arch/alpha/kernel/smp.c

523

while ((ops = xchg(pending_ipis, 0)) != 0) {

arch/arc/kernel/smp.c

365

copy = pending = xchg(this_cpu_ptr(&ipi_data), 0);

arch/arm/kernel/dma.c

105

if (xchg(&dma->lock, 0) != 0) {

arch/arm/kernel/dma.c

62

if (xchg(&dma->lock, 1) != 0)

arch/arm/kernel/dma.c

74

xchg(&dma->lock, 0);

arch/arm/mach-rpc/ecard.c

278

req = xchg(&ecard_req, NULL);

arch/arm64/include/asm/xen/events.h

20

#define xchg_xen_ulong(ptr, val) xchg((ptr), (val))

arch/csky/kernel/smp.c

51

ops = xchg(&this_cpu_ptr(&ipi_data)->bits, 0);

arch/hexagon/kernel/smp.c

88

while ((ops = xchg(&ipi->bits, 0)) != 0)

arch/mips/kernel/rtlx.c

167

state = xchg(&chan->lx_state, RTLX_STATE_OPENED);

arch/mips/kernel/traps.c

2037

old_handler = xchg(&exception_handlers[n], handler);

arch/mips/kernel/vpe.c

770

state = xchg(&v->state, VPE_STATE_INUSE);

arch/mips/sibyte/common/sb_tbprof.c

258

if (xchg(&sbp.tb_enable, 1))

arch/mips/sibyte/common/sb_tbprof.c

397

if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED)

arch/powerpc/kernel/smp.c

322

all = xchg(&info->messages, 0);

arch/powerpc/kernel/watchdog.c

178

xchg(&__wd_nmi_output, 1);

arch/powerpc/kernel/watchdog.c

360

if (__wd_nmi_output && xchg(&__wd_nmi_output, 0)) {

arch/powerpc/kernel/watchdog.c

419

xchg(&__wd_nmi_output, 1); // see wd_lockup_ipi

arch/powerpc/kexec/crash.c

480

xchg(&kexec_crash_image, NULL);

arch/powerpc/kexec/crash.c

486

xchg(&kexec_crash_image, image);

arch/powerpc/kexec/crash.c

540

xchg(&kexec_crash_image, NULL);

arch/powerpc/kexec/crash.c

547

xchg(&kexec_crash_image, image);

arch/powerpc/kvm/book3s_hv.c

5307

buf[i] |= xchg(&p[i], 0);

arch/powerpc/platforms/powernv/pci-ioda-tce.c

174

oldtce = be64_to_cpu(xchg(ptce, cpu_to_be64(newtce)));

arch/riscv/include/asm/pgtable.h

1029

pmd_t pmd = __pmd(xchg(&pmdp->pmd, 0));

arch/riscv/include/asm/pgtable.h

1123

pud_t pud = __pud(xchg(&pudp->pud, 0));

arch/riscv/include/asm/pgtable.h

670

pte_t pte = __pte(xchg(&ptep->pte, 0));

arch/s390/include/asm/percpu.h

165

ret__ = xchg(ptr__, nval); \

arch/s390/kernel/nmi.c

255

if (xchg(&mchchk_wng_posted, 1) == 0)

arch/s390/kernel/time.c

523

if (xchg(&first, 1) == 0) {

arch/s390/kernel/time.c

542

xchg(&first, 0);

arch/s390/kvm/interrupt.c

3114

origin = xchg(&gib->alert_list_origin,

arch/sh/include/asm/barrier.h

41

#define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)

arch/sparc/include/asm/parport_64.h

54

if (xchg(&sparc_ebus_dmas[dmanr].lock, 1) != 0)

arch/sparc/include/asm/parport_64.h

65

if (xchg(&sparc_ebus_dmas[dmanr].lock, 0) == 0) {

arch/x86/boot/startup/sev-shared.c

114

*pending = xchg(&call->caa->call_pending, *pending);

arch/x86/hyperv/hv_apic.c

98

if (hvp && (xchg(&hvp->apic_assist, 0) & 0x1))

arch/x86/include/asm/atomic64_32.h

111

alternative_atomic64(xchg,

arch/x86/include/asm/atomic64_32.h

80

ATOMIC64_DECL(xchg);

arch/x86/include/asm/barrier.h

57

#define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)

arch/x86/include/asm/cmpxchg.h

78

#define arch_xchg(ptr, v) __xchg_op((ptr), (v), xchg, "")

arch/x86/include/asm/pgtable-2level.h

52

return __pte(xchg(&xp->pte_low, 0));

arch/x86/include/asm/pgtable-2level.h

61

return __pmd(xchg((pmdval_t *)xp, 0));

arch/x86/include/asm/pgtable-2level.h

70

return __pud(xchg((pudval_t *)xp, 0));

arch/x86/include/asm/pgtable-3level.h

137

old.pmd_low = xchg(&pmdp->pmd_low, pmd.pmd_low);

arch/x86/include/asm/pgtable.h

1362

return xchg(pmdp, pmd);

arch/x86/include/asm/pgtable.h

1377

return xchg(pudp, pud);

