ copied += ret;
+
+ while (pglen) {
+ unsigned int len = min(PAGE_SIZE - poff, pglen);
char *kaddr;
/* ACL likes to be lazy in allocating pages - ACLs
@@ -126,36 +89,29 @@ xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct xdr_skb
*ppage = alloc_page(GFP_NOWAIT | __GFP_NOWARN);
if (unlikely(*ppage == NULL)) {
if (copied == 0)
- copied = -ENOMEM;
- goto out;
+ return -ENOMEM;
+ return copied;
}
}
- len = PAGE_SIZE;
kaddr = kmap_atomic(*ppage);
- if (base) {
- len -= base;
- if (pglen < len)
- len = pglen;
- ret = copy_actor(desc, kaddr + base, len);
- base = 0;
- } else {
- if (pglen < len)
- len = pglen;
- ret = copy_actor(desc, kaddr, len);
- }
+ ret = xdr_skb_read_bits(desc, kaddr + poff, len);
flush_dcache_page(*ppage);
kunmap_atomic(kaddr);
+
copied += ret;
if (ret != len || !desc->count)
- goto out;
+ return copied;
ppage++;
- } while ((pglen -= len) != 0);
-copy_tail:
- len = xdr->tail[0].iov_len;
- if (base < len)
- copied += copy_actor(desc, (char *)xdr->tail[0].iov_base + base, len - base);
-out:
+ pglen -= len;
+ poff = 0;
+ }
+
+ if (xdr->tail[0].iov_len) {
+ copied += xdr_skb_read_bits(desc, xdr->tail[0].iov_base,
+ xdr->tail[0].iov_len);
+ }
+
return copied;
}
@@ -169,17 +125,22 @@ out:
*/
int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
{
- struct xdr_skb_reader desc;
-
- desc.skb = skb;
- desc.offset = 0;
- desc.count = skb->len - desc.offset;
+ struct xdr_skb_reader desc = {
+ .skb = skb,
+ .count = skb->len - desc.offset,
+ };
- if (skb_csum_unnecessary(skb))
- goto no_checksum;
+ if (skb_csum_unnecessary(skb)) {
+ if (xdr_partial_copy_from_skb(xdr, &desc) < 0)
+ return -1;
+ if (desc.count)
+ return -1;
+ return 0;
+ }
+ desc.need_checksum = true;
desc.csum = csum_partial(skb->data, desc.offset, skb->csum);
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_and_csum_bits) < 0)
+ if (xdr_partial_copy_from_skb(xdr, &desc) < 0)
return -1;
if (desc.offset != skb->len) {
__wsum csum2;
@@ -194,14 +155,7 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
!skb->csum_complete_sw)
netdev_rx_csum_fault(skb->dev, skb);
return 0;
-no_checksum:
- if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_bits) < 0)
- return -1;
- if (desc.count)
- return -1;
- return 0;
}
-EXPORT_SYMBOL_GPL(csum_partial_copy_to_xdr);
static inline int xprt_sendmsg(struct socket *sock, struct msghdr *msg,
size_t seek)
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 9c93b854e809..b1fab3a69544 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -751,14 +751,16 @@ void svc_pool_wake_idle_thread(struct svc_pool *pool)
WRITE_ONCE(rqstp->rq_qtime, ktime_get());
if (!task_is_running(rqstp->rq_task)) {
wake_up_process(rqstp->rq_task);
- trace_svc_wake_up(rqstp->rq_task->pid);
+ trace_svc_pool_thread_wake(pool, rqstp->rq_task->pid);
percpu_counter_inc(&pool->sp_threads_woken);
+ } else {
+ trace_svc_pool_thread_running(pool, rqstp->rq_task->pid);
}
rcu_read_unlock();
return;
}
rcu_read_unlock();
