Commit b67bfe0d authored by Sasha Levin's avatar Sasha Levin Committed by Linus Torvalds

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: default avatarPeter Senna Tschudin <peter.senna@gmail.com>
Acked-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: default avatarSasha 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1e142b29
......@@ -395,7 +395,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
......@@ -415,7 +415,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -442,7 +442,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
kretprobe_assert(ri, orig_ret_address, trampoline_address);
kretprobe_hash_unlock(current, &flags);
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -423,7 +423,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =
((struct fnptr *)kretprobe_trampoline)->ip;
......@@ -444,7 +444,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -461,7 +461,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
regs->cr_iip = orig_ret_address;
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -487,7 +487,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
kretprobe_hash_unlock(current, &flags);
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -598,7 +598,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)kretprobe_trampoline;
......@@ -618,7 +618,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -645,7 +645,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
kretprobe_hash_unlock(current, &flags);
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -310,7 +310,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
......@@ -330,7 +330,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -357,7 +357,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
kretprobe_hash_unlock(current, &flags);
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -124,7 +124,6 @@ static void kvmppc_mmu_pte_flush_all(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
struct hpte_cache *pte;
struct hlist_node *node;
int i;
rcu_read_lock();
......@@ -132,7 +131,7 @@ static void kvmppc_mmu_pte_flush_all(struct kvm_vcpu *vcpu)
for (i = 0; i < HPTEG_HASH_NUM_VPTE_LONG; i++) {
struct hlist_head *list = &vcpu3s->hpte_hash_vpte_long[i];
hlist_for_each_entry_rcu(pte, node, list, list_vpte_long)
hlist_for_each_entry_rcu(pte, list, list_vpte_long)
invalidate_pte(vcpu, pte);
}
......@@ -143,7 +142,6 @@ static void kvmppc_mmu_pte_flush_page(struct kvm_vcpu *vcpu, ulong guest_ea)
{
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
struct hlist_head *list;
struct hlist_node *node;
struct hpte_cache *pte;
/* Find the list of entries in the map */
......@@ -152,7 +150,7 @@ static void kvmppc_mmu_pte_flush_page(struct kvm_vcpu *vcpu, ulong guest_ea)
rcu_read_lock();
/* Check the list for matching entries and invalidate */
hlist_for_each_entry_rcu(pte, node, list, list_pte)
hlist_for_each_entry_rcu(pte, list, list_pte)
if ((pte->pte.eaddr & ~0xfffUL) == guest_ea)
invalidate_pte(vcpu, pte);
......@@ -163,7 +161,6 @@ static void kvmppc_mmu_pte_flush_long(struct kvm_vcpu *vcpu, ulong guest_ea)
{
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
struct hlist_head *list;
struct hlist_node *node;
struct hpte_cache *pte;
/* Find the list of entries in the map */
......@@ -173,7 +170,7 @@ static void kvmppc_mmu_pte_flush_long(struct kvm_vcpu *vcpu, ulong guest_ea)
rcu_read_lock();
/* Check the list for matching entries and invalidate */
hlist_for_each_entry_rcu(pte, node, list, list_pte_long)
hlist_for_each_entry_rcu(pte, list, list_pte_long)
if ((pte->pte.eaddr & 0x0ffff000UL) == guest_ea)
invalidate_pte(vcpu, pte);
......@@ -207,7 +204,6 @@ static void kvmppc_mmu_pte_vflush_short(struct kvm_vcpu *vcpu, u64 guest_vp)
{
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
struct hlist_head *list;
struct hlist_node *node;
struct hpte_cache *pte;
u64 vp_mask = 0xfffffffffULL;
......@@ -216,7 +212,7 @@ static void kvmppc_mmu_pte_vflush_short(struct kvm_vcpu *vcpu, u64 guest_vp)
rcu_read_lock();
/* Check the list for matching entries and invalidate */
hlist_for_each_entry_rcu(pte, node, list, list_vpte)
hlist_for_each_entry_rcu(pte, list, list_vpte)
if ((pte->pte.vpage & vp_mask) == guest_vp)
invalidate_pte(vcpu, pte);
......@@ -228,7 +224,6 @@ static void kvmppc_mmu_pte_vflush_long(struct kvm_vcpu *vcpu, u64 guest_vp)
{
