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-rw-r--r--net/sunrpc/auth.c16
-rw-r--r--net/sunrpc/auth_gss/auth_gss.c2
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_seal.c15
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_unseal.c4
-rw-r--r--net/sunrpc/auth_gss/gss_krb5_wrap.c17
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_mech.c6
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_seal.c5
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_unseal.c4
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c182
-rw-r--r--net/sunrpc/cache.c180
-rw-r--r--net/sunrpc/clnt.c53
-rw-r--r--net/sunrpc/pmap_clnt.c41
-rw-r--r--net/sunrpc/rpc_pipe.c40
-rw-r--r--net/sunrpc/sched.c35
-rw-r--r--net/sunrpc/stats.c119
-rw-r--r--net/sunrpc/sunrpc_syms.c6
-rw-r--r--net/sunrpc/svcauth.c122
-rw-r--r--net/sunrpc/svcauth_unix.c229
-rw-r--r--net/sunrpc/svcsock.c8
-rw-r--r--net/sunrpc/xprt.c29
-rw-r--r--net/sunrpc/xprtsock.c49
21 files changed, 807 insertions, 355 deletions
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 8d6f1a176b1..55163af3dca 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -64,14 +64,26 @@ rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
struct rpc_authops *ops;
u32 flavor = pseudoflavor_to_flavor(pseudoflavor);
- if (flavor >= RPC_AUTH_MAXFLAVOR || !(ops = auth_flavors[flavor]))
- return ERR_PTR(-EINVAL);
+ auth = ERR_PTR(-EINVAL);
+ if (flavor >= RPC_AUTH_MAXFLAVOR)
+ goto out;
+
+ /* FIXME - auth_flavors[] really needs an rw lock,
+ * and module refcounting. */
+#ifdef CONFIG_KMOD
+ if ((ops = auth_flavors[flavor]) == NULL)
+ request_module("rpc-auth-%u", flavor);
+#endif
+ if ((ops = auth_flavors[flavor]) == NULL)
+ goto out;
auth = ops->create(clnt, pseudoflavor);
if (IS_ERR(auth))
return auth;
if (clnt->cl_auth)
rpcauth_destroy(clnt->cl_auth);
clnt->cl_auth = auth;
+
+out:
return auth;
}
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index bb46efd92e5..900ef31f5a0 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -721,6 +721,8 @@ gss_destroy(struct rpc_auth *auth)
gss_auth = container_of(auth, struct gss_auth, rpc_auth);
rpc_unlink(gss_auth->path);
+ dput(gss_auth->dentry);
+ gss_auth->dentry = NULL;
gss_mech_put(gss_auth->mech);
rpcauth_free_credcache(auth);
diff --git a/net/sunrpc/auth_gss/gss_krb5_seal.c b/net/sunrpc/auth_gss/gss_krb5_seal.c
index d0dfdfd5e79..f43311221a7 100644
--- a/net/sunrpc/auth_gss/gss_krb5_seal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_seal.c
@@ -70,15 +70,19 @@
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
+spinlock_t krb5_seq_lock = SPIN_LOCK_UNLOCKED;
+
u32
gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
struct xdr_netobj *token)
{
struct krb5_ctx *ctx = gss_ctx->internal_ctx_id;
s32 checksum_type;
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
unsigned char *ptr, *krb5_hdr, *msg_start;
s32 now;
+ u32 seq_send;
dprintk("RPC: gss_krb5_seal\n");
@@ -133,16 +137,15 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
BUG();
}
- kfree(md5cksum.data);
+ spin_lock(&krb5_seq_lock);
+ seq_send = ctx->seq_send++;
+ spin_unlock(&krb5_seq_lock);
if ((krb5_make_seq_num(ctx->seq, ctx->initiate ? 0 : 0xff,
- ctx->seq_send, krb5_hdr + 16, krb5_hdr + 8)))
+ seq_send, krb5_hdr + 16, krb5_hdr + 8)))
goto out_err;
- ctx->seq_send++;
-
return ((ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
out_err:
- kfree(md5cksum.data);
return GSS_S_FAILURE;
}
diff --git a/net/sunrpc/auth_gss/gss_krb5_unseal.c b/net/sunrpc/auth_gss/gss_krb5_unseal.c
index db055fd7d77..0828cf64100 100644
--- a/net/sunrpc/auth_gss/gss_krb5_unseal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_unseal.c
@@ -79,7 +79,8 @@ gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
int signalg;
int sealalg;
s32 checksum_type;
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
s32 now;
int direction;
s32 seqnum;
@@ -176,6 +177,5 @@ gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
ret = GSS_S_COMPLETE;
out:
- kfree(md5cksum.data);
return ret;
}
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index af777cf9f25..89d1f3e1412 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -121,12 +121,14 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
{
struct krb5_ctx *kctx = ctx->internal_ctx_id;
s32 checksum_type;
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
int blocksize = 0, plainlen;
unsigned char *ptr, *krb5_hdr, *msg_start;
s32 now;
int headlen;
struct page **tmp_pages;
+ u32 seq_send;
dprintk("RPC: gss_wrap_kerberos\n");
@@ -205,23 +207,22 @@ gss_wrap_kerberos(struct gss_ctx *ctx, int offset,
BUG();
}
- kfree(md5cksum.data);
+ spin_lock(&krb5_seq_lock);
+ seq_send = kctx->seq_send++;
+ spin_unlock(&krb5_seq_lock);
/* XXX would probably be more efficient to compute checksum
* and encrypt at the same time: */
if ((krb5_make_seq_num(kctx->seq, kctx->initiate ? 0 : 0xff,
- kctx->seq_send, krb5_hdr + 16, krb5_hdr + 8)))
+ seq_send, krb5_hdr + 16, krb5_hdr + 8)))
goto out_err;
if (gss_encrypt_xdr_buf(kctx->enc, buf, offset + headlen - blocksize,
pages))
goto out_err;
- kctx->seq_send++;
-
return ((kctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
out_err:
- if (md5cksum.data) kfree(md5cksum.data);
return GSS_S_FAILURE;
}
@@ -232,7 +233,8 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
int signalg;
int sealalg;
s32 checksum_type;
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
s32 now;
int direction;
s32 seqnum;
@@ -358,6 +360,5 @@ gss_unwrap_kerberos(struct gss_ctx *ctx, int offset, struct xdr_buf *buf)
ret = GSS_S_COMPLETE;
out:
- if (md5cksum.data) kfree(md5cksum.data);
return ret;
}
diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c
index 58400807d4d..5bf11ccba7c 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_mech.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_mech.c
@@ -102,6 +102,12 @@ get_key(const void *p, const void *end, struct crypto_tfm **res, int *resalg)
alg_mode = CRYPTO_TFM_MODE_CBC;
setkey = 1;
break;
+ case NID_cast5_cbc:
+ /* XXXX here in name only, not used */
+ alg_name = "cast5";
+ alg_mode = CRYPTO_TFM_MODE_CBC;
+ setkey = 0; /* XXX will need to set to 1 */
+ break;
case NID_md5:
if (key.len == 0) {
dprintk("RPC: SPKM3 get_key: NID_md5 zero Key length\n");
diff --git a/net/sunrpc/auth_gss/gss_spkm3_seal.c b/net/sunrpc/auth_gss/gss_spkm3_seal.c
index 86fbf7c3e39..18c7862bc23 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_seal.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_seal.c
@@ -57,7 +57,8 @@ spkm3_make_token(struct spkm3_ctx *ctx,
{
s32 checksum_type;
char tokhdrbuf[25];
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
struct xdr_netobj mic_hdr = {.len = 0, .data = tokhdrbuf};
int tokenlen = 0;
unsigned char *ptr;
@@ -115,13 +116,11 @@ spkm3_make_token(struct spkm3_ctx *ctx,
dprintk("RPC: gss_spkm3_seal: SPKM_WRAP_TOK not supported\n");
goto out_err;
}
- kfree(md5cksum.data);
/* XXX need to implement sequence numbers, and ctx->expired */
return GSS_S_COMPLETE;
out_err:
- kfree(md5cksum.data);
token->data = NULL;
token->len = 0;
return GSS_S_FAILURE;
diff --git a/net/sunrpc/auth_gss/gss_spkm3_unseal.c b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
index 96851b0ba1b..8537f581ef9 100644
--- a/net/sunrpc/auth_gss/gss_spkm3_unseal.c
+++ b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
@@ -56,7 +56,8 @@ spkm3_read_token(struct spkm3_ctx *ctx,
{
s32 code;
struct xdr_netobj wire_cksum = {.len =0, .data = NULL};
- struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ char cksumdata[16];
+ struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
