LU-8066 libcfs: call kernel_param_unlock on error

[fs/lustre-release.git] / libcfs / libcfs / libcfs_string.c

diff --git a/libcfs/libcfs/libcfs_string.c b/libcfs/libcfs/libcfs_string.c
index 2a3009f..04e1dd5 100644 (file)
--- a/libcfs/libcfs/libcfs_string.c
+++ b/libcfs/libcfs/libcfs_string.c
@@ -15,11 +15,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * GPL HEADER END
  */
@@ -27,7 +23,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -284,7 +280,7 @@ EXPORT_SYMBOL(cfs_str2num_check);
  * \retval 0 will be returned if it can be parsed, otherwise -EINVAL or
  * -ENOMEM will be returned.
  */
-int
+static int
 cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
                     int bracketed, struct cfs_range_expr **expr)
 {
@@ -347,7 +343,6 @@ cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
        LIBCFS_FREE(re, sizeof(*re));
        return -EINVAL;
 }
-EXPORT_SYMBOL(cfs_range_expr_parse);
 
 /**
  * Print the range expression \a re into specified \a buffer.
@@ -485,6 +480,16 @@ cfs_expr_list_values(struct cfs_expr_list *expr_list, int max, __u32 **valpp)
 }
 EXPORT_SYMBOL(cfs_expr_list_values);
 
+void
+cfs_expr_list_values_free(__u32 *values, int num)
+{
+       /* This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed
+        * by OBD_FREE() if it's called by module other than libcfs & LNet,
+        * otherwise we will see fake memory leak */
+       LIBCFS_FREE(values, num * sizeof(values[0]));
+}
+EXPORT_SYMBOL(cfs_expr_list_values_free);
+
 /**
  * Frees cfs_range_expr structures of \a expr_list.
  *
@@ -589,65 +594,3 @@ cfs_expr_list_free_list(struct list_head *list)
        }
 }
 EXPORT_SYMBOL(cfs_expr_list_free_list);
-
-int
-cfs_ip_addr_parse(char *str, int len, struct list_head *list)
-{
-       struct cfs_expr_list    *el;
-       struct cfs_lstr         src;
-       int                     rc;
-       int                     i;
-
-       src.ls_str = str;
-       src.ls_len = len;
-       i = 0;
-
-       while (src.ls_str != NULL) {
-               struct cfs_lstr res;
-
-               if (!cfs_gettok(&src, '.', &res)) {
-                       rc = -EINVAL;
-                       goto out;
-               }
-
-               rc = cfs_expr_list_parse(res.ls_str, res.ls_len, 0, 255, &el);
-               if (rc != 0)
-                       goto out;
-
-               list_add_tail(&el->el_link, list);
-               i++;
-       }
-
-       if (i == 4)
-               return 0;
-
-       rc = -EINVAL;
- out:
-       cfs_expr_list_free_list(list);
-
-       return rc;
-}
-EXPORT_SYMBOL(cfs_ip_addr_parse);
-
-/**
- * Matches address (\a addr) against address set encoded in \a list.
- *
- * \retval 1 if \a addr matches
- * \retval 0 otherwise
- */
-int
-cfs_ip_addr_match(__u32 addr, struct list_head *list)
-{
-       struct cfs_expr_list *el;
-       int i = 0;
-
-       list_for_each_entry_reverse(el, list, el_link) {
-               if (!cfs_expr_list_match(addr & 0xff, el))
-                       return 0;
-               addr >>= 8;
-               i++;
-       }
-
-       return i == 4;
-}
-EXPORT_SYMBOL(cfs_ip_addr_match);