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
struct hlist_head *list;
struct hlist_node *node;
struct hpte_cache *pte;
u64 vp_mask = 0xffffff000ULL;
......@@ -238,7 +233,7 @@ static void kvmppc_mmu_pte_vflush_long(struct kvm_vcpu *vcpu, u64 guest_vp)
rcu_read_lock();
/* Check the list for matching entries and invalidate */
hlist_for_each_entry_rcu(pte, node, list, list_vpte_long)
hlist_for_each_entry_rcu(pte, list, list_vpte_long)
if ((pte->pte.vpage & vp_mask) == guest_vp)
invalidate_pte(vcpu, pte);
......@@ -266,7 +261,6 @@ void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 guest_vp, u64 vp_mask)
void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end)
{
struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
struct hlist_node *node;
struct hpte_cache *pte;
int i;
......@@ -277,7 +271,7 @@ void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end)
for (i = 0; i < HPTEG_HASH_NUM_VPTE_LONG; i++) {
struct hlist_head *list = &vcpu3s->hpte_hash_vpte_long[i];
hlist_for_each_entry_rcu(pte, node, list, list_vpte_long)
hlist_for_each_entry_rcu(pte, list, list_vpte_long)
if ((pte->pte.raddr >= pa_start) &&
(pte->pte.raddr < pa_end))
invalidate_pte(vcpu, pte);
......
......@@ -354,7 +354,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
{
struct kretprobe_instance *ri;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address;
unsigned long trampoline_address;
kprobe_opcode_t *correct_ret_addr;
......@@ -379,7 +379,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
orig_ret_address = 0;
correct_ret_addr = NULL;
trampoline_address = (unsigned long) &kretprobe_trampoline;
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -398,7 +398,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
kretprobe_assert(ri, orig_ret_address, trampoline_address);
correct_ret_addr = ri->ret_addr;
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -427,7 +427,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
kretprobe_hash_unlock(current, &flags);
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -25,10 +25,9 @@ static DEFINE_SPINLOCK(msi_map_lock);
struct msi_desc *__irq_get_msi_desc(unsigned int irq)
{
struct hlist_node *entry;
struct msi_map *map;
hlist_for_each_entry_rcu(map, entry,
hlist_for_each_entry_rcu(map,
&msi_hash[msi_hashfn(irq)], msi_chain)
if (map->irq == irq)
return map->msi;
......
......@@ -310,7 +310,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
......@@ -330,7 +330,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -360,7 +360,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -511,7 +511,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline;
......@@ -531,7 +531,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
* real return address, and all the rest will point to
* kretprobe_trampoline
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -559,7 +559,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
kretprobe_hash_unlock(current, &flags);
preempt_enable_no_resched();
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -953,9 +953,8 @@ static HLIST_HEAD(ldc_channel_list);
static int __ldc_channel_exists(unsigned long id)
{
struct ldc_channel *lp;
struct hlist_node *n;
hlist_for_each_entry(lp, n, &ldc_channel_list, list) {
hlist_for_each_entry(lp, &ldc_channel_list, list) {
if (lp->id == id)
return 1;
}
......
......@@ -652,7 +652,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
struct hlist_node *node, *tmp;
struct hlist_node *tmp;
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
kprobe_opcode_t *correct_ret_addr = NULL;
......@@ -682,7 +682,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
* will be the real return address, and all the rest will
* point to kretprobe_trampoline.
*/
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -701,7 +701,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
kretprobe_assert(ri, orig_ret_address, trampoline_address);
correct_ret_addr = ri->ret_addr;
hlist_for_each_entry_safe(ri, node, tmp, head, hlist) {
hlist_for_each_entry_safe(ri, tmp, head, hlist) {
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
......@@ -728,7 +728,7 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
kretprobe_hash_unlock(current, &flags);
hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) {
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
}
......