unsigned char *ptr = (unsigned char *)read_token->data;
unsigned char *cksum;
int bodysize, md5elen;
@@ -120,7 +121,6 @@ spkm3_read_token(struct spkm3_ctx *ctx,
/* XXX: need to add expiration and sequencing */
ret = GSS_S_COMPLETE;
out:
- kfree(md5cksum.data);
kfree(wire_cksum.data);
return ret;
}
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 23632d84d8d..4d7eb9e704d 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -78,7 +78,8 @@ struct rsi {
static struct cache_head *rsi_table[RSI_HASHMAX];
static struct cache_detail rsi_cache;
-static struct rsi *rsi_lookup(struct rsi *item, int set);
+static struct rsi *rsi_update(struct rsi *new, struct rsi *old);
+static struct rsi *rsi_lookup(struct rsi *item);
static void rsi_free(struct rsi *rsii)
{
@@ -88,13 +89,11 @@ static void rsi_free(struct rsi *rsii)
kfree(rsii->out_token.data);
}
-static void rsi_put(struct cache_head *item, struct cache_detail *cd)
+static void rsi_put(struct kref *ref)
{
- struct rsi *rsii = container_of(item, struct rsi, h);
- if (cache_put(item, cd)) {
- rsi_free(rsii);
- kfree(rsii);
- }
+ struct rsi *rsii = container_of(ref, struct rsi, h.ref);
+ rsi_free(rsii);
+ kfree(rsii);
}
static inline int rsi_hash(struct rsi *item)
@@ -103,8 +102,10 @@ static inline int rsi_hash(struct rsi *item)
^ hash_mem(item->in_token.data, item->in_token.len, RSI_HASHBITS);
}
-static inline int rsi_match(struct rsi *item, struct rsi *tmp)
+static int rsi_match(struct cache_head *a, struct cache_head *b)
{
+ struct rsi *item = container_of(a, struct rsi, h);
+ struct rsi *tmp = container_of(b, struct rsi, h);
return netobj_equal(&item->in_handle, &tmp->in_handle)
&& netobj_equal(&item->in_token, &tmp->in_token);
}
@@ -125,8 +126,11 @@ static inline int dup_netobj(struct xdr_netobj *dst, struct xdr_netobj *src)
return dup_to_netobj(dst, src->data, src->len);
}
-static inline void rsi_init(struct rsi *new, struct rsi *item)
+static void rsi_init(struct cache_head *cnew, struct cache_head *citem)
{
+ struct rsi *new = container_of(cnew, struct rsi, h);
+ struct rsi *item = container_of(citem, struct rsi, h);
+
new->out_handle.data = NULL;
new->out_handle.len = 0;
new->out_token.data = NULL;
@@ -141,8 +145,11 @@ static inline void rsi_init(struct rsi *new, struct rsi *item)
item->in_token.data = NULL;
}
-static inline void rsi_update(struct rsi *new, struct rsi *item)
+static void update_rsi(struct cache_head *cnew, struct cache_head *citem)
{
+ struct rsi *new = container_of(cnew, struct rsi, h);
+ struct rsi *item = container_of(citem, struct rsi, h);
+
BUG_ON(new->out_handle.data || new->out_token.data);
new->out_handle.len = item->out_handle.len;
item->out_handle.len = 0;
@@ -157,6 +164,15 @@ static inline void rsi_update(struct rsi *new, struct rsi *item)
new->minor_status = item->minor_status;
}
+static struct cache_head *rsi_alloc(void)
+{
+ struct rsi *rsii = kmalloc(sizeof(*rsii), GFP_KERNEL);
+ if (rsii)
+ return &rsii->h;
+ else
+ return NULL;
+}
+
static void rsi_request(struct cache_detail *cd,
struct cache_head *h,
char **bpp, int *blen)
@@ -198,6 +214,10 @@ static int rsi_parse(struct cache_detail *cd,
if (dup_to_netobj(&rsii.in_token, buf, len))
goto out;
+ rsip = rsi_lookup(&rsii);
+ if (!rsip)
+ goto out;
+
rsii.h.flags = 0;
/* expiry */
expiry = get_expiry(&mesg);
@@ -240,12 +260,14 @@ static int rsi_parse(struct cache_detail *cd,
goto out;
}
rsii.h.expiry_time = expiry;
- rsip = rsi_lookup(&rsii, 1);
+ rsip = rsi_update(&rsii, rsip);
status = 0;
out:
rsi_free(&rsii);
if (rsip)
- rsi_put(&rsip->h, &rsi_cache);
+ cache_put(&rsip->h, &rsi_cache);
+ else
+ status = -ENOMEM;
return status;
}
@@ -257,9 +279,37 @@ static struct cache_detail rsi_cache = {
.cache_put = rsi_put,
.cache_request = rsi_request,
.cache_parse = rsi_parse,
+ .match = rsi_match,
+ .init = rsi_init,
+ .update = update_rsi,
+ .alloc = rsi_alloc,
};
-static DefineSimpleCacheLookup(rsi, 0)
+static struct rsi *rsi_lookup(struct rsi *item)
+{
+ struct cache_head *ch;
+ int hash = rsi_hash(item);
+
+ ch = sunrpc_cache_lookup(&rsi_cache, &item->h, hash);
+ if (ch)
+ return container_of(ch, struct rsi, h);
+ else
+ return NULL;
+}
+
+static struct rsi *rsi_update(struct rsi *new, struct rsi *old)
+{
+ struct cache_head *ch;
+ int hash = rsi_hash(new);
+
+ ch = sunrpc_cache_update(&rsi_cache, &new->h,
+ &old->h, hash);
+ if (ch)
+ return container_of(ch, struct rsi, h);
+ else
+ return NULL;
+}
+
/*
* The rpcsec_context cache is used to store a context that is
@@ -293,7 +343,8 @@ struct rsc {
static struct cache_head *rsc_table[RSC_HASHMAX];
static struct cache_detail rsc_cache;
-static struct rsc *rsc_lookup(struct rsc *item, int set);
+static struct rsc *rsc_update(struct rsc *new, struct rsc *old);
+static struct rsc *rsc_lookup(struct rsc *item);
static void rsc_free(struct rsc *rsci)
{
@@ -304,14 +355,12 @@ static void rsc_free(struct rsc *rsci)
put_group_info(rsci->cred.cr_group_info);
}
-static void rsc_put(struct cache_head *item, struct cache_detail *cd)
+static void rsc_put(struct kref *ref)
{
- struct rsc *rsci = container_of(item, struct rsc, h);
+ struct rsc *rsci = container_of(ref, struct rsc, h.ref);
- if (cache_put(item, cd)) {
- rsc_free(rsci);
- kfree(rsci);
- }
+ rsc_free(rsci);
+ kfree(rsci);
}
static inline int
@@ -320,15 +369,21 @@ rsc_hash(struct rsc *rsci)
return hash_mem(rsci->handle.data, rsci->handle.len, RSC_HASHBITS);
}
-static inline int
-rsc_match(struct rsc *new, struct rsc *tmp)
+static int
+rsc_match(struct cache_head *a, struct cache_head *b)
{
+ struct rsc *new = container_of(a, struct rsc, h);
+ struct rsc *tmp = container_of(b, struct rsc, h);
+
return netobj_equal(&new->handle, &tmp->handle);
}
-static inline void
-rsc_init(struct rsc *new, struct rsc *tmp)
+static void
+rsc_init(struct cache_head *cnew, struct cache_head *ctmp)
{
+ struct rsc *new = container_of(cnew, struct rsc, h);
+ struct rsc *tmp = container_of(ctmp, struct rsc, h);
+
new->handle.len = tmp->handle.len;
tmp->handle.len = 0;
new->handle.data = tmp->handle.data;
@@ -337,9 +392,12 @@ rsc_init(struct rsc *new, struct rsc *tmp)
new->cred.cr_group_info = NULL;
}
-static inline void
-rsc_update(struct rsc *new, struct rsc *tmp)
+static void
+update_rsc(struct cache_head *cnew, struct cache_head *ctmp)
{
+ struct rsc *new = container_of(cnew, struct rsc, h);
+ struct rsc *tmp = container_of(ctmp, struct rsc, h);
+
new->mechctx = tmp->mechctx;
tmp->mechctx = NULL;
memset(&new->seqdata, 0, sizeof(new->seqdata));
@@ -348,6 +406,16 @@ rsc_update(struct rsc *new, struct rsc *tmp)
tmp->cred.cr_group_info = NULL;
}
+static struct cache_head *
+rsc_alloc(void)
+{
+ struct rsc *rsci = kmalloc(sizeof(*rsci), GFP_KERNEL);
+ if (rsci)
+ return &rsci->h;
+ else
+ return NULL;
+}
+
static int rsc_parse(struct cache_detail *cd,
char *mesg, int mlen)
{
@@ -373,6 +441,10 @@ static int rsc_parse(struct cache_detail *cd,
if (expiry == 0)
goto out;
+ rscp = rsc_lookup(&rsci);
+ if (!rscp)
+ goto out;
+
/* uid, or NEGATIVE */
rv = get_int(&mesg, &rsci.cred.cr_uid);
if (rv == -EINVAL)
@@ -428,12 +500,14 @@ static int rsc_parse(struct cache_detail *cd,
gss_mech_put(gm);
}
rsci.h.expiry_time = expiry;
- rscp = rsc_lookup(&rsci, 1);
+ rscp = rsc_update(&rsci, rscp);
status = 0;
out:
rsc_free(&rsci);
if (rscp)
- rsc_put(&rscp->h, &rsc_cache);
+ cache_put(&rscp->h, &rsc_cache);
+ else
+ status = -ENOMEM;
return status;
}
@@ -444,9 +518,37 @@ static struct cache_detail rsc_cache = {
.name = "auth.rpcsec.context",
.cache_put = rsc_put,
.cache_parse = rsc_parse,
