Clean up.
A couple of years ago, a series of commits, finishing with commit
5680c446, swapped the order of the lockd_up() and svc_addsock() calls
in __write_ports(). At that time lockd_up() needed to know the
transport protocol of the passed-in socket to start a listener on the
same transport protocol.
These days, lockd_up() doesn't take a protocol argument; it always
starts both a UDP and TCP listener. It's now more straightforward to
try the lockd_up() first, then do a lockd_down() if the svc_addsock()
fails.
Careful review of this code shows that the svc_sock_names() call is
used only to close the just-opened socket in case lockd_up() fails.
So it is no longer needed if lockd_up() is done first.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
fs/nfsd/nfsctl.c | 19 ++++++++++---------
1 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index caf4fdc..e051847 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -939,17 +939,18 @@ static ssize_t __write_ports_addfd(char *buf)
if (err != 0)
return err;
- err = svc_addsock(nfsd_serv, fd, buf);
- if (err >= 0) {
- err = lockd_up();
- if (err < 0)
- svc_sock_names(buf + strlen(buf) + 1, nfsd_serv, buf);
+ err = lockd_up();
+ if (err != 0)
+ goto out;
- /* Decrease the count, but don't shut down the service */
- nfsd_serv->sv_nrthreads--;
- }
+ err = svc_addsock(nfsd_serv, fd, buf);
+ if (err < 0)
+ lockd_down();
- return err < 0 ? err : 0;
+out:
+ /* Decrease the count, but don't shut down the service */
+ nfsd_serv->sv_nrthreads--;
+ return err;
}
/*
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