......@@ -1644,13 +1644,13 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp,
static void kvm_mmu_commit_zap_page(struct kvm *kvm,
struct list_head *invalid_list);
#define for_each_gfn_sp(kvm, sp, gfn, pos) \
hlist_for_each_entry(sp, pos, \
#define for_each_gfn_sp(kvm, sp, gfn) \
hlist_for_each_entry(sp, \
&(kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)], hash_link) \
if ((sp)->gfn != (gfn)) {} else
#define for_each_gfn_indirect_valid_sp(kvm, sp, gfn, pos) \
hlist_for_each_entry(sp, pos, \
#define for_each_gfn_indirect_valid_sp(kvm, sp, gfn) \
hlist_for_each_entry(sp, \
&(kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)], hash_link) \
if ((sp)->gfn != (gfn) || (sp)->role.direct || \
(sp)->role.invalid) {} else
......@@ -1706,11 +1706,10 @@ static int kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
static void kvm_sync_pages(struct kvm_vcpu *vcpu, gfn_t gfn)
{
struct kvm_mmu_page *s;
struct hlist_node *node;
LIST_HEAD(invalid_list);
bool flush = false;
for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn, node) {
for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn) {
if (!s->unsync)
continue;
......@@ -1848,7 +1847,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
union kvm_mmu_page_role role;
unsigned quadrant;
struct kvm_mmu_page *sp;
struct hlist_node *node;
bool need_sync = false;
role = vcpu->arch.mmu.base_role;
......@@ -1863,7 +1861,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
quadrant &= (1 << ((PT32_PT_BITS - PT64_PT_BITS) * level)) - 1;
role.quadrant = quadrant;
}
for_each_gfn_sp(vcpu->kvm, sp, gfn, node) {
for_each_gfn_sp(vcpu->kvm, sp, gfn) {
if (!need_sync && sp->unsync)
need_sync = true;
......@@ -2151,14 +2149,13 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int goal_nr_mmu_pages)
int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
{
struct kvm_mmu_page *sp;
struct hlist_node *node;
LIST_HEAD(invalid_list);
int r;
pgprintk("%s: looking for gfn %llx\n", __func__, gfn);
r = 0;
spin_lock(&kvm->mmu_lock);
for_each_gfn_indirect_valid_sp(kvm, sp, gfn, node) {
for_each_gfn_indirect_valid_sp(kvm, sp, gfn) {
pgprintk("%s: gfn %llx role %x\n", __func__, gfn,
sp->role.word);
r = 1;
......@@ -2288,9 +2285,8 @@ static void __kvm_unsync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
static void kvm_unsync_pages(struct kvm_vcpu *vcpu, gfn_t gfn)
{
struct kvm_mmu_page *s;
struct hlist_node *node;
for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn, node) {
for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn) {
if (s->unsync)
continue;
WARN_ON(s->role.level != PT_PAGE_TABLE_LEVEL);
......@@ -2302,10 +2298,9 @@ static int mmu_need_write_protect(struct kvm_vcpu *vcpu, gfn_t gfn,
bool can_unsync)
{
struct kvm_mmu_page *s;
struct hlist_node *node;
bool need_unsync = false;
for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn, node) {
for_each_gfn_indirect_valid_sp(vcpu->kvm, s, gfn) {
if (!can_unsync)
return 1;
......@@ -3933,7 +3928,6 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
gfn_t gfn = gpa >> PAGE_SHIFT;
union kvm_mmu_page_role mask = { .word = 0 };
struct kvm_mmu_page *sp;
struct hlist_node *node;
LIST_HEAD(invalid_list);
u64 entry, gentry, *spte;
int npte;
......@@ -3964,7 +3958,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
mask.cr0_wp = mask.cr4_pae = mask.nxe = 1;
for_each_gfn_indirect_valid_sp(vcpu->kvm, sp, gfn, node) {
for_each_gfn_indirect_valid_sp(vcpu->kvm, sp, gfn) {
if (detect_write_misaligned(sp, gpa, bytes) ||
detect_write_flooding(sp)) {
zap_page |= !!kvm_mmu_prepare_zap_page(vcpu->kvm, sp,
......