+ .match = rsc_match,
+ .init = rsc_init,
+ .update = update_rsc,
+ .alloc = rsc_alloc,
};
-static DefineSimpleCacheLookup(rsc, 0);
+static struct rsc *rsc_lookup(struct rsc *item)
+{
+ struct cache_head *ch;
+ int hash = rsc_hash(item);
+
+ ch = sunrpc_cache_lookup(&rsc_cache, &item->h, hash);
+ if (ch)
+ return container_of(ch, struct rsc, h);
+ else
+ return NULL;
+}
+
+static struct rsc *rsc_update(struct rsc *new, struct rsc *old)
+{
+ struct cache_head *ch;
+ int hash = rsc_hash(new);
+
+ ch = sunrpc_cache_update(&rsc_cache, &new->h,
+ &old->h, hash);
+ if (ch)
+ return container_of(ch, struct rsc, h);
+ else
+ return NULL;
+}
+
static struct rsc *
gss_svc_searchbyctx(struct xdr_netobj *handle)
@@ -457,7 +559,7 @@ gss_svc_searchbyctx(struct xdr_netobj *handle)
memset(&rsci, 0, sizeof(rsci));
if (dup_to_netobj(&rsci.handle, handle->data, handle->len))
return NULL;
- found = rsc_lookup(&rsci, 0);
+ found = rsc_lookup(&rsci);
rsc_free(&rsci);
if (!found)
return NULL;
@@ -645,6 +747,8 @@ find_gss_auth_domain(struct gss_ctx *ctx, u32 svc)
return auth_domain_find(name);
}
+static struct auth_ops svcauthops_gss;
+
int
svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name)
{
@@ -655,20 +759,18 @@ svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name)
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (!new)
goto out;
- cache_init(&new->h.h);
+ kref_init(&new->h.ref);
new->h.name = kmalloc(strlen(name) + 1, GFP_KERNEL);
if (!new->h.name)
goto out_free_dom;
strcpy(new->h.name, name);
- new->h.flavour = RPC_AUTH_GSS;
+ new->h.flavour = &svcauthops_gss;
new->pseudoflavor = pseudoflavor;
- new->h.h.expiry_time = NEVER;
- test = auth_domain_lookup(&new->h, 1);
- if (test == &new->h) {
- BUG_ON(atomic_dec_and_test(&new->h.h.refcnt));
- } else { /* XXX Duplicate registration? */
+ test = auth_domain_lookup(name, &new->h);
+ if (test != &new->h) { /* XXX Duplicate registration? */
auth_domain_put(&new->h);
+ /* dangling ref-count... */
goto out;
}
return 0;
@@ -895,7 +997,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, u32 *authp)
goto drop;
}
- rsip = rsi_lookup(&rsikey, 0);
+ rsip = rsi_lookup(&rsikey);
rsi_free(&rsikey);
if (!rsip) {
goto drop;
@@ -970,7 +1072,7 @@ drop:
ret = SVC_DROP;
out:
if (rsci)
- rsc_put(&rsci->h, &rsc_cache);
+ cache_put(&rsci->h, &rsc_cache);
return ret;
}
@@ -1062,7 +1164,7 @@ out_err:
put_group_info(rqstp->rq_cred.cr_group_info);
rqstp->rq_cred.cr_group_info = NULL;
if (gsd->rsci)
- rsc_put(&gsd->rsci->h, &rsc_cache);
+ cache_put(&gsd->rsci->h, &rsc_cache);
gsd->rsci = NULL;
return stat;
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index dcaa0c4453f..3ac4193a78e 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -26,6 +26,7 @@
#include <linux/proc_fs.h>
#include <linux/net.h>
#include <linux/workqueue.h>
+#include <linux/mutex.h>
#include <asm/ioctls.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/cache.h>
@@ -36,16 +37,138 @@
static void cache_defer_req(struct cache_req *req, struct cache_head *item);
static void cache_revisit_request(struct cache_head *item);
-void cache_init(struct cache_head *h)
+static void cache_init(struct cache_head *h)
{
time_t now = get_seconds();
h->next = NULL;
h->flags = 0;
- atomic_set(&h->refcnt, 1);
+ kref_init(&h->ref);
h->expiry_time = now + CACHE_NEW_EXPIRY;
h->last_refresh = now;
}
+struct cache_head *sunrpc_cache_lookup(struct cache_detail *detail,
+ struct cache_head *key, int hash)
+{
+ struct cache_head **head, **hp;
+ struct cache_head *new = NULL;
+
+ head = &detail->hash_table[hash];
+
+ read_lock(&detail->hash_lock);
+
+ for (hp=head; *hp != NULL ; hp = &(*hp)->next) {
+ struct cache_head *tmp = *hp;
+ if (detail->match(tmp, key)) {
+ cache_get(tmp);
+ read_unlock(&detail->hash_lock);
+ return tmp;
+ }
+ }
+ read_unlock(&detail->hash_lock);
+ /* Didn't find anything, insert an empty entry */
+
+ new = detail->alloc();
+ if (!new)
+ return NULL;
+ cache_init(new);
+
+ write_lock(&detail->hash_lock);
+
+ /* check if entry appeared while we slept */
+ for (hp=head; *hp != NULL ; hp = &(*hp)->next) {
+ struct cache_head *tmp = *hp;
+ if (detail->match(tmp, key)) {
+ cache_get(tmp);
+ write_unlock(&detail->hash_lock);
+ cache_put(new, detail);
+ return tmp;
+ }
+ }
+ detail->init(new, key);
+ new->next = *head;
+ *head = new;
+ detail->entries++;
+ cache_get(new);
+ write_unlock(&detail->hash_lock);
+
+ return new;
+}
+EXPORT_SYMBOL(sunrpc_cache_lookup);
+
+
+static void queue_loose(struct cache_detail *detail, struct cache_head *ch);
+
+static int cache_fresh_locked(struct cache_head *head, time_t expiry)
+{
+ head->expiry_time = expiry;
+ head->last_refresh = get_seconds();
+ return !test_and_set_bit(CACHE_VALID, &head->flags);
+}
+
+static void cache_fresh_unlocked(struct cache_head *head,
+ struct cache_detail *detail, int new)
+{
+ if (new)
+ cache_revisit_request(head);
+ if (test_and_clear_bit(CACHE_PENDING, &head->flags)) {
+ cache_revisit_request(head);
+ queue_loose(detail, head);
+ }
+}
+
+struct cache_head *sunrpc_cache_update(struct cache_detail *detail,
+ struct cache_head *new, struct cache_head *old, int hash)
+{
+ /* The 'old' entry is to be replaced by 'new'.
+ * If 'old' is not VALID, we update it directly,
+ * otherwise we need to replace it
+ */
+ struct cache_head **head;
+ struct cache_head *tmp;
+ int is_new;
+
+ if (!test_bit(CACHE_VALID, &old->flags)) {
+ write_lock(&detail->hash_lock);
+ if (!test_bit(CACHE_VALID, &old->flags)) {
+ if (test_bit(CACHE_NEGATIVE, &new->flags))
+ set_bit(CACHE_NEGATIVE, &old->flags);
+ else
+ detail->update(old, new);
+ is_new = cache_fresh_locked(old, new->expiry_time);
+ write_unlock(&detail->hash_lock);
+ cache_fresh_unlocked(old, detail, is_new);
+ return old;
+ }
+ write_unlock(&detail->hash_lock);
+ }
+ /* We need to insert a new entry */
+ tmp = detail->alloc();
+ if (!tmp) {
+ cache_put(old, detail);
+ return NULL;
+ }
+ cache_init(tmp);
+ detail->init(tmp, old);
+ head = &detail->hash_table[hash];
+
+ write_lock(&detail->hash_lock);
+ if (test_bit(CACHE_NEGATIVE, &new->flags))
+ set_bit(CACHE_NEGATIVE, &tmp->flags);
+ else
+ detail->update(tmp, new);
+ tmp->next = *head;
+ *head = tmp;
+ cache_get(tmp);
+ is_new = cache_fresh_locked(tmp, new->expiry_time);
+ cache_fresh_locked(old, 0);
+ write_unlock(&detail->hash_lock);
+ cache_fresh_unlocked(tmp, detail, is_new);
+ cache_fresh_unlocked(old, detail, 0);
+ cache_put(old, detail);
+ return tmp;
+}
+EXPORT_SYMBOL(sunrpc_cache_update);
static int cache_make_upcall(struct cache_detail *detail, struct cache_head *h);
/*
@@ -93,7 +216,8 @@ int cache_check(struct cache_detail *detail,
clear_bit(CACHE_PENDING, &h->flags);
if (rv == -EAGAIN) {
set_bit(CACHE_NEGATIVE, &h->flags);
- cache_fresh(detail, h, get_seconds()+CACHE_NEW_EXPIRY);
+ cache_fresh_unlocked(h, detail,
+ cache_fresh_locked(h, get_seconds()+CACHE_NEW_EXPIRY));
rv = -ENOENT;
}
break;
@@ -109,25 +233,11 @@ int cache_check(struct cache_detail *detail,
if (rv == -EAGAIN)
cache_defer_req(rqstp, h);
- if (rv && h)
- detail->cache_put(h, detail);
+ if (rv)
+ cache_put(h, detail);
return rv;
}
-static void queue_loose(struct cache_detail *detail, struct cache_head *ch);
-
-void cache_fresh(struct cache_detail *detail,
- struct cache_head *head, time_t expiry)
-{
-
- head->expiry_time = expiry;
- head->last_refresh = get_seconds();
- if (!test_and_set_bit(CACHE_VALID, &head->flags))
- cache_revisit_request(head);
- if (test_and_clear_bit(CACHE_PENDING, &head->flags))
- queue_loose(detail, head);
-}
-
/*
* caches need to be periodically cleaned.
