/* Mark this context has been used on the new CPU */
if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(next))) {
cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
+
+ /*
+ * This full barrier orders the store to the cpumask above vs
+ * a subsequent operation which allows this CPU to begin loading
+ * translations for next.
+ *
+ * When using the radix MMU that operation is the load of the
+ * MMU context id, which is then moved to SPRN_PID.
+ *
+ * For the hash MMU it is either the first load from slb_cache
+ * in switch_slb(), and/or the store of paca->mm_ctx_id in
+ * copy_mm_to_paca().
+ *
+ * On the read side the barrier is in pte_xchg(), which orders
+ * the store to the PTE vs the load of mm_cpumask.
+ */
+ smp_mb();
+
new_on_cpu = true;
}
unsigned long *p = (unsigned long *)ptep;
__be64 prev;
+ /* See comment in switch_mm_irqs_off() */
prev = (__force __be64)__cmpxchg_u64(p, (__force unsigned long)pte_raw(old),
(__force unsigned long)pte_raw(new));
{
unsigned long *p = (unsigned long *)ptep;
+ /* See comment in switch_mm_irqs_off() */
return pte_val(old) == __cmpxchg_u64(p, pte_val(old), pte_val(new));
}
#endif
struct kvm_create_spapr_tce_64 *args)
{
struct kvmppc_spapr_tce_table *stt = NULL;
+ struct kvmppc_spapr_tce_table *siter;
unsigned long npages, size;
int ret = -ENOMEM;
int i;
+ int fd = -1;
if (!args->size)
return -EINVAL;
- /* Check this LIOBN hasn't been previously allocated */
- list_for_each_entry(stt, &kvm->arch.spapr_tce_tables, list) {
- if (stt->liobn == args->liobn)
- return -EBUSY;
- }
-
size = _ALIGN_UP(args->size, PAGE_SIZE >> 3);
npages = kvmppc_tce_pages(size);
ret = kvmppc_account_memlimit(kvmppc_stt_pages(npages), true);
- if (ret) {
- stt = NULL;
- goto fail;
- }
+ if (ret)
+ return ret;
ret = -ENOMEM;
stt = kzalloc(sizeof(*stt) + npages * sizeof(struct page *),
GFP_KERNEL);
if (!stt)
- goto fail;
+ goto fail_acct;
stt->liobn = args->liobn;
stt->page_shift = args->page_shift;
goto fail;
}
- kvm_get_kvm(kvm);
+ ret = fd = anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
+ stt, O_RDWR | O_CLOEXEC);
+ if (ret < 0)
+ goto fail;
mutex_lock(&kvm->lock);
- list_add_rcu(&stt->list, &kvm->arch.spapr_tce_tables);
+
+ /* Check this LIOBN hasn't been previously allocated */
+ ret = 0;
+ list_for_each_entry(siter, &kvm->arch.spapr_tce_tables, list) {
+ if (siter->liobn == args->liobn) {
+ ret = -EBUSY;
+ break;
+ }
+ }
+
+ if (!ret) {
+ list_add_rcu(&stt->list, &kvm->arch.spapr_tce_tables);
+ kvm_get_kvm(kvm);
+ }
mutex_unlock(&kvm->lock);
- return anon_inode_getfd("kvm-spapr-tce", &kvm_spapr_tce_fops,
- stt, O_RDWR | O_CLOEXEC);
+ if (!ret)
+ return fd;
-fail:
- if (stt) {
- for (i = 0; i < npages; i++)
- if (stt->pages[i])
- __free_page(stt->pages[i]);
+ put_unused_fd(fd);
- kfree(stt);
- }
+ fail:
+ for (i = 0; i < npages; i++)
+ if (stt->pages[i])
+ __free_page(stt->pages[i]);
+
+ kfree(stt);
+ fail_acct:
+ kvmppc_account_memlimit(kvmppc_stt_pages(npages), false);
return ret;
}
/* Hypervisor doorbell - exit only if host IPI flag set */
cmpwi r12, BOOK3S_INTERRUPT_H_DOORBELL
bne 3f
+BEGIN_FTR_SECTION
+ PPC_MSGSYNC
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
lbz r0, HSTATE_HOST_IPI(r13)
cmpwi r0, 0
beq 4f
u8 cppr;
u16 ack;
- /* XXX DD1 bug workaround: Check PIPR vs. CPPR first ! */
+ /*
+ * Ensure any previous store to CPPR is ordered vs.
+ * the subsequent loads from PIPR or ACK.
+ */
+ eieio();
+
+ /*
+ * DD1 bug workaround: If PIPR is less favored than CPPR
+ * ignore the interrupt or we might incorrectly lose an IPB
+ * bit.
+ */
+ if (cpu_has_feature(CPU_FTR_POWER9_DD1)) {
+ u8 pipr = __x_readb(__x_tima + TM_QW1_OS + TM_PIPR);
+ if (pipr >= xc->hw_cppr)
+ return;
+ }
/* Perform the acknowledge OS to register cycle. */
ack = be16_to_cpu(__x_readw(__x_tima + TM_SPC_ACK_OS_REG));
/*
* If we found an interrupt, adjust what the guest CPPR should
* be as if we had just fetched that interrupt from HW.
+ *
+ * Note: This can only make xc->cppr smaller as the previous
+ * loop will only exit with hirq != 0 if prio is lower than
+ * the current xc->cppr. Thus we don't need to re-check xc->mfrr
+ * for pending IPIs.
*/
if (hirq)
xc->cppr = prio;
old_cppr = xc->cppr;
xc->cppr = cppr;
+ /*
+ * Order the above update of xc->cppr with the subsequent
+ * read of xc->mfrr inside push_pending_to_hw()
+ */
+ smp_mb();
+
/*
* We are masking less, we need to look for pending things
* to deliver and set VP pending bits accordingly to trigger
* used to signal MFRR changes is EOId when fetched from
* the queue.
*/
- if (irq == XICS_IPI || irq == 0)
+ if (irq == XICS_IPI || irq == 0) {
+ /*
+ * This barrier orders the setting of xc->cppr vs.
+ * subsquent test of xc->mfrr done inside
+ * scan_interrupts and push_pending_to_hw
+ */
+ smp_mb();
goto bail;
+ }
/* Find interrupt source */
sb = kvmppc_xive_find_source(xive, irq, &src);
if (!sb) {
pr_devel(" source not found !\n");
rc = H_PARAMETER;
+ /* Same as above */
+ smp_mb();
goto bail;
}
state = &sb->irq_state[src];
kvmppc_xive_select_irq(state, &hw_num, &xd);
state->in_eoi = true;
- mb();
+
+ /*
+ * This barrier orders both setting of in_eoi above vs,
+ * subsequent test of guest_priority, and the setting
+ * of xc->cppr vs. subsquent test of xc->mfrr done inside
+ * scan_interrupts and push_pending_to_hw
+ */
+ smp_mb();
again:
if (state->guest_priority == MASKED) {
}
+ /*
+ * This barrier orders the above guest_priority check
+ * and spin_lock/unlock with clearing in_eoi below.
