Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton: "14 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: byteswap: try to avoid __builtin_constant_p gcc bug lib/stackdepot: avoid to return 0 handle mm: fix kcompactd hang during memory offlining modpost: fix module autoloading for OF devices with generic compatible property proc: prevent accessing /proc/<PID>/environ until it's ready mm/zswap: provide unique zpool name mm: thp: kvm: fix memory corruption in KVM with THP enabled MAINTAINERS: fix Rajendra Nayak's address mm, cma: prevent nr_isolated_* counters from going negative mm: update min_free_kbytes from khugepaged after core initialization huge pagecache: mmap_sem is unlocked when truncation splits pmd rapidio/mport_cdev: fix uapi type definitions mm: memcontrol: let v2 cgroups follow changes in system swappiness mm: thp: correct split_huge_pages file permission
This commit is contained in:
Linus Torvalds
commit
9caa7e7848
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|
@ -7978,7 +7978,7 @@ F: arch/arm/*omap*/*pm*
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F: drivers/cpufreq/omap-cpufreq.c
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OMAP POWERDOMAIN SOC ADAPTATION LAYER SUPPORT
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M: Rajendra Nayak <rnayak@ti.com>
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M: Rajendra Nayak <rnayak@codeaurora.org>
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M: Paul Walmsley <paul@pwsan.com>
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L: linux-omap@vger.kernel.org
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S: Maintained
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@ -1004,7 +1004,7 @@ static bool transparent_hugepage_adjust(kvm_pfn_t *pfnp, phys_addr_t *ipap)
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kvm_pfn_t pfn = *pfnp;
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gfn_t gfn = *ipap >> PAGE_SHIFT;
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if (PageTransCompound(pfn_to_page(pfn))) {
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if (PageTransCompoundMap(pfn_to_page(pfn))) {
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unsigned long mask;
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/*
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* The address we faulted on is backed by a transparent huge
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@ -2823,7 +2823,7 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
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*/
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if (!is_error_noslot_pfn(pfn) && !kvm_is_reserved_pfn(pfn) &&
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level == PT_PAGE_TABLE_LEVEL &&
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PageTransCompound(pfn_to_page(pfn)) &&
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PageTransCompoundMap(pfn_to_page(pfn)) &&
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!mmu_gfn_lpage_is_disallowed(vcpu, gfn, PT_DIRECTORY_LEVEL)) {
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unsigned long mask;
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/*
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@ -4785,7 +4785,7 @@ static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm,
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*/
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if (sp->role.direct &&
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!kvm_is_reserved_pfn(pfn) &&
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PageTransCompound(pfn_to_page(pfn))) {
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PageTransCompoundMap(pfn_to_page(pfn))) {
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drop_spte(kvm, sptep);
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need_tlb_flush = 1;
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goto restart;
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@ -126,7 +126,7 @@ struct rio_mport_mapping {
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struct list_head node;
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struct mport_dev *md;
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enum rio_mport_map_dir dir;
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u32 rioid;
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u16 rioid;
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u64 rio_addr;
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dma_addr_t phys_addr; /* for mmap */
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void *virt_addr; /* kernel address, for dma_free_coherent */
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@ -137,7 +137,7 @@ struct rio_mport_mapping {
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struct rio_mport_dma_map {
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int valid;
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uint64_t length;
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u64 length;
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void *vaddr;
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dma_addr_t paddr;
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};
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@ -208,7 +208,7 @@ struct mport_cdev_priv {
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struct kfifo event_fifo;
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wait_queue_head_t event_rx_wait;
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spinlock_t fifo_lock;
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unsigned int event_mask; /* RIO_DOORBELL, RIO_PORTWRITE */
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u32 event_mask; /* RIO_DOORBELL, RIO_PORTWRITE */
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#ifdef CONFIG_RAPIDIO_DMA_ENGINE
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struct dma_chan *dmach;
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struct list_head async_list;
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@ -276,7 +276,8 @@ static int rio_mport_maint_rd(struct mport_cdev_priv *priv, void __user *arg,
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return -EFAULT;
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if ((maint_io.offset % 4) ||
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(maint_io.length == 0) || (maint_io.length % 4))
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(maint_io.length == 0) || (maint_io.length % 4) ||
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(maint_io.length + maint_io.offset) > RIO_MAINT_SPACE_SZ)
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return -EINVAL;
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buffer = vmalloc(maint_io.length);
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@ -298,7 +299,8 @@ static int rio_mport_maint_rd(struct mport_cdev_priv *priv, void __user *arg,
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offset += 4;
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}
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if (unlikely(copy_to_user(maint_io.buffer, buffer, maint_io.length)))
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if (unlikely(copy_to_user((void __user *)(uintptr_t)maint_io.buffer,
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buffer, maint_io.length)))