* For this we maintain a list of cache_detail and
@@ -321,7 +431,7 @@ static int cache_clean(void)
if (test_and_clear_bit(CACHE_PENDING, &ch->flags))
queue_loose(current_detail, ch);
- if (atomic_read(&ch->refcnt) == 1)
+ if (atomic_read(&ch->ref.refcount) == 1)
break;
}
if (ch) {
@@ -336,7 +446,7 @@ static int cache_clean(void)
current_index ++;
spin_unlock(&cache_list_lock);
if (ch)
- d->cache_put(ch, d);
+ cache_put(ch, d);
} else
spin_unlock(&cache_list_lock);
@@ -452,7 +562,7 @@ static void cache_defer_req(struct cache_req *req, struct cache_head *item)
/* there was one too many */
dreq->revisit(dreq, 1);
}
- if (test_bit(CACHE_VALID, &item->flags)) {
+ if (!test_bit(CACHE_PENDING, &item->flags)) {
/* must have just been validated... */
cache_revisit_request(item);
}
@@ -532,7 +642,7 @@ void cache_clean_deferred(void *owner)
*/
static DEFINE_SPINLOCK(queue_lock);
-static DECLARE_MUTEX(queue_io_sem);
+static DEFINE_MUTEX(queue_io_mutex);
struct cache_queue {
struct list_head list;
@@ -561,7 +671,7 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
if (count == 0)
return 0;
- down(&queue_io_sem); /* protect against multiple concurrent
+ mutex_lock(&queue_io_mutex); /* protect against multiple concurrent
* readers on this file */
again:
spin_lock(&queue_lock);
@@ -574,7 +684,7 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
}
if (rp->q.list.next == &cd->queue) {
spin_unlock(&queue_lock);
- up(&queue_io_sem);
+ mutex_unlock(&queue_io_mutex);
BUG_ON(rp->offset);
return 0;
}
@@ -613,7 +723,7 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
!test_bit(CACHE_PENDING, &rq->item->flags)) {
list_del(&rq->q.list);
spin_unlock(&queue_lock);
- cd->cache_put(rq->item, cd);
+ cache_put(rq->item, cd);
kfree(rq->buf);
kfree(rq);
} else
@@ -621,11 +731,11 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
}
if (err == -EAGAIN)
goto again;
- up(&queue_io_sem);
+ mutex_unlock(&queue_io_mutex);
return err ? err : count;
}
-static char write_buf[8192]; /* protected by queue_io_sem */
+static char write_buf[8192]; /* protected by queue_io_mutex */
static ssize_t
cache_write(struct file *filp, const char __user *buf, size_t count,
@@ -639,10 +749,10 @@ cache_write(struct file *filp, const char __user *buf, size_t count,
if (count >= sizeof(write_buf))
return -EINVAL;
- down(&queue_io_sem);
+ mutex_lock(&queue_io_mutex);
if (copy_from_user(write_buf, buf, count)) {
- up(&queue_io_sem);
+ mutex_unlock(&queue_io_mutex);
return -EFAULT;
}
write_buf[count] = '\0';
@@ -651,7 +761,7 @@ cache_write(struct file *filp, const char __user *buf, size_t count,
else
err = -EINVAL;
- up(&queue_io_sem);
+ mutex_unlock(&queue_io_mutex);
return err ? err : count;
}
@@ -793,10 +903,10 @@ static void queue_loose(struct cache_detail *detail, struct cache_head *ch)
if (cr->item != ch)
continue;
if (cr->readers != 0)
- break;
+ continue;
list_del(&cr->q.list);
spin_unlock(&queue_lock);
- detail->cache_put(cr->item, detail);
+ cache_put(cr->item, detail);
kfree(cr->buf);
kfree(cr);
return;
@@ -1081,8 +1191,8 @@ static int c_show(struct seq_file *m, void *p)
return cd->cache_show(m, cd, NULL);
ifdebug(CACHE)
- seq_printf(m, "# expiry=%ld refcnt=%d\n",
- cp->expiry_time, atomic_read(&cp->refcnt));
+ seq_printf(m, "# expiry=%ld refcnt=%d flags=%lx\n",
+ cp->expiry_time, atomic_read(&cp->ref.refcount), cp->flags);
cache_get(cp);
if (cache_check(cd, cp, NULL))
/* cache_check does a cache_put on failure */
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index d7847978204..aa8965e9d30 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -28,12 +28,11 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/utsname.h>
+#include <linux/workqueue.h>
#include <linux/sunrpc/clnt.h>
-#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
-
-#include <linux/nfs.h>
+#include <linux/sunrpc/metrics.h>
#define RPC_SLACK_SPACE (1024) /* total overkill */
@@ -71,8 +70,15 @@ rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name)
static uint32_t clntid;
int error;
+ clnt->cl_vfsmnt = ERR_PTR(-ENOENT);
+ clnt->cl_dentry = ERR_PTR(-ENOENT);
if (dir_name == NULL)
return 0;
+
+ clnt->cl_vfsmnt = rpc_get_mount();
+ if (IS_ERR(clnt->cl_vfsmnt))
+ return PTR_ERR(clnt->cl_vfsmnt);
+
for (;;) {
snprintf(clnt->cl_pathname, sizeof(clnt->cl_pathname),
"%s/clnt%x", dir_name,
@@ -85,6 +91,7 @@ rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name)
if (error != -EEXIST) {
printk(KERN_INFO "RPC: Couldn't create pipefs entry %s, error %d\n",
clnt->cl_pathname, error);
+ rpc_put_mount();
return error;
}
}
@@ -147,6 +154,7 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname,
clnt->cl_vers = version->number;
clnt->cl_prot = xprt->prot;
clnt->cl_stats = program->stats;
+ clnt->cl_metrics = rpc_alloc_iostats(clnt);
rpc_init_wait_queue(&clnt->cl_pmap_default.pm_bindwait, "bindwait");
if (!clnt->cl_port)
@@ -175,7 +183,11 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname,
return clnt;
out_no_auth:
- rpc_rmdir(clnt->cl_pathname);
+ if (!IS_ERR(clnt->cl_dentry)) {
+ rpc_rmdir(clnt->cl_pathname);
+ dput(clnt->cl_dentry);
+ rpc_put_mount();
+ }
out_no_path:
if (clnt->cl_server != clnt->cl_inline_name)
kfree(clnt->cl_server);
@@ -240,11 +252,15 @@ rpc_clone_client(struct rpc_clnt *clnt)
new->cl_autobind = 0;
new->cl_oneshot = 0;
new->cl_dead = 0;
+ if (!IS_ERR(new->cl_dentry)) {
+ dget(new->cl_dentry);
+ rpc_get_mount();
+ }
rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
if (new->cl_auth)
atomic_inc(&new->cl_auth->au_count);
new->cl_pmap = &new->cl_pmap_default;
- rpc_init_wait_queue(&new->cl_pmap_default.pm_bindwait, "bindwait");
+ new->cl_metrics = rpc_alloc_iostats(clnt);
return new;
out_no_clnt:
printk(KERN_INFO "RPC: out of memory in %s\n", __FUNCTION__);
@@ -314,6 +330,12 @@ rpc_destroy_client(struct rpc_clnt *clnt)
if (clnt->cl_server != clnt->cl_inline_name)
kfree(clnt->cl_server);
out_free:
+ rpc_free_iostats(clnt->cl_metrics);
+ clnt->cl_metrics = NULL;
+ if (!IS_ERR(clnt->cl_dentry)) {
+ dput(clnt->cl_dentry);
+ rpc_put_mount();
+ }
kfree(clnt);
return 0;
}
@@ -473,15 +495,16 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
int status;
/* If this client is slain all further I/O fails */
+ status = -EIO;
if (clnt->cl_dead)
- return -EIO;
+ goto out_release;
flags |= RPC_TASK_ASYNC;
/* Create/initialize a new RPC task */
status = -ENOMEM;
if (!(task = rpc_new_task(clnt, flags, tk_ops, data)))
- goto out;
+ goto out_release;
/* Mask signals on GSS_AUTH upcalls */
rpc_task_sigmask(task, &oldset);
@@ -496,7 +519,10 @@ rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, int flags,
rpc_release_task(task);
rpc_restore_sigmask(&oldset);
-out:
+ return status;
+out_release:
+ if (tk_ops->rpc_release != NULL)
+ tk_ops->rpc_release(data);
return status;
}
@@ -993,6 +1019,8 @@ call_timeout(struct rpc_task *task)
}
dprintk("RPC: %4d call_timeout (major)\n", task->tk_pid);
+ task->tk_timeouts++;
+
if (RPC_IS_SOFT(task)) {
printk(KERN_NOTICE "%s: server %s not responding, timed out\n",
clnt->cl_protname, clnt->cl_server);
@@ -1045,6 +1073,11 @@ call_decode(struct rpc_task *task)
return;
}
+ /*
+ * Ensure that we see all writes made by xprt_complete_rqst()
+ * before it changed req->rq_received.
+ */
+ smp_rmb();
req->rq_rcv_buf.len = req->rq_private_buf.len;
/* Check that the softirq receive buffer is valid */
@@ -1194,8 +1227,8 @@ call_verify(struct rpc_task *task)
task->tk_action = call_bind;
goto out_retry;
case RPC_AUTH_TOOWEAK:
- printk(KERN_NOTICE "call_verify: server requires stronger "
- "authentication.\n");
+ printk(KERN_NOTICE "call_verify: server %s requires stronger "
+ "authentication.\n", task->tk_client->cl_server);
break;
default:
printk(KERN_WARNING "call_verify: unknown auth error: %x\n", n);
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index 8139ce68e91..d25b054ec92 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -82,6 +82,7 @@ rpc_getport(struct rpc_task *task, struct rpc_clnt *clnt)
rpc_call_setup(child, &msg, 0);
/* ... and run the child task */
+ task->tk_xprt->stat.bind_count++;
rpc_run_child(task, child, pmap_getport_done);
return;
@@ -103,6 +104,11 @@ rpc_getport_external(struct sockaddr_in *sin, __u32 prog, __u32 vers, int prot)
.pm_prot = prot,
.pm_port = 0
};
+ struct rpc_message msg = {
+ .rpc_proc = &pmap_procedures[PMAP_GETPORT],
+ .rpc_argp = &map,
+ .rpc_resp = &map.pm_port,
+ };
struct rpc_clnt *pmap_clnt;
char hostname[32];
int status;
@@ -116,7 +122,7 @@ rpc_getport_external(struct sockaddr_in *sin, __u32 prog, __u32 vers, int prot)
return PTR_ERR(pmap_clnt);
/* Setup the call info struct */
- status = rpc_call(pmap_clnt, PMAP_GETPORT, &map, &map.pm_port, 0);
+ status = rpc_call_sync(pmap_clnt, &msg, 0);
if (status >= 0) {
if (map.pm_port != 0)
@@ -161,16 +167,27 @@ pmap_getport_done(struct rpc_task *task)
int
rpc_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
{
- struct sockaddr_in sin;
- struct rpc_portmap map;
+ struct sockaddr_in sin = {
+ .sin_family = AF_INET,
+ .sin_addr.s_addr = htonl(INADDR_LOOPBACK),
