diff options
| author | Jeff Layton <jlayton@redhat.com> | 2012-03-29 15:52:49 +0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-03-29 16:01:07 +0400 |
| commit | 797a9d797f8483bb67f265c761b76dcd5a077a23 (patch) | |
| tree | bc114410d0b6f7cc596d1ef8e2905fab00bf321b | |
| parent | 4ca1f872cda31fe1cfe5e90e027f7bef4980364c (diff) | |
| download | linux-797a9d797f8483bb67f265c761b76dcd5a077a23.tar.xz | |
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>
| -rw-r--r-- | fs/nfsd/netns.h | 1 | ||||
| -rw-r--r-- | fs/nfsd/nfs4recover.c | 12 | ||||
| -rw-r--r-- | fs/nfsd/nfsctl.c | 6 | ||||
| -rw-r--r-- | fs/nfsd/nfsd.h | 7 |
4 files changed, 21 insertions, 5 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 66eac332bf8d..12e0cff435b4 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -31,5 +31,4 @@ struct nfsd_net { }; extern int nfsd_net_id; -extern struct notifier_block nfsd4_cld_block; #endif /* __NFSD_NETNS_H__ */ diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index eaaf9482c7f5..4767429264a2 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -1032,3 +1032,15 @@ rpc_pipefs_event(struct notifier_block *nb, unsigned long event, void *ptr) struct notifier_block nfsd4_cld_block = { .notifier_call = rpc_pipefs_event, }; + +int +register_cld_notifier(void) +{ + return rpc_pipefs_notifier_register(&nfsd4_cld_block); +} + +void +unregister_cld_notifier(void) +{ + rpc_pipefs_notifier_unregister(&nfsd4_cld_block); +} diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index dee6c1bb9ba8..2c53be6d3579 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -1137,7 +1137,7 @@ static int __init init_nfsd(void) int retval; printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n"); - retval = rpc_pipefs_notifier_register(&nfsd4_cld_block); + retval = register_cld_notifier(); if (retval) return retval; retval = register_pernet_subsys(&nfsd_net_ops); @@ -1186,7 +1186,7 @@ out_free_slabs: out_unregister_pernet: unregister_pernet_subsys(&nfsd_net_ops); out_unregister_notifier: - rpc_pipefs_notifier_unregister(&nfsd4_cld_block); + unregister_cld_notifier(); return retval; } @@ -1203,7 +1203,7 @@ static void __exit exit_nfsd(void) nfsd_fault_inject_cleanup(); unregister_filesystem(&nfsd_fs_type); unregister_pernet_subsys(&nfsd_net_ops); - rpc_pipefs_notifier_unregister(&nfsd4_cld_block); + unregister_cld_notifier(); } MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>"); diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index 1d1e8589b4ce..1671429ffa66 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -364,12 +364,17 @@ static inline u32 nfsd_suppattrs2(u32 minorversion) NFSD_WRITEABLE_ATTRS_WORD2 extern int nfsd4_is_junction(struct dentry *dentry); -#else +extern int register_cld_notifier(void); +extern void unregister_cld_notifier(void); +#else /* CONFIG_NFSD_V4 */ static inline int nfsd4_is_junction(struct dentry *dentry) { return 0; } +#define register_cld_notifier() 0 +#define unregister_cld_notifier() do { } while(0) + #endif /* CONFIG_NFSD_V4 */ #endif /* LINUX_NFSD_NFSD_H */ |