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ret = -EFAULT;
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out:
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vfree(buffer);
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@ -319,7 +321,8 @@ static int rio_mport_maint_wr(struct mport_cdev_priv *priv, void __user *arg,
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return -EFAULT;
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if ((maint_io.offset % 4) ||
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(maint_io.length == 0) || (maint_io.length % 4))
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(maint_io.length == 0) || (maint_io.length % 4) ||
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(maint_io.length + maint_io.offset) > RIO_MAINT_SPACE_SZ)
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return -EINVAL;
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buffer = vmalloc(maint_io.length);
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@ -327,7 +330,8 @@ static int rio_mport_maint_wr(struct mport_cdev_priv *priv, void __user *arg,
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return -ENOMEM;
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length = maint_io.length;
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if (unlikely(copy_from_user(buffer, maint_io.buffer, length))) {
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if (unlikely(copy_from_user(buffer,
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(void __user *)(uintptr_t)maint_io.buffer, length))) {
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ret = -EFAULT;
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goto out;
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}
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@ -360,7 +364,7 @@ static int rio_mport_maint_wr(struct mport_cdev_priv *priv, void __user *arg,
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*/
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static int
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rio_mport_create_outbound_mapping(struct mport_dev *md, struct file *filp,
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u32 rioid, u64 raddr, u32 size,
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u16 rioid, u64 raddr, u32 size,
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dma_addr_t *paddr)
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{
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struct rio_mport *mport = md->mport;
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@ -369,7 +373,7 @@ rio_mport_create_outbound_mapping(struct mport_dev *md, struct file *filp,
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rmcd_debug(OBW, "did=%d ra=0x%llx sz=0x%x", rioid, raddr, size);
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map = kzalloc(sizeof(struct rio_mport_mapping), GFP_KERNEL);
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map = kzalloc(sizeof(*map), GFP_KERNEL);
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if (map == NULL)
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return -ENOMEM;
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@ -394,7 +398,7 @@ rio_mport_create_outbound_mapping(struct mport_dev *md, struct file *filp,
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static int
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rio_mport_get_outbound_mapping(struct mport_dev *md, struct file *filp,
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u32 rioid, u64 raddr, u32 size,
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u16 rioid, u64 raddr, u32 size,
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dma_addr_t *paddr)
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{
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struct rio_mport_mapping *map;
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@ -433,7 +437,7 @@ static int rio_mport_obw_map(struct file *filp, void __user *arg)
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dma_addr_t paddr;
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int ret;
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if (unlikely(copy_from_user(&map, arg, sizeof(struct rio_mmap))))
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if (unlikely(copy_from_user(&map, arg, sizeof(map))))
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return -EFAULT;
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rmcd_debug(OBW, "did=%d ra=0x%llx sz=0x%llx",
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@ -448,7 +452,7 @@ static int rio_mport_obw_map(struct file *filp, void __user *arg)
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map.handle = paddr;
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if (unlikely(copy_to_user(arg, &map, sizeof(struct rio_mmap))))
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if (unlikely(copy_to_user(arg, &map, sizeof(map))))
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return -EFAULT;
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return 0;
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}
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@ -469,7 +473,7 @@ static int rio_mport_obw_free(struct file *filp, void __user *arg)
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if (!md->mport->ops->unmap_outb)
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return -EPROTONOSUPPORT;
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if (copy_from_user(&handle, arg, sizeof(u64)))
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if (copy_from_user(&handle, arg, sizeof(handle)))
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return -EFAULT;
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rmcd_debug(OBW, "h=0x%llx", handle);
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@ -498,9 +502,9 @@ static int rio_mport_obw_free(struct file *filp, void __user *arg)
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static int maint_hdid_set(struct mport_cdev_priv *priv, void __user *arg)
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{
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struct mport_dev *md = priv->md;
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uint16_t hdid;
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u16 hdid;
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if (copy_from_user(&hdid, arg, sizeof(uint16_t)))
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if (copy_from_user(&hdid, arg, sizeof(hdid)))
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return -EFAULT;
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md->mport->host_deviceid = hdid;
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@ -520,9 +524,9 @@ static int maint_hdid_set(struct mport_cdev_priv *priv, void __user *arg)
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static int maint_comptag_set(struct mport_cdev_priv *priv, void __user *arg)
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{
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struct mport_dev *md = priv->md;
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uint32_t comptag;
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u32 comptag;
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if (copy_from_user(&comptag, arg, sizeof(uint32_t)))