arch/x86/include/asm/pgtable_64.h

103

return native_make_pmd(xchg(&xp->pmd, 0));

arch/x86/include/asm/pgtable_64.h

126

return native_make_pud(xchg(&xp->pud, 0));

arch/x86/include/asm/pgtable_64.h

90

return native_make_pte(xchg(&xp->pte, 0));

arch/x86/include/asm/xen/events.h

24

#define xchg_xen_ulong(ptr, val) xchg((ptr), (val))

arch/x86/kernel/cpu/mce/dev-mcelog.c

268

return put_user(xchg(&mcelog->flags, 0), p);

arch/x86/kernel/cpu/microcode/intel.c

733

if (xchg(&ucode_patch_va, NULL) != UCODE_BSP_LOADED)

arch/x86/kernel/crash.c

562

xchg(&kexec_crash_image, NULL);

arch/x86/kernel/crash.c

564

xchg(&kexec_crash_image, image);

arch/x86/kvm/mmu/mmu.c

352

return xchg(sptep, spte);

arch/x86/kvm/mmu/mmu.c

426

orig.spte_low = xchg(&ssptep->spte_low, sspte.spte_low);

arch/x86/kvm/mmu/tdp_iter.h

25

return xchg(rcu_dereference(sptep), new_spte);

drivers/accessibility/speakup/devsynth.c

107

if (xchg(&dev_opened, 1))

drivers/accessibility/speakup/selection.c

101

tty = xchg(&speakup_sel_work.tty, NULL);

drivers/accessibility/speakup/selection.c

110

struct tty_struct *tty = xchg(&ssw->tty, NULL);

drivers/accessibility/speakup/selection.c

138

tty = xchg(&speakup_paste_work.tty, NULL);

drivers/accessibility/speakup/selection.c

39

tty = xchg(&ssw->tty, NULL);

drivers/atm/eni.c

1535

events = xchg(&eni_dev->events,0);

drivers/block/ataflop.c

678

handler = xchg(&FloppyIRQHandler, NULL);

drivers/gpu/drm/armada/armada_crtc.c

128

event = xchg(&crtc->state->event, NULL);

drivers/gpu/drm/armada/armada_crtc.c

296

event = xchg(&dcrtc->event, NULL);

drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c

218

if (xchg(&engine->heartbeat.blocked, serial) == serial)

drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c

308

old = xchg(&engine->props.heartbeat_interval_ms, delay);

drivers/gpu/drm/i915/gt/intel_execlists_submission.c

1648

for (port = xchg(&execlists->active, execlists->pending); *port; port++)

drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c

234

old = xchg(&fence->vma, NULL);

drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c

65

if (!xchg(&node->age, 0))

drivers/gpu/drm/i915/gt/intel_gt_requests.c

64

struct intel_timeline *tl = xchg(&engine->retire, NULL);

drivers/gpu/drm/i915/gt/intel_gt_requests.c

67

struct intel_timeline *next = xchg(&tl->retire, NULL);

drivers/gpu/drm/i915/gt/intel_reset.c

49

prev_hang = xchg(&file_priv->hang_timestamp, jiffies);

drivers/gpu/drm/i915/gt/selftest_execlists.c

1154

timeslice = xchg(&engine->props.timeslice_duration_ms, 1);

drivers/gpu/drm/i915/gt/selftest_execlists.c

1446

timeslice = xchg(&engine->props.timeslice_duration_ms, 1);

drivers/gpu/drm/i915/gt/selftest_execlists.c

1513

xchg(&engine->props.timeslice_duration_ms, timeslice);

drivers/gpu/drm/i915/gt/selftest_hangcheck.c

1857

error = xchg(&global->first_error, (void *)-1);

drivers/gpu/drm/i915/gt/selftest_hangcheck.c

1861

xchg(&global->first_error, error);

drivers/gpu/drm/i915/gt/selftest_timeline.c

81

tl = xchg(&state->history[idx], tl);

drivers/gpu/drm/i915/i915_perf.c

3636

config = xchg(&stream->oa_config, config);

drivers/gpu/drm/i915/i915_request.c

844

rq = xchg(rsvd, NULL);

drivers/gpu/drm/i915/i915_sw_fence.c

436

fence = xchg(&cb->base.fence, NULL);

drivers/gpu/drm/i915/i915_sw_fence.c

461

fence = xchg(&cb->base.fence, NULL);

drivers/gpu/drm/i915/intel_uncore.c

443

if (xchg(&domain->active, false))

drivers/gpu/drm/i915/intel_wakeref.c

148

wakeref = xchg(&wf->wakeref, NULL);

drivers/gpu/drm/i915/intel_wakeref.c

36

wakeref = xchg(&wf->wakeref, NULL);

drivers/gpu/drm/i915/intel_wakeref.c

66

wakeref = xchg(&wf->wakeref, NULL);

drivers/gpu/drm/i915/selftests/i915_active.c

322

fence = xchg(__active_fence_slot(active), NULL);

drivers/gpu/drm/qxl/qxl_irq.c

39

pending = xchg(&qdev->ram_header->int_pending, 0);

