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Commit 6daaca52 authored by Dan Williams's avatar Dan Williams
Browse files

device-dax: remove redundant __func__ in dev_dbg 



Dynamic debug can be instructed to add the function name to the debug
output using the +f switch, so there is no need for the dax modules to
do it again. If a user decides to add the +f switch for the dax modules'
dynamic debug this results in double prints of the function name.

Reported-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Reported-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 426824d6

drivers/dax/device.c

+17 −21
Original line number Diff line number Diff line
@@ -257,8 +257,8 @@ static int __dev_dax_pte_fault(struct dev_dax *dev_dax, struct vm_fault *vmf) 


	dax_region = dev_dax->region;

	if (dax_region->align > PAGE_SIZE) {

		dev_dbg(dev, "%s: alignment (%#x) > fault size (%#x)\n",

			__func__, dax_region->align, fault_size);

		dev_dbg(dev, "alignment (%#x) > fault size (%#x)\n",

			dax_region->align, fault_size);

		return VM_FAULT_SIGBUS;

	}
@@ -267,8 +267,7 @@ static int __dev_dax_pte_fault(struct dev_dax *dev_dax, struct vm_fault *vmf) 


	phys = dax_pgoff_to_phys(dev_dax, vmf->pgoff, PAGE_SIZE);

	if (phys == -1) {

		dev_dbg(dev, "%s: pgoff_to_phys(%#lx) failed\n", __func__,

				vmf->pgoff);

		dev_dbg(dev, "pgoff_to_phys(%#lx) failed\n", vmf->pgoff);

		return VM_FAULT_SIGBUS;

	}
@@ -299,14 +298,14 @@ static int __dev_dax_pmd_fault(struct dev_dax *dev_dax, struct vm_fault *vmf) 


	dax_region = dev_dax->region;

	if (dax_region->align > PMD_SIZE) {

		dev_dbg(dev, "%s: alignment (%#x) > fault size (%#x)\n",

			__func__, dax_region->align, fault_size);

		dev_dbg(dev, "alignment (%#x) > fault size (%#x)\n",

			dax_region->align, fault_size);

		return VM_FAULT_SIGBUS;

	}



	/* dax pmd mappings require pfn_t_devmap() */

	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) != (PFN_DEV|PFN_MAP)) {

		dev_dbg(dev, "%s: region lacks devmap flags\n", __func__);

		dev_dbg(dev, "region lacks devmap flags\n");

		return VM_FAULT_SIGBUS;

	}
@@ -323,8 +322,7 @@ static int __dev_dax_pmd_fault(struct dev_dax *dev_dax, struct vm_fault *vmf) 
	pgoff = linear_page_index(vmf->vma, pmd_addr);

	phys = dax_pgoff_to_phys(dev_dax, pgoff, PMD_SIZE);

	if (phys == -1) {

		dev_dbg(dev, "%s: pgoff_to_phys(%#lx) failed\n", __func__,

				pgoff);

		dev_dbg(dev, "pgoff_to_phys(%#lx) failed\n", pgoff);

		return VM_FAULT_SIGBUS;

	}
@@ -351,14 +349,14 @@ static int __dev_dax_pud_fault(struct dev_dax *dev_dax, struct vm_fault *vmf) 


	dax_region = dev_dax->region;

	if (dax_region->align > PUD_SIZE) {

		dev_dbg(dev, "%s: alignment (%#x) > fault size (%#x)\n",

			__func__, dax_region->align, fault_size);

		dev_dbg(dev, "alignment (%#x) > fault size (%#x)\n",

			dax_region->align, fault_size);

		return VM_FAULT_SIGBUS;

	}



	/* dax pud mappings require pfn_t_devmap() */

	if ((dax_region->pfn_flags & (PFN_DEV|PFN_MAP)) != (PFN_DEV|PFN_MAP)) {

		dev_dbg(dev, "%s: region lacks devmap flags\n", __func__);

		dev_dbg(dev, "region lacks devmap flags\n");

		return VM_FAULT_SIGBUS;