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if (copy_from_user(&comptag, arg, sizeof(comptag)))
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return -EFAULT;
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rio_local_write_config_32(md->mport, RIO_COMPONENT_TAG_CSR, comptag);
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@ -837,7 +841,7 @@ static int do_dma_request(struct mport_dma_req *req,
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* @xfer: data transfer descriptor structure
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*/
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static int
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rio_dma_transfer(struct file *filp, uint32_t transfer_mode,
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rio_dma_transfer(struct file *filp, u32 transfer_mode,
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enum rio_transfer_sync sync, enum dma_data_direction dir,
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struct rio_transfer_io *xfer)
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{
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@ -875,7 +879,7 @@ rio_dma_transfer(struct file *filp, uint32_t transfer_mode,
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unsigned long offset;
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long pinned;
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offset = (unsigned long)xfer->loc_addr & ~PAGE_MASK;
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offset = (unsigned long)(uintptr_t)xfer->loc_addr & ~PAGE_MASK;
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nr_pages = PAGE_ALIGN(xfer->length + offset) >> PAGE_SHIFT;
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page_list = kmalloc_array(nr_pages,
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@ -1015,19 +1019,20 @@ static int rio_mport_transfer_ioctl(struct file *filp, void __user *arg)
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if (unlikely(copy_from_user(&transaction, arg, sizeof(transaction))))
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return -EFAULT;
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|
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if (transaction.count != 1)
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if (transaction.count != 1) /* only single transfer for now */
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return -EINVAL;
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|
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if ((transaction.transfer_mode &
|
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priv->md->properties.transfer_mode) == 0)
|
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return -ENODEV;
|
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|
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transfer = vmalloc(transaction.count * sizeof(struct rio_transfer_io));
|
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transfer = vmalloc(transaction.count * sizeof(*transfer));
|
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if (!transfer)
|
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return -ENOMEM;
|
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|
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if (unlikely(copy_from_user(transfer, transaction.block,
|
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transaction.count * sizeof(struct rio_transfer_io)))) {
|
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if (unlikely(copy_from_user(transfer,
|
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(void __user *)(uintptr_t)transaction.block,
|
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transaction.count * sizeof(*transfer)))) {
|
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ret = -EFAULT;
|
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goto out_free;
|
||||
}
|
||||
|
|
@ -1038,8 +1043,9 @@ static int rio_mport_transfer_ioctl(struct file *filp, void __user *arg)
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|||
ret = rio_dma_transfer(filp, transaction.transfer_mode,
|
||||
transaction.sync, dir, &transfer[i]);
|
||||
|
||||
if (unlikely(copy_to_user(transaction.block, transfer,
|
||||
transaction.count * sizeof(struct rio_transfer_io))))
|
||||
if (unlikely(copy_to_user((void __user *)(uintptr_t)transaction.block,
|
||||
transfer,
|
||||
transaction.count * sizeof(*transfer))))
|
||||
ret = -EFAULT;
|
||||
|
||||
out_free:
|
||||
|
|
@ -1129,11 +1135,11 @@ static int rio_mport_wait_for_async_dma(struct file *filp, void __user *arg)
|
|||
}
|
||||
|
||||
static int rio_mport_create_dma_mapping(struct mport_dev *md, struct file *filp,
|
||||
uint64_t size, struct rio_mport_mapping **mapping)
|
||||
u64 size, struct rio_mport_mapping **mapping)
|
||||
{
|
||||
struct rio_mport_mapping *map;
|
||||
|
||||
map = kzalloc(sizeof(struct rio_mport_mapping), GFP_KERNEL);
|
||||
map = kzalloc(sizeof(*map), GFP_KERNEL);
|
||||
if (map == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
|
|
@ -1165,7 +1171,7 @@ static int rio_mport_alloc_dma(struct file *filp, void __user *arg)
|
|||
struct rio_mport_mapping *mapping = NULL;
|
||||
int ret;
|
||||
|
||||
if (unlikely(copy_from_user(&map, arg, sizeof(struct rio_dma_mem))))
|
||||
if (unlikely(copy_from_user(&map, arg, sizeof(map))))
|
||||
return -EFAULT;
|
||||
|
||||
ret = rio_mport_create_dma_mapping(md, filp, map.length, &mapping);
|
||||
|
|
@ -1174,7 +1180,7 @@ static int rio_mport_alloc_dma(struct file *filp, void __user *arg)
|
|||
|
||||
map.dma_handle = mapping->phys_addr;
|
||||
|
||||
if (unlikely(copy_to_user(arg, &map, sizeof(struct rio_dma_mem)))) {
|
||||
if (unlikely(copy_to_user(arg, &map, sizeof(map)))) {
|
||||
mutex_lock(&md->buf_mutex);
|
||||
kref_put(&mapping->ref, mport_release_mapping);
|
||||
mutex_unlock(&md->buf_mutex);
|
||||
|
|
@ -1192,7 +1198,7 @@ static int rio_mport_free_dma(struct file *filp, void __user *arg)
|
|||
int ret = -EFAULT;
|
||||
struct rio_mport_mapping *map, *_map;
|
||||
|
||||
if (copy_from_user(&handle, arg, sizeof(u64)))
|
||||
if (copy_from_user(&handle, arg, sizeof(handle)))
|
||||
return -EFAULT;
|
||||
rmcd_debug(EXIT, "filp=%p", filp);
|
||||
|
||||
|
|
@ -1242,14 +1248,18 @@ static int rio_mport_free_dma(struct file *filp, void __user *arg)
|
|||
|
||||
static int
|
||||
rio_mport_create_inbound_mapping(struct mport_dev *md, struct file *filp,
|
||||
u64 raddr, u32 size,
|
||||
u64 raddr, u64 size,
|
||||
struct rio_mport_mapping **mapping)
|
||||
{
|
||||
struct rio_mport *mport = md->mport;
|
||||
struct rio_mport_mapping *map;
|
||||
int ret;
|
||||
|
||||
map = kzalloc(sizeof(struct rio_mport_mapping), GFP_KERNEL);
|
||||
/* rio_map_inb_region() accepts u32 size */
|
||||
if (size > 0xffffffff)
|
||||
return -EINVAL;
|
||||
|
||||
map = kzalloc(sizeof(*map), GFP_KERNEL);
|
||||
if (map == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
|
|
@ -1262,7 +1272,7 @@ rio_mport_create_inbound_mapping(struct mport_dev *md, struct file *filp,
|
|||
|
||||
if (raddr == RIO_MAP_ANY_ADDR)
|
||||
raddr = map->phys_addr;
|
||||
ret = rio_map_inb_region(mport, map->phys_addr, raddr, size, 0);
|
||||
ret = rio_map_inb_region(mport, map->phys_addr, raddr, (u32)size, 0);
|
||||
if (ret < 0)
|
||||
goto err_map_inb;
|
||||
|
||||
|
|