+ };
+ struct rpc_portmap map = {
+ .pm_prog = prog,
+ .pm_vers = vers,
+ .pm_prot = prot,
+ .pm_port = port,
+ };
+ struct rpc_message msg = {
+ .rpc_proc = &pmap_procedures[port ? PMAP_SET : PMAP_UNSET],
+ .rpc_argp = &map,
+ .rpc_resp = okay,
+ };
struct rpc_clnt *pmap_clnt;
int error = 0;
dprintk("RPC: registering (%d, %d, %d, %d) with portmapper.\n",
prog, vers, prot, port);
- sin.sin_family = AF_INET;
- sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
pmap_clnt = pmap_create("localhost", &sin, IPPROTO_UDP, 1);
if (IS_ERR(pmap_clnt)) {
error = PTR_ERR(pmap_clnt);
@@ -178,13 +195,7 @@ rpc_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
return error;
}
- map.pm_prog = prog;
- map.pm_vers = vers;
- map.pm_prot = prot;
- map.pm_port = port;
-
- error = rpc_call(pmap_clnt, port? PMAP_SET : PMAP_UNSET,
- &map, okay, 0);
+ error = rpc_call_sync(pmap_clnt, &msg, 0);
if (error < 0) {
printk(KERN_WARNING
@@ -260,6 +271,8 @@ static struct rpc_procinfo pmap_procedures[] = {
.p_decode = (kxdrproc_t) xdr_decode_bool,
.p_bufsiz = 4,
.p_count = 1,
+ .p_statidx = PMAP_SET,
+ .p_name = "SET",
},
[PMAP_UNSET] = {
.p_proc = PMAP_UNSET,
@@ -267,6 +280,8 @@ static struct rpc_procinfo pmap_procedures[] = {
.p_decode = (kxdrproc_t) xdr_decode_bool,
.p_bufsiz = 4,
.p_count = 1,
+ .p_statidx = PMAP_UNSET,
+ .p_name = "UNSET",
},
[PMAP_GETPORT] = {
.p_proc = PMAP_GETPORT,
@@ -274,6 +289,8 @@ static struct rpc_procinfo pmap_procedures[] = {
.p_decode = (kxdrproc_t) xdr_decode_port,
.p_bufsiz = 4,
.p_count = 1,
+ .p_statidx = PMAP_GETPORT,
+ .p_name = "GETPORT",
},
};
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index a5c0c7b6e15..cc673dd8433 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -91,7 +91,8 @@ rpc_queue_upcall(struct inode *inode, struct rpc_pipe_msg *msg)
res = 0;
} else if (rpci->flags & RPC_PIPE_WAIT_FOR_OPEN) {
if (list_empty(&rpci->pipe))
- schedule_delayed_work(&rpci->queue_timeout,
+ queue_delayed_work(rpciod_workqueue,
+ &rpci->queue_timeout,
RPC_UPCALL_TIMEOUT);
list_add_tail(&msg->list, &rpci->pipe);
rpci->pipelen += msg->len;
@@ -132,7 +133,7 @@ rpc_close_pipes(struct inode *inode)
if (ops->release_pipe)
ops->release_pipe(inode);
cancel_delayed_work(&rpci->queue_timeout);
- flush_scheduled_work();
+ flush_workqueue(rpciod_workqueue);
}
rpc_inode_setowner(inode, NULL);
mutex_unlock(&inode->i_mutex);
@@ -394,7 +395,7 @@ enum {
*/
struct rpc_filelist {
char *name;
- struct file_operations *i_fop;
+ const struct file_operations *i_fop;
int mode;
};
@@ -434,14 +435,17 @@ static struct rpc_filelist authfiles[] = {
},
};
-static int
-rpc_get_mount(void)
+struct vfsmount *rpc_get_mount(void)
{
- return simple_pin_fs("rpc_pipefs", &rpc_mount, &rpc_mount_count);
+ int err;
+
+ err = simple_pin_fs("rpc_pipefs", &rpc_mount, &rpc_mount_count);
+ if (err != 0)
+ return ERR_PTR(err);
+ return rpc_mount;
}
-static void
-rpc_put_mount(void)
+void rpc_put_mount(void)
{
simple_release_fs(&rpc_mount, &rpc_mount_count);
}
@@ -451,12 +455,13 @@ rpc_lookup_parent(char *path, struct nameidata *nd)
{
if (path[0] == '\0')
return -ENOENT;
- if (rpc_get_mount()) {
+ nd->mnt = rpc_get_mount();
+ if (IS_ERR(nd->mnt)) {
printk(KERN_WARNING "%s: %s failed to mount "
"pseudofilesystem \n", __FILE__, __FUNCTION__);
- return -ENODEV;
+ return PTR_ERR(nd->mnt);
}
- nd->mnt = mntget(rpc_mount);
+ mntget(nd->mnt);
nd->dentry = dget(rpc_mount->mnt_root);
nd->last_type = LAST_ROOT;
nd->flags = LOOKUP_PARENT;
@@ -593,7 +598,6 @@ __rpc_mkdir(struct inode *dir, struct dentry *dentry)
d_instantiate(dentry, inode);
dir->i_nlink++;
inode_dir_notify(dir, DN_CREATE);
- rpc_get_mount();
return 0;
out_err:
printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %s\n",
@@ -614,7 +618,6 @@ __rpc_rmdir(struct inode *dir, struct dentry *dentry)
if (!error) {
inode_dir_notify(dir, DN_DELETE);
d_drop(dentry);
- rpc_put_mount();
}
return 0;
}
@@ -668,7 +671,7 @@ rpc_mkdir(char *path, struct rpc_clnt *rpc_client)
out:
mutex_unlock(&dir->i_mutex);
rpc_release_path(&nd);
- return dentry;
+ return dget(dentry);
err_depopulate:
rpc_depopulate(dentry);
__rpc_rmdir(dir, dentry);
@@ -732,7 +735,7 @@ rpc_mkpipe(char *path, void *private, struct rpc_pipe_ops *ops, int flags)
out:
mutex_unlock(&dir->i_mutex);
rpc_release_path(&nd);
- return dentry;
+ return dget(dentry);
err_dput:
dput(dentry);
dentry = ERR_PTR(-ENOMEM);
@@ -849,9 +852,10 @@ init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
int register_rpc_pipefs(void)
{
rpc_inode_cachep = kmem_cache_create("rpc_inode_cache",
- sizeof(struct rpc_inode),
- 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
- init_once, NULL);
+ sizeof(struct rpc_inode),
+ 0, (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
+ init_once, NULL);
if (!rpc_inode_cachep)
return -ENOMEM;
register_filesystem(&rpc_pipe_fs_type);
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index e838d042f7f..5c3eee76850 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -18,6 +18,7 @@
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/xprt.h>
@@ -62,9 +63,9 @@ static LIST_HEAD(all_tasks);
/*
* rpciod-related stuff
*/
-static DECLARE_MUTEX(rpciod_sema);
+static DEFINE_MUTEX(rpciod_mutex);
static unsigned int rpciod_users;
-static struct workqueue_struct *rpciod_workqueue;
+struct workqueue_struct *rpciod_workqueue;
/*
* Spinlock for other critical sections of code.
@@ -181,6 +182,7 @@ static void __rpc_add_wait_queue(struct rpc_wait_queue *queue, struct rpc_task *
else
list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]);
task->u.tk_wait.rpc_waitq = queue;
+ queue->qlen++;
rpc_set_queued(task);
dprintk("RPC: %4d added to queue %p \"%s\"\n",
@@ -215,6 +217,7 @@ static void __rpc_remove_wait_queue(struct rpc_task *task)
__rpc_remove_wait_queue_priority(task);
else
list_del(&task->u.tk_wait.list);
+ queue->qlen--;
dprintk("RPC: %4d removed from queue %p \"%s\"\n",
task->tk_pid, queue, rpc_qname(queue));
}
@@ -815,6 +818,9 @@ void rpc_init_task(struct rpc_task *task, struct rpc_clnt *clnt, int flags, cons
BUG_ON(task->tk_ops == NULL);
+ /* starting timestamp */
+ task->tk_start = jiffies;
+
dprintk("RPC: %4d new task procpid %d\n", task->tk_pid,
current->pid);
}
@@ -916,8 +922,11 @@ struct rpc_task *rpc_run_task(struct rpc_clnt *clnt, int flags,
{
struct rpc_task *task;
task = rpc_new_task(clnt, flags, ops, data);
- if (task == NULL)
+ if (task == NULL) {
+ if (ops->rpc_release != NULL)
+ ops->rpc_release(data);
return ERR_PTR(-ENOMEM);
+ }
atomic_inc(&task->tk_count);
rpc_execute(task);
return task;
@@ -1047,7 +1056,7 @@ rpciod_up(void)
struct workqueue_struct *wq;
int error = 0;
- down(&rpciod_sema);
+ mutex_lock(&rpciod_mutex);
dprintk("rpciod_up: users %d\n", rpciod_users);
rpciod_users++;
if (rpciod_workqueue)
@@ -1070,14 +1079,14 @@ rpciod_up(void)
rpciod_workqueue = wq;
error = 0;
out:
- up(&rpciod_sema);
+ mutex_unlock(&rpciod_mutex);
return error;
}
void
rpciod_down(void)
{
- down(&rpciod_sema);
+ mutex_lock(&rpciod_mutex);
dprintk("rpciod_down sema %d\n", rpciod_users);
if (rpciod_users) {
if (--rpciod_users)
@@ -1094,7 +1103,7 @@ rpciod_down(void)
destroy_workqueue(rpciod_workqueue);
rpciod_workqueue = NULL;
out:
- up(&rpciod_sema);
+ mutex_unlock(&rpciod_mutex);
}
#ifdef RPC_DEBUG
@@ -1158,16 +1167,12 @@ rpc_init_mempool(void)
NULL, NULL);
if (!rpc_buffer_slabp)
goto err_nomem;
- rpc_task_mempool = mempool_create(RPC_TASK_POOLSIZE,
- mempool_alloc_slab,
- mempool_free_slab,
- rpc_task_slabp);
+ rpc_task_mempool = mempool_create_slab_pool(RPC_TASK_POOLSIZE,
+ rpc_task_slabp);
if (!rpc_task_mempool)
goto err_nomem;
- rpc_buffer_mempool = mempool_create(RPC_BUFFER_POOLSIZE,
- mempool_alloc_slab,
- mempool_free_slab,
- rpc_buffer_slabp);
+ rpc_buffer_mempool = mempool_create_slab_pool(RPC_BUFFER_POOLSIZE,
+ rpc_buffer_slabp);
if (!rpc_buffer_mempool)
goto err_nomem;
return 0;
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index 4979f226e28..dea529666d6 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -21,6 +21,7 @@
#include <linux/seq_file.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svcsock.h>
+#include <linux/sunrpc/metrics.h>
#define RPCDBG_FACILITY RPCDBG_MISC
@@ -106,11 +107,125 @@ void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) {
}
}
+/**
+ * rpc_alloc_iostats - allocate an rpc_iostats structure
+ * @clnt: RPC program, version, and xprt
+ *
+ */
+struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt)
+{
+ unsigned int ops = clnt->cl_maxproc;
+ size_t size = ops * sizeof(struct rpc_iostats);
+ struct rpc_iostats *new;
+
+ new = kmalloc(size, GFP_KERNEL);
+ if (new)
+ memset(new, 0 , size);
+ return new;
+}
+EXPORT_SYMBOL(rpc_alloc_iostats);
+
+/**
+ * rpc_free_iostats - release an rpc_iostats structure
+ * @stats: doomed rpc_iostats structure
+ *
+ */
+void rpc_free_iostats(struct rpc_iostats *stats)
+{
+ kfree(stats);
+}
+EXPORT_SYMBOL(rpc_free_iostats);
+
+/**
+ * rpc_count_iostats - tally up per-task stats
+ * @task: completed rpc_task
+ *
+ * Relies on the caller for serialization.