+ *
+ * It also has to be a full mb() as it must ensure
+ * the MMIOs done in source_eoi() are completed before
+ * state->in_eoi is visible.
+ */
mb();
state->in_eoi = false;
bail:
/* Locklessly write over MFRR */
xc->mfrr = mfrr;
+ /*
+ * The load of xc->cppr below and the subsequent MMIO store
+ * to the IPI must happen after the above mfrr update is
+ * globally visible so that:
+ *
+ * - Synchronize with another CPU doing an H_EOI or a H_CPPR
+ * updating xc->cppr then reading xc->mfrr.
+ *
+ * - The target of the IPI sees the xc->mfrr update
+ */
+ mb();
+
/* Shoot the IPI if most favored than target cppr */
if (mfrr < xc->cppr)
__x_writeq(0, __x_trig_page(&xc->vp_ipi_data));
"srl %[cc],28\n"
: [cc] "=d" (cc)
: [code] "d" (code), [addr] "a" (addr)
- : "memory", "cc");
+ : "3", "memory", "cc");
return cc;
}
VCPU_EVENT(vcpu, 3, "STHYI: fc: %llu addr: 0x%016llx", code, addr);
trace_kvm_s390_handle_sthyi(vcpu, code, addr);
- if (reg1 == reg2 || reg1 & 1 || reg2 & 1 || addr & ~PAGE_MASK)
+ if (reg1 == reg2 || reg1 & 1 || reg2 & 1)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
if (code & 0xffff) {
goto out;
}
+ if (addr & ~PAGE_MASK)
+ return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
/*
* If the page has not yet been faulted in, we want to do that
* now and not after all the expensive calculations.
return 0;
}
-static inline void __copy_kernel_to_fpregs(union fpregs_state *fpstate)
+static inline void __copy_kernel_to_fpregs(union fpregs_state *fpstate, u64 mask)
{
if (use_xsave()) {
- copy_kernel_to_xregs(&fpstate->xsave, -1);
+ copy_kernel_to_xregs(&fpstate->xsave, mask);
} else {
if (use_fxsr())
copy_kernel_to_fxregs(&fpstate->fxsave);
: : [addr] "m" (fpstate));
}
- __copy_kernel_to_fpregs(fpstate);
+ __copy_kernel_to_fpregs(fpstate, -1);
}
extern int copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
unsigned long cr4;
unsigned long cr4_guest_owned_bits;
unsigned long cr8;
+ u32 pkru;
u32 hflags;
u64 efer;
u64 apic_base;
entry->ecx &= kvm_cpuid_7_0_ecx_x86_features;
cpuid_mask(&entry->ecx, CPUID_7_ECX);
/* PKU is not yet implemented for shadow paging. */
- if (!tdp_enabled)
+ if (!tdp_enabled || !boot_cpu_has(X86_FEATURE_OSPKE))
entry->ecx &= ~F(PKU);
entry->edx &= kvm_cpuid_7_0_edx_x86_features;
entry->edx &= get_scattered_cpuid_leaf(7, 0, CPUID_EDX);
| ((u64)(kvm_register_read(vcpu, VCPU_REGS_RDX) & -1u) << 32);
}
-static inline u32 kvm_read_pkru(struct kvm_vcpu *vcpu)
-{
- return kvm_x86_ops->get_pkru(vcpu);
-}
-
static inline void enter_guest_mode(struct kvm_vcpu *vcpu)
{
vcpu->arch.hflags |= HF_GUEST_MASK;
* index of the protection domain, so pte_pkey * 2 is
* is the index of the first bit for the domain.
*/
- pkru_bits = (kvm_read_pkru(vcpu) >> (pte_pkey * 2)) & 3;
+ pkru_bits = (vcpu->arch.pkru >> (pte_pkey * 2)) & 3;
/* clear present bit, replace PFEC.RSVD with ACC_USER_MASK. */
offset = (pfec & ~1) +
to_svm(vcpu)->vmcb->save.rflags = rflags;
}
-static u32 svm_get_pkru(struct kvm_vcpu *vcpu)
-{
- return 0;
-}
-
static void svm_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg)
{
switch (reg) {
.get_rflags = svm_get_rflags,
.set_rflags = svm_set_rflags,
- .get_pkru = svm_get_pkru,
-
.tlb_flush = svm_flush_tlb,
.run = svm_vcpu_run,
u64 current_tsc_ratio;
- bool guest_pkru_valid;
- u32 guest_pkru;
u32 host_pkru;
/*
to_vmx(vcpu)->emulation_required = emulation_required(vcpu);
}
-static u32 vmx_get_pkru(struct kvm_vcpu *vcpu)
-{
- return to_vmx(vcpu)->guest_pkru;
-}
-
static u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
{
u32 interruptibility = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
vmx_set_interrupt_shadow(vcpu, 0);
- if (vmx->guest_pkru_valid)
- __write_pkru(vmx->guest_pkru);
+ if (static_cpu_has(X86_FEATURE_PKU) &&
+ kvm_read_cr4_bits(vcpu, X86_CR4_PKE) &&
+ vcpu->arch.pkru != vmx->host_pkru)
+ __write_pkru(vcpu->arch.pkru);
atomic_switch_perf_msrs(vmx);
debugctlmsr = get_debugctlmsr();
* back on host, so it is safe to read guest PKRU from current
* XSAVE.