drivers/gpu/drm/v3d/v3d_perfmon.c

486

xchg(&v3d->global_perfmon, NULL);

drivers/gpu/drm/xe/xe_oa.c

1564

config = xchg(&stream->oa_config, config);

drivers/hv/channel_mgmt.c

925

if (xchg(&vmbus_connection.conn_state, DISCONNECTED) == DISCONNECTED)

drivers/infiniband/hw/hfi1/chip.c

7113

xchg(&ppd->is_link_down_queued, 0);

drivers/infiniband/hw/hfi1/chip.c

7870

if (xchg(&ppd->is_link_down_queued, 1) == 1)

drivers/infiniband/hw/hfi1/user_sdma.c

102

xchg(&pq->state, SDMA_PKT_Q_ACTIVE);

drivers/infiniband/hw/hfi1/user_sdma.c

83

xchg(&pq->state, SDMA_PKT_Q_DEFERRED);

drivers/infiniband/hw/ionic/ionic_admin.c

949

xchg(&eq->armed, 1);

drivers/infiniband/hw/ionic/ionic_admin.c

961

was_armed = xchg(&eq->armed, 0);

drivers/infiniband/hw/ionic/ionic_admin.c

972

xchg(&eq->armed, 1);

drivers/infiniband/sw/rdmavt/qp.c

234

bits = xchg(&wss->entries[entry], 0);

drivers/iommu/s390-iommu.c

492

xchg(ptep, pte);

drivers/irqchip/irq-ompic.c

128

while ((ops = xchg(pending_ops, 0)) != 0) {

drivers/md/dm-bufio.c

2194

a = xchg(&c->async_write_error, 0);

drivers/md/dm-vdo/funnel-queue.h

96

previous = xchg(&queue->newest, entry);

drivers/md/raid5-cache.c

1497

sector_t reclaim_target = xchg(&log->reclaim_target, 0);

drivers/misc/sgi-gru/grufault.c

153

k = xchg(&tfm->fault_bits[i], 0UL);

drivers/misc/sgi-gru/grufault.c

157

k = xchg(&tfm->done_bits[i], 0UL);

drivers/net/ethernet/amazon/ena/ena_xdp.c

243

old_bpf_prog = xchg(&rx_ring->xdp_bpf_prog, prog);

drivers/net/ethernet/amazon/ena/ena_xdp.c

256

struct bpf_prog *old_bpf_prog = xchg(&adapter->xdp_bpf_prog, prog);

drivers/net/ethernet/aquantia/atlantic/aq_main.c

432

old_prog = xchg(&aq_nic->xdp_prog, prog);

drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c

421

old = xchg(&bp->xdp_prog, prog);

drivers/net/ethernet/cavium/thunder/nicvf_main.c

1860

old_prog = xchg(&nic->xdp_prog, prog);

drivers/net/ethernet/engleder/tsnep_xdp.c

14

old_prog = xchg(&adapter->xdp_prog, prog);

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

3044

old_prog = xchg(&priv->xdp_prog, bpf->prog);

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

2773

old = xchg(&priv->xdp_prog, prog);

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

2779

old = xchg(&ch->xdp.prog, prog);

drivers/net/ethernet/freescale/enetc/enetc.c

3241

old_prog = xchg(&priv->xdp_prog, prog);

drivers/net/ethernet/freescale/enetc/enetc.c

3246

xchg(&priv->xdp_prog, old_prog);

drivers/net/ethernet/freescale/fec_main.c

4651

old_prog = xchg(&fep->xdp_prog, bpf->prog);

drivers/net/ethernet/fungible/funcore/fun_dev.c

202

cmd_ctx->cb(fdev, entry, xchg(&cmd_ctx->cb_data, NULL));

drivers/net/ethernet/fungible/funeth/funeth_main.c

1156

old_prog = xchg(&fp->xdp_prog, prog);

drivers/net/ethernet/intel/i40e/i40e_main.c

13268

old_prog = xchg(&vsi->xdp_prog, prog);

drivers/net/ethernet/intel/ice/ice_main.c

2663

old_prog = xchg(&vsi->xdp_prog, prog);

drivers/net/ethernet/intel/idpf/xdp.c

467

old = xchg(&vport->xdp_prog, prog);

drivers/net/ethernet/intel/igb/igb_main.c

2910

old_prog = xchg(&adapter->xdp_prog, prog);

drivers/net/ethernet/intel/igb/igb_main.c

2918

(void)xchg(&adapter->rx_ring[i]->xdp_prog,

drivers/net/ethernet/intel/igc/igc_xdp.c

36

old_prog = xchg(&adapter->xdp_prog, prog);

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

10925

old_prog = xchg(&adapter->xdp_prog, prog);

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

4484

old_prog = xchg(&adapter->xdp_prog, prog);

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

4502

xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);

drivers/net/ethernet/marvell/mvneta.c

4676

old_prog = xchg(&pp->xdp_prog, prog);