......@@ -357,7 +357,6 @@ static int blkcg_reset_stats(struct cgroup *cgroup, struct cftype *cftype,
{
struct blkcg *blkcg = cgroup_to_blkcg(cgroup);
struct blkcg_gq *blkg;
struct hlist_node *n;
int i;
mutex_lock(&blkcg_pol_mutex);
......@@ -368,7 +367,7 @@ static int blkcg_reset_stats(struct cgroup *cgroup, struct cftype *cftype,
* stat updates. This is a debug feature which shouldn't exist
* anyway. If you get hit by a race, retry.
*/
hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
hlist_for_each_entry(blkg, &blkcg->blkg_list, blkcg_node) {
for (i = 0; i < BLKCG_MAX_POLS; i++) {
struct blkcg_policy *pol = blkcg_policy[i];
......@@ -415,11 +414,10 @@ void blkcg_print_blkgs(struct seq_file *sf, struct blkcg *blkcg,
bool show_total)
{
struct blkcg_gq *blkg;
struct hlist_node *n;
u64 total = 0;
spin_lock_irq(&blkcg->lock);
hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node)
hlist_for_each_entry(blkg, &blkcg->blkg_list, blkcg_node)
if (blkcg_policy_enabled(blkg->q, pol))
total += prfill(sf, blkg->pd[pol->plid], data);
spin_unlock_irq(&blkcg->lock);
......
......@@ -164,7 +164,6 @@ EXPORT_SYMBOL(put_io_context);
*/
void put_io_context_active(struct io_context *ioc)
{
struct hlist_node *n;
unsigned long flags;
struct io_cq *icq;
......@@ -180,7 +179,7 @@ void put_io_context_active(struct io_context *ioc)
*/
retry:
spin_lock_irqsave_nested(&ioc->lock, flags, 1);
hlist_for_each_entry(icq, n, &ioc->icq_list, ioc_node) {
hlist_for_each_entry(icq, &ioc->icq_list, ioc_node) {
if (icq->flags & ICQ_EXITED)
continue;
if (spin_trylock(icq->q->queue_lock)) {
......
......@@ -800,11 +800,10 @@ static struct bsg_device *bsg_add_device(struct inode *inode,
static struct bsg_device *__bsg_get_device(int minor, struct request_queue *q)
{
struct bsg_device *bd;
struct hlist_node *entry;
mutex_lock(&bsg_mutex);
hlist_for_each_entry(bd, entry, bsg_dev_idx_hash(minor), dev_list) {
hlist_for_each_entry(bd, bsg_dev_idx_hash(minor), dev_list) {
if (bd->queue == q) {
atomic_inc(&bd->ref_count);
goto found;
......
......@@ -1435,7 +1435,6 @@ static int cfq_set_weight(struct cgroup *cgrp, struct cftype *cft, u64 val)
{
struct blkcg *blkcg = cgroup_to_blkcg(cgrp);
struct blkcg_gq *blkg;
struct hlist_node *n;
if (val < CFQ_WEIGHT_MIN || val > CFQ_WEIGHT_MAX)
return -EINVAL;
......@@ -1443,7 +1442,7 @@ static int cfq_set_weight(struct cgroup *cgrp, struct cftype *cft, u64 val)
spin_lock_irq(&blkcg->lock);
blkcg->cfq_weight = (unsigned int)val;
hlist_for_each_entry(blkg, n, &blkcg->blkg_list, blkcg_node) {
hlist_for_each_entry(blkg, &blkcg->blkg_list, blkcg_node) {
struct cfq_group *cfqg = blkg_to_cfqg(blkg);
if (cfqg && !cfqg->dev_weight)
......