*/
- if (boot_cpu_has(X86_FEATURE_OSPKE)) {
- vmx->guest_pkru = __read_pkru();
- if (vmx->guest_pkru != vmx->host_pkru) {
- vmx->guest_pkru_valid = true;
+ if (static_cpu_has(X86_FEATURE_PKU) &&
+ kvm_read_cr4_bits(vcpu, X86_CR4_PKE)) {
+ vcpu->arch.pkru = __read_pkru();
+ if (vcpu->arch.pkru != vmx->host_pkru)
__write_pkru(vmx->host_pkru);
- } else
- vmx->guest_pkru_valid = false;
}
/*
.get_rflags = vmx_get_rflags,
.set_rflags = vmx_set_rflags,
- .get_pkru = vmx_get_pkru,
-
.tlb_flush = vmx_flush_tlb,
.run = vmx_vcpu_run,
u32 size, offset, ecx, edx;
cpuid_count(XSTATE_CPUID, index,
&size, &offset, &ecx, &edx);
- memcpy(dest + offset, src, size);
+ if (feature == XFEATURE_MASK_PKRU)
+ memcpy(dest + offset, &vcpu->arch.pkru,
+ sizeof(vcpu->arch.pkru));
+ else
+ memcpy(dest + offset, src, size);
+
}
valid -= feature;
u32 size, offset, ecx, edx;
cpuid_count(XSTATE_CPUID, index,
&size, &offset, &ecx, &edx);
- memcpy(dest, src + offset, size);
+ if (feature == XFEATURE_MASK_PKRU)
+ memcpy(&vcpu->arch.pkru, src + offset,
+ sizeof(vcpu->arch.pkru));
+ else
+ memcpy(dest, src + offset, size);
}
valid -= feature;
*/
vcpu->guest_fpu_loaded = 1;
__kernel_fpu_begin();
- __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state);
+ /* PKRU is separately restored in kvm_x86_ops->run. */
+ __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state,
+ ~XFEATURE_MASK_PKRU);
trace_kvm_fpu(1);
}
QUEUE_FLAG_NAME(STATS),
QUEUE_FLAG_NAME(POLL_STATS),
QUEUE_FLAG_NAME(REGISTERED),
+ QUEUE_FLAG_NAME(SCSI_PASSTHROUGH),
+ QUEUE_FLAG_NAME(QUIESCED),
};
#undef QUEUE_FLAG_NAME
CMD_FLAG_NAME(RAHEAD),
CMD_FLAG_NAME(BACKGROUND),
CMD_FLAG_NAME(NOUNMAP),
+ CMD_FLAG_NAME(NOWAIT),
};
#undef CMD_FLAG_NAME
} \
} while (0)
+static inline unsigned int throtl_bio_data_size(struct bio *bio)
+{
+ /* assume it's one sector */
+ if (unlikely(bio_op(bio) == REQ_OP_DISCARD))
+ return 512;
+ return bio->bi_iter.bi_size;
+}
+
static void throtl_qnode_init(struct throtl_qnode *qn, struct throtl_grp *tg)
{
INIT_LIST_HEAD(&qn->node);
bool rw = bio_data_dir(bio);
u64 bytes_allowed, extra_bytes, tmp;
unsigned long jiffy_elapsed, jiffy_wait, jiffy_elapsed_rnd;
+ unsigned int bio_size = throtl_bio_data_size(bio);
jiffy_elapsed = jiffy_elapsed_rnd = jiffies - tg->slice_start[rw];
do_div(tmp, HZ);
bytes_allowed = tmp;
- if (tg->bytes_disp[rw] + bio->bi_iter.bi_size <= bytes_allowed) {
+ if (tg->bytes_disp[rw] + bio_size <= bytes_allowed) {
if (wait)
*wait = 0;
return true;
}
/* Calc approx time to dispatch */
- extra_bytes = tg->bytes_disp[rw] + bio->bi_iter.bi_size - bytes_allowed;
+ extra_bytes = tg->bytes_disp[rw] + bio_size - bytes_allowed;
jiffy_wait = div64_u64(extra_bytes * HZ, tg_bps_limit(tg, rw));
if (!jiffy_wait)
static void throtl_charge_bio(struct throtl_grp *tg, struct bio *bio)
{
bool rw = bio_data_dir(bio);
+ unsigned int bio_size = throtl_bio_data_size(bio);
/* Charge the bio to the group */
- tg->bytes_disp[rw] += bio->bi_iter.bi_size;
+ tg->bytes_disp[rw] += bio_size;
tg->io_disp[rw]++;
- tg->last_bytes_disp[rw] += bio->bi_iter.bi_size;
+ tg->last_bytes_disp[rw] += bio_size;
tg->last_io_disp[rw]++;
/*
#include <scsi/scsi_cmnd.h>
/**
- * bsg_destroy_job - routine to teardown/delete a bsg job
+ * bsg_teardown_job - routine to teardown a bsg job
* @job: bsg_job that is to be torn down
*/
-static void bsg_destroy_job(struct kref *kref)
+static void bsg_teardown_job(struct kref *kref)
{
struct bsg_job *job = container_of(kref, struct bsg_job, kref);
struct request *rq = job->req;
- blk_end_request_all(rq, BLK_STS_OK);
-
put_device(job->dev); /* release reference for the request */
kfree(job->request_payload.sg_list);
kfree(job->reply_payload.sg_list);
- kfree(job);
+
+ blk_end_request_all(rq, BLK_STS_OK);
}
void bsg_job_put(struct bsg_job *job)
{
- kref_put(&job->kref, bsg_destroy_job);
+ kref_put(&job->kref, bsg_teardown_job);
}
EXPORT_SYMBOL_GPL(bsg_job_put);
*/
static void bsg_softirq_done(struct request *rq)
{
- struct bsg_job *job = rq->special;
+ struct bsg_job *job = blk_mq_rq_to_pdu(rq);
bsg_job_put(job);
}
}
/**
- * bsg_create_job - create the bsg_job structure for the bsg request
+ * bsg_prepare_job - create the bsg_job structure for the bsg request
* @dev: device that is being sent the bsg request
* @req: BSG request that needs a job structure
*/
-static int bsg_create_job(struct device *dev, struct request *req)
+static int bsg_prepare_job(struct device *dev, struct request *req)
{
struct request *rsp = req->next_rq;
- struct request_queue *q = req->q;
struct scsi_request *rq = scsi_req(req);
- struct bsg_job *job;
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
int ret;
- BUG_ON(req->special);
-
- job = kzalloc(sizeof(struct bsg_job) + q->bsg_job_size, GFP_KERNEL);
- if (!job)
- return -ENOMEM;
-
- req->special = job;
- job->req = req;
- if (q->bsg_job_size)
- job->dd_data = (void *)&job[1];
job->request = rq->cmd;
job->request_len = rq->cmd_len;
- job->reply = rq->sense;
- job->reply_len = SCSI_SENSE_BUFFERSIZE; /* Size of sense buffer
- * allocated */
+
if (req->bio) {
ret = bsg_map_buffer(&job->request_payload, req);
if (ret)
{
struct device *dev = q->queuedata;
struct request *req;
- struct bsg_job *job;
int ret;
if (!get_device(dev))
break;
spin_unlock_irq(q->queue_lock);
- ret = bsg_create_job(dev, req);
+ ret = bsg_prepare_job(dev, req);
if (ret) {
scsi_req(req)->result = ret;
blk_end_request_all(req, BLK_STS_OK);
continue;
}
- job = req->special;
- ret = q->bsg_job_fn(job);