-
+ trace_svc_pool_thread_noidle(pool, 0);
}
EXPORT_SYMBOL_GPL(svc_pool_wake_idle_thread);
@@ -1332,6 +1334,9 @@ svc_process_common(struct svc_rqst *rqstp)
int pr, rc;
__be32 *p;
+ /* Reset the accept_stat for the RPC */
+ rqstp->rq_accept_statp = NULL;
+
/* Will be turned off only when NFSv4 Sessions are used */
set_bit(RQ_USEDEFERRAL, &rqstp->rq_flags);
clear_bit(RQ_DROPME, &rqstp->rq_flags);
@@ -1373,8 +1378,6 @@ svc_process_common(struct svc_rqst *rqstp)
case SVC_GARBAGE:
rqstp->rq_auth_stat = rpc_autherr_badcred;
goto err_bad_auth;
- case SVC_SYSERR:
- goto err_system_err;
case SVC_DENIED:
goto err_bad_auth;
case SVC_CLOSE:
@@ -1385,7 +1388,8 @@ svc_process_common(struct svc_rqst *rqstp)
goto sendit;
default:
pr_warn_once("Unexpected svc_auth_status (%d)\n", auth_res);
- goto err_system_err;
+ rqstp->rq_auth_stat = rpc_autherr_failed;
+ goto err_bad_auth;
}
if (progp == NULL)
@@ -1512,12 +1516,6 @@ err_bad_proc:
serv->sv_stats->rpcbadfmt++;
*rqstp->rq_accept_statp = rpc_proc_unavail;
goto sendit;
-
-err_system_err:
- if (serv->sv_stats)
- serv->sv_stats->rpcbadfmt++;
- *rqstp->rq_accept_statp = rpc_system_err;
- goto sendit;
}
/*
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index e1c85123b445..46c156b121db 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1197,7 +1197,7 @@ err_noclose:
* that the pages backing @xdr are unchanging.
*/
static int svc_tcp_sendmsg(struct svc_sock *svsk, struct svc_rqst *rqstp,
- rpc_fraghdr marker, unsigned int *sentp)
+ rpc_fraghdr marker, int *sentp)
{
struct msghdr msg = {
.msg_flags = MSG_SPLICE_PAGES,
@@ -1247,8 +1247,7 @@ static int svc_tcp_sendto(struct svc_rqst *rqstp)
struct xdr_buf *xdr = &rqstp->rq_res;
rpc_fraghdr marker = cpu_to_be32(RPC_LAST_STREAM_FRAGMENT |
(u32)xdr->len);
- unsigned int sent;
- int err;
+ int sent, err;
svc_tcp_release_ctxt(xprt, rqstp->rq_xprt_ctxt);
rqstp->rq_xprt_ctxt = NULL;
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 2ea00e354ba6..1346fdf33835 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -993,21 +993,18 @@ EXPORT_SYMBOL_GPL(xdr_init_encode);
* xdr_init_encode_pages - Initialize an xdr_stream for encoding into pages
* @xdr: pointer to xdr_stream struct
* @buf: pointer to XDR buffer into which to encode data
- * @pages: list of pages to decode into
- * @rqst: pointer to controlling rpc_rqst, for debugging
*
*/
-void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf,
- struct page **pages, struct rpc_rqst *rqst)
+void xdr_init_encode_pages(struct xdr_stream *xdr, struct xdr_buf *buf)
{
xdr_reset_scratch_buffer(xdr);
xdr->buf = buf;
- xdr->page_ptr = pages;
+ xdr->page_ptr = buf->pages;
xdr->iov = NULL;
- xdr->p = page_address(*pages);
+ xdr->p = page_address(*xdr->page_ptr);
xdr->end = (void *)xdr->p + min_t(u32, buf->buflen, PAGE_SIZE);
- xdr->rqst = rqst;
+ xdr->rqst = NULL;
}
EXPORT_SYMBOL_GPL(xdr_init_encode_pages);
generated by cgit (git 2.34.1) at 2025-09-09 06:17:23 +0000