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From: Josef Bacik <josef@toxicpanda.com>
To: hch@lst.de, viro@ZenIV.linux.org.uk,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	willy@infradead.org, kernel-team@fb.com
Subject: [PATCH 2/6] tree-wide: rename vmemdup_user to kvmemdup_user
Date: Thu, 13 Aug 2020 17:04:07 -0400	[thread overview]
Message-ID: <20200813210411.905010-3-josef@toxicpanda.com> (raw)
In-Reply-To: <20200813210411.905010-1-josef@toxicpanda.com>

This helper uses kvmalloc, not vmalloc, so rename it to kvmemdup_user to
make it clear we're using kvmalloc() and will need to use kvfree().

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 arch/x86/kvm/cpuid.c                   | 6 +++---
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 2 +-
 drivers/tty/vt/consolemap.c            | 2 +-
 include/linux/string.h                 | 2 +-
 mm/util.c                              | 6 +++---
 sound/core/control.c                   | 4 ++--
 virt/kvm/kvm_main.c                    | 4 ++--
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 3fd6eec202d7..22834ea499ee 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -200,9 +200,9 @@ int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
 	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
 		goto out;
 	if (cpuid->nent) {
-		cpuid_entries = vmemdup_user(entries,
-					     array_size(sizeof(struct kvm_cpuid_entry),
-							cpuid->nent));
+		cpuid_entries = kvmemdup_user(entries,
+					      array_size(sizeof(struct kvm_cpuid_entry),
+							 cpuid->nent));
 		if (IS_ERR(cpuid_entries)) {
 			r = PTR_ERR(cpuid_entries);
 			goto out;
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 7a2430e34e00..c2f973aa3680 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -147,7 +147,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 		bo_handles = NULL;
 	}
 
-	buf = vmemdup_user(u64_to_user_ptr(exbuf->command), exbuf->size);
+	buf = kvmemdup_user(u64_to_user_ptr(exbuf->command), exbuf->size);
 	if (IS_ERR(buf)) {
 		ret = PTR_ERR(buf);
 		goto out_unused_fd;
diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index 5947b54d92be..2cffa8b3c74b 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -542,7 +542,7 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
 	if (!ct)
 		return 0;
 
-	unilist = vmemdup_user(list, array_size(sizeof(struct unipair), ct));
+	unilist = kvmemdup_user(list, array_size(sizeof(struct unipair), ct));
 	if (IS_ERR(unilist))
 		return PTR_ERR(unilist);
 
diff --git a/include/linux/string.h b/include/linux/string.h
index 21bb6d3d88c4..a6f7218124a0 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -11,7 +11,7 @@
 
 extern char *strndup_user(const char __user *, long);
 extern void *memdup_user(const void __user *, size_t);
-extern void *vmemdup_user(const void __user *, size_t);
+extern void *kvmemdup_user(const void __user *, size_t);
 extern void *kvmemdup_user_nul(const void __user *, size_t);
 extern void *memdup_user_nul(const void __user *, size_t);
 
diff --git a/mm/util.c b/mm/util.c
index cf454d57d3e2..f434634b6ba3 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -183,7 +183,7 @@ void *memdup_user(const void __user *src, size_t len)
 EXPORT_SYMBOL(memdup_user);
 
 /**
- * vmemdup_user - duplicate memory region from user space
+ * kvmemdup_user - duplicate memory region from user space
  *
  * @src: source address in user space
  * @len: number of bytes to copy
@@ -191,7 +191,7 @@ EXPORT_SYMBOL(memdup_user);
  * Return: an ERR_PTR() on failure.  Result may be not
  * physically contiguous.  Use kvfree() to free.
  */
-void *vmemdup_user(const void __user *src, size_t len)
+void *kvmemdup_user(const void __user *src, size_t len)
 {
 	void *p;
 
@@ -206,7 +206,7 @@ void *vmemdup_user(const void __user *src, size_t len)
 
 	return p;
 }
-EXPORT_SYMBOL(vmemdup_user);
+EXPORT_SYMBOL(kvmemdup_user);
 
 /**
  * kvmemdup_user_nul - duplicate memory region from user space and NUL-terminate
diff --git a/sound/core/control.c b/sound/core/control.c
index aa0c0cf182af..b712f4d261de 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -1297,7 +1297,7 @@ static int replace_user_tlv(struct snd_kcontrol *kctl, unsigned int __user *buf,
 	if (size > 1024 * 128)	/* sane value */
 		return -EINVAL;
 
-	container = vmemdup_user(buf, size);
+	container = kvmemdup_user(buf, size);
 	if (IS_ERR(container))
 		return PTR_ERR(container);
 
@@ -1365,7 +1365,7 @@ static int snd_ctl_elem_init_enum_names(struct user_element *ue)
 	if (ue->info.value.enumerated.names_length > 64 * 1024)
 		return -EINVAL;
 
-	names = vmemdup_user((const void __user *)user_ptrval,
+	names = kvmemdup_user((const void __user *)user_ptrval,
 		ue->info.value.enumerated.names_length);
 	if (IS_ERR(names))
 		return PTR_ERR(names);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 737666db02de..1111780ccefd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3814,8 +3814,8 @@ static long kvm_vm_ioctl(struct file *filp,
 			goto out;
 		if (routing.nr) {
 			urouting = argp;
-			entries = vmemdup_user(urouting->entries,
-					       array_size(sizeof(*entries),
+			entries = kvmemdup_user(urouting->entries,
+						array_size(sizeof(*entries),
 							  routing.nr));
 			if (IS_ERR(entries)) {
 				r = PTR_ERR(entries);
-- 
2.24.1


  parent reply	other threads:[~2020-08-13 21:04 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-13 21:04 [PATCH 0/6] Some buffer management fixes for proc Josef Bacik
2020-08-13 21:04 ` [PATCH 1/6] proc: use vmalloc for our kernel buffer Josef Bacik
2020-09-01 15:14   ` Christoph Hellwig
2020-08-13 21:04 ` Josef Bacik [this message]
2020-09-01 15:14   ` [PATCH 2/6] tree-wide: rename vmemdup_user to kvmemdup_user Christoph Hellwig
2020-08-13 21:04 ` [PATCH 3/6] proc: allocate count + 1 for our read buffer Josef Bacik
2020-09-01 15:14   ` Christoph Hellwig
2020-08-13 21:04 ` [PATCH 4/6] sysctl: make proc_put_long() use scnprintf Josef Bacik
2020-09-01 15:15   ` Christoph Hellwig
2020-08-13 21:04 ` [PATCH 5/6] parport: rework procfs handlers to take advantage of the new buffer Josef Bacik
2020-09-01 15:15   ` Christoph Hellwig
2020-08-13 21:04 ` [PATCH 6/6] sunrpc: rework proc " Josef Bacik
2020-09-01 15:15   ` Christoph Hellwig

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