+ ret = q->bsg_job_fn(blk_mq_rq_to_pdu(req));
spin_lock_irq(q->queue_lock);
if (ret)
break;
spin_lock_irq(q->queue_lock);
}
+static int bsg_init_rq(struct request_queue *q, struct request *req, gfp_t gfp)
+{
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
+ struct scsi_request *sreq = &job->sreq;
+
+ memset(job, 0, sizeof(*job));
+
+ scsi_req_init(sreq);
+ sreq->sense_len = SCSI_SENSE_BUFFERSIZE;
+ sreq->sense = kzalloc(sreq->sense_len, gfp);
+ if (!sreq->sense)
+ return -ENOMEM;
+
+ job->req = req;
+ job->reply = sreq->sense;
+ job->reply_len = sreq->sense_len;
+ job->dd_data = job + 1;
+
+ return 0;
+}
+
+static void bsg_exit_rq(struct request_queue *q, struct request *req)
+{
+ struct bsg_job *job = blk_mq_rq_to_pdu(req);
+ struct scsi_request *sreq = &job->sreq;
+
+ kfree(sreq->sense);
+}
+
/**
* bsg_setup_queue - Create and add the bsg hooks so we can receive requests
* @dev: device to attach bsg device to
q = blk_alloc_queue(GFP_KERNEL);
if (!q)
return ERR_PTR(-ENOMEM);
- q->cmd_size = sizeof(struct scsi_request);
+ q->cmd_size = sizeof(struct bsg_job) + dd_job_size;
+ q->init_rq_fn = bsg_init_rq;
+ q->exit_rq_fn = bsg_exit_rq;
q->request_fn = bsg_request_fn;
ret = blk_init_allocated_queue(q);
goto out_cleanup_queue;
q->queuedata = dev;
- q->bsg_job_size = dd_job_size;
q->bsg_job_fn = job_fn;
queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
queue_flag_set_unlocked(QUEUE_FLAG_SCSI_PASSTHROUGH, q);
}
static int
-figure_loop_size(struct loop_device *lo, loff_t offset, loff_t sizelimit,
- loff_t logical_blocksize)
+figure_loop_size(struct loop_device *lo, loff_t offset, loff_t sizelimit)
{
loff_t size = get_size(offset, sizelimit, lo->lo_backing_file);
sector_t x = (sector_t)size;
lo->lo_offset = offset;
if (lo->lo_sizelimit != sizelimit)
lo->lo_sizelimit = sizelimit;
- if (lo->lo_flags & LO_FLAGS_BLOCKSIZE) {
- lo->lo_logical_blocksize = logical_blocksize;
- blk_queue_physical_block_size(lo->lo_queue, lo->lo_blocksize);
- blk_queue_logical_block_size(lo->lo_queue,
- lo->lo_logical_blocksize);
- }
set_capacity(lo->lo_disk, x);
bd_set_size(bdev, (loff_t)get_capacity(bdev->bd_disk) << 9);
/* let user-space know about the new size */
struct file *file = lo->lo_backing_file;
struct inode *inode = file->f_mapping->host;
struct request_queue *q = lo->lo_queue;
- int lo_bits = 9;
/*
* We use punch hole to reclaim the free space used by the
q->limits.discard_granularity = inode->i_sb->s_blocksize;
q->limits.discard_alignment = 0;
- if (lo->lo_flags & LO_FLAGS_BLOCKSIZE)
- lo_bits = blksize_bits(lo->lo_logical_blocksize);
- blk_queue_max_discard_sectors(q, UINT_MAX >> lo_bits);
- blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> lo_bits);
+ blk_queue_max_discard_sectors(q, UINT_MAX >> 9);
+ blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> 9);
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
}
lo->use_dio = false;
lo->lo_blocksize = lo_blocksize;
- lo->lo_logical_blocksize = 512;
lo->lo_device = bdev;
lo->lo_flags = lo_flags;
lo->lo_backing_file = file;
int err;
struct loop_func_table *xfer;
kuid_t uid = current_uid();
- int lo_flags = lo->lo_flags;
if (lo->lo_encrypt_key_size &&
!uid_eq(lo->lo_key_owner, uid) &&
if (err)
goto exit;
- if (info->lo_flags & LO_FLAGS_BLOCKSIZE) {
- if (!(lo->lo_flags & LO_FLAGS_BLOCKSIZE))
- lo->lo_logical_blocksize = 512;
- lo->lo_flags |= LO_FLAGS_BLOCKSIZE;
- if (LO_INFO_BLOCKSIZE(info) != 512 &&
- LO_INFO_BLOCKSIZE(info) != 1024 &&
- LO_INFO_BLOCKSIZE(info) != 2048 &&
- LO_INFO_BLOCKSIZE(info) != 4096)
- return -EINVAL;
- if (LO_INFO_BLOCKSIZE(info) > lo->lo_blocksize)
- return -EINVAL;
- }
-
if (lo->lo_offset != info->lo_offset ||
- lo->lo_sizelimit != info->lo_sizelimit ||
- lo->lo_flags != lo_flags ||
- ((lo->lo_flags & LO_FLAGS_BLOCKSIZE) &&
- lo->lo_logical_blocksize != LO_INFO_BLOCKSIZE(info))) {
- if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit,
- LO_INFO_BLOCKSIZE(info))) {
+ lo->lo_sizelimit != info->lo_sizelimit) {
+ if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
err = -EFBIG;
goto exit;
}
if (unlikely(lo->lo_state != Lo_bound))
return -ENXIO;
- return figure_loop_size(lo, lo->lo_offset, lo->lo_sizelimit,
- lo->lo_logical_blocksize);
+ return figure_loop_size(lo, lo->lo_offset, lo->lo_sizelimit);
}
static int loop_set_dio(struct loop_device *lo, unsigned long arg)
struct file * lo_backing_file;
struct block_device *lo_device;
unsigned lo_blocksize;
- unsigned lo_logical_blocksize;
void *key_data;
gfp_t old_gfp_mask;
struct request_queue *q = vblk->disk->queue;
char cap_str_2[10], cap_str_10[10];
char *envp[] = { "RESIZE=1", NULL };
+ unsigned long long nblocks;
u64 capacity;
/* Host must always specify the capacity. */
capacity = (sector_t)-1;
}
- string_get_size(capacity, queue_logical_block_size(q),
+ nblocks = DIV_ROUND_UP_ULL(capacity, queue_logical_block_size(q) >> 9);
+
+ string_get_size(nblocks, queue_logical_block_size(q),
STRING_UNITS_2, cap_str_2, sizeof(cap_str_2));
- string_get_size(capacity, queue_logical_block_size(q),
+ string_get_size(nblocks, queue_logical_block_size(q),
STRING_UNITS_10, cap_str_10, sizeof(cap_str_10));
dev_notice(&vdev->dev,
- "new size: %llu %d-byte logical blocks (%s/%s)\n",
- (unsigned long long)capacity,
- queue_logical_block_size(q),
- cap_str_10, cap_str_2);
+ "new size: %llu %d-byte logical blocks (%s/%s)\n",
+ nblocks,
+ queue_logical_block_size(q),
+ cap_str_10,
+ cap_str_2);
set_capacity(vblk->disk, capacity);
revalidate_disk(vblk->disk);