@ -1288,7 +1298,7 @@ rio_mport_create_inbound_mapping(struct mport_dev *md, struct file *filp,
|
|||
|
||||
static int
|
||||
rio_mport_get_inbound_mapping(struct mport_dev *md, struct file *filp,
|
||||
u64 raddr, u32 size,
|
||||
u64 raddr, u64 size,
|
||||
struct rio_mport_mapping **mapping)
|
||||
{
|
||||
struct rio_mport_mapping *map;
|
||||
|
|
@ -1331,7 +1341,7 @@ static int rio_mport_map_inbound(struct file *filp, void __user *arg)
|
|||
|
||||
if (!md->mport->ops->map_inb)
|
||||
return -EPROTONOSUPPORT;
|
||||
if (unlikely(copy_from_user(&map, arg, sizeof(struct rio_mmap))))
|
||||
if (unlikely(copy_from_user(&map, arg, sizeof(map))))
|
||||
return -EFAULT;
|
||||
|
||||
rmcd_debug(IBW, "%s filp=%p", dev_name(&priv->md->dev), filp);
|
||||
|
|
@ -1344,7 +1354,7 @@ static int rio_mport_map_inbound(struct file *filp, void __user *arg)
|
|||
map.handle = mapping->phys_addr;
|
||||
map.rio_addr = mapping->rio_addr;
|
||||
|
||||
if (unlikely(copy_to_user(arg, &map, sizeof(struct rio_mmap)))) {
|
||||
if (unlikely(copy_to_user(arg, &map, sizeof(map)))) {
|
||||
/* Delete mapping if it was created by this request */
|
||||
if (ret == 0 && mapping->filp == filp) {
|
||||
mutex_lock(&md->buf_mutex);
|
||||
|
|
@ -1375,7 +1385,7 @@ static int rio_mport_inbound_free(struct file *filp, void __user *arg)
|
|||
if (!md->mport->ops->unmap_inb)
|
||||
return -EPROTONOSUPPORT;
|
||||
|
||||
if (copy_from_user(&handle, arg, sizeof(u64)))
|
||||
if (copy_from_user(&handle, arg, sizeof(handle)))
|
||||
return -EFAULT;
|
||||
|
||||
mutex_lock(&md->buf_mutex);
|
||||
|
|
@ -1401,7 +1411,7 @@ static int rio_mport_inbound_free(struct file *filp, void __user *arg)
|
|||
static int maint_port_idx_get(struct mport_cdev_priv *priv, void __user *arg)
|
||||
{
|
||||
struct mport_dev *md = priv->md;
|
||||
uint32_t port_idx = md->mport->index;
|
||||
u32 port_idx = md->mport->index;
|
||||
|
||||
rmcd_debug(MPORT, "port_index=%d", port_idx);
|
||||
|
||||
|
|
@ -1451,7 +1461,7 @@ static void rio_mport_doorbell_handler(struct rio_mport *mport, void *dev_id,
|
|||
handled = 0;
|
||||
spin_lock(&data->db_lock);
|
||||
list_for_each_entry(db_filter, &data->doorbells, data_node) {
|
||||
if (((db_filter->filter.rioid == 0xffffffff ||
|
||||
if (((db_filter->filter.rioid == RIO_INVALID_DESTID ||
|
||||
db_filter->filter.rioid == src)) &&
|
||||
info >= db_filter->filter.low &&
|
||||
info <= db_filter->filter.high) {
|
||||
|
|
@ -1525,6 +1535,9 @@ static int rio_mport_remove_db_filter(struct mport_cdev_priv *priv,
|
|||
if (copy_from_user(&filter, arg, sizeof(filter)))
|
||||
return -EFAULT;
|
||||
|
||||
if (filter.low > filter.high)
|
||||
return -EINVAL;
|
||||
|
||||
spin_lock_irqsave(&priv->md->db_lock, flags);
|
||||
list_for_each_entry(db_filter, &priv->db_filters, priv_node) {
|
||||
if (db_filter->filter.rioid == filter.rioid &&
|
||||
|
|
@ -1737,10 +1750,10 @@ static int rio_mport_add_riodev(struct mport_cdev_priv *priv,
|
|||
return -EEXIST;
|
||||
}
|
||||
|
||||
size = sizeof(struct rio_dev);
|
||||
size = sizeof(*rdev);
|
||||
mport = md->mport;
|
||||
destid = (u16)dev_info.destid;
|
||||
hopcount = (u8)dev_info.hopcount;
|
||||
destid = dev_info.destid;
|
||||
hopcount = dev_info.hopcount;
|
||||
|
||||
if (rio_mport_read_config_32(mport, destid, hopcount,
|
||||
RIO_PEF_CAR, &rval))
|
||||
|
|
@ -1872,8 +1885,8 @@ static int rio_mport_del_riodev(struct mport_cdev_priv *priv, void __user *arg)
|
|||
do {
|
||||
rdev = rio_get_comptag(dev_info.comptag, rdev);
|
||||
if (rdev && rdev->dev.parent == &mport->net->dev &&
|
||||
rdev->destid == (u16)dev_info.destid &&
|
||||
rdev->hopcount == (u8)dev_info.hopcount)
|
||||
rdev->destid == dev_info.destid &&
|
||||
rdev->hopcount == dev_info.hopcount)
|
||||
break;
|
||||
} while (rdev);
|
||||
}
|
||||
|
|
@ -2146,8 +2159,8 @@ static long mport_cdev_ioctl(struct file *filp,
|
|||
return maint_port_idx_get(data, (void __user *)arg);
|
||||
case RIO_MPORT_GET_PROPERTIES:
|
||||
md->properties.hdid = md->mport->host_deviceid;
|
||||
if (copy_to_user((void __user *)arg, &(data->md->properties),
|
||||
sizeof(data->md->properties)))
|
||||
if (copy_to_user((void __user *)arg, &(md->properties),
|
||||
sizeof(md->properties)))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
case RIO_ENABLE_DOORBELL_RANGE:
|
||||
|
|
@ -2159,11 +2172,11 @@ static long mport_cdev_ioctl(struct file *filp,
|
|||
case RIO_DISABLE_PORTWRITE_RANGE:
|
||||
return rio_mport_remove_pw_filter(data, (void __user *)arg);
|
||||
case RIO_SET_EVENT_MASK:
|
||||
data->event_mask = arg;
|
||||
data->event_mask = (u32)arg;
|
||||
return 0;
|
||||
case RIO_GET_EVENT_MASK:
|
||||
if (copy_to_user((void __user *)arg, &data->event_mask,
|
||||
sizeof(data->event_mask)))
|
||||
sizeof(u32)))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
case RIO_MAP_OUTBOUND:
|
||||
|
|
@ -2374,7 +2387,7 @@ static ssize_t mport_write(struct file *filp, const char __user *buf,
|
|||
return -EINVAL;
|
||||
|
||||
ret = rio_mport_send_doorbell(mport,
|
||||
(u16)event.u.doorbell.rioid,
|
||||
event.u.doorbell.rioid,
|
||||
event.u.doorbell.payload);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
|
@ -2421,7 +2434,7 @@ static struct mport_dev *mport_cdev_add(struct rio_mport *mport)
|
|||
struct mport_dev *md;
|
||||
struct rio_mport_attr attr;
|
||||
|
||||
md = kzalloc(sizeof(struct mport_dev), GFP_KERNEL);
|
||||
md = kzalloc(sizeof(*md), GFP_KERNEL);
|
||||
if (!md) {
|
||||
rmcd_error("Unable allocate a device object");
|
||||
return NULL;
|
||||
|
|
@ -2470,7 +2483,7 @@ static struct mport_dev *mport_cdev_add(struct rio_mport *mport)
|
|||
/* The transfer_mode property will be returned through mport query
|
||||
* interface
|
||||
*/
|
||||
#ifdef CONFIG_PPC /* for now: only on Freescale's SoCs */
|
||||
#ifdef CONFIG_FSL_RIO /* for now: only on Freescale's SoCs */
|
||||
md->properties.transfer_mode |= RIO_TRANSFER_MODE_MAPPED;
|
||||
#else
|
||||
md->properties.transfer_mode |= RIO_TRANSFER_MODE_TRANSFER;
|
||||
|
|
|
|||
|
|
@ -955,7 +955,8 @@ static ssize_t environ_read(struct file *file, char __user *buf,
|
|||
struct mm_struct *mm = file->private_data;
|
||||
unsigned long env_start, env_end;
|
||||
|
||||
if (!mm)
|
||||
/* Ensure the process spawned far enough to have an environment. */
|
||||
if (!mm || !mm->env_end)
|
||||
return 0;
|
||||
|
||||
page = (char *)__get_free_page(GFP_TEMPORARY);
|
||||
|
|
|
|||
|
|
@ -516,6 +516,27 @@ static inline int PageTransCompound(struct page *page)
|
|||
return PageCompound(page);
|
||||
}
|
||||
|
||||
/*
|
||||
* PageTransCompoundMap is the same as PageTransCompound, but it also
|
||||
* guarantees the primary MMU has the entire compound page mapped
|
||||
* through pmd_trans_huge, which in turn guarantees the secondary MMUs
|
||||
* can also map the entire compound page. This allows the secondary
|
||||
* MMUs to call get_user_pages() only once for each compound page and
|
||||
* to immediately map the entire compound page with a single secondary
|
||||
* MMU fault. If there will be a pmd split later, the secondary MMUs
|
||||
* will get an update through the MMU notifier invalidation through
|
||||
* split_huge_pmd().
|
||||
*
|
||||
* Unlike PageTransCompound, this is safe to be called only while
|
||||
* split_huge_pmd() cannot run from under us, like if protected by the
|
||||
* MMU notifier, otherwise it may result in page->_mapcount < 0 false
|
||||
* positives.