......@@ -288,10 +288,10 @@ static struct request *elv_rqhash_find(struct request_queue *q, sector_t offset)
{
struct elevator_queue *e = q->elevator;
struct hlist_head *hash_list = &e->hash[ELV_HASH_FN(offset)];
struct hlist_node *entry, *next;
struct hlist_node *next;
struct request *rq;
hlist_for_each_entry_safe(rq, entry, next, hash_list, hash) {
hlist_for_each_entry_safe(rq, next, hash_list, hash) {
BUG_ON(!ELV_ON_HASH(rq));
if (unlikely(!rq_mergeable(rq))) {
......
......@@ -447,7 +447,7 @@ EXPORT_SYMBOL_GPL(crypto_register_template);
void crypto_unregister_template(struct crypto_template *tmpl)
{
struct crypto_instance *inst;
struct hlist_node *p, *n;
struct hlist_node *n;
struct hlist_head *list;
LIST_HEAD(users);
......@@ -457,7 +457,7 @@ void crypto_unregister_template(struct crypto_template *tmpl)
list_del_init(&tmpl->list);
list = &tmpl->instances;
hlist_for_each_entry(inst, p, list, list) {
hlist_for_each_entry(inst, list, list) {
int err = crypto_remove_alg(&inst->alg, &users);
BUG_ON(err);
}
......@@ -466,7 +466,7 @@ void crypto_unregister_template(struct crypto_template *tmpl)
up_write(&crypto_alg_sem);
hlist_for_each_entry_safe(inst, p, n, list, list) {
hlist_for_each_entry_safe(inst, n, list, list) {
BUG_ON(atomic_read(&inst->alg.cra_refcnt) != 1);
tmpl->free(inst);
}
......
......@@ -157,7 +157,6 @@ static int atmtcp_v_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
{
struct atm_cirange ci;
struct atm_vcc *vcc;
struct hlist_node *node;
struct sock *s;
int i;
......@@ -171,7 +170,7 @@ static int atmtcp_v_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
for(i = 0; i < VCC_HTABLE_SIZE; ++i) {
struct hlist_head *head = &vcc_hash[i];
sk_for_each(s, node, head) {
sk_for_each(s, head) {
vcc = atm_sk(s);
if (vcc->dev != dev)
continue;
......@@ -264,12 +263,11 @@ static struct atm_vcc *find_vcc(struct atm_dev *dev, short vpi, int vci)
{
struct hlist_head *head;
struct atm_vcc *vcc;
struct hlist_node *node;
struct sock *s;
head = &vcc_hash[vci & (VCC_HTABLE_SIZE -1)];
sk_for_each(s, node, head) {
sk_for_each(s, head) {
vcc = atm_sk(s);
if (vcc->dev == dev &&
vcc->vci == vci && vcc->vpi == vpi &&
......
......@@ -2093,7 +2093,6 @@ static unsigned char eni_phy_get(struct atm_dev *dev,unsigned long addr)
static int eni_proc_read(struct atm_dev *dev,loff_t *pos,char *page)
{
struct hlist_node *node;
struct sock *s;
static const char *signal[] = { "LOST","unknown","okay" };
struct eni_dev *eni_dev = ENI_DEV(dev);
......@@ -2171,7 +2170,7 @@ static int eni_proc_read(struct atm_dev *dev,loff_t *pos,char *page)
for(i = 0; i < VCC_HTABLE_SIZE; ++i) {
struct hlist_head *head = &vcc_hash[i];
sk_for_each(s, node, head) {
sk_for_each(s, head) {
struct eni_vcc *eni_vcc;
int length;
......
......@@ -329,7 +329,6 @@ __find_vcc(struct he_dev *he_dev, unsigned cid)
{
struct hlist_head *head;
struct atm_vcc *vcc;
struct hlist_node *node;
struct sock *s;
short vpi;
int vci;
......@@ -338,7 +337,7 @@ __find_vcc(struct he_dev *he_dev, unsigned cid)