tdc->chan_addr = tdma->base_addr + ADMA_CH_REG_OFFSET(i);
tdc->irq = of_irq_get(pdev->dev.of_node, i);
- if (tdc->irq < 0) {
- ret = tdc->irq;
+ if (tdc->irq <= 0) {
+ ret = tdc->irq ?: -ENXIO;
goto irq_dispose;
}
if (config->funcs->atomic_check)
ret = config->funcs->atomic_check(state->dev, state);
+ if (ret)
+ return ret;
+
if (!state->allow_modeset) {
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
if (drm_atomic_crtc_needs_modeset(crtc_state)) {
}
}
- return ret;
+ return 0;
}
EXPORT_SYMBOL(drm_atomic_check_only);
struct drm_atomic_state *state;
struct drm_modeset_acquire_ctx ctx;
struct drm_plane *plane;
- struct drm_out_fence_state *fence_state = NULL;
+ struct drm_out_fence_state *fence_state;
unsigned plane_mask;
int ret = 0;
- unsigned int i, j, num_fences = 0;
+ unsigned int i, j, num_fences;
/* disallow for drivers not supporting atomic: */
if (!drm_core_check_feature(dev, DRIVER_ATOMIC))
plane_mask = 0;
copied_objs = 0;
copied_props = 0;
+ fence_state = NULL;
+ num_fences = 0;
for (i = 0; i < arg->count_objs; i++) {
uint32_t obj_id, count_props;
struct drm_gem_object *obj = ptr;
struct drm_device *dev = obj->dev;
+ if (dev->driver->gem_close_object)
+ dev->driver->gem_close_object(obj, file_priv);
+
if (drm_core_check_feature(dev, DRIVER_PRIME))
drm_gem_remove_prime_handles(obj, file_priv);
drm_vma_node_revoke(&obj->vma_node, file_priv);
- if (dev->driver->gem_close_object)
- dev->driver->gem_close_object(obj, file_priv);
-
drm_gem_object_handle_put_unlocked(obj);
return 0;
crtc = drm_crtc_find(dev, plane_req->crtc_id);
if (!crtc) {
+ drm_framebuffer_put(fb);
DRM_DEBUG_KMS("Unknown crtc ID %d\n",
plane_req->crtc_id);
return -ENOENT;
unmap_src:
i915_gem_object_unpin_map(obj);
put_obj:
- i915_gem_object_put(wa_ctx->indirect_ctx.obj);
+ i915_gem_object_put(obj);
return ret;
}
bool is_dvi, is_hdmi, is_dp, is_edp, is_crt;
uint8_t aux_channel, ddc_pin;
/* Each DDI port can have more than one value on the "DVO Port" field,
- * so look for all the possible values for each port and abort if more
- * than one is found. */
+ * so look for all the possible values for each port.
+ */
int dvo_ports[][3] = {
{DVO_PORT_HDMIA, DVO_PORT_DPA, -1},
{DVO_PORT_HDMIB, DVO_PORT_DPB, -1},
{DVO_PORT_CRT, DVO_PORT_HDMIE, DVO_PORT_DPE},
};
- /* Find the child device to use, abort if more than one found. */
+ /*
+ * Find the first child device to reference the port, report if more
+ * than one found.
+ */
for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
it = dev_priv->vbt.child_dev + i;
if (it->common.dvo_port == dvo_ports[port][j]) {
if (child) {
- DRM_DEBUG_KMS("More than one child device for port %c in VBT.\n",
+ DRM_DEBUG_KMS("More than one child device for port %c in VBT, using the first.\n",
port_name(port));
- return;
+ } else {
+ child = it;
}
- child = it;
}
}
}
struct intel_encoder *encoder = connector->encoder;
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
struct mipi_dsi_device *dsi_device;
- u8 data;
+ u8 data = 0;
enum port port;
/* FIXME: Need to take care of 16 bit brightness level */
if (!gpio_desc) {
gpio_desc = devm_gpiod_get_index(dev_priv->drm.dev,
- "panel", gpio_index,
+ NULL, gpio_index,
value ? GPIOD_OUT_LOW :
GPIOD_OUT_HIGH);
return ret;
}
+static u8 gtiir[] = {
+ [RCS] = 0,
+ [BCS] = 0,
+ [VCS] = 1,
+ [VCS2] = 1,
+ [VECS] = 3,
+};
+
static int gen8_init_common_ring(struct intel_engine_cs *engine)
{
struct drm_i915_private *dev_priv = engine->i915;
DRM_DEBUG_DRIVER("Execlists enabled for %s\n", engine->name);
- /* After a GPU reset, we may have requests to replay */
+ GEM_BUG_ON(engine->id >= ARRAY_SIZE(gtiir));
+
+ /*
+ * Clear any pending interrupt state.
+ *
+ * We do it twice out of paranoia that some of the IIR are double
+ * buffered, and if we only reset it once there may still be
+ * an interrupt pending.
+ */
+ I915_WRITE(GEN8_GT_IIR(gtiir[engine->id]),
+ GT_CONTEXT_SWITCH_INTERRUPT << engine->irq_shift);
+ I915_WRITE(GEN8_GT_IIR(gtiir[engine->id]),
+ GT_CONTEXT_SWITCH_INTERRUPT << engine->irq_shift);
clear_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
+ /* After a GPU reset, we may have requests to replay */
submit = false;
for (n = 0; n < ARRAY_SIZE(engine->execlist_port); n++) {
if (!port_isset(&port[n]))
struct drm_device *dev = intel_dig_port->base.base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
- if (!IS_GEN9(dev_priv)) {
- DRM_ERROR("LSPCON is supported on GEN9 only\n");
+ if (!HAS_LSPCON(dev_priv)) {
+ DRM_ERROR("LSPCON is not supported on this platform\n");
return false;
}
return;
}
+ ics = ipu_drm_fourcc_to_colorspace(fb->format->format);
switch (ipu_plane->dp_flow) {
case IPU_DP_FLOW_SYNC_BG:
- ipu_dp_setup_channel(ipu_plane->dp,
- IPUV3_COLORSPACE_RGB,
- IPUV3_COLORSPACE_RGB);
+ ipu_dp_setup_channel(ipu_plane->dp, ics, IPUV3_COLORSPACE_RGB);
ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
break;
case IPU_DP_FLOW_SYNC_FG:
- ics = ipu_drm_fourcc_to_colorspace(state->fb->format->format);
ipu_dp_setup_channel(ipu_plane->dp, ics,
IPUV3_COLORSPACE_UNKNOWN);
/* Enable local alpha on partial plane */
static int rockchip_drm_sys_suspend(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
- struct rockchip_drm_private *priv = drm->dev_private;
+ struct rockchip_drm_private *priv;
+
+ if (!drm)
+ return 0;
drm_kms_helper_poll_disable(drm);
rockchip_drm_fb_suspend(drm);
+ priv = drm->dev_private;
priv->state = drm_atomic_helper_suspend(drm);
if (IS_ERR(priv->state)) {
rockchip_drm_fb_resume(drm);
