From 4a3ae42dc312dbdffee803efaf393421b79f997a Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 2 Oct 2006 02:17:53 -0700 Subject: [PATCH] knfsd: Correctly handle error condition from lockd_up If lockd_up fails - what should we expect? Do we have to later call lockd_down? Well the nfs client thinks "no", the nfs server thinks "yes". lockd thinks "yes". The only answer that really makes sense is "no" !! So: Make lockd_up only increment nlmsvc_users on success. Make nfsd handle errors from lockd_up properly. Make sure lockd_up(0) never fails when lockd is running so that the 'reclaimer' call to lockd_up doesn't need to be error checked. Cc: "J. Bruce Fields" Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nfsd/nfssvc.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'fs/nfsd/nfssvc.c') diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index f1314c63e823..cdec3993e0d5 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -221,18 +221,22 @@ static int nfsd_init_socks(int port) if (!list_empty(&nfsd_serv->sv_permsocks)) return 0; - error = svc_makesock(nfsd_serv, IPPROTO_UDP, port); - if (error < 0) - return error; error = lockd_up(IPPROTO_UDP); + if (error >= 0) { + error = svc_makesock(nfsd_serv, IPPROTO_UDP, port); + if (error < 0) + lockd_down(); + } if (error < 0) return error; #ifdef CONFIG_NFSD_TCP - error = svc_makesock(nfsd_serv, IPPROTO_TCP, port); - if (error < 0) - return error; error = lockd_up(IPPROTO_TCP); + if (error >= 0) { + error = svc_makesock(nfsd_serv, IPPROTO_TCP, port); + if (error < 0) + lockd_down(); + } if (error < 0) return error; #endif -- cgit v1.2.2