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authorRyusei Yamaguchi <mandel59@gmail.com>2009-08-15 19:54:41 +0400
committerJ. Bruce Fields <bfields@citi.umich.edu>2009-08-25 20:39:37 +0400
commited2d8aed52212610d4cb79be3cbf535b04be38dc (patch)
tree6baac65cfa094ac79db8a473ad7bd4b1dbbc5c2a /net/sunrpc
parent55bb55dca0cecac2fb7b8c743db41361c011c8a8 (diff)
downloadlinux-ed2d8aed52212610d4cb79be3cbf535b04be38dc.tar.xz
knfsd: Replace lock_kernel with a mutex in nfsd pool stats.
lock_kernel() in knfsd was replaced with a mutex. The later commit 03cf6c9f49a8fea953d38648d016e3f46e814991 ("knfsd: add file to export stats about nfsd pools") did not follow that change. This patch fixes the issue. Also move the get and put of nfsd_serv to the open and close methods (instead of start and stop methods) to allow atomic check and increment of reference count in the open method (where we can still return an error). Signed-off-by: Ryusei Yamaguchi <mandel59@gmail.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Greg Banks <gnb@fmeh.org> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/svc_xprt.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 27d44332f017..dcd2d1ee2e3c 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -1166,11 +1166,6 @@ static void *svc_pool_stats_start(struct seq_file *m, loff_t *pos)
dprintk("svc_pool_stats_start, *pidx=%u\n", pidx);
- lock_kernel();
- /* bump up the pseudo refcount while traversing */
- svc_get(serv);
- unlock_kernel();
-
if (!pidx)
return SEQ_START_TOKEN;
return (pidx > serv->sv_nrpools ? NULL : &serv->sv_pools[pidx-1]);
@@ -1198,12 +1193,6 @@ static void *svc_pool_stats_next(struct seq_file *m, void *p, loff_t *pos)
static void svc_pool_stats_stop(struct seq_file *m, void *p)
{
- struct svc_serv *serv = m->private;
-
- lock_kernel();
- /* this function really, really should have been called svc_put() */
- svc_destroy(serv);
- unlock_kernel();
}
static int svc_pool_stats_show(struct seq_file *m, void *p)