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

5355

old_prog = xchg(&port->xdp_prog, prog);

drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c

2830

old_prog = xchg(&pf->xdp_prog, prog);

drivers/net/ethernet/meta/fbnic/fbnic_netdev.c

539

prev_prog = xchg(&fbn->xdp_prog, prog);

drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c

24

old_prog = xchg(&port->xdp_prog, xdp->prog);

drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c

32

xchg(&port->xdp_prog, old_prog);

drivers/net/ethernet/pensando/ionic/ionic_lif.c

2772

old_prog = xchg(&lif->xdp_prog, bpf->prog);

drivers/net/ethernet/pensando/ionic/ionic_lif.c

2774

old_prog = xchg(&lif->xdp_prog, bpf->prog);

drivers/net/ethernet/pensando/ionic/ionic_lif.c

2783

old_prog = xchg(&lif->xdp_prog, bpf->prog);

drivers/net/ethernet/qlogic/qede/qede_filter.c

1022

old = xchg(&edev->xdp_prog, args->u.new_prog);

drivers/net/ethernet/renesas/rswitch_main.c

1060

ts_skb = xchg(&rdev->ts_skb[tag], NULL);

drivers/net/ethernet/renesas/rswitch_main.c

1662

ts_skb = xchg(&rdev->ts_skb[tag], NULL);

drivers/net/ethernet/sfc/mcdi.c

1276

if (xchg(&mcdi->mode, MCDI_MODE_FAIL) == MCDI_MODE_FAIL)

drivers/net/ethernet/sfc/siena/mcdi.c

1299

if (xchg(&mcdi->mode, MCDI_MODE_FAIL) == MCDI_MODE_FAIL)

drivers/net/ethernet/socionext/netsec.c

1812

old_prog = xchg(&priv->xdp_prog, prog);

drivers/net/ethernet/stmicro/stmmac/stmmac_xdp.c

127

old_prog = xchg(&priv->xdp_prog, prog);

drivers/net/ethernet/ti/am65-cpsw-nuss.c

1930

old_prog = xchg(&port->xdp_prog, prog);

drivers/net/netkit.c

711

oprog = xchg(&link->prog, nprog);

drivers/net/slip/slip.c

181

rbuff = xchg(&sl->rbuff, rbuff);

drivers/net/slip/slip.c

182

xbuff = xchg(&sl->xbuff, xbuff);

drivers/net/slip/slip.c

184

cbuff = xchg(&sl->cbuff, cbuff);

drivers/net/slip/slip.c

185

slcomp = xchg(&sl->slcomp, slcomp);

drivers/net/slip/slip.c

209

kfree(xchg(&sl->rbuff, NULL));

drivers/net/slip/slip.c

210

kfree(xchg(&sl->xbuff, NULL));

drivers/net/slip/slip.c

212

kfree(xchg(&sl->cbuff, NULL));

drivers/net/slip/slip.c

213

slhc_free(xchg(&sl->slcomp, NULL));

drivers/net/slip/slip.c

264

xbuff = xchg(&sl->xbuff, xbuff);

drivers/net/slip/slip.c

265

rbuff = xchg(&sl->rbuff, rbuff);

drivers/net/slip/slip.c

267

cbuff = xchg(&sl->cbuff, cbuff);

drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c

150

int i, j, xchg;

drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c

168

xchg = tbl->win_size - i;

drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c

169

for (j = 0; j < xchg; ++j) {

drivers/nvme/target/rdma.c

1757

if (xchg(&port->cm_id, NULL) != cm_id)

drivers/nvme/target/rdma.c

1852

struct rdma_cm_id *cm_id = xchg(&port->cm_id, NULL);

drivers/pci/controller/pci-hyperv.c

2260

event = xchg(&hbus->survey_event, NULL);

drivers/pci/pci.h

749

xchg(&dev->error_state, pci_channel_io_perm_failure);

drivers/s390/char/con3270.c

312

xchg(&tp->write, rq);

drivers/s390/char/con3270.c

532

wrq = xchg(&tp->write, NULL);

drivers/s390/char/con3270.c

578

xchg(&tp->write, wrq);

drivers/s390/char/con3270.c

726

xchg(&tp->read, rrq);

drivers/s390/char/con3270.c

750

rrq = xchg(&tp->read, NULL);

drivers/s390/char/con3270.c

765

xchg(&tp->read, rrq);

drivers/s390/cio/qdio_thinint.c

121

xchg(irq->dsci, 0);

drivers/s390/cio/qdio_thinint.c

91

return xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 0);

drivers/s390/net/qeth_core.h

870

xchg(&channel->active_cmd, NULL);

drivers/s390/net/qeth_core_main.c

1734

xchg(&channel->active_cmd, NULL);

drivers/s390/net/qeth_core_main.c

3766

if (xchg(&priv->state, QETH_QAOB_DONE) == QETH_QAOB_PENDING &&

drivers/s390/net/qeth_core_main.c

5906

if (xchg(&priv->state, QETH_QAOB_PENDING) != QETH_QAOB_DONE) {

drivers/scsi/lpfc/lpfc_sli.c

14970

xchg(&cq->queue_claimed, 0);