static int rockchip_drm_sys_resume(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
- struct rockchip_drm_private *priv = drm->dev_private;
+ struct rockchip_drm_private *priv;
+
+ if (!drm)
+ return 0;
+ priv = drm->dev_private;
drm_atomic_helper_resume(drm, priv->state);
rockchip_drm_fb_resume(drm);
drm_kms_helper_poll_enable(drm);
#include "sun4i_framebuffer.h"
#include "sun4i_tcon.h"
+static void sun4i_drv_lastclose(struct drm_device *dev)
+{
+ struct sun4i_drv *drv = dev->dev_private;
+
+ drm_fbdev_cma_restore_mode(drv->fbdev);
+}
+
DEFINE_DRM_GEM_CMA_FOPS(sun4i_drv_fops);
static struct drm_driver sun4i_drv_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC,
/* Generic Operations */
+ .lastclose = sun4i_drv_lastclose,
.fops = &sun4i_drv_fops,
.name = "sun4i-drm",
.desc = "Allwinner sun4i Display Engine",
config IMX_IPUV3_CORE
tristate "IPUv3 core support"
depends on SOC_IMX5 || SOC_IMX6Q || ARCH_MULTIPLATFORM
+ depends on DRM || !DRM # if DRM=m, this can't be 'y'
select GENERIC_IRQ_CHIP
help
Choose this if you have a i.MX5/6 system and want to use the Image
}
/* We are in an invalid state; reset bus to a known state. */
- if (!bus->msgs && bus->master_state != ASPEED_I2C_MASTER_STOP) {
+ if (!bus->msgs) {
dev_err(bus->dev, "bus in unknown state");
bus->cmd_err = -EIO;
- aspeed_i2c_do_stop(bus);
+ if (bus->master_state != ASPEED_I2C_MASTER_STOP)
+ aspeed_i2c_do_stop(bus);
goto out_no_complete;
}
msg = &bus->msgs[bus->msgs_index];
dev->functionality = I2C_FUNC_SLAVE | DW_IC_DEFAULT_FUNCTIONALITY;
dev->slave_cfg = DW_IC_CON_RX_FIFO_FULL_HLD_CTRL |
- DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED |
- DW_IC_CON_SPEED_FAST;
+ DW_IC_CON_RESTART_EN | DW_IC_CON_STOP_DET_IFADDRESSED;
dev->mode = DW_IC_SLAVE;
#endif
#ifdef CONFIG_PM
-static int dw_i2c_plat_suspend(struct device *dev)
+static int dw_i2c_plat_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int dw_i2c_plat_suspend(struct device *dev)
+{
+ pm_runtime_resume(dev);
+ return dw_i2c_plat_runtime_suspend(dev);
+}
+#endif
+
static const struct dev_pm_ops dw_i2c_dev_pm_ops = {
.prepare = dw_i2c_plat_prepare,
.complete = dw_i2c_plat_complete,
SET_SYSTEM_SLEEP_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume)
- SET_RUNTIME_PM_OPS(dw_i2c_plat_suspend, dw_i2c_plat_resume, NULL)
+ SET_RUNTIME_PM_OPS(dw_i2c_plat_runtime_suspend,
+ dw_i2c_plat_resume,
+ NULL)
};
#define DW_I2C_DEV_PMOPS (&dw_i2c_dev_pm_ops)
return -EBUSY;
if (slave->flags & I2C_CLIENT_TEN)
return -EAFNOSUPPORT;
+ pm_runtime_get_sync(dev->dev);
+
/*
* Set slave address in the IC_SAR register,
* the address to which the DW_apb_i2c responds.
dev->disable_int(dev);
dev->disable(dev);
dev->slave = NULL;
+ pm_runtime_put(dev->dev);
return 0;
}
slave_activity = ((dw_readl(dev, DW_IC_STATUS) &
DW_IC_STATUS_SLAVE_ACTIVITY) >> 6);
- if (!enabled || !(raw_stat & ~DW_IC_INTR_ACTIVITY))
+ if (!enabled || !(raw_stat & ~DW_IC_INTR_ACTIVITY) || !dev->slave)
return 0;
dev_dbg(dev->dev,
ret = i2c_add_numbered_adapter(adap);
if (ret)
dev_err(dev->dev, "failure adding adapter: %d\n", ret);
- pm_runtime_put_noidle(dev->dev);
return ret;
}
iounmap(pd->reg);
err_res:
- release_resource(pd->ioarea);
- kfree(pd->ioarea);
+ release_mem_region(pd->ioarea->start, size);
err:
kfree(pd);
i2c_del_adapter(&pd->adap);
iounmap(pd->reg);
- release_resource(pd->ioarea);
- kfree(pd->ioarea);
+ release_mem_region(pd->ioarea->start, resource_size(pd->ioarea));
kfree(pd);
return 0;
}
/*
- * An I2C ID table is not mandatory, if and only if, a suitable Device
- * Tree match table entry is supplied for the probing device.
+ * An I2C ID table is not mandatory, if and only if, a suitable OF
+ * or ACPI ID table is supplied for the probing device.
*/
if (!driver->id_table &&
!i2c_acpi_match_device(dev->driver->acpi_match_table, client) &&
R1_CC_ERROR | /* Card controller error */ \
R1_ERROR) /* General/unknown error */
-static bool mmc_blk_has_cmd_err(struct mmc_command *cmd)
+static void mmc_blk_eval_resp_error(struct mmc_blk_request *brq)
{
- if (!cmd->error && cmd->resp[0] & CMD_ERRORS)
- cmd->error = -EIO;
+ u32 val;
- return cmd->error;
+ /*
+ * Per the SD specification(physical layer version 4.10)[1],
+ * section 4.3.3, it explicitly states that "When the last
+ * block of user area is read using CMD18, the host should
+ * ignore OUT_OF_RANGE error that may occur even the sequence
+ * is correct". And JESD84-B51 for eMMC also has a similar
+ * statement on section 6.8.3.
+ *
+ * Multiple block read/write could be done by either predefined
+ * method, namely CMD23, or open-ending mode. For open-ending mode,
+ * we should ignore the OUT_OF_RANGE error as it's normal behaviour.
+ *
+ * However the spec[1] doesn't tell us whether we should also
+ * ignore that for predefined method. But per the spec[1], section
+ * 4.15 Set Block Count Command, it says"If illegal block count
+ * is set, out of range error will be indicated during read/write
+ * operation (For example, data transfer is stopped at user area
+ * boundary)." In another word, we could expect a out of range error
+ * in the response for the following CMD18/25. And if argument of
+ * CMD23 + the argument of CMD18/25 exceed the max number of blocks,
+ * we could also expect to get a -ETIMEDOUT or any error number from
+ * the host drivers due to missing data response(for write)/data(for
+ * read), as the cards will stop the data transfer by itself per the
+ * spec. So we only need to check R1_OUT_OF_RANGE for open-ending mode.