|
||||
*/
|
||||
static inline int PageTransCompoundMap(struct page *page)
|
||||
{
|
||||
return PageTransCompound(page) && atomic_read(&page->_mapcount) < 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* PageTransTail returns true for both transparent huge pages
|
||||
* and hugetlbfs pages, so it should only be called when it's known
|
||||
|
|
@ -559,6 +580,7 @@ static inline int TestClearPageDoubleMap(struct page *page)
|
|||
#else
|
||||
TESTPAGEFLAG_FALSE(TransHuge)
|
||||
TESTPAGEFLAG_FALSE(TransCompound)
|
||||
TESTPAGEFLAG_FALSE(TransCompoundMap)
|
||||
TESTPAGEFLAG_FALSE(TransTail)
|
||||
TESTPAGEFLAG_FALSE(DoubleMap)
|
||||
TESTSETFLAG_FALSE(DoubleMap)
|
||||
|
|
|
|||
|
|
@ -533,6 +533,10 @@ static inline swp_entry_t get_swap_page(void)
|
|||
#ifdef CONFIG_MEMCG
|
||||
static inline int mem_cgroup_swappiness(struct mem_cgroup *memcg)
|
||||
{
|
||||
/* Cgroup2 doesn't have per-cgroup swappiness */
|
||||
if (cgroup_subsys_on_dfl(memory_cgrp_subsys))
|
||||
return vm_swappiness;
|
||||
|
||||
/* root ? */
|
||||
if (mem_cgroup_disabled() || !memcg->css.parent)
|
||||
return vm_swappiness;
|
||||
|
|
|
|||
|
|
@ -39,16 +39,16 @@
|
|||
#ifndef _RIO_MPORT_CDEV_H_
|
||||
#define _RIO_MPORT_CDEV_H_
|
||||
|
||||
#ifndef __user
|
||||
#define __user
|
||||
#endif
|
||||
#include <linux/ioctl.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
struct rio_mport_maint_io {
|
||||
uint32_t rioid; /* destID of remote device */
|
||||
uint32_t hopcount; /* hopcount to remote device */
|
||||
uint32_t offset; /* offset in register space */
|
||||
size_t length; /* length in bytes */
|
||||
void __user *buffer; /* data buffer */
|
||||
__u16 rioid; /* destID of remote device */
|
||||
__u8 hopcount; /* hopcount to remote device */
|
||||
__u8 pad0[5];
|
||||
__u32 offset; /* offset in register space */
|
||||
__u32 length; /* length in bytes */
|
||||
__u64 buffer; /* pointer to data buffer */
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -66,22 +66,23 @@ struct rio_mport_maint_io {
|
|||
#define RIO_CAP_MAP_INB (1 << 7)
|
||||
|
||||
struct rio_mport_properties {
|
||||
uint16_t hdid;
|
||||
uint8_t id; /* Physical port ID */
|
||||
uint8_t index;
|
||||
uint32_t flags;
|
||||
uint32_t sys_size; /* Default addressing size */
|
||||
uint8_t port_ok;
|
||||
uint8_t link_speed;
|
||||
uint8_t link_width;
|
||||
uint32_t dma_max_sge;
|
||||
uint32_t dma_max_size;
|
||||
uint32_t dma_align;
|
||||
uint32_t transfer_mode; /* Default transfer mode */
|
||||
uint32_t cap_sys_size; /* Capable system sizes */
|
||||
uint32_t cap_addr_size; /* Capable addressing sizes */
|
||||
uint32_t cap_transfer_mode; /* Capable transfer modes */
|
||||
uint32_t cap_mport; /* Mport capabilities */
|
||||
__u16 hdid;
|
||||
__u8 id; /* Physical port ID */
|
||||
__u8 index;
|
||||
__u32 flags;
|
||||
__u32 sys_size; /* Default addressing size */
|
||||
__u8 port_ok;
|
||||
__u8 link_speed;
|
||||
__u8 link_width;
|
||||
__u8 pad0;
|
||||
__u32 dma_max_sge;
|
||||
__u32 dma_max_size;
|
||||
__u32 dma_align;
|
||||
__u32 transfer_mode; /* Default transfer mode */
|
||||
__u32 cap_sys_size; /* Capable system sizes */
|
||||
__u32 cap_addr_size; /* Capable addressing sizes */
|
||||
__u32 cap_transfer_mode; /* Capable transfer modes */
|
||||
__u32 cap_mport; /* Mport capabilities */
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -93,54 +94,57 @@ struct rio_mport_properties {
|
|||
#define RIO_PORTWRITE (1 << 1)
|
||||
|
||||
struct rio_doorbell {
|
||||
uint32_t rioid;
|
||||
uint16_t payload;
|
||||
__u16 rioid;
|
||||
__u16 payload;
|
||||
};
|
||||
|
||||
struct rio_doorbell_filter {
|
||||
uint32_t rioid; /* 0xffffffff to match all ids */
|
||||
uint16_t low;
|
||||
uint16_t high;
|
||||
__u16 rioid; /* Use RIO_INVALID_DESTID to match all ids */
|
||||
__u16 low;
|
||||
__u16 high;
|
||||
__u16 pad0;
|
||||
};
|
||||
|
||||
|
||||
struct rio_portwrite {
|
||||
uint32_t payload[16];
|
||||
__u32 payload[16];
|
||||
};
|
||||
|
||||
struct rio_pw_filter {
|
||||
uint32_t mask;
|
||||
uint32_t low;
|
||||
uint32_t high;
|
||||
__u32 mask;
|
||||
__u32 low;
|
||||
__u32 high;
|
||||
__u32 pad0;
|
||||
};
|
||||
|
||||
/* RapidIO base address for inbound requests set to value defined below
|
||||
* indicates that no specific RIO-to-local address translation is requested
|
||||
* and driver should use direct (one-to-one) address mapping.
|
||||
*/
|
||||
#define RIO_MAP_ANY_ADDR (uint64_t)(~((uint64_t) 0))
|
||||
#define RIO_MAP_ANY_ADDR (__u64)(~((__u64) 0))
|
||||
|
||||
struct rio_mmap {
|
||||
uint32_t rioid;
|
||||
uint64_t rio_addr;
|
||||
uint64_t length;
|
||||
uint64_t handle;
|
||||
void *address;
|
||||
__u16 rioid;
|
||||
__u16 pad0[3];
|
||||
__u64 rio_addr;
|
||||
__u64 length;
|
||||
__u64 handle;
|
||||
__u64 address;
|
||||
};
|
||||
|
||||
struct rio_dma_mem {
|
||||
uint64_t length; /* length of DMA memory */
|
||||
uint64_t dma_handle; /* handle associated with this memory */
|
||||
void *buffer; /* pointer to this memory */
|
||||
__u64 length; /* length of DMA memory */
|
||||
__u64 dma_handle; /* handle associated with this memory */
|
||||
__u64 address;
|
||||
};
|
||||
|
||||
|
||||
struct rio_event {
|
||||
unsigned int header; /* event type RIO_DOORBELL or RIO_PORTWRITE */
|
||||
