svn commit: r201899 - head/sys/nfsserver
Marius Strobl
marius at FreeBSD.org
Sat Jan 9 15:59:15 UTC 2010
Author: marius
Date: Sat Jan 9 15:59:15 2010
New Revision: 201899
URL: http://svn.freebsd.org/changeset/base/201899
Log:
Some style(9) fixes in order to fabricate a commit to denote that
the commit message for r201896 actually should have read:
As nfsm_srvmtofh_xx() assumes the 4-byte alignment required by XDR
ensure the mbuf data is aligned accordingly by calling nfs_realign()
in fha_extract_info(). This fix is orthogonal to the problem solved
by r199274/r199284.
PR: 142102 (second part)
MFC after: 1 week
Modified:
head/sys/nfsserver/nfs.h
head/sys/nfsserver/nfs_fha.c
head/sys/nfsserver/nfs_srvkrpc.c
Modified: head/sys/nfsserver/nfs.h
==============================================================================
--- head/sys/nfsserver/nfs.h Sat Jan 9 15:43:47 2010 (r201898)
+++ head/sys/nfsserver/nfs.h Sat Jan 9 15:59:15 2010 (r201899)
@@ -82,14 +82,13 @@
#define IO_METASYNC 0
#endif
-
/* NFS state flags XXX -Wunused */
#define NFSRV_SNDLOCK 0x01000000 /* Send socket lock */
#define NFSRV_WANTSND 0x02000000 /* Want above */
/*
- * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
- * should ever try and use it.
+ * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and
+ * mount_nfs should ever try and use it.
*/
/*
Modified: head/sys/nfsserver/nfs_fha.c
==============================================================================
--- head/sys/nfsserver/nfs_fha.c Sat Jan 9 15:43:47 2010 (r201898)
+++ head/sys/nfsserver/nfs_fha.c Sat Jan 9 15:59:15 2010 (r201899)
@@ -71,16 +71,17 @@ static struct fha_global {
u_long hashmask;
} g_fha;
-/*
- * These are the entries in the filehandle hash. They talk about a specific
- * file, requests against which are being handled by one or more nfsds. We keep
- * a chain of nfsds against the file. We only have more than one if reads are
- * ongoing, and then only if the reads affect disparate regions of the file.
+/*
+ * These are the entries in the filehandle hash. They talk about a specific
+ * file, requests against which are being handled by one or more nfsds. We
+ * keep a chain of nfsds against the file. We only have more than one if reads
+ * are ongoing, and then only if the reads affect disparate regions of the
+ * file.
*
- * In general, we want to assign a new request to an existing nfsd if it is
- * going to contend with work happening already on that nfsd, or if the
- * operation is a read and the nfsd is already handling a proximate read. We
- * do this to avoid jumping around in the read stream unnecessarily, and to
+ * In general, we want to assign a new request to an existing nfsd if it is
+ * going to contend with work happening already on that nfsd, or if the
+ * operation is a read and the nfsd is already handling a proximate read. We
+ * do this to avoid jumping around in the read stream unnecessarily, and to
* avoid contention between threads over single files.
*/
struct fha_hash_entry {
@@ -101,7 +102,7 @@ struct fha_info {
};
static int fhe_stats_sysctl(SYSCTL_HANDLER_ARGS);
-
+
static void
nfs_fha_init(void *foo)
{
@@ -136,7 +137,7 @@ nfs_fha_init(void *foo)
&fha_ctls.max_reqs_per_nfsd, 0, "Maximum requests that "
"single nfsd thread should be working on at any time");
- SYSCTL_ADD_OID(&fha_clist, SYSCTL_STATIC_CHILDREN(_vfs_nfsrv_fha),
+ SYSCTL_ADD_OID(&fha_clist, SYSCTL_STATIC_CHILDREN(_vfs_nfsrv_fha),
OID_AUTO, "fhe_stats", CTLTYPE_STRING | CTLFLAG_RD, 0, 0,
fhe_stats_sysctl, "A", "");
}
@@ -151,7 +152,7 @@ nfs_fha_uninit(void *foo)
SYSINIT(nfs_fha, SI_SUB_ROOT_CONF, SI_ORDER_ANY, nfs_fha_init, NULL);
SYSUNINIT(nfs_fha, SI_SUB_ROOT_CONF, SI_ORDER_ANY, nfs_fha_uninit, NULL);
-/*
+/*
* This just specifies that offsets should obey affinity when within
* the same 1Mbyte (1<<20) chunk for the file (reads only for now).