+ */
+
+ if (!brq->stop.error) {
+ bool oor_with_open_end;
+ /* If there is no error yet, check R1 response */
+
+ val = brq->stop.resp[0] & CMD_ERRORS;
+ oor_with_open_end = val & R1_OUT_OF_RANGE && !brq->mrq.sbc;
+
+ if (val && !oor_with_open_end)
+ brq->stop.error = -EIO;
+ }
}
static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
* stop.error indicates a problem with the stop command. Data
* may have been transferred, or may still be transferring.
*/
- if (brq->sbc.error || brq->cmd.error || mmc_blk_has_cmd_err(&brq->stop) ||
- brq->data.error) {
+
+ mmc_blk_eval_resp_error(brq);
+
+ if (brq->sbc.error || brq->cmd.error ||
+ brq->stop.error || brq->data.error) {
switch (mmc_blk_cmd_recovery(card, req, brq, &ecc_err, &gen_err)) {
case ERR_RETRY:
return MMC_BLK_RETRY;
ret = atmel_smc_cs_conf_set_timing(smcconf,
ATMEL_HSMC_TIMINGS_TADL_SHIFT,
ncycles);
- if (ret)
+ /*
+ * Version 4 of the ONFI spec mandates that tADL be at least 400
+ * nanoseconds, but, depending on the master clock rate, 400 ns may not
+ * fit in the tADL field of the SMC reg. We need to relax the check and
+ * accept the -ERANGE return code.
+ *
+ * Note that previous versions of the ONFI spec had a lower tADL_min
+ * (100 or 200 ns). It's not clear why this timing constraint got
+ * increased but it seems most NANDs are fine with values lower than
+ * 400ns, so we should be safe.
+ */
+ if (ret && ret != -ERANGE)
return ret;
ncycles = DIV_ROUND_UP(conf->timings.sdr.tAR_min, mckperiodps);
return 0;
err_exit:
+ nandsim_debugfs_remove(nand);
free_nandsim(nand);
nand_release(nsmtd);
for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
const char *name = dev_name(&vp_dev->vdev.dev);
+ unsigned flags = PCI_IRQ_MSIX;
unsigned i, v;
int err = -ENOMEM;
GFP_KERNEL))
goto error;
+ if (desc) {
+ flags |= PCI_IRQ_AFFINITY;
+ desc->pre_vectors++; /* virtio config vector */
+ }
+
err = pci_alloc_irq_vectors_affinity(vp_dev->pci_dev, nvectors,
- nvectors, PCI_IRQ_MSIX |
- (desc ? PCI_IRQ_AFFINITY : 0),
- desc);
+ nvectors, flags, desc);
if (err < 0)
goto error;
vp_dev->msix_enabled = 1;
}
/*
+ * Don't allow path components longer than the server max.
* Don't allow the separator character in a path component.
* The VFS will not allow "/", but "\" is allowed by posix.
*/
static int
-check_name(struct dentry *direntry)
+check_name(struct dentry *direntry, struct cifs_tcon *tcon)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
int i;
+ if (unlikely(direntry->d_name.len >
+ tcon->fsAttrInfo.MaxPathNameComponentLength))
+ return -ENAMETOOLONG;
+
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS)) {
for (i = 0; i < direntry->d_name.len; i++) {
if (direntry->d_name.name[i] == '\\') {
return finish_no_open(file, res);
}
- rc = check_name(direntry);
- if (rc)
- return rc;
-
xid = get_xid();
cifs_dbg(FYI, "parent inode = 0x%p name is: %pd and dentry = 0x%p\n",
}
tcon = tlink_tcon(tlink);
+
+ rc = check_name(direntry, tcon);
+ if (rc)
+ goto out_free_xid;
+
server = tcon->ses->server;
if (server->ops->new_lease_key)
}
pTcon = tlink_tcon(tlink);
- rc = check_name(direntry);
+ rc = check_name(direntry, pTcon);
if (rc)
goto lookup_out;
kst->f_bsize = le32_to_cpu(pfs_inf->BytesPerSector) *
le32_to_cpu(pfs_inf->SectorsPerAllocationUnit);
kst->f_blocks = le64_to_cpu(pfs_inf->TotalAllocationUnits);
- kst->f_bfree = le64_to_cpu(pfs_inf->ActualAvailableAllocationUnits);
- kst->f_bavail = le64_to_cpu(pfs_inf->CallerAvailableAllocationUnits);
+ kst->f_bfree = kst->f_bavail =
+ le64_to_cpu(pfs_inf->CallerAvailableAllocationUnits);
return;
}
trace_dax_pmd_fault(inode, vmf, max_pgoff, 0);
+ /*
+ * Make sure that the faulting address's PMD offset (color) matches
+ * the PMD offset from the start of the file. This is necessary so
+ * that a PMD range in the page table overlaps exactly with a PMD
+ * range in the radix tree.
+ */
+ if ((vmf->pgoff & PG_PMD_COLOUR) !=
+ ((vmf->address >> PAGE_SHIFT) & PG_PMD_COLOUR))
+ goto fallback;
+
/* Fall back to PTEs if we're going to COW */
if (write && !(vma->vm_flags & VM_SHARED))
goto fallback;
argp->p = page_address(argp->pagelist[0]);
argp->pagelist++;
if (argp->pagelen < PAGE_SIZE) {
- argp->end = argp->p + (argp->pagelen>>2);
+ argp->end = argp->p + XDR_QUADLEN(argp->pagelen);
argp->pagelen = 0;
} else {
argp->end = argp->p + (PAGE_SIZE>>2);
argp->pagelen -= pages * PAGE_SIZE;
len -= pages * PAGE_SIZE;
- argp->p = (__be32 *)page_address(argp->pagelist[0]);
- argp->pagelist++;
- argp->end = argp->p + XDR_QUADLEN(PAGE_SIZE);
+ next_decode_page(argp);
}
argp->p += XDR_QUADLEN(len);
#if defined(CONFIG_BLK_DEV_BSG)
bsg_job_fn *bsg_job_fn;
- int bsg_job_size;
struct bsg_class_device bsg_dev;
#endif
#define _BLK_BSG_
#include <linux/blkdev.h>
+#include <scsi/scsi_request.h>
struct request;
struct device;
};
struct bsg_job {
+ struct scsi_request sreq;
struct device *dev;
struct request *req;
LO_FLAGS_AUTOCLEAR = 4,
LO_FLAGS_PARTSCAN = 8,
LO_FLAGS_DIRECT_IO = 16,
- LO_FLAGS_BLOCKSIZE = 32,
};
#include <asm/posix_types.h> /* for __kernel_old_dev_t */
__u64 lo_init[2];
};
-#define LO_INFO_BLOCKSIZE(l) (l)->lo_init[0]
-
/*
* Loop filter types
*/
mm_init_cpumask(mm);
mm_init_aio(mm);
mm_init_owner(mm, p);
+ RCU_INIT_POINTER(mm->exe_file, NULL);
mmu_notifier_mm_init(mm);
init_tlb_flush_pending(mm);
#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
pte_offset_map_lock(mm, pmd, addr, &ptl);
goto out;
}
- put_page(page);
unlock_page(page);
+ put_page(page);
pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
pte--;
addr -= PAGE_SIZE;
__memblock_free_late(addr, size);
}
- if (memblock.memory.regions == memblock_memory_init_regions) {
+ if (memblock.memory.regions != memblock_memory_init_regions) {
addr = __pa(memblock.memory.regions);
size = PAGE_ALIGN(sizeof(struct memblock_region) *
memblock.memory.max);
#include <linux/kthread.h>
#include <linux/memcontrol.h>
#include <linux/ftrace.h>
+#include <linux/nmi.h>
#include <asm/sections.h>
#include <asm/tlbflush.h>
#ifdef CONFIG_HIBERNATION
+/*
+ * Touch the watchdog for every WD_PAGE_COUNT pages.