__u32 header; /* event type RIO_DOORBELL or RIO_PORTWRITE */
|
||||
union {
|
||||
struct rio_doorbell doorbell; /* header for RIO_DOORBELL */
|
||||
struct rio_portwrite portwrite; /* header for RIO_PORTWRITE */
|
||||
} u;
|
||||
__u32 pad0;
|
||||
};
|
||||
|
||||
enum rio_transfer_sync {
|
||||
|
|
@ -184,35 +188,37 @@ enum rio_exchange {
|
|||
};
|
||||
|
||||
struct rio_transfer_io {
|
||||
uint32_t rioid; /* Target destID */
|
||||
uint64_t rio_addr; /* Address in target's RIO mem space */
|
||||
enum rio_exchange method; /* Data exchange method */
|
||||
void __user *loc_addr;
|
||||
uint64_t handle;
|
||||
uint64_t offset; /* Offset in buffer */
|
||||
uint64_t length; /* Length in bytes */
|
||||
uint32_t completion_code; /* Completion code for this transfer */
|
||||
__u64 rio_addr; /* Address in target's RIO mem space */
|
||||
__u64 loc_addr;
|
||||
__u64 handle;
|
||||
__u64 offset; /* Offset in buffer */
|
||||
__u64 length; /* Length in bytes */
|
||||
__u16 rioid; /* Target destID */
|
||||
__u16 method; /* Data exchange method, one of rio_exchange enum */
|
||||
__u32 completion_code; /* Completion code for this transfer */
|
||||
};
|
||||
|
||||
struct rio_transaction {
|
||||
uint32_t transfer_mode; /* Data transfer mode */
|
||||
enum rio_transfer_sync sync; /* Synchronization method */
|
||||
enum rio_transfer_dir dir; /* Transfer direction */
|
||||
size_t count; /* Number of transfers */
|
||||
struct rio_transfer_io __user *block; /* Array of <count> transfers */
|
||||
__u64 block; /* Pointer to array of <count> transfers */
|
||||
__u32 count; /* Number of transfers */
|
||||
__u32 transfer_mode; /* Data transfer mode */
|
||||
__u16 sync; /* Synch method, one of rio_transfer_sync enum */
|
||||
__u16 dir; /* Transfer direction, one of rio_transfer_dir enum */
|
||||
__u32 pad0;
|
||||
};
|
||||
|
||||
struct rio_async_tx_wait {
|
||||
uint32_t token; /* DMA transaction ID token */
|
||||
uint32_t timeout; /* Wait timeout in msec, if 0 use default TO */
|
||||
__u32 token; /* DMA transaction ID token */
|
||||
__u32 timeout; /* Wait timeout in msec, if 0 use default TO */
|
||||
};
|
||||
|
||||
#define RIO_MAX_DEVNAME_SZ 20
|
||||
|
||||
struct rio_rdev_info {
|
||||
uint32_t destid;
|
||||
uint8_t hopcount;
|
||||
uint32_t comptag;
|
||||
__u16 destid;
|
||||
__u8 hopcount;
|
||||
__u8 pad0;
|
||||
__u32 comptag;
|
||||
char name[RIO_MAX_DEVNAME_SZ + 1];
|
||||
};
|
||||
|
||||
|
|
@ -220,11 +226,11 @@ struct rio_rdev_info {
|
|||
#define RIO_MPORT_DRV_MAGIC 'm'
|
||||
|
||||
#define RIO_MPORT_MAINT_HDID_SET \
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 1, uint16_t)
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 1, __u16)
|
||||
#define RIO_MPORT_MAINT_COMPTAG_SET \
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 2, uint32_t)
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 2, __u32)
|
||||
#define RIO_MPORT_MAINT_PORT_IDX_GET \
|
||||
_IOR(RIO_MPORT_DRV_MAGIC, 3, uint32_t)
|
||||
_IOR(RIO_MPORT_DRV_MAGIC, 3, __u32)
|
||||
#define RIO_MPORT_GET_PROPERTIES \
|
||||
_IOR(RIO_MPORT_DRV_MAGIC, 4, struct rio_mport_properties)
|
||||
#define RIO_MPORT_MAINT_READ_LOCAL \
|
||||
|
|
@ -244,9 +250,9 @@ struct rio_rdev_info {
|
|||
#define RIO_DISABLE_PORTWRITE_RANGE \
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 12, struct rio_pw_filter)
|
||||
#define RIO_SET_EVENT_MASK \
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 13, unsigned int)
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 13, __u32)
|
||||
#define RIO_GET_EVENT_MASK \
|
||||
_IOR(RIO_MPORT_DRV_MAGIC, 14, unsigned int)
|
||||
_IOR(RIO_MPORT_DRV_MAGIC, 14, __u32)
|
||||
#define RIO_MAP_OUTBOUND \
|
||||
_IOWR(RIO_MPORT_DRV_MAGIC, 15, struct rio_mmap)
|
||||
#define RIO_UNMAP_OUTBOUND \
|
||||
|
|
@ -254,11 +260,11 @@ struct rio_rdev_info {
|
|||
#define RIO_MAP_INBOUND \
|
||||
_IOWR(RIO_MPORT_DRV_MAGIC, 17, struct rio_mmap)
|
||||
#define RIO_UNMAP_INBOUND \
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 18, uint64_t)
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 18, __u64)
|
||||
#define RIO_ALLOC_DMA \
|
||||
_IOWR(RIO_MPORT_DRV_MAGIC, 19, struct rio_dma_mem)
|
||||
#define RIO_FREE_DMA \
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 20, uint64_t)
|
||||
_IOW(RIO_MPORT_DRV_MAGIC, 20, __u64)
|
||||
#define RIO_TRANSFER \
|
||||
_IOWR(RIO_MPORT_DRV_MAGIC, 21, struct rio_transaction)
|
||||
#define RIO_WAIT_FOR_ASYNC \
|
||||
|
|
@ -45,9 +45,7 @@
|
|||
|
||||
static inline __attribute_const__ __u16 __fswab16(__u16 val)
|
||||
{
|
||||
#ifdef __HAVE_BUILTIN_BSWAP16__
|
||||
return __builtin_bswap16(val);
|
||||
#elif defined (__arch_swab16)
|
||||
#if defined (__arch_swab16)
|
||||
return __arch_swab16(val);
|
||||
#else
|
||||
return ___constant_swab16(val);
|
||||
|
|
@ -56,9 +54,7 @@ static inline __attribute_const__ __u16 __fswab16(__u16 val)
|
|||
|
||||
static inline __attribute_const__ __u32 __fswab32(__u32 val)
|
||||
{
|
||||
#ifdef __HAVE_BUILTIN_BSWAP32__
|
||||
return __builtin_bswap32(val);
|
||||
#elif defined(__arch_swab32)
|
||||
#if defined(__arch_swab32)
|
||||
return __arch_swab32(val);
|
||||
#else
|
||||
return ___constant_swab32(val);
|
||||
|
|
@ -67,9 +63,7 @@ static inline __attribute_const__ __u32 __fswab32(__u32 val)
|
|||
|
||||