*/
@@ -167,18 +168,18 @@ fha_extract_info(struct svc_req *req, st
u_int32_t *tl;
rpcproc_t procnum;
- /*
- * We start off with a random fh. If we get a reasonable
- * procnum, we set the fh. If there's a concept of offset
+ /*
+ * We start off with a random fh. If we get a reasonable
+ * procnum, we set the fh. If there's a concept of offset
* that we're interested in, we set that.
*/
i->fh = ++random_fh;
i->offset = 0;
i->locktype = LK_EXCLUSIVE;
-
+
/*
* Extract the procnum and convert to v3 form if necessary,
- * taking care to deal with out-of-range procnums. Caller will
+ * taking care to deal with out-of-range procnums. Caller will
* ensure that rq_vers is either 2 or 3.
*/
procnum = req->rq_proc;
@@ -188,19 +189,19 @@ fha_extract_info(struct svc_req *req, st
procnum = nfsrv_nfsv3_procid[procnum];
}
- /*
- * We do affinity for most. However, we divide a realm of affinity
- * by file offset so as to allow for concurrent random access. We
- * only do this for reads today, but this may change when IFS supports
+ /*
+ * We do affinity for most. However, we divide a realm of affinity
+ * by file offset so as to allow for concurrent random access. We
+ * only do this for reads today, but this may change when IFS supports
* efficient concurrent writes.
*/
if (procnum == NFSPROC_FSSTAT ||
procnum == NFSPROC_FSINFO ||
procnum == NFSPROC_PATHCONF ||
- procnum == NFSPROC_NOOP ||
+ procnum == NFSPROC_NOOP ||
procnum == NFSPROC_NULL)
goto out;
-
+
nfs_realign(&req->rq_args);
md = req->rq_args;
dpos = mtod(md, caddr_t);
@@ -270,8 +271,8 @@ fha_hash_entry_new(u_int64_t fh)
e->num_writes = 0;
e->num_threads = 0;
LIST_INIT(&e->threads);
-
- return e;
+
+ return (e);
}
static void
@@ -296,10 +297,9 @@ fha_hash_entry_lookup(SVCPOOL *pool, u_i
{
struct fha_hash_entry *fhe, *new_fhe;
- LIST_FOREACH(fhe, &g_fha.hashtable[fh % g_fha.hashmask], link) {
+ LIST_FOREACH(fhe, &g_fha.hashtable[fh % g_fha.hashmask], link)
if (fhe->fh == fh)
break;
- }
if (!fhe) {
/* Allocate a new entry. */
@@ -308,25 +308,24 @@ fha_hash_entry_lookup(SVCPOOL *pool, u_i
mtx_lock(&pool->sp_lock);
/* Double-check to make sure we still need the new entry. */
- LIST_FOREACH(fhe, &g_fha.hashtable[fh % g_fha.hashmask], link) {
+ LIST_FOREACH(fhe, &g_fha.hashtable[fh % g_fha.hashmask], link)
if (fhe->fh == fh)
break;
- }
if (!fhe) {
fhe = new_fhe;
LIST_INSERT_HEAD(&g_fha.hashtable[fh % g_fha.hashmask],
fhe, link);
- } else {
+ } else
fha_hash_entry_destroy(new_fhe);
- }
}
- return fhe;
+ return (fhe);
}
static void
fha_hash_entry_add_thread(struct fha_hash_entry *fhe, SVCTHREAD *thread)
{
+
LIST_INSERT_HEAD(&fhe->threads, thread, st_alink);
fhe->num_threads++;
}
@@ -339,7 +338,7 @@ fha_hash_entry_remove_thread(struct fha_
fhe->num_threads--;
}
-/*
+/*
* Account for an ongoing operation associated with this file.
