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staging: lustre: obdclass: Use list_for_each_entry_safe 

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.

This was done with Coccinelle.

@@
expression E1;
identifier I1, I2;
type T;
iterator name list_for_each_entry_safe;
@@

T *I1;
+ T *tmp;
...
- while (list_empty(&E1) == 0)
+ list_for_each_entry_safe (I1, tmp, &E1, I2)
{
...when != T *I1;
- I1 = list_entry(E1.next, T, I2);
...
}

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhaktipriya Shridhar 2016-03-12 01:29:21 +05:30 committed by Greg Kroah-Hartman
parent 09971adc33
commit 6069f756d4
1 changed files with 2 additions and 3 deletions
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5
drivers/staging/lustre/lustre/obdclass/lustre_peer.c
View File

@ -150,6 +150,7 @@ int class_del_uuid(const char *uuid)
{ {
LIST_HEAD(deathrow); LIST_HEAD(deathrow);
struct uuid_nid_data *data; struct uuid_nid_data *data;
struct uuid_nid_data *temp;
spin_lock(&g_uuid_lock); spin_lock(&g_uuid_lock);
if (uuid) { if (uuid) {
@ -171,9 +172,7 @@ int class_del_uuid(const char *uuid)
return -EINVAL; return -EINVAL;
} }
while (!list_empty(&deathrow)) { list_for_each_entry_safe(data, temp, &deathrow, un_list) {
data = list_entry(deathrow.next, struct uuid_nid_data,
un_list);
list_del(&data->un_list); list_del(&data->un_list);
CDEBUG(D_INFO, "del uuid %s %s/%d\n", CDEBUG(D_INFO, "del uuid %s %s/%d\n",