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authorJ. Bruce Fields <bfields@citi.umich.edu>2007-11-12 17:32:21 -0500
committerJ. Bruce Fields <bfields@citi.umich.edu>2008-02-01 16:42:04 -0500
commite331f606a85a2a9e84e9c63c94d43c0517136139 (patch)
tree988f2d450ee49279f7abbce2fdd27801ca24904b
parent440bcc592052e42c7050a51489c65e18df4a0636 (diff)
nfsd: fail init on /proc/fs/nfs/exports creation failure
I assume the reason failure of creation was ignored here was just to continue support embedded systems that want nfsd but not proc. However, in cases where proc is supported it would be clearer to fail entirely than to come up with some features disabled. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
-rw-r--r--fs/nfsd/nfsctl.c37
1 files changed, 28 insertions, 9 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 2bfda9b8f50..2b95597aa4a 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -674,6 +674,27 @@ static struct file_system_type nfsd_fs_type = {
.kill_sb = kill_litter_super,
};
+#ifdef CONFIG_PROC_FS
+static int create_proc_exports_entry(void)
+{
+ struct proc_dir_entry *entry;
+
+ entry = proc_mkdir("fs/nfs", NULL);
+ if (!entry)
+ return -ENOMEM;
+ entry = create_proc_entry("fs/nfs/exports", 0, NULL);
+ if (!entry)
+ return -ENOMEM;
+ entry->proc_fops = &exports_operations;
+ return 0;
+}
+#else /* CONFIG_PROC_FS */
+static int create_proc_exports_entry(void)
+{
+ return 0;
+}
+#endif
+
static int __init init_nfsd(void)
{
int retval;
@@ -689,23 +710,21 @@ static int __init init_nfsd(void)
nfsd_export_init(); /* Exports table */
nfsd_lockd_init(); /* lockd->nfsd callbacks */
nfsd_idmap_init(); /* Name to ID mapping */
- if (proc_mkdir("fs/nfs", NULL)) {
- struct proc_dir_entry *entry;
- entry = create_proc_entry("fs/nfs/exports", 0, NULL);
- if (entry)
- entry->proc_fops = &exports_operations;
- }
+ retval = create_proc_exports_entry();
+ if (retval)
+ goto out_free_idmap;
retval = register_filesystem(&nfsd_fs_type);
if (retval)
goto out_free_all;
return 0;
out_free_all:
- nfsd_idmap_shutdown();
- nfsd_export_shutdown();
- nfsd_reply_cache_shutdown();
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
+ nfsd_idmap_shutdown();
+out_free_idmap:
nfsd_lockd_shutdown();
+ nfsd_export_shutdown();
+ nfsd_reply_cache_shutdown();
out_free_stat:
nfsd_stat_shutdown();
nfsd4_free_slabs();