*/
static void
@@ -365,7 +364,7 @@ get_idle_thread(SVCPOOL *pool)
}
-/*
+/*
* Get the service thread currently associated with the fhe that is
* appropriate to handle this operation.
*/
@@ -387,15 +386,15 @@ fha_hash_entry_choose_thread(SVCPOOL *po
/* If there are any writes in progress, use the first thread. */
if (fhe->num_writes) {
#if 0
- ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
"fha: %p(%d)w", thread, req_count);
#endif
return (thread);
}
- /*
- * Check for read locality, making sure that we won't
- * exceed our per-thread load limit in the process.
+ /*
+ * Check for read locality, making sure that we won't
+ * exceed our per-thread load limit in the process.
*/
offset1 = i->offset >> fha_ctls.bin_shift;
offset2 = STAILQ_FIRST(&thread->st_reqs)->rq_p3
@@ -404,21 +403,21 @@ fha_hash_entry_choose_thread(SVCPOOL *po
if ((fha_ctls.max_reqs_per_nfsd == 0) ||
(req_count < fha_ctls.max_reqs_per_nfsd)) {
#if 0
- ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
"fha: %p(%d)r", thread, req_count);
#endif
return (thread);
}
}
- /*
+ /*
* We don't have a locality match, so skip this thread,
- * but keep track of the most attractive thread in case
+ * but keep track of the most attractive thread in case
* we need to come back to it later.
*/
#if 0
- ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
- "fha: %p(%d)s off1 %llu off2 %llu", thread,
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ "fha: %p(%d)s off1 %llu off2 %llu", thread,
req_count, offset1, offset2);
#endif
if ((min_thread == NULL) || (req_count < min_count)) {
@@ -427,38 +426,38 @@ fha_hash_entry_choose_thread(SVCPOOL *po
}
}
- /*
- * We didn't find a good match yet. See if we can add
+ /*
+ * We didn't find a good match yet. See if we can add
* a new thread to this file handle entry's thread list.
*/
- if ((fha_ctls.max_nfsds_per_fh == 0) ||
+ if ((fha_ctls.max_nfsds_per_fh == 0) ||
(fhe->num_threads < fha_ctls.max_nfsds_per_fh)) {
- /*
- * We can add a new thread, so try for an idle thread
- * first, and fall back to this_thread if none are idle.
+ /*
+ * We can add a new thread, so try for an idle thread
+ * first, and fall back to this_thread if none are idle.
*/
if (STAILQ_EMPTY(&this_thread->st_reqs)) {
thread = this_thread;
#if 0
- ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
"fha: %p(%d)t", thread, thread->st_reqcount);
#endif
} else if ((thread = get_idle_thread(pool))) {
#if 0
- ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
"fha: %p(%d)i", thread, thread->st_reqcount);
#endif
- } else {
+ } else {
thread = this_thread;
#if 0
- ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
+ ITRACE_CURPROC(ITRACE_NFS, ITRACE_INFO,
"fha: %p(%d)b", thread, thread->st_reqcount);
#endif
}
fha_hash_entry_add_thread(fhe, thread);
} else {
- /*
- * We don't want to use any more threads for this file, so
+ /*
+ * We don't want to use any more threads for this file, so
* go back to the most attractive nfsd we're already using.
*/
thread = min_thread;
@@ -467,8 +466,8 @@ fha_hash_entry_choose_thread(SVCPOOL *po
return (thread);
}
-/*
- * After getting a request, try to assign it to some thread. Usually we
+/*
+ * After getting a request, try to assign it to some thread. Usually we
* handle it ourselves.