static inline __attribute_const__ __u64 __fswab64(__u64 val)
|
||||
{
|
||||
#ifdef __HAVE_BUILTIN_BSWAP64__
|
||||
return __builtin_bswap64(val);
|
||||
#elif defined (__arch_swab64)
|
||||
#if defined (__arch_swab64)
|
||||
return __arch_swab64(val);
|
||||
#elif defined(__SWAB_64_THRU_32__)
|
||||
__u32 h = val >> 32;
|
||||
|
|
@ -102,28 +96,40 @@ static inline __attribute_const__ __u32 __fswahb32(__u32 val)
|
|||
* __swab16 - return a byteswapped 16-bit value
|
||||
* @x: value to byteswap
|
||||
*/
|
||||
#ifdef __HAVE_BUILTIN_BSWAP16__
|
||||
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
|
||||
#else
|
||||
#define __swab16(x) \
|
||||
(__builtin_constant_p((__u16)(x)) ? \
|
||||
___constant_swab16(x) : \
|
||||
__fswab16(x))
|
||||
#endif
|
||||
|
||||
/**
|
||||
* __swab32 - return a byteswapped 32-bit value
|
||||
* @x: value to byteswap
|
||||
*/
|
||||
#ifdef __HAVE_BUILTIN_BSWAP32__
|
||||
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
|
||||
#else
|
||||
#define __swab32(x) \
|
||||
(__builtin_constant_p((__u32)(x)) ? \
|
||||
___constant_swab32(x) : \
|
||||
__fswab32(x))
|
||||
#endif
|
||||
|
||||
/**
|
||||
* __swab64 - return a byteswapped 64-bit value
|
||||
* @x: value to byteswap
|
||||
*/
|
||||
#ifdef __HAVE_BUILTIN_BSWAP64__
|
||||
#define __swab64(x) (__u64)__builtin_bswap64((__u64)(x))
|
||||
#else
|
||||
#define __swab64(x) \
|
||||
(__builtin_constant_p((__u64)(x)) ? \
|
||||
___constant_swab64(x) : \
|
||||
__fswab64(x))
|
||||
#endif
|
||||
|
||||
/**
|
||||
* __swahw32 - return a word-swapped 32-bit value
|
||||
|
|
|
|||
|
|
@ -42,12 +42,14 @@
|
|||
|
||||
#define DEPOT_STACK_BITS (sizeof(depot_stack_handle_t) * 8)
|
||||
|
||||
#define STACK_ALLOC_NULL_PROTECTION_BITS 1
|
||||
#define STACK_ALLOC_ORDER 2 /* 'Slab' size order for stack depot, 4 pages */
|
||||
#define STACK_ALLOC_SIZE (1LL << (PAGE_SHIFT + STACK_ALLOC_ORDER))
|
||||
#define STACK_ALLOC_ALIGN 4
|
||||
#define STACK_ALLOC_OFFSET_BITS (STACK_ALLOC_ORDER + PAGE_SHIFT - \
|
||||
STACK_ALLOC_ALIGN)
|
||||
#define STACK_ALLOC_INDEX_BITS (DEPOT_STACK_BITS - STACK_ALLOC_OFFSET_BITS)
|
||||
#define STACK_ALLOC_INDEX_BITS (DEPOT_STACK_BITS - \
|
||||
STACK_ALLOC_NULL_PROTECTION_BITS - STACK_ALLOC_OFFSET_BITS)
|
||||
#define STACK_ALLOC_SLABS_CAP 1024
|
||||
#define STACK_ALLOC_MAX_SLABS \
|
||||
(((1LL << (STACK_ALLOC_INDEX_BITS)) < STACK_ALLOC_SLABS_CAP) ? \
|
||||
|
|
@ -59,6 +61,7 @@ union handle_parts {
|
|||
struct {
|
||||
u32 slabindex : STACK_ALLOC_INDEX_BITS;
|
||||
u32 offset : STACK_ALLOC_OFFSET_BITS;
|
||||
u32 valid : STACK_ALLOC_NULL_PROTECTION_BITS;
|
||||
};
|
||||
};
|
||||
|
||||
|
|
@ -136,6 +139,7 @@ static struct stack_record *depot_alloc_stack(unsigned long *entries, int size,
|
|||
stack->size = size;
|
||||
stack->handle.slabindex = depot_index;
|
||||
stack->handle.offset = depot_offset >> STACK_ALLOC_ALIGN;
|
||||
stack->handle.valid = 1;
|
||||
memcpy(stack->entries, entries, size * sizeof(unsigned long));
|
||||
depot_offset += required_size;
|
||||
|
||||
|
|
|
|||
|
|
@ -852,16 +852,8 @@ isolate_migratepages_range(struct compact_control *cc, unsigned long start_pfn,
|
|||
pfn = isolate_migratepages_block(cc, pfn, block_end_pfn,
|
||||
ISOLATE_UNEVICTABLE);
|
||||
|
||||
/*
|
||||
* In case of fatal failure, release everything that might
|
||||
* have been isolated in the previous iteration, and signal
|
||||
* the failure back to caller.
|
||||
*/
|
||||
if (!pfn) {
|
||||
putback_movable_pages(&cc->migratepages);
|
||||
cc->nr_migratepages = 0;
|
||||
if (!pfn)
|
||||
break;
|
||||
}
|
||||
|
||||
if (cc->nr_migratepages == COMPACT_CLUSTER_MAX)
|
||||
break;
|
||||
|
|
@ -1741,7 +1733,7 @@ void compaction_unregister_node(struct node *node)
|
|||
|
||||
static inline bool kcompactd_work_requested(pg_data_t *pgdat)
|
||||
{
|
||||
return pgdat->kcompactd_max_order > 0;
|
||||
return pgdat->kcompactd_max_order > 0 || kthread_should_stop();
|
||||
}
|
||||
|
||||
static bool kcompactd_node_suitable(pg_data_t *pgdat)
|
||||
|
|
@ -1805,6 +1797,8 @@ static void kcompactd_do_work(pg_data_t *pgdat)
|
|||
INIT_LIST_HEAD(&cc.freepages);
|
||||
INIT_LIST_HEAD(&cc.migratepages);
|
||||
|
||||
if (kthread_should_stop())
|
||||
return;
|
||||
status = compact_zone(zone, &cc);
|
||||
|
||||
if (zone_watermark_ok(zone, cc.order, low_wmark_pages(zone),
|
||||
|
|
|
|||
|
|
@ -3452,7 +3452,7 @@ static int split_huge_pages_set(void *data, u64 val)
|
|||
}
|
||||
}
|
||||
|
||||
pr_info("%lu of %lu THP split", split, total);
|
||||
pr_info("%lu of %lu THP split\n", split, total);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -3463,7 +3463,7 @@ static int __init split_huge_pages_debugfs(void)
|
|||
{
|
||||
void *ret;
|
||||
|
||||
ret = debugfs_create_file("split_huge_pages", 0644, NULL, NULL,
|
||||
ret = debugfs_create_file("split_huge_pages", 0200, NULL, NULL,
|
||||
&split_huge_pages_fops);
|
||||
if (!ret)
|
||||
pr_warn("Failed to create split_huge_pages in debugfs");
|
||||
|
|
|
|||
11
mm/memory.c
11
mm/memory.c
|
|
@ -1222,15 +1222,8 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb,
|
|||
next = pmd_addr_end(addr, end);
|
||||
if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd)) {
|
||||
if (next - addr != HPAGE_PMD_SIZE) {
|
||||
#ifdef CONFIG_DEBUG_VM
|
||||
if (!rwsem_is_locked(&tlb->mm->mmap_sem)) {
