WSL2-Linux-Kernel/net/sched
Sasha Levin b67bfe0d42 hlist: drop the node parameter from iterators
I'm not sure why, but the hlist for each entry iterators were conceived

        list_for_each_entry(pos, head, member)

The hlist ones were greedy and wanted an extra parameter:

        hlist_for_each_entry(tpos, pos, head, member)

Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.

Besides the semantic patch, there was some manual work required:

 - Fix up the actual hlist iterators in linux/list.h
 - Fix up the declaration of other iterators based on the hlist ones.
 - A very small amount of places were using the 'node' parameter, this
 was modified to use 'obj->member' instead.
 - Coccinelle didn't handle the hlist_for_each_entry_safe iterator
 properly, so those had to be fixed up manually.

The semantic patch which is mostly the work of Peter Senna Tschudin is here:

@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;

type T;
expression a,c,d,e;
identifier b;
statement S;
@@

-T b;
    <+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
    ...+>

[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-27 19:10:24 -08:00
..
Kconfig net: sched: enable CAN Identifier to be build into kernel 2012-11-25 16:06:06 -05:00
Makefile net: sched: add ipset ematch 2012-07-12 07:54:46 -07:00
act_api.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_csum.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_gact.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_ipt.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
act_mirred.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_nat.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_pedit.c net: Add skb_unclone() helper function. 2013-02-15 15:10:37 -05:00
act_police.c act_police: improved accuracy at high rates 2013-02-12 18:59:45 -05:00
act_simple.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
act_skbedit.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_api.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_basic.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_cgroup.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_flow.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_fw.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_route.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_rsvp.c [NET_SCHED]: Remove unnecessary includes 2007-07-10 22:16:41 -07:00
cls_rsvp.h pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_rsvp6.c [NET_SCHED]: Remove unnecessary includes 2007-07-10 22:16:41 -07:00
cls_tcindex.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
cls_u32.c pkt_sched: namespace aware act_mirred 2013-01-14 15:09:36 -05:00
em_canid.c net: em_canid: Ematch rule to match CAN frames according to their identifiers 2012-07-04 13:07:05 +02:00
em_cmp.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_ipset.c net: sched: add ipset ematch 2012-07-12 07:54:46 -07:00
em_meta.c net: use a per task frag allocator 2012-09-24 16:31:37 -04:00
em_nbyte.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_text.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
em_u32.c net_sched: cleanups 2011-01-19 23:31:12 -08:00
ematch.c net: Convert net_ratelimit uses to net_<level>_ratelimited 2012-05-15 13:45:03 -04:00
sch_api.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sch_atm.c sch_atm.c: get rid of poinless extern 2012-06-01 10:37:18 -04:00
sch_blackhole.c pkt_sched: Add qdisc->ops->peek() implementation. 2008-10-31 00:45:55 -07:00
sch_cbq.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sch_choke.c net: sched: factorize code (qdisc_drop()) 2012-05-04 11:50:05 -04:00
sch_codel.c fq_codel: should use qdisc backlog as threshold 2012-05-16 15:30:26 -04:00
sch_drr.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sch_dsmark.c net: sched: factorize code (qdisc_drop()) 2012-05-04 11:50:05 -04:00
sch_fifo.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_fq_codel.c fq_codel: dont reinit flow state 2012-09-03 14:36:50 -04:00
sch_generic.c sch: make htb_rate_cfg and functions around that generic 2013-02-12 18:59:45 -05:00
sch_gred.c net_sched: gred: actually perform idling in WRED mode 2012-09-13 16:10:13 -04:00
sch_hfsc.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sch_htb.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sch_ingress.c net_sched: factorize qdisc stats handling 2011-01-10 16:07:54 -08:00
sch_mq.c pkt_sched: avoid requeues if possible 2012-12-12 00:16:47 -05:00
sch_mqprio.c pkt_sched: avoid requeues if possible 2012-12-12 00:16:47 -05:00
sch_multiq.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_netem.c netem: fix delay calculation in rate extension 2013-01-29 15:43:02 -05:00
sch_plug.c net_sched: sch_plug: plug_qdisc_ops is static 2012-02-13 16:04:40 -05:00
sch_prio.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_qfq.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sch_red.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_sfb.c sch_sfb: Fix missing NULL check 2012-07-12 08:33:18 -07:00
sch_sfq.c pkt_sched: Stop using NLA_PUT*(). 2012-04-01 18:11:37 -04:00
sch_tbf.c tbf: improved accuracy at high rates 2013-02-12 18:59:45 -05:00
sch_teql.c sch_teql: Convert over to dev_neigh_lookup_skb(). 2012-07-05 01:09:06 -07:00