*/
SVCTHREAD *
@@ -491,16 +490,16 @@ fha_assign(SVCTHREAD *this_thread, struc
pool = req->rq_xprt->xp_pool;
fha_extract_info(req, &i);
- /*
- * We save the offset associated with this request for later
+ /*
+ * We save the offset associated with this request for later
* nfsd matching.
*/
fhe = fha_hash_entry_lookup(pool, i.fh);
req->rq_p1 = fhe;
req->rq_p2 = i.locktype;
req->rq_p3 = i.offset;
-
- /*
+
+ /*
* Choose a thread, taking into consideration locality, thread load,
* and the number of threads already working on this file.
*/
@@ -511,8 +510,8 @@ fha_assign(SVCTHREAD *this_thread, struc
return (thread);
}
-/*
- * Called when we're done with an operation. The request has already
+/*
+ * Called when we're done with an operation. The request has already
* been de-queued.
*/
void
Modified: head/sys/nfsserver/nfs_srvkrpc.c
==============================================================================
--- head/sys/nfsserver/nfs_srvkrpc.c Sat Jan 9 15:43:47 2010 (r201898)
+++ head/sys/nfsserver/nfs_srvkrpc.c Sat Jan 9 15:59:15 2010 (r201899)
@@ -187,19 +187,18 @@ nfssvc_nfsserver(struct thread *td, stru
}
error = nfssvc_addsock(fp, td);
fdrop(fp, td);
- } else if (uap->flag & NFSSVC_OLDNFSD) {
+ } else if (uap->flag & NFSSVC_OLDNFSD)
error = nfssvc_nfsd(td, NULL);
- } else if (uap->flag & NFSSVC_NFSD) {
- if (!uap->argp)
+ else if (uap->flag & NFSSVC_NFSD) {
+ if (!uap->argp)
return (EINVAL);
error = copyin(uap->argp, (caddr_t)&nfsdarg,
sizeof(nfsdarg));
if (error)
return (error);
error = nfssvc_nfsd(td, &nfsdarg);
- } else {
+ } else
error = ENXIO;
- }
return (error);
}
@@ -447,9 +446,8 @@ nfssvc_addsock(struct file *fp, struct t
siz = sb_max_adj;
error = soreserve(so, siz, siz);
- if (error) {
+ if (error)
return (error);
- }
/*
* Steal the socket from userland so that it doesn't close
@@ -471,7 +469,7 @@ nfssvc_addsock(struct file *fp, struct t
}
/*
- * Called by nfssvc() for nfsds. Just loops around servicing rpc requests
+ * Called by nfssvc() for nfsds. Just loops around servicing rpc requests
* until it is killed by a signal.
*/
static int
@@ -496,9 +494,9 @@ nfssvc_nfsd(struct thread *td, struct nf
#endif
/*
- * Only the first nfsd actually does any work. The RPC code
- * adds threads to it as needed. Any extra processes offered
- * by nfsd just exit. If nfsd is new enough, it will call us
+ * Only the first nfsd actually does any work. The RPC code
+ * adds threads to it as needed. Any extra processes offered
+ * by nfsd just exit. If nfsd is new enough, it will call us
* once with a structure that specifies how many threads to
* use.
*/
@@ -522,7 +520,7 @@ nfssvc_nfsd(struct thread *td, struct nf
nfsrv_pool->sp_minthreads = 4;
nfsrv_pool->sp_maxthreads = 4;
}
-
+
svc_run(nfsrv_pool);
#ifdef KGSSAPI
@@ -541,7 +539,7 @@ nfssvc_nfsd(struct thread *td, struct nf
/*
* Size the NFS server's duplicate request cache at 1/2 the
- * nmbclusters, floating within a (64, 2048) range. This is to
+ * nmbclusters, floating within a (64, 2048) range. This is to
* prevent all mbuf clusters being tied up in the NFS dupreq
* cache for small values of nmbclusters.
*/
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