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Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

Browse Source 
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (103 commits)
  SUNRPC,RPCSEC_GSS: spkm3--fix config dependencies
  SUNRPC,RPCSEC_GSS: spkm3: import contexts using NID_cast5_cbc
  LOCKD: Make nlmsvc_traverse_shares return void
  LOCKD: nlmsvc_traverse_blocks return is unused
  SUNRPC,RPCSEC_GSS: fix krb5 sequence numbers.
  NFSv4: Dont list system.nfs4_acl for filesystems that don't support it.
  SUNRPC,RPCSEC_GSS: remove unnecessary kmalloc of a checksum
  SUNRPC: Ensure rpc_call_async() always calls tk_ops->rpc_release()
  SUNRPC: Fix memory barriers for req->rq_received
  NFS: Fix a race in nfs_sync_inode()
  NFS: Clean up nfs_flush_list()
  NFS: Fix a race with PG_private and nfs_release_page()
  NFSv4: Ensure the callback daemon flushes signals
  SUNRPC: Fix a 'Busy inodes' error in rpc_pipefs
  NFS, NLM: Allow blocking locks to respect signals
  NFS: Make nfs_fhget() return appropriate error values
  NFSv4: Fix an oops in nfs4_fill_super
  lockd: blocks should hold a reference to the nlm_file
  NFSv4: SETCLIENTID_CONFIRM should handle NFS4ERR_DELAY/NFS4ERR_RESOURCE
  NFSv4: Send the delegation stateid for SETATTR calls
  ...
This commit is contained in:
Linus Torvalds
2006-03-25 09:18:27 -08:00
parent 2e9abdd9ba 1ebbe2b200
commit 53846a21c1
69 changed files with 2878 additions and 1922 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
net/sunrpc/auth.c
View File

@@ -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;
}

2
net/sunrpc/auth_gss/auth_gss.c
View File

@@ -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);

15
net/sunrpc/auth_gss/gss_krb5_seal.c
View File

@@ -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;
}

4
net/sunrpc/auth_gss/gss_krb5_unseal.c
View File

@@ -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;
}

17
net/sunrpc/auth_gss/gss_krb5_wrap.c
View File

@@ -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;
}

6
net/sunrpc/auth_gss/gss_spkm3_mech.c
View File

@@ -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");

5
net/sunrpc/auth_gss/gss_spkm3_seal.c
View File

@@ -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;

4
net/sunrpc/auth_gss/gss_spkm3_unseal.c
View File

@@ -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;
}

53
net/sunrpc/clnt.c
View File

@@ -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);

41
net/sunrpc/pmap_clnt.c
View File

@@ -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",
},
};

31
net/sunrpc/rpc_pipe.c
View File

@@ -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);
@@ -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);

12
net/sunrpc/sched.c
View File

@@ -65,7 +65,7 @@ static LIST_HEAD(all_tasks);
*/
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.
@@ -182,6 +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",
@@ -216,6 +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));
}
@@ -816,6 +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);
}
@@ -917,8 +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;

115
net/sunrpc/stats.c
View File

@@ -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
@@ -106,6 +107,120 @@ 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
*/

29
net/sunrpc/xprt.c
View File

@@ -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)

49
net/sunrpc/xprtsock.c
View File

@@ -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,
};
/**