+ */
+void rpc_count_iostats(struct rpc_task *task)
+{
+ struct rpc_rqst *req = task->tk_rqstp;
+ struct rpc_iostats *stats = task->tk_client->cl_metrics;
+ struct rpc_iostats *op_metrics;
+ long rtt, execute, queue;
+
+ if (!stats || !req)
+ return;
+ op_metrics = &stats[task->tk_msg.rpc_proc->p_statidx];
+
+ op_metrics->om_ops++;
+ op_metrics->om_ntrans += req->rq_ntrans;
+ op_metrics->om_timeouts += task->tk_timeouts;
+
+ op_metrics->om_bytes_sent += task->tk_bytes_sent;
+ op_metrics->om_bytes_recv += req->rq_received;
+
+ queue = (long)req->rq_xtime - task->tk_start;
+ if (queue < 0)
+ queue = -queue;
+ op_metrics->om_queue += queue;
+
+ rtt = task->tk_rtt;
+ if (rtt < 0)
+ rtt = -rtt;
+ op_metrics->om_rtt += rtt;
+
+ execute = (long)jiffies - task->tk_start;
+ if (execute < 0)
+ execute = -execute;
+ op_metrics->om_execute += execute;
+}
+
+void _print_name(struct seq_file *seq, unsigned int op, struct rpc_procinfo *procs)
+{
+ if (procs[op].p_name)
+ seq_printf(seq, "\t%12s: ", procs[op].p_name);
+ else if (op == 0)
+ seq_printf(seq, "\t NULL: ");
+ else
+ seq_printf(seq, "\t%12u: ", op);
+}
+
+#define MILLISECS_PER_JIFFY (1000 / HZ)
+
+void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt)
+{
+ struct rpc_iostats *stats = clnt->cl_metrics;
+ struct rpc_xprt *xprt = clnt->cl_xprt;
+ unsigned int op, maxproc = clnt->cl_maxproc;
+
+ if (!stats)
+ return;
+
+ seq_printf(seq, "\tRPC iostats version: %s ", RPC_IOSTATS_VERS);
+ seq_printf(seq, "p/v: %u/%u (%s)\n",
+ clnt->cl_prog, clnt->cl_vers, clnt->cl_protname);
+
+ if (xprt)
+ xprt->ops->print_stats(xprt, seq);
+
+ seq_printf(seq, "\tper-op statistics\n");
+ for (op = 0; op < maxproc; op++) {
+ struct rpc_iostats *metrics = &stats[op];
+ _print_name(seq, op, clnt->cl_procinfo);
+ seq_printf(seq, "%lu %lu %lu %Lu %Lu %Lu %Lu %Lu\n",
+ metrics->om_ops,
+ metrics->om_ntrans,
+ metrics->om_timeouts,
+ metrics->om_bytes_sent,
+ metrics->om_bytes_recv,
+ metrics->om_queue * MILLISECS_PER_JIFFY,
+ metrics->om_rtt * MILLISECS_PER_JIFFY,
+ metrics->om_execute * MILLISECS_PER_JIFFY);
+ }
+}
+EXPORT_SYMBOL(rpc_print_iostats);
+
/*
* Register/unregister RPC proc files
*/
static inline struct proc_dir_entry *
-do_register(const char *name, void *data, struct file_operations *fops)
+do_register(const char *name, void *data, const struct file_operations *fops)
{
struct proc_dir_entry *ent;
@@ -138,7 +253,7 @@ rpc_proc_unregister(const char *name)
}
struct proc_dir_entry *
-svc_proc_register(struct svc_stat *statp, struct file_operations *fops)
+svc_proc_register(struct svc_stat *statp, const struct file_operations *fops)
{
return do_register(statp->program->pg_name, statp, fops);
}
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 9f737320359..769114f0f88 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -105,8 +105,6 @@ EXPORT_SYMBOL(auth_unix_lookup);
EXPORT_SYMBOL(cache_check);
EXPORT_SYMBOL(cache_flush);
EXPORT_SYMBOL(cache_purge);
-EXPORT_SYMBOL(cache_fresh);
-EXPORT_SYMBOL(cache_init);
EXPORT_SYMBOL(cache_register);
EXPORT_SYMBOL(cache_unregister);
EXPORT_SYMBOL(qword_add);
@@ -142,6 +140,7 @@ EXPORT_SYMBOL(nlm_debug);
extern int register_rpc_pipefs(void);
extern void unregister_rpc_pipefs(void);
+extern struct cache_detail ip_map_cache;
static int __init
init_sunrpc(void)
@@ -158,7 +157,6 @@ init_sunrpc(void)
#ifdef CONFIG_PROC_FS
rpc_proc_init();
#endif
- cache_register(&auth_domain_cache);
cache_register(&ip_map_cache);
out:
return err;
@@ -169,8 +167,6 @@ cleanup_sunrpc(void)
{
unregister_rpc_pipefs();
rpc_destroy_mempool();
- if (cache_unregister(&auth_domain_cache))
- printk(KERN_ERR "sunrpc: failed to unregister auth_domain cache\n");
if (cache_unregister(&ip_map_cache))
printk(KERN_ERR "sunrpc: failed to unregister ip_map cache\n");
#ifdef RPC_DEBUG
diff --git a/net/sunrpc/svcauth.c b/net/sunrpc/svcauth.c
index dda4f0c6351..5b28c617680 100644
--- a/net/sunrpc/svcauth.c
+++ b/net/sunrpc/svcauth.c
@@ -106,112 +106,56 @@ svc_auth_unregister(rpc_authflavor_t flavor)
EXPORT_SYMBOL(svc_auth_unregister);
/**************************************************
- * cache for domain name to auth_domain
- * Entries are only added by flavours which will normally
- * have a structure that 'inherits' from auth_domain.
- * e.g. when an IP -> domainname is given to auth_unix,
- * and the domain name doesn't exist, it will create a
- * auth_unix_domain and add it to this hash table.
- * If it finds the name does exist, but isn't AUTH_UNIX,
- * it will complain.
+ * 'auth_domains' are stored in a hash table indexed by name.
+ * When the last reference to an 'auth_domain' is dropped,
+ * the object is unhashed and freed.
+ * If auth_domain_lookup fails to find an entry, it will return
+ * it's second argument 'new'. If this is non-null, it will
+ * have been atomically linked into the table.
*/
-/*
- * Auth auth_domain cache is somewhat different to other caches,
- * largely because the entries are possibly of different types:
- * each auth flavour has it's own type.
- * One consequence of this that DefineCacheLookup cannot
- * allocate a new structure as it cannot know the size.
- * Notice that the "INIT" code fragment is quite different
- * from other caches. When auth_domain_lookup might be
- * creating a new domain, the new domain is passed in
- * complete and it is used as-is rather than being copied into
- * another structure.
- */
#define DN_HASHBITS 6
#define DN_HASHMAX (1<<DN_HASHBITS)
#define DN_HASHMASK (DN_HASHMAX-1)
-static struct cache_head *auth_domain_table[DN_HASHMAX];
-
-static void auth_domain_drop(struct cache_head *item, struct cache_detail *cd)
-{
- struct auth_domain *dom = container_of(item, struct auth_domain, h);
- if (cache_put(item,cd))
- authtab[dom->flavour]->domain_release(dom);
-}
-
-
-struct cache_detail auth_domain_cache = {
- .owner = THIS_MODULE,
- .hash_size = DN_HASHMAX,
- .hash_table = auth_domain_table,
- .name = "auth.domain",
- .cache_put = auth_domain_drop,
-};
+static struct hlist_head auth_domain_table[DN_HASHMAX];
+static spinlock_t auth_domain_lock = SPIN_LOCK_UNLOCKED;
void auth_domain_put(struct auth_domain *dom)
{
- auth_domain_drop(&dom->h, &auth_domain_cache);
-}
-
-static inline int auth_domain_hash(struct auth_domain *item)
-{
- return hash_str(item->name, DN_HASHBITS);
-}
-static inline int auth_domain_match(struct auth_domain *tmp, struct auth_domain *item)
-{
- return strcmp(tmp->name, item->name) == 0;
+ if (atomic_dec_and_lock(&dom->ref.refcount, &auth_domain_lock)) {
+ hlist_del(&dom->hash);
+ dom->flavour->domain_release(dom);
+ }
}
struct auth_domain *
-auth_domain_lookup(struct auth_domain *item, int set)
+auth_domain_lookup(char *name, struct auth_domain *new)
{
- struct auth_domain *tmp = NULL;
- struct cache_head **hp, **head;
- head = &auth_domain_cache.hash_table[auth_domain_hash(item)];
-
- if (set)
- write_lock(&auth_domain_cache.hash_lock);
- else
- read_lock(&auth_domain_cache.hash_lock);
- for (hp=head; *hp != NULL; hp = &tmp->h.next) {
- tmp = container_of(*hp, struct auth_domain, h);
- if (!auth_domain_match(tmp, item))
- continue;
- if (!set) {
- cache_get(&tmp->h);
- goto out_noset;
+ struct auth_domain *hp;
+ struct hlist_head *head;
+ struct hlist_node *np;
+
+ head = &auth_domain_table[hash_str(name, DN_HASHBITS)];
+
+ spin_lock(&auth_domain_lock);
+
+ hlist_for_each_entry(hp, np, head, hash) {
+ if (strcmp(hp->name, name)==0) {
+ kref_get(&hp->ref);
+ spin_unlock(&auth_domain_lock);
+ return hp;
}
- *hp = tmp->h.next;
- tmp->h.next = NULL;
- auth_domain_drop(&tmp->h, &auth_domain_cache);
- goto out_set;
}
- /* Didn't find anything */
- if (!set)
- goto out_nada;
- auth_domain_cache.entries++;
-out_set:
- item->h.next = *head;
- *head = &item->h;
- cache_get(&item->h);
- write_unlock(&auth_domain_cache.hash_lock);
- cache_fresh(&auth_domain_cache, &item->h, item->h.expiry_time);
- cache_get(&item->h);
- return item;
-out_nada:
- tmp = NULL;
-out_noset:
- read_unlock(&auth_domain_cache.hash_lock);
