nfsd: only register cld pipe notifier when CONFIG_NFSD_V4 is enabled
authorJeff Layton <jlayton@redhat.com>
Thu, 29 Mar 2012 11:52:49 +0000 (07:52 -0400)
committerJ. Bruce Fields <bfields@redhat.com>
Thu, 29 Mar 2012 12:01:07 +0000 (08:01 -0400)
commit797a9d797f8483bb67f265c761b76dcd5a077a23
treebc114410d0b6f7cc596d1ef8e2905fab00bf321b
parent4ca1f872cda31fe1cfe5e90e027f7bef4980364c
nfsd: only register cld pipe notifier when CONFIG_NFSD_V4 is enabled

Otherwise, we get a warning or error similar to this when building with
CONFIG_NFSD_V4 disabled:

    ERROR: "nfsd4_cld_block" [fs/nfsd/nfsd.ko] undefined!

Fix this by wrapping the calls to rpc_pipefs_notifier_register and
..._unregister in another function and providing no-op replacements
when CONFIG_NFSD_V4 is disabled.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
fs/nfsd/netns.h
fs/nfsd/nfs4recover.c
fs/nfsd/nfsctl.c
fs/nfsd/nfsd.h