+ */
+#define WD_PAGE_COUNT (128*1024)
+
void mark_free_pages(struct zone *zone)
{
- unsigned long pfn, max_zone_pfn;
+ unsigned long pfn, max_zone_pfn, page_count = WD_PAGE_COUNT;
unsigned long flags;
unsigned int order, t;
struct page *page;
if (pfn_valid(pfn)) {
page = pfn_to_page(pfn);
+ if (!--page_count) {
+ touch_nmi_watchdog();
+ page_count = WD_PAGE_COUNT;
+ }
+
if (page_zone(page) != zone)
continue;
unsigned long i;
pfn = page_to_pfn(page);
- for (i = 0; i < (1UL << order); i++)
+ for (i = 0; i < (1UL << order); i++) {
+ if (!--page_count) {
+ touch_nmi_watchdog();
+ page_count = WD_PAGE_COUNT;
+ }
swsusp_set_page_free(pfn_to_page(pfn + i));
+ }
}
}
spin_unlock_irqrestore(&zone->lock, flags);
}
#ifdef CONFIG_TRANSPARENT_HUGE_PAGECACHE
- if (has_transparent_hugepage() && shmem_huge < SHMEM_HUGE_DENY)
+ if (has_transparent_hugepage() && shmem_huge > SHMEM_HUGE_DENY)
SHMEM_SB(shm_mnt->mnt_sb)->huge = shmem_huge;
else
shmem_huge = 0; /* just in case it was patched */
return -EINVAL;
shmem_huge = huge;
- if (shmem_huge < SHMEM_HUGE_DENY)
+ if (shmem_huge > SHMEM_HUGE_DENY)
SHMEM_SB(shm_mnt->mnt_sb)->huge = shmem_huge;
return count;
}
dprintk("svc: socket %p(inet %p), busy=%d\n",
svsk, sk,
test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
+
+ /* Refer to svc_setup_socket() for details. */
+ rmb();
svsk->sk_odata(sk);
if (!test_and_set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags))
svc_xprt_enqueue(&svsk->sk_xprt);
if (svsk) {
dprintk("svc: socket %p(inet %p), write_space busy=%d\n",
svsk, sk, test_bit(XPT_BUSY, &svsk->sk_xprt.xpt_flags));
+
+ /* Refer to svc_setup_socket() for details. */
+ rmb();
svsk->sk_owspace(sk);
svc_xprt_enqueue(&svsk->sk_xprt);
}
dprintk("svc: socket %p TCP (listen) state change %d\n",
sk, sk->sk_state);
- if (svsk)
+ if (svsk) {
+ /* Refer to svc_setup_socket() for details. */
+ rmb();
svsk->sk_odata(sk);
+ }
+
/*
* This callback may called twice when a new connection
* is established as a child socket inherits everything
if (!svsk)
printk("svc: socket %p: no user data\n", sk);
else {
+ /* Refer to svc_setup_socket() for details. */
+ rmb();
svsk->sk_ostate(sk);
if (sk->sk_state != TCP_ESTABLISHED) {
set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags);
return ERR_PTR(err);
}
- inet->sk_user_data = svsk;
svsk->sk_sock = sock;
svsk->sk_sk = inet;
svsk->sk_ostate = inet->sk_state_change;
svsk->sk_odata = inet->sk_data_ready;
svsk->sk_owspace = inet->sk_write_space;
+ /*
+ * This barrier is necessary in order to prevent race condition
+ * with svc_data_ready(), svc_listen_data_ready() and others
+ * when calling callbacks above.
+ */
+ wmb();
+ inet->sk_user_data = svsk;
/* Initialize the socket */
if (sock->type == SOCK_DGRAM)
mutex_lock(&ue->card->user_ctl_lock);
change = ue->tlv_data_size != size;
if (!change)
- change = memcmp(ue->tlv_data, new_data, size);
+ change = memcmp(ue->tlv_data, new_data, size) != 0;
kfree(ue->tlv_data);
ue->tlv_data = new_data;
ue->tlv_data_size = size;
*/
void fw_iso_resources_free(struct fw_iso_resources *r)
{
- struct fw_card *card = fw_parent_device(r->unit)->card;
+ struct fw_card *card;
int bandwidth, channel;
+ /* Not initialized. */
+ if (r->unit == NULL)
+ return;
+ card = fw_parent_device(r->unit)->card;
+
mutex_lock(&r->mutex);
if (r->allocated) {
return;
error:
snd_motu_transaction_unregister(motu);
+ snd_motu_stream_destroy_duplex(motu);
snd_card_free(motu->card);
dev_info(&motu->unit->device,
"Sound card registration failed: %d\n", err);
SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
+ SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo G50-70", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
static const struct i2c_device_id rt5677_i2c_id[] = {
{ "rt5677", RT5677 },
{ "rt5676", RT5676 },
+ { "RT5677CE:00", RT5677 },
{ }
};
MODULE_DEVICE_TABLE(i2c, rt5677_i2c_id);
&& (requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
mdelay(20);
- /* Zoom R16/24 needs a tiny delay here, otherwise requests like
- * get/set frequency return as failed despite actually succeeding.
+ /* Zoom R16/24, Logitech H650e, Jabra 550a needs a tiny delay here,
+ * otherwise requests like get/set frequency return as failed despite
+ * actually succeeding.
*/
- if (chip->usb_id == USB_ID(0x1686, 0x00dd) &&
+ if ((chip->usb_id == USB_ID(0x1686, 0x00dd) ||
+ chip->usb_id == USB_ID(0x046d, 0x0a46) ||
+ chip->usb_id == USB_ID(0x0b0e, 0x0349)) &&
(requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
mdelay(1);
}
projects / mirror_ubuntu-artful-kernel.git / commitdiff