	}
@@ -375,8 +373,7 @@ static int __dev_dax_pud_fault(struct dev_dax *dev_dax, struct vm_fault *vmf) 
	pgoff = linear_page_index(vmf->vma, pud_addr);

	phys = dax_pgoff_to_phys(dev_dax, pgoff, PUD_SIZE);

	if (phys == -1) {

		dev_dbg(dev, "%s: pgoff_to_phys(%#lx) failed\n", __func__,

				pgoff);

		dev_dbg(dev, "pgoff_to_phys(%#lx) failed\n", pgoff);

		return VM_FAULT_SIGBUS;

	}
@@ -399,9 +396,8 @@ static int dev_dax_huge_fault(struct vm_fault *vmf, 
	struct file *filp = vmf->vma->vm_file;

	struct dev_dax *dev_dax = filp->private_data;



	dev_dbg(&dev_dax->dev, "%s: %s: %s (%#lx - %#lx) size = %d\n", __func__,

			current->comm, (vmf->flags & FAULT_FLAG_WRITE)

			? "write" : "read",

	dev_dbg(&dev_dax->dev, "%s: %s (%#lx - %#lx) size = %d\n", current->comm,

			(vmf->flags & FAULT_FLAG_WRITE) ? "write" : "read",

			vmf->vma->vm_start, vmf->vma->vm_end, pe_size);



	id = dax_read_lock();
@@ -450,7 +446,7 @@ static int dax_mmap(struct file *filp, struct vm_area_struct *vma) 
	struct dev_dax *dev_dax = filp->private_data;

	int rc, id;



	dev_dbg(&dev_dax->dev, "%s\n", __func__);

	dev_dbg(&dev_dax->dev, "trace\n");



	/*

	 * We lock to check dax_dev liveness and will re-check at
@@ -508,7 +504,7 @@ static int dax_open(struct inode *inode, struct file *filp) 
	struct inode *__dax_inode = dax_inode(dax_dev);

	struct dev_dax *dev_dax = dax_get_private(dax_dev);



	dev_dbg(&dev_dax->dev, "%s\n", __func__);

	dev_dbg(&dev_dax->dev, "trace\n");

	inode->i_mapping = __dax_inode->i_mapping;

	inode->i_mapping->host = __dax_inode;

	filp->f_mapping = inode->i_mapping;
@@ -523,7 +519,7 @@ static int dax_release(struct inode *inode, struct file *filp) 
{

	struct dev_dax *dev_dax = filp->private_data;



	dev_dbg(&dev_dax->dev, "%s\n", __func__);

	dev_dbg(&dev_dax->dev, "trace\n");

	return 0;

}
@@ -565,7 +561,7 @@ static void unregister_dev_dax(void *dev) 
	struct inode *inode = dax_inode(dax_dev);

	struct cdev *cdev = inode->i_cdev;



	dev_dbg(dev, "%s\n", __func__);

	dev_dbg(dev, "trace\n");



	kill_dev_dax(dev_dax);

	cdev_device_del(cdev, dev);

drivers/dax/pmem.c

+3 −3
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ static void dax_pmem_percpu_release(struct percpu_ref *ref) 
{

	struct dax_pmem *dax_pmem = to_dax_pmem(ref);



	dev_dbg(dax_pmem->dev, "%s\n", __func__);

	dev_dbg(dax_pmem->dev, "trace\n");

	complete(&dax_pmem->cmp);

}
@@ -43,7 +43,7 @@ static void dax_pmem_percpu_exit(void *data) 
	struct percpu_ref *ref = data;

	struct dax_pmem *dax_pmem = to_dax_pmem(ref);



	dev_dbg(dax_pmem->dev, "%s\n", __func__);

	dev_dbg(dax_pmem->dev, "trace\n");

	wait_for_completion(&dax_pmem->cmp);

	percpu_ref_exit(ref);

}
@@ -53,7 +53,7 @@ static void dax_pmem_percpu_kill(void *data) 
	struct percpu_ref *ref = data;

	struct dax_pmem *dax_pmem = to_dax_pmem(ref);



	dev_dbg(dax_pmem->dev, "%s\n", __func__);

	dev_dbg(dax_pmem->dev, "trace\n");

	percpu_ref_kill(ref);

}