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authorJan Beulich <JBeulich@suse.com>2016-10-24 09:03:49 -0600
committerDavid Vrabel <david.vrabel@citrix.com>2016-10-24 16:08:04 +0100
commite1e5b3ff41983f506c3cbcf123fe7d682f61a8f1 (patch)
tree8c2ef836dd61dd49e72389e6f39e332141cec5bf /drivers/xen/xenbus/xenbus_dev_frontend.c
parentcb5f7e7c1ded5ff91b18116669c0f43c82bea3db (diff)
downloadlinux-e1e5b3ff41983f506c3cbcf123fe7d682f61a8f1.tar.bz2
xenbus: prefer list_for_each()
This is more efficient than list_for_each_safe() when list modification is accompanied by breaking out of the loop. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_dev_frontend.c')
-rw-r--r--drivers/xen/xenbus/xenbus_dev_frontend.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index 7487971f9f78..fe60b12de920 100644
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -364,7 +364,7 @@ out:
static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u)
{
- struct watch_adapter *watch, *tmp_watch;
+ struct watch_adapter *watch;
char *path, *token;
int err, rc;
LIST_HEAD(staging_q);
@@ -399,7 +399,7 @@ static int xenbus_write_watch(unsigned msg_type, struct xenbus_file_priv *u)
}
list_add(&watch->list, &u->watches);
} else {
- list_for_each_entry_safe(watch, tmp_watch, &u->watches, list) {
+ list_for_each_entry(watch, &u->watches, list) {
if (!strcmp(watch->token, token) &&
!strcmp(watch->watch.node, path)) {
unregister_xenbus_watch(&watch->watch);