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authorChristoph Hellwig <hch@lst.de>2020-06-17 09:37:53 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-17 10:57:41 -0700
commitfe557319aa06c23cffc9346000f119547e0f289a (patch)
tree575c46f0a54b789a7f942e3366ade6f0f90f6212 /include/linux/uaccess.h
parentb3a9e3b9622ae10064826dccb4f7a52bd88c7407 (diff)
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
Better describe what these functions do. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/uaccess.h')
-rw-r--r--include/linux/uaccess.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 7bcadca22100..70a3d9cd9113 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -301,13 +301,14 @@ copy_struct_from_user(void *dst, size_t ksize, const void __user *src,
return 0;
}
-bool probe_kernel_read_allowed(const void *unsafe_src, size_t size);
+bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size);
-extern long probe_kernel_read(void *dst, const void *src, size_t size);
-extern long probe_user_read(void *dst, const void __user *src, size_t size);
+long copy_from_kernel_nofault(void *dst, const void *src, size_t size);
+long notrace copy_to_kernel_nofault(void *dst, const void *src, size_t size);
-extern long notrace probe_kernel_write(void *dst, const void *src, size_t size);
-extern long notrace probe_user_write(void __user *dst, const void *src, size_t size);
+extern long probe_user_read(void *dst, const void __user *src, size_t size);
+extern long notrace probe_user_write(void __user *dst, const void *src,
+ size_t size);
long strncpy_from_kernel_nofault(char *dst, const void *unsafe_addr,
long count);
@@ -324,7 +325,7 @@ long strnlen_user_nofault(const void __user *unsafe_addr, long count);
* Returns 0 on success, or -EFAULT.
*/
#define probe_kernel_address(addr, retval) \
- probe_kernel_read(&retval, addr, sizeof(retval))
+ copy_from_kernel_nofault(&retval, addr, sizeof(retval))
#ifndef user_access_begin
#define user_access_begin(ptr,len) access_ok(ptr, len)