drivers/scsi/lpfc/lpfc_sli.c

666

xchg(&eq->queue_claimed, 0);

drivers/scsi/smartpqi/smartpqi_init.c

5974

wait = (struct completion *)xchg(&scmd->host_scribble, NULL);

drivers/scsi/smartpqi/smartpqi_init.c

6493

scmd = (struct scsi_cmnd *)xchg(&tmf_work->scmd, NULL);

drivers/soc/qcom/smsm.c

220

changed = val ^ xchg(&entry->last_value, val);

drivers/tty/serial/8250/8250_port.c

650

rpm_active = xchg(&p->rpm_tx_active, 1);

drivers/tty/serial/8250/8250_port.c

663

rpm_active = xchg(&p->rpm_tx_active, 0);

drivers/tty/tty_audit.c

118

buf = xchg(&current->signal->tty_audit_buf, ERR_PTR(-ESRCH));

drivers/tty/vt/vt.c

3360

return xchg(&kmsg_con, new);

drivers/usb/gadget/function/f_fs.c

903

struct ffs_buffer *buf = xchg(&epfile->read_buffer, READ_BUFFER_DROP);

drivers/usb/gadget/function/f_fs.c

917

struct ffs_buffer *buf = xchg(&epfile->read_buffer, NULL);

drivers/video/fbdev/pxafb.c

1628

u_int state = xchg(&fbi->task_state, -1);

drivers/video/fbdev/sa1100fb.c

964

u_int state = xchg(&fbi->task_state, -1);

drivers/xen/events/events_fifo.c

326

ready = xchg(&control_block->ready, 0);

drivers/xen/events/events_fifo.c

331

ready |= xchg(&control_block->ready, 0);

drivers/xen/mcelog.c

168

flags = xchg(&xen_mcelog.flags, 0);

fs/cachefiles/daemon.c

101

if (xchg(&cachefiles_open, 1) == 1)

fs/ceph/mds_client.c

3947

struct inode *in = xchg(&req->r_new_inode, NULL);

fs/ceph/mds_client.c

4465

dcaps = xchg(&req->r_dir_caps, 0);

fs/ceph/mds_client.c

4477

dcaps = xchg(&req->r_dir_caps, 0);

fs/crypto/inline_crypt.c

82

if (!xchg(&mode->logged_blk_crypto_native, 1))

fs/crypto/inline_crypt.c

85

} else if (!xchg(&mode->logged_blk_crypto_fallback, 1)) {

fs/crypto/keysetup.c

120

if (!xchg(&mode->logged_cryptoapi_impl, 1)) {

fs/ext4/page-io.c

385

bio->bi_private = xchg(&io_end->bio, bio);

fs/fuse/fuse_i.h

1591

return xchg(&fi->fb, fb);

fs/namespace.c

1896

if (!xchg(&mnt->mnt_expiry_mark, 1))

fs/namespace.c

3947

if (!xchg(&mnt->mnt_expiry_mark, 1) ||

fs/nfs/delegation.c

398

old = xchg(&delegation->cred, get_cred(cred));

fs/nfs/flexfilelayout/flexfilelayout.c

612

cred = xchg(&mirror->dss[dss_id].ro_cred,

fs/nfs/flexfilelayout/flexfilelayout.c

616

cred = xchg(&mirror->dss[dss_id].rw_cred,

fs/nfs/nfs4idmap.c

667

data = xchg(&idmap->idmap_upcall_data, NULL);

fs/nfs/nfs4idmap.c

727

data = xchg(&idmap->idmap_upcall_data, NULL);

fs/nfs/nfs4state.c

2283

clnt = xchg(&clp->cl_rpcclient, clnt);

fs/nfs/pnfs.c

1056

old = xchg(&lo->plh_lc_cred, get_cred(cred));

fs/nfs/read.c

176

xchg(&nfs_req_openctx(req)->error, error);

fs/nfs/read.c

337

xchg(&ctx->error, 0);

fs/nfs/read.c

354

ret = xchg(&ctx->error, 0);

fs/nfs/sysfs.c

113

old = rcu_dereference_protected(xchg(&c->identifier, (char __rcu *)p), 1);

fs/nfs/write.c

1201

old = rcu_dereference_protected(xchg(&ctx->ll_cred,

fs/nfsd/filecache.c

389

nf = unrcu_pointer(xchg(pnf, NULL));

fs/ocfs2/file.c

2470

saved_ki_complete = xchg(&iocb->ki_complete, NULL);

fs/ocfs2/file.c

2518

xchg(&iocb->ki_complete, saved_ki_complete);

fs/posix_acl.c

86

old = xchg(p, posix_acl_dup(acl));

fs/posix_acl.c

96

old = xchg(p, ACL_NOT_CACHED);

fs/proc/kcore.c

280

if (!xchg(&kcore_need_update, 0))

fs/smb/client/connect.c

1438

task_to_wake = xchg(&server->tsk, NULL);

fs/smb/client/connect.c

1739

task = xchg(&server->tsk, NULL);

fs/xfs/xfs_log_cil.c

175

count += xchg(&cilpcp->space_used, 0);

