nfsd4: simplify recovery dir setting

Move around some of this code, simplify a bit.

Reviewed-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 32 insertions, 4 deletions

diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 29d77f60585b..c3466610e6cd 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -45,6 +45,7 @@
 
 /* Globals */
 static struct file *rec_file;
+static char user_recovery_dirname[PATH_MAX] = "/var/lib/nfs/v4recovery";
 
 static int
 nfs4_save_creds(const struct cred **original_creds)
@@ -354,13 +355,13 @@ nfsd4_recdir_load(void) {
  */
 
 void
-nfsd4_init_recdir(char *rec_dirname)
+nfsd4_init_recdir()
 {
         const struct cred *original_cred;
         int status;
 
         printk("NFSD: Using %s as the NFSv4 state recovery directory\n",
-                        rec_dirname);
+                        user_recovery_dirname);
 
         BUG_ON(rec_file);
 
@@ -372,10 +373,10 @@ nfsd4_init_recdir(char *rec_dirname)
                 return;
         }
 
-        rec_file = filp_open(rec_dirname, O_RDONLY | O_DIRECTORY, 0);
+        rec_file = filp_open(user_recovery_dirname, O_RDONLY | O_DIRECTORY, 0);
         if (IS_ERR(rec_file)) {
                 printk("NFSD: unable to find recovery directory %s\n",
-                                rec_dirname);
+                                user_recovery_dirname);
                 rec_file = NULL;
         }
 
@@ -390,3 +391,30 @@ nfsd4_shutdown_recdir(void)
         fput(rec_file);
         rec_file = NULL;
 }
+
+/*
+ * Change the NFSv4 recovery directory to recdir.
+ */
+int
+nfs4_reset_recoverydir(char *recdir)
+{
+        int status;
+        struct path path;
+
+        status = kern_path(recdir, LOOKUP_FOLLOW, &path);
+        if (status)
+                return status;
+        status = -ENOTDIR;
+        if (S_ISDIR(path.dentry->d_inode->i_mode)) {
+                strcpy(user_recovery_dirname, recdir);
+                status = 0;
+        }
+        path_put(&path);
+        return status;
+}
+
+char *
+nfs4_recoverydir(void)
+{
+        return user_recovery_dirname;
+}