To move the list iterator variable into the list_for_each_entry_*()
macro in the future it should be avoided to use the list iterator
variable after the loop body.
To *never* use the list iterator variable after the loop it was
concluded to use a separate iterator variable [1].
Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@mail.gmail.com/
Signed-off-by: Jakob Koschel <[email protected]>
---
fs/ocfs2/dlm/dlmdebug.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index d442cf5dda8a..be5e9ed7da8d 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -541,7 +541,7 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
struct debug_lockres *dl = m->private;
struct dlm_ctxt *dlm = dl->dl_ctxt;
struct dlm_lock_resource *oldres = dl->dl_res;
- struct dlm_lock_resource *res = NULL;
+ struct dlm_lock_resource *res = NULL, *iter;
struct list_head *track_list;
spin_lock(&dlm->track_lock);
@@ -556,11 +556,11 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
}
}
- list_for_each_entry(res, track_list, tracking) {
- if (&res->tracking == &dlm->tracking_list)
- res = NULL;
- else
- dlm_lockres_get(res);
+ list_for_each_entry(iter, track_list, tracking) {
+ if (&iter->tracking != &dlm->tracking_list) {
+ dlm_lockres_get(iter);
+ res = iter;
+ }
break;
}
spin_unlock(&dlm->track_lock);
base-commit: f443e374ae131c168a065ea1748feac6b2e76613
--
2.25.1