fs/xfs/xfs_zone_alloc.c

826

old_oz = xchg(&VFS_I(ip)->i_private, oz);

include/linux/debug_locks.h

16

return xchg(&debug_locks, 0);

include/linux/llist.h

283

return xchg(&head->first, NULL);

include/linux/mm.h

2052

return xchg(&folio->_last_cpupid, cpupid & LAST_CPUPID_MASK);

include/linux/skmsg.h

521

prog = xchg(pprog, prog);

include/net/pkt_cls.h

165

return xchg(clp, cl);

include/net/sock.h

2236

old_dst = unrcu_pointer(xchg(&sk->sk_dst_cache, RCU_INITIALIZER(dst)));

include/net/sock.h

2527

err = xchg(&sk->sk_err, 0);

kernel/acct.c

274

old = xchg(&ns->bacct, &acct->pin);

kernel/audit.c

1565

t = xchg(&current->signal->audit_tty, t);

kernel/bpf/arraymap.c

920

old_ptr = xchg(array->ptrs + index, new_ptr);

kernel/bpf/arraymap.c

924

old_ptr = xchg(array->ptrs + index, new_ptr);

kernel/bpf/arraymap.c

943

old_ptr = xchg(array->ptrs + index, NULL);

kernel/bpf/arraymap.c

947

old_ptr = xchg(array->ptrs + index, NULL);

kernel/bpf/bpf_iter.c

427

old_prog = xchg(&link->prog, new_prog);

kernel/bpf/cgroup.c

1005

old_prog = xchg(&link->link.prog, new_prog);

kernel/bpf/cpumap.c

558

old_rcpu = unrcu_pointer(xchg(&cmap->cpu_map[key_cpu], RCU_INITIALIZER(rcpu)));

kernel/bpf/devmap.c

853

old_dev = unrcu_pointer(xchg(&dtab->netdev_map[k], NULL));

kernel/bpf/devmap.c

964

old_dev = unrcu_pointer(xchg(&dtab->netdev_map[i], RCU_INITIALIZER(dev)));

kernel/bpf/helpers.c

1422

prev = xchg(&cb->prog, prog);

kernel/bpf/helpers.c

1675

cb = xchg(&async->cb, NULL);

kernel/bpf/helpers.c

1721

return xchg(kptr, (unsigned long)ptr);

kernel/bpf/helpers.c

4520

ctx = xchg(&twk->ctx, NULL);

kernel/bpf/helpers.c

4524

state = xchg(&ctx->state, BPF_TW_FREED);

kernel/bpf/local_storage.c

176

new = xchg(&storage->buf, new);

kernel/bpf/net_namespace.c

195

old_prog = xchg(&link->prog, new_prog);

kernel/bpf/ringbuf.c

573

xchg(&hdr->len, new_len);

kernel/bpf/stackmap.c

317

old_bucket = xchg(&smap->buckets[id], new_bucket);

kernel/bpf/stackmap.c

684

bucket = xchg(&smap->buckets[id], NULL);

kernel/bpf/stackmap.c

695

old_bucket = xchg(&smap->buckets[id], bucket);

kernel/bpf/stackmap.c

746

old_bucket = xchg(&smap->buckets[id], NULL);

kernel/bpf/syscall.c

842

xchgd_field = (void *)xchg((unsigned long *)field_ptr, 0);

kernel/bpf/tcx.c

237

oprog = xchg(&link->prog, nprog);

kernel/dma.c

75

if (xchg(&dma_chan_busy[dmanr].lock, 1) != 0)

kernel/dma.c

95

if (xchg(&dma_chan_busy[dmanr].lock, 0) == 0) {

kernel/events/uprobes.c

737

*hstate = xchg(&hprobe->state, HPROBE_CONSUMED);

kernel/exit.c

431

self.next = xchg(&core_state->dumper.next, &self);

kernel/kcsan/kcsan_test.c

585

KCSAN_EXPECT_READ_BARRIER(xchg(&test_var, 0), true);

kernel/kcsan/kcsan_test.c

630

KCSAN_EXPECT_WRITE_BARRIER(xchg(&test_var, 0), true);

kernel/kcsan/kcsan_test.c

675

KCSAN_EXPECT_RW_BARRIER(xchg(&test_var, 0), true);

kernel/kcsan/selftest.c

151

KCSAN_CHECK_READ_BARRIER(xchg(&test_var, 0));

kernel/kcsan/selftest.c

180

KCSAN_CHECK_WRITE_BARRIER(xchg(&test_var, 0));

kernel/kcsan/selftest.c

212

KCSAN_CHECK_RW_BARRIER(xchg(&test_var, 0));

kernel/kexec.c

117

kimage_free(xchg(dest_image, NULL));

kernel/kexec.c

127

kimage_free(xchg(&kexec_crash_image, NULL));

kernel/kexec.c

167

image = xchg(dest_image, image);

kernel/kexec_file.c

404

kimage_free(xchg(&kexec_crash_image, NULL));

kernel/kexec_file.c

460

image = xchg(dest_image, image);

kernel/kthread.c

394

done = xchg(&create->done, NULL);