|
||||
pr_err("%s: mmap_sem is unlocked! addr=0x%lx end=0x%lx vma->vm_start=0x%lx vma->vm_end=0x%lx\n",
|
||||
__func__, addr, end,
|
||||
vma->vm_start,
|
||||
vma->vm_end);
|
||||
BUG();
|
||||
}
|
||||
#endif
|
||||
VM_BUG_ON_VMA(vma_is_anonymous(vma) &&
|
||||
!rwsem_is_locked(&tlb->mm->mmap_sem), vma);
|
||||
split_huge_pmd(vma, pmd, addr);
|
||||
} else if (zap_huge_pmd(tlb, vma, pmd, addr))
|
||||
goto next;
|
||||
|
|
|
|||
|
|
@ -6485,7 +6485,7 @@ int __meminit init_per_zone_wmark_min(void)
|
|||
setup_per_zone_inactive_ratio();
|
||||
return 0;
|
||||
}
|
||||
module_init(init_per_zone_wmark_min)
|
||||
core_initcall(init_per_zone_wmark_min)
|
||||
|
||||
/*
|
||||
* min_free_kbytes_sysctl_handler - just a wrapper around proc_dointvec() so
|
||||
|
|
|
|||
|
|
@ -170,6 +170,8 @@ static struct zswap_tree *zswap_trees[MAX_SWAPFILES];
|
|||
static LIST_HEAD(zswap_pools);
|
||||
/* protects zswap_pools list modification */
|
||||
static DEFINE_SPINLOCK(zswap_pools_lock);
|
||||
/* pool counter to provide unique names to zpool */
|
||||
static atomic_t zswap_pools_count = ATOMIC_INIT(0);
|
||||
|
||||
/* used by param callback function */
|
||||
static bool zswap_init_started;
|
||||
|
|
@ -565,6 +567,7 @@ static struct zswap_pool *zswap_pool_find_get(char *type, char *compressor)
|
|||
static struct zswap_pool *zswap_pool_create(char *type, char *compressor)
|
||||
{
|
||||
struct zswap_pool *pool;
|
||||
char name[38]; /* 'zswap' + 32 char (max) num + \0 */
|
||||
gfp_t gfp = __GFP_NORETRY | __GFP_NOWARN | __GFP_KSWAPD_RECLAIM;
|
||||
|
||||
pool = kzalloc(sizeof(*pool), GFP_KERNEL);
|
||||
|
|
@ -573,7 +576,10 @@ static struct zswap_pool *zswap_pool_create(char *type, char *compressor)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
pool->zpool = zpool_create_pool(type, "zswap", gfp, &zswap_zpool_ops);
|
||||
/* unique name for each pool specifically required by zsmalloc */
|
||||
snprintf(name, 38, "zswap%x", atomic_inc_return(&zswap_pools_count));
|
||||
|
||||
pool->zpool = zpool_create_pool(type, name, gfp, &zswap_zpool_ops);
|
||||
if (!pool->zpool) {
|
||||
pr_err("%s zpool not available\n", type);
|
||||
goto error;
|
||||
|
|
|
|||
|
|
@ -371,6 +371,49 @@ static void do_usb_table(void *symval, unsigned long size,
|
|||
do_usb_entry_multi(symval + i, mod);
|
||||
}
|
||||
|
||||
static void do_of_entry_multi(void *symval, struct module *mod)
|
||||
{
|
||||
char alias[500];
|
||||
int len;
|
||||
char *tmp;
|
||||
|
||||
DEF_FIELD_ADDR(symval, of_device_id, name);
|
||||
DEF_FIELD_ADDR(symval, of_device_id, type);
|
||||
DEF_FIELD_ADDR(symval, of_device_id, compatible);
|
||||
|
||||
len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
|
||||
(*type)[0] ? *type : "*");
|
||||
|
||||
if (compatible[0])
|
||||
sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
|
||||
*compatible);
|
||||
|
||||
/* Replace all whitespace with underscores */
|
||||
for (tmp = alias; tmp && *tmp; tmp++)
|
||||
if (isspace(*tmp))
|
||||
*tmp = '_';
|
||||
|
||||
buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
|
||||
strcat(alias, "C");
|
||||
add_wildcard(alias);
|
||||
buf_printf(&mod->dev_table_buf, "MODULE_ALIAS(\"%s\");\n", alias);
|
||||
}
|
||||
|
||||
static void do_of_table(void *symval, unsigned long size,
|
||||
struct module *mod)
|
||||
{
|
||||
unsigned int i;
|
||||
const unsigned long id_size = SIZE_of_device_id;
|
||||
|
||||
device_id_check(mod->name, "of", size, id_size, symval);
|
||||
|
||||
/* Leave last one: it's the terminator. */
|
||||
size -= id_size;
|
||||
|
||||
for (i = 0; i < size; i += id_size)
|
||||
do_of_entry_multi(symval + i, mod);
|
||||
}
|
||||
|
||||
/* Looks like: hid:bNvNpN */
|
||||
static int do_hid_entry(const char *filename,
|
||||
void *symval, char *alias)
|
||||
|
|
@ -684,30 +727,6 @@ static int do_pcmcia_entry(const char *filename,
|
|||
}
|
||||
ADD_TO_DEVTABLE("pcmcia", pcmcia_device_id, do_pcmcia_entry);
|
||||
|
||||
static int do_of_entry (const char *filename, void *symval, char *alias)
|
||||
{
|
||||
int len;
|
||||
char *tmp;
|
||||
DEF_FIELD_ADDR(symval, of_device_id, name);
|
||||
DEF_FIELD_ADDR(symval, of_device_id, type);
|
||||
DEF_FIELD_ADDR(symval, of_device_id, compatible);
|
||||
|
||||
len = sprintf(alias, "of:N%sT%s", (*name)[0] ? *name : "*",
|
||||
(*type)[0] ? *type : "*");
|
||||
|
||||
if (compatible[0])
|
||||
sprintf(&alias[len], "%sC%s", (*type)[0] ? "*" : "",
|
||||
*compatible);
|
||||
|
||||
/* Replace all whitespace with underscores */
|
||||
for (tmp = alias; tmp && *tmp; tmp++)
|
||||
if (isspace (*tmp))
|
||||
*tmp = '_';
|
||||
|
||||
return 1;
|
||||
}
|
||||
ADD_TO_DEVTABLE("of", of_device_id, do_of_entry);
|
||||
|
||||
static int do_vio_entry(const char *filename, void *symval,
|
||||
char *alias)
|
||||
{
|
||||
|
|
@ -1348,6 +1367,8 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
|
|||
/* First handle the "special" cases */
|
||||
if (sym_is(name, namelen, "usb"))
|
||||
do_usb_table(symval, sym->st_size, mod);
|
||||
if (sym_is(name, namelen, "of"))
|
||||
do_of_table(symval, sym->st_size, mod);
|
||||
else if (sym_is(name, namelen, "pnp"))
|
||||
do_pnp_device_entry(symval, sym->st_size, mod);
|
||||
else if (sym_is(name, namelen, "pnp_card"))
|
||||
|
|
|
|||
Loading…
Reference in New Issue