- return tmp;
+ if (new) {
+ hlist_add_head(&new->hash, head);
+ kref_get(&new->ref);
+ }
+ spin_unlock(&auth_domain_lock);
+ return new;
}
struct auth_domain *auth_domain_find(char *name)
{
- struct auth_domain *rv, ad;
-
- ad.name = name;
- rv = auth_domain_lookup(&ad, 0);
- return rv;
+ return auth_domain_lookup(name, NULL);
}
diff --git a/net/sunrpc/svcauth_unix.c b/net/sunrpc/svcauth_unix.c
index 3e6c694bbad..7e5707e2d6b 100644
--- a/net/sunrpc/svcauth_unix.c
+++ b/net/sunrpc/svcauth_unix.c
@@ -27,41 +27,35 @@ struct unix_domain {
/* other stuff later */
};
+extern struct auth_ops svcauth_unix;
+
struct auth_domain *unix_domain_find(char *name)
{
- struct auth_domain *rv, ud;
- struct unix_domain *new;
-
- ud.name = name;
-
- rv = auth_domain_lookup(&ud, 0);
-
- foundit:
- if (rv && rv->flavour != RPC_AUTH_UNIX) {
- auth_domain_put(rv);
- return NULL;
- }
- if (rv)
- return rv;
-
- new = kmalloc(sizeof(*new), GFP_KERNEL);
- if (new == NULL)
- return NULL;
- cache_init(&new->h.h);
- new->h.name = kstrdup(name, GFP_KERNEL);
- new->h.flavour = RPC_AUTH_UNIX;
- new->addr_changes = 0;
- new->h.h.expiry_time = NEVER;
-
- rv = auth_domain_lookup(&new->h, 2);
- if (rv == &new->h) {
- if (atomic_dec_and_test(&new->h.h.refcnt)) BUG();
- } else {
- auth_domain_put(&new->h);
- goto foundit;
+ struct auth_domain *rv;
+ struct unix_domain *new = NULL;
+
+ rv = auth_domain_lookup(name, NULL);
+ while(1) {
+ if (rv) {
+ if (new && rv != &new->h)
+ auth_domain_put(&new->h);
+
+ if (rv->flavour != &svcauth_unix) {
+ auth_domain_put(rv);
+ return NULL;
+ }
+ return rv;
+ }
+
+ new = kmalloc(sizeof(*new), GFP_KERNEL);
+ if (new == NULL)
+ return NULL;
+ kref_init(&new->h.ref);
+ new->h.name = kstrdup(name, GFP_KERNEL);
+ new->h.flavour = &svcauth_unix;
+ new->addr_changes = 0;
+ rv = auth_domain_lookup(name, &new->h);
}
-
- return rv;
}
static void svcauth_unix_domain_release(struct auth_domain *dom)
@@ -90,15 +84,15 @@ struct ip_map {
};
static struct cache_head *ip_table[IP_HASHMAX];
-static void ip_map_put(struct cache_head *item, struct cache_detail *cd)
+static void ip_map_put(struct kref *kref)
{
+ struct cache_head *item = container_of(kref, struct cache_head, ref);
struct ip_map *im = container_of(item, struct ip_map,h);
- if (cache_put(item, cd)) {
- if (test_bit(CACHE_VALID, &item->flags) &&
- !test_bit(CACHE_NEGATIVE, &item->flags))
- auth_domain_put(&im->m_client->h);
- kfree(im);
- }
+
+ if (test_bit(CACHE_VALID, &item->flags) &&
+ !test_bit(CACHE_NEGATIVE, &item->flags))
+ auth_domain_put(&im->m_client->h);
+ kfree(im);
}
#if IP_HASHBITS == 8
@@ -112,28 +106,38 @@ static inline int hash_ip(unsigned long ip)
return (hash ^ (hash>>8)) & 0xff;
}
#endif
-
-static inline int ip_map_hash(struct ip_map *item)
-{
- return hash_str(item->m_class, IP_HASHBITS) ^
- hash_ip((unsigned long)item->m_addr.s_addr);
-}
-static inline int ip_map_match(struct ip_map *item, struct ip_map *tmp)
+static int ip_map_match(struct cache_head *corig, struct cache_head *cnew)
{
- return strcmp(tmp->m_class, item->m_class) == 0
- && tmp->m_addr.s_addr == item->m_addr.s_addr;
+ struct ip_map *orig = container_of(corig, struct ip_map, h);
+ struct ip_map *new = container_of(cnew, struct ip_map, h);
+ return strcmp(orig->m_class, new->m_class) == 0
+ && orig->m_addr.s_addr == new->m_addr.s_addr;
}
-static inline void ip_map_init(struct ip_map *new, struct ip_map *item)
+static void ip_map_init(struct cache_head *cnew, struct cache_head *citem)
{
+ struct ip_map *new = container_of(cnew, struct ip_map, h);
+ struct ip_map *item = container_of(citem, struct ip_map, h);
+
strcpy(new->m_class, item->m_class);
new->m_addr.s_addr = item->m_addr.s_addr;
}
-static inline void ip_map_update(struct ip_map *new, struct ip_map *item)
+static void update(struct cache_head *cnew, struct cache_head *citem)
{
- cache_get(&item->m_client->h.h);
+ struct ip_map *new = container_of(cnew, struct ip_map, h);
+ struct ip_map *item = container_of(citem, struct ip_map, h);
+
+ kref_get(&item->m_client->h.ref);
new->m_client = item->m_client;
new->m_add_change = item->m_add_change;
}
+static struct cache_head *ip_map_alloc(void)
+{
+ struct ip_map *i = kmalloc(sizeof(*i), GFP_KERNEL);
+ if (i)
+ return &i->h;
+ else
+ return NULL;
+}
static void ip_map_request(struct cache_detail *cd,
struct cache_head *h,
@@ -154,7 +158,8 @@ static void ip_map_request(struct cache_detail *cd,
(*bpp)[-1] = '\n';
}
-static struct ip_map *ip_map_lookup(struct ip_map *, int);
+static struct ip_map *ip_map_lookup(char *class, struct in_addr addr);
+static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry);
static int ip_map_parse(struct cache_detail *cd,
char *mesg, int mlen)
@@ -166,7 +171,11 @@ static int ip_map_parse(struct cache_detail *cd,
int len;
int b1,b2,b3,b4;
char c;
- struct ip_map ipm, *ipmp;
+ char class[8];
+ struct in_addr addr;
+ int err;
+
+ struct ip_map *ipmp;
struct auth_domain *dom;
time_t expiry;
@@ -175,7 +184,7 @@ static int ip_map_parse(struct cache_detail *cd,
mesg[mlen-1] = 0;
/* class */
- len = qword_get(&mesg, ipm.m_class, sizeof(ipm.m_class));
+ len = qword_get(&mesg, class, sizeof(class));
if (len <= 0) return -EINVAL;
/* ip address */
@@ -200,25 +209,22 @@ static int ip_map_parse(struct cache_detail *cd,
} else
dom = NULL;
- ipm.m_addr.s_addr =
+ addr.s_addr =
htonl((((((b1<<8)|b2)<<8)|b3)<<8)|b4);
- ipm.h.flags = 0;
- if (dom) {
- ipm.m_client = container_of(dom, struct unix_domain, h);
- ipm.m_add_change = ipm.m_client->addr_changes;
+
+ ipmp = ip_map_lookup(class,addr);
+ if (ipmp) {
+ err = ip_map_update(ipmp,
+ container_of(dom, struct unix_domain, h),
+ expiry);
} else
- set_bit(CACHE_NEGATIVE, &ipm.h.flags);
- ipm.h.expiry_time = expiry;
+ err = -ENOMEM;
- ipmp = ip_map_lookup(&ipm, 1);
- if (ipmp)
- ip_map_put(&ipmp->h, &ip_map_cache);
if (dom)
auth_domain_put(dom);
- if (!ipmp)
- return -ENOMEM;
+
cache_flush();
- return 0;
+ return err;
}
static int ip_map_show(struct seq_file *m,
@@ -262,32 +268,70 @@ struct cache_detail ip_map_cache = {
.cache_request = ip_map_request,
.cache_parse = ip_map_parse,
.cache_show = ip_map_show,
+ .match = ip_map_match,
+ .init = ip_map_init,
+ .update = update,
+ .alloc = ip_map_alloc,
};
-static DefineSimpleCacheLookup(ip_map, 0)
+static struct ip_map *ip_map_lookup(char *class, struct in_addr addr)
+{
+ struct ip_map ip;
+ struct cache_head *ch;
+
+ strcpy(ip.m_class, class);
+ ip.m_addr = addr;
+ ch = sunrpc_cache_lookup(&ip_map_cache, &ip.h,
+ hash_str(class, IP_HASHBITS) ^
+ hash_ip((unsigned long)addr.s_addr));
+
+ if (ch)
+ return container_of(ch, struct ip_map, h);
+ else
+ return NULL;
+}
+static int ip_map_update(struct ip_map *ipm, struct unix_domain *udom, time_t expiry)
+{
+ struct ip_map ip;
+ struct cache_head *ch;
+
+ ip.m_client = udom;
+ ip.h.flags = 0;
+ if (!udom)
+ set_bit(CACHE_NEGATIVE, &ip.h.flags);
+ else {
+ ip.m_add_change = udom->addr_changes;
+ /* if this is from the legacy set_client system call,
+ * we need m_add_change to be one higher
+ */
+ if (expiry == NEVER)
+ ip.m_add_change++;
+ }
+ ip.h.expiry_time = expiry;
+ ch = sunrpc_cache_update(&ip_map_cache,
+ &ip.h, &ipm->h,
+ hash_str(ipm->m_class, IP_HASHBITS) ^
+ hash_ip((unsigned long)ipm->m_addr.s_addr));
+ if (!ch)
+ return -ENOMEM;
+ cache_put(ch, &ip_map_cache);
+ return 0;
+}
int auth_unix_add_addr(struct in_addr addr, struct auth_domain *dom)
{
struct unix_domain *udom;
- struct ip_map ip, *ipmp;
+ struct ip_map *ipmp;
- if (dom->flavour != RPC_AUTH_UNIX)
+ if (dom->flavour != &svcauth_unix)
return -EINVAL;
udom = container_of(dom, struct unix_domain, h);
- strcpy(ip.m_class, "nfsd");
- ip.m_addr = addr;
- ip.m_client = udom;
- ip.m_add_change = udom->addr_changes+1;
- ip.h.flags = 0;
- ip.h.expiry_time = NEVER;
-
- ipmp = ip_map_lookup(&ip, 1);
+ ipmp = ip_map_lookup("nfsd", addr);
- if (ipmp) {
- ip_map_put(&ipmp->h, &ip_map_cache);
- return 0;
- } else
+ if (ipmp)
+ return ip_map_update(ipmp, udom, NEVER);