kernel/kthread.c

463

struct completion *done = xchg(&create->done, NULL);

kernel/kthread.c

513

if (xchg(&create->done, NULL))

kernel/locking/mcs_spinlock.h

71

prev = xchg(lock, node);

kernel/locking/osq_lock.c

225

next = xchg(&node->next, NULL);

kernel/locking/osq_lock.c

84

next = xchg(&node->next, NULL);

kernel/locking/qspinlock_paravirt.h

452

if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) {

kernel/pid.c

779

put_pid(xchg(&cad_pid, new_pid));

kernel/rcu/rcutorture.c

1270

if (!xchg(&dbg_done, 1) && cur_ops->gp_kthread_dbg) {

kernel/rcu/rcutorture.c

2416

if ((pipe_count > 1 || completed > 1) && !xchg(&err_segs_recorded, 1)) {

kernel/rcu/tree.c

1394

duration = xchg(&sleep_duration, 0UL);

kernel/sched/fair.c

2236

if (env->best_cpu != env->dst_cpu && xchg(&rq->numa_migrate_on, 1)) {

kernel/sched/fair.c

2249

if (!xchg(&rq->numa_migrate_on, 1))

kernel/sys.c

1962

mask = xchg(&current->fs->umask, mask & S_IRWXUGO);

kernel/umh.c

446

if (xchg(&sub_info->complete, NULL))

kernel/umh.c

48

struct completion *comp = xchg(&sub_info->complete, NULL);

lib/atomic64_test.c

81

FAMILY_TEST(TEST_ARGS, bit, xchg, init, init, new, new); \

lib/generic-radix-tree.c

225

struct genradix_root *r = xchg(&radix->root, NULL);

lib/sbitmap.c

91

mask = xchg(&map->cleared, 0);

lib/test_bpf.c

9121

BPF_ATOMIC_OP_TEST1(BPF_W, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9122

BPF_ATOMIC_OP_TEST2(BPF_W, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9123

BPF_ATOMIC_OP_TEST3(BPF_W, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9124

BPF_ATOMIC_OP_TEST4(BPF_W, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9126

BPF_ATOMIC_OP_TEST1(BPF_DW, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9127

BPF_ATOMIC_OP_TEST2(BPF_DW, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9128

BPF_ATOMIC_OP_TEST3(BPF_DW, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

lib/test_bpf.c

9129

BPF_ATOMIC_OP_TEST4(BPF_DW, BPF_XCHG, xchg, 0x12, 0xab, 0xab),

mm/huge_memory.c

290

struct folio *zero_folio = xchg(&huge_zero_folio, NULL);

mm/memcontrol.c

2689

old = xchg(&current->objcg, NULL);

mm/memcontrol.c

4456

xchg(&memcg->memory.max, max);

mm/memcontrol.c

5391

xchg(&memcg->swap.max, max);

mm/memcontrol.c

5582

xchg(&memcg->zswap_max, max);

mm/page_counter.c

219

old = xchg(&counter->max, nr_pages);

mm/vmstat.c

183

zone_numa_events[item] += xchg(&pzstats->vm_numa_event[item], 0);

net/atm/clip.c

270

old = xchg(&clip_vcc->xoff, 0);

net/atm/clip.c

399

old = xchg(&entry->vccs->xoff, 1); /* assume XOFF ... */

net/atm/svc.c

555

error = -xchg(&sk->sk_err_soft, 0);

net/atm/svc.c

582

error = -xchg(&sk->sk_err_soft, 0);

net/bridge/netfilter/ebt_limit.c

42

info->credit += (now - xchg(&info->prev, now)) * CREDITS_PER_JIFFY;

net/core/dev.c

10658

old_prog = xchg(&link->prog, new_prog);

net/core/gen_estimator.c

211

est = unrcu_pointer(xchg(rate_est, NULL));

net/core/sock.c

1800

v.val = xchg(&sk->sk_err_soft, 0);

net/core/sock_diag.c

190

xchg(&inet_rcv_compat, RCU_INITIALIZER(ptr));

net/core/sock_diag.c

198

old = unrcu_pointer(xchg(&inet_rcv_compat, NULL));

net/core/sock_diag.c

223

xchg((const struct sock_diag_handler **)&sock_diag_handlers[family],

net/core/sock_map.c

1793

old_link_prog = xchg(&link->prog, prog);

net/core/sock_map.c

353

sk = xchg(psk, NULL);

net/core/sock_map.c

423

sk = xchg(psk, NULL);

net/ipv4/cipso_ipv4.c

1977

opt = unrcu_pointer(xchg(&req_inet->ireq_opt, RCU_INITIALIZER(opt)));

net/ipv4/inet_diag.c

1067

xchg((const struct inet_diag_handler **)&inet_diag_table[type],

net/ipv4/tcp.c

3490

dst_release(unrcu_pointer(xchg(&sk->sk_rx_dst, NULL)));

net/ipv4/tcp.c

352

val = xchg(&tcp_memory_pressure, 0);

net/ipv4/tcp_cong.c

298

prev = xchg(&net->ipv4.tcp_congestion_control, ca);

