staging: lustre: o2iblnd: Use list_for_each_entry_safe in kiblnd_destroy_fmr_pool_list

Doubly linked lists which are iterated using list_empty
and list_entry macros have been replaced with list_for_each_entry_safe
macro. This makes the iteration simpler and more readable.

This patch replaces the while loop containing list_empty and list_entry
with list_for_each_entry_safe.

Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783
Reviewed-on: http://review.whamcloud.com/17606
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index 60647bc1b37cfaabb4603cb0e4e01940191bcdd2..4a4b68c1bb02de8d84296fa78ab038a7fc7dc758 100644 (file)
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -1313,10 +1313,9 @@ static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *fpo)
 
 static void kiblnd_destroy_fmr_pool_list(struct list_head *head)
 {
-       kib_fmr_pool_t *fpo;
+       kib_fmr_pool_t *fpo, *tmp;
 
-       while (!list_empty(head)) {
-               fpo = list_entry(head->next, kib_fmr_pool_t, fpo_list);
+       list_for_each_entry_safe(fpo, tmp, head, fpo_list) {
                list_del(&fpo->fpo_list);
                kiblnd_destroy_fmr_pool(fpo);
        }