+ else
return -ENOMEM;
}
@@ -295,7 +339,7 @@ int auth_unix_forget_old(struct auth_domain *dom)
{
struct unix_domain *udom;
- if (dom->flavour != RPC_AUTH_UNIX)
+ if (dom->flavour != &svcauth_unix)
return -EINVAL;
udom = container_of(dom, struct unix_domain, h);
udom->addr_changes++;
@@ -310,7 +354,7 @@ struct auth_domain *auth_unix_lookup(struct in_addr addr)
strcpy(key.m_class, "nfsd");
key.m_addr = addr;
- ipm = ip_map_lookup(&key, 0);
+ ipm = ip_map_lookup("nfsd", addr);
if (!ipm)
return NULL;
@@ -323,31 +367,28 @@ struct auth_domain *auth_unix_lookup(struct in_addr addr)
rv = NULL;
} else {
rv = &ipm->m_client->h;
- cache_get(&rv->h);
+ kref_get(&rv->ref);
}
- ip_map_put(&ipm->h, &ip_map_cache);
+ cache_put(&ipm->h, &ip_map_cache);
return rv;
}
void svcauth_unix_purge(void)
{
cache_purge(&ip_map_cache);
- cache_purge(&auth_domain_cache);
}
static int
svcauth_unix_set_client(struct svc_rqst *rqstp)
{
- struct ip_map key, *ipm;
+ struct ip_map *ipm;
rqstp->rq_client = NULL;
if (rqstp->rq_proc == 0)
return SVC_OK;
- strcpy(key.m_class, rqstp->rq_server->sv_program->pg_class);
- key.m_addr = rqstp->rq_addr.sin_addr;
-
- ipm = ip_map_lookup(&key, 0);
+ ipm = ip_map_lookup(rqstp->rq_server->sv_program->pg_class,
+ rqstp->rq_addr.sin_addr);
if (ipm == NULL)
return SVC_DENIED;
@@ -361,8 +402,8 @@ svcauth_unix_set_client(struct svc_rqst *rqstp)
return SVC_DENIED;
case 0:
rqstp->rq_client = &ipm->m_client->h;
- cache_get(&rqstp->rq_client->h);
- ip_map_put(&ipm->h, &ip_map_cache);
+ kref_get(&rqstp->rq_client->ref);
+ cache_put(&ipm->h, &ip_map_cache);
break;
}
return SVC_OK;
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 50580620e89..a27905a0ad2 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1296,13 +1296,13 @@ svc_send(struct svc_rqst *rqstp)
xb->page_len +
xb->tail[0].iov_len;
- /* Grab svsk->sk_sem to serialize outgoing data. */
- down(&svsk->sk_sem);
+ /* Grab svsk->sk_mutex to serialize outgoing data. */
+ mutex_lock(&svsk->sk_mutex);
if (test_bit(SK_DEAD, &svsk->sk_flags))
len = -ENOTCONN;
else
len = svsk->sk_sendto(rqstp);
- up(&svsk->sk_sem);
+ mutex_unlock(&svsk->sk_mutex);
svc_sock_release(rqstp);
if (len == -ECONNREFUSED || len == -ENOTCONN || len == -EAGAIN)
@@ -1351,7 +1351,7 @@ svc_setup_socket(struct svc_serv *serv, struct socket *sock,
svsk->sk_lastrecv = get_seconds();
INIT_LIST_HEAD(&svsk->sk_deferred);
INIT_LIST_HEAD(&svsk->sk_ready);
- sema_init(&svsk->sk_sem, 1);
+ mutex_init(&svsk->sk_mutex);
/* Initialize the socket */
if (sock->type == SOCK_DGRAM)
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 8ff2c8acb22..4dd5b3cfe75 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -44,13 +44,13 @@
#include <linux/random.h>
#include <linux/sunrpc/clnt.h>
+#include <linux/sunrpc/metrics.h>
/*
* Local variables
*/
#ifdef RPC_DEBUG
-# undef RPC_DEBUG_DATA
# define RPCDBG_FACILITY RPCDBG_XPRT
#endif
@@ -548,6 +548,7 @@ void xprt_connect(struct rpc_task *task)
task->tk_timeout = xprt->connect_timeout;
rpc_sleep_on(&xprt->pending, task, xprt_connect_status, NULL);
+ xprt->stat.connect_start = jiffies;
xprt->ops->connect(task);
}
return;
@@ -558,6 +559,8 @@ static void xprt_connect_status(struct rpc_task *task)
struct rpc_xprt *xprt = task->tk_xprt;
if (task->tk_status >= 0) {
+ xprt->stat.connect_count++;
+ xprt->stat.connect_time += (long)jiffies - xprt->stat.connect_start;
dprintk("RPC: %4d xprt_connect_status: connection established\n",
task->tk_pid);
return;
@@ -601,16 +604,14 @@ static void xprt_connect_status(struct rpc_task *task)
struct rpc_rqst *xprt_lookup_rqst(struct rpc_xprt *xprt, u32 xid)
{
struct list_head *pos;
- struct rpc_rqst *req = NULL;
list_for_each(pos, &xprt->recv) {
struct rpc_rqst *entry = list_entry(pos, struct rpc_rqst, rq_list);
- if (entry->rq_xid == xid) {
- req = entry;
- break;
- }
+ if (entry->rq_xid == xid)
+ return entry;
}
- return req;
+ xprt->stat.bad_xids++;
+ return NULL;
}
/**
@@ -646,7 +647,12 @@ void xprt_complete_rqst(struct rpc_task *task, int copied)
dprintk("RPC: %5u xid %08x complete (%d bytes received)\n",
task->tk_pid, ntohl(req->rq_xid), copied);
+ task->tk_xprt->stat.recvs++;
+ task->tk_rtt = (long)jiffies - req->rq_xtime;
+
list_del_init(&req->rq_list);
+ /* Ensure all writes are done before we update req->rq_received */
+ smp_wmb();
req->rq_received = req->rq_private_buf.len = copied;
rpc_wake_up_task(task);
}
@@ -723,7 +729,6 @@ void xprt_transmit(struct rpc_task *task)
dprintk("RPC: %4d xprt_transmit(%u)\n", task->tk_pid, req->rq_slen);
- smp_rmb();
if (!req->rq_received) {
if (list_empty(&req->rq_list)) {
spin_lock_bh(&xprt->transport_lock);
@@ -744,12 +749,19 @@ void xprt_transmit(struct rpc_task *task)
if (status == 0) {
dprintk("RPC: %4d xmit complete\n", task->tk_pid);
spin_lock_bh(&xprt->transport_lock);
+
xprt->ops->set_retrans_timeout(task);
+
+ xprt->stat.sends++;
+ xprt->stat.req_u += xprt->stat.sends - xprt->stat.recvs;
+ xprt->stat.bklog_u += xprt->backlog.qlen;
+
/* Don't race with disconnect */
if (!xprt_connected(xprt))
task->tk_status = -ENOTCONN;
else if (!req->rq_received)
rpc_sleep_on(&xprt->pending, task, NULL, xprt_timer);
+
xprt->ops->release_xprt(xprt, task);
spin_unlock_bh(&xprt->transport_lock);
return;
@@ -848,6 +860,7 @@ void xprt_release(struct rpc_task *task)
if (!(req = task->tk_rqstp))
return;
+ rpc_count_iostats(task);
spin_lock_bh(&xprt->transport_lock);
xprt->ops->release_xprt(xprt, task);
if (xprt->ops->release_request)
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index c458f8d1d6d..4b4e7dfdff1 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -382,6 +382,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
/* If we've sent the entire packet, immediately
* reset the count of bytes sent. */
req->rq_bytes_sent += status;
+ task->tk_bytes_sent += status;
if (likely(req->rq_bytes_sent >= req->rq_slen)) {
req->rq_bytes_sent = 0;
return 0;
@@ -1114,6 +1115,8 @@ static void xs_tcp_connect_worker(void *args)
}
/* Tell the socket layer to start connecting... */
+ xprt->stat.connect_count++;
+ xprt->stat.connect_start = jiffies;
status = sock->ops->connect(sock, (struct sockaddr *) &xprt->addr,
sizeof(xprt->addr), O_NONBLOCK);
dprintk("RPC: %p connect status %d connected %d sock state %d\n",
@@ -1177,6 +1180,50 @@ static void xs_connect(struct rpc_task *task)
}
}
+/**
+ * xs_udp_print_stats - display UDP socket-specifc stats
+ * @xprt: rpc_xprt struct containing statistics
+ * @seq: output file
+ *
+ */
+static void xs_udp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
+{
+ seq_printf(seq, "\txprt:\tudp %u %lu %lu %lu %lu %Lu %Lu\n",
+ xprt->port,
+ xprt->stat.bind_count,
+ xprt->stat.sends,
+ xprt->stat.recvs,
+ xprt->stat.bad_xids,
+ xprt->stat.req_u,
+ xprt->stat.bklog_u);
+}
+
+/**
+ * xs_tcp_print_stats - display TCP socket-specifc stats
+ * @xprt: rpc_xprt struct containing statistics
+ * @seq: output file
+ *
+ */
+static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq)
+{
+ long idle_time = 0;
+
+ if (xprt_connected(xprt))
+ idle_time = (long)(jiffies - xprt->last_used) / HZ;
+
+ seq_printf(seq, "\txprt:\ttcp %u %lu %lu %lu %ld %lu %lu %lu %Lu %Lu\n",
+ xprt->port,
+ xprt->stat.bind_count,
+ xprt->stat.connect_count,
+ xprt->stat.connect_time,
+ idle_time,
+ xprt->stat.sends,
+ xprt->stat.recvs,
+ xprt->stat.bad_xids,
+ xprt->stat.req_u,
+ xprt->stat.bklog_u);
+}
+
static struct rpc_xprt_ops xs_udp_ops = {
.set_buffer_size = xs_udp_set_buffer_size,
.reserve_xprt = xprt_reserve_xprt_cong,
@@ -1191,6 +1238,7 @@ static struct rpc_xprt_ops xs_udp_ops = {
.release_request = xprt_release_rqst_cong,
.close = xs_close,
.destroy = xs_destroy,
+ .print_stats = xs_udp_print_stats,
};
static struct rpc_xprt_ops xs_tcp_ops = {
@@ -1204,6 +1252,7 @@ static struct rpc_xprt_ops xs_tcp_ops = {
.set_retrans_timeout = xprt_set_retrans_timeout_def,
.close = xs_close,
.destroy = xs_destroy,
+ .print_stats = xs_tcp_print_stats,
};
/**
generated by cgit (git 2.34.1) at 2024-11-11 10:49:33 +0000