net/ipv4/tcp_fastopen.c

139

ctxt = unrcu_pointer(xchg(&net->ipv4.tcp_fastopen_ctx, NULL));

net/ipv4/tcp_fastopen.c

170

octx = unrcu_pointer(xchg(&q->ctx, RCU_INITIALIZER(ctx)));

net/ipv4/tcp_fastopen.c

172

octx = unrcu_pointer(xchg(&net->ipv4.tcp_fastopen_ctx,

net/ipv4/udp.c

2542

old = unrcu_pointer(xchg(&sk->sk_rx_dst, RCU_INITIALIZER(dst)));

net/ipv6/af_inet6.c

491

skb = xchg(&np->pktoptions, NULL);

net/ipv6/af_inet6.c

494

skb = xchg(&np->rxpmtu, NULL);

net/ipv6/af_inet6.c

502

opt = unrcu_pointer(xchg(&np->opt, NULL));

net/ipv6/calipso.c

1229

txopts = xchg(&req_inet->ipv6_opt, txopts);

net/ipv6/calipso.c

1266

txopts = xchg(&req_inet->ipv6_opt, txopts);

net/ipv6/datagram.c

416

skb = xchg(&np->rxpmtu, skb);

net/ipv6/datagram.c

559

skb = xchg(&np->rxpmtu, NULL);

net/ipv6/ip6_fib.c

1004

from = unrcu_pointer(xchg(&pcpu_rt->from, NULL));

net/ipv6/ipv6_sockglue.c

118

opt = unrcu_pointer(xchg(&inet6_sk(sk)->opt, RCU_INITIALIZER(opt)));

net/ipv6/route.c

1451

prev = xchg(p, NULL);

net/ipv6/route.c

1490

from = unrcu_pointer(xchg(&pcpu_rt->from, NULL));

net/ipv6/route.c

369

from = unrcu_pointer(xchg(&rt->from, NULL));

net/ipv6/route.c

3739

pcpu_rt = xchg(ppcpu_rt, NULL);

net/ipv6/route.c

387

from = unrcu_pointer(xchg(&rt->from, NULL));

net/ipv6/tcp_ipv6.c

1661

opt_skb = xchg(&np->pktoptions, opt_skb);

net/ipv6/tcp_ipv6.c

1664

opt_skb = xchg(&np->pktoptions, NULL);

net/iucv/af_iucv.c

339

if (xchg(&iucv->path, NULL)) {

net/mptcp/protocol.c

4563

mptcp_subflow_process_delegated(ssk, xchg(&subflow->delegated_status, 0));

net/netfilter/nf_conntrack_ecache.c

227

events = xchg(&e->cache, 0);

net/netfilter/nf_log.c

325

m = xchg(&emergency_ptr, NULL);

net/netfilter/xt_limit.c

77

credit_increase += (now - xchg(&priv->prev, now)) * CREDITS_PER_JIFFY;

net/netlabel/netlabel_calipso.c

70

return xchg(&calipso_ops, ops);

net/rds/ib_recv.c

506

old = xchg(&cache->xfer, NULL);

net/rds/ib_recv.c

93

tmp = xchg(&cache->xfer, NULL);

net/rxrpc/peer_object.c

544

return xchg(&peer->app_data, app_data);

net/sched/act_api.c

65

old = unrcu_pointer(xchg(old_cookie, RCU_INITIALIZER(new_cookie)));

net/smc/smc_sysctl.c

61

ctrl = unrcu_pointer(xchg(&net->smc.hs_ctrl, RCU_INITIALIZER(ctrl)));

net/sunrpc/xprtmultipath.c

582

oldswitch = xchg(&xpi->xpi_xpswitch, RCU_INITIALIZER(newswitch));

net/sunrpc/xprtsock.c

2832

sockerr = xchg(&transport->xprt_err, 0);

net/xdp/xskmap.c

234

old_xs = unrcu_pointer(xchg(map_entry, NULL));

rust/helpers/atomic_ext.c

56

return xchg(ptr, new);

rust/helpers/atomic_ext.c

61

return xchg(ptr, new);

sound/usb/mixer_quirks.c

229

(rc_code = xchg(&mixer->rc_code, 0)) != 0);

tools/testing/selftests/bpf/prog_tests/arena_atomics.c

135

prog_fd = bpf_program__fd(skel->progs.xchg);

tools/testing/selftests/bpf/prog_tests/atomics.c

151

prog_fd = skel->progs.xchg.prog_fd;

tools/testing/selftests/bpf/progs/arena_atomics.c

199

int xchg(const void *ctx)

tools/testing/selftests/bpf/progs/atomics.c

157

int xchg(const void *ctx)

tools/testing/selftests/powerpc/benchmarks/context_switch.c

293

c = xchg(m, 2);

tools/testing/selftests/powerpc/benchmarks/context_switch.c

297

c = xchg(m, 2);

tools/testing/selftests/powerpc/benchmarks/context_switch.c

311

else if (xchg(m, 0) == 1)

virt/kvm/kvm_main.c

2281

mask = xchg(&dirty_bitmap[i], 0);