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authorChristoph Hellwig <hch@lst.de>2020-06-17 10:37:53 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-17 20:57:41 +0300
commitfe557319aa06c23cffc9346000f119547e0f289a (patch)
tree575c46f0a54b789a7f942e3366ade6f0f90f6212 /arch/x86/mm/maccess.c
parentb3a9e3b9622ae10064826dccb4f7a52bd88c7407 (diff)
downloadlinux-fe557319aa06c23cffc9346000f119547e0f289a.tar.xz
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 'arch/x86/mm/maccess.c')
-rw-r--r--arch/x86/mm/maccess.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/maccess.c b/arch/x86/mm/maccess.c
index e1d7d7477c22..92ec176a7293 100644
--- a/arch/x86/mm/maccess.c
+++ b/arch/x86/mm/maccess.c
@@ -9,7 +9,7 @@ static __always_inline u64 canonical_address(u64 vaddr, u8 vaddr_bits)
return ((s64)vaddr << (64 - vaddr_bits)) >> (64 - vaddr_bits);
}
-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)
{
unsigned long vaddr = (unsigned long)unsafe_src;
@@ -22,7 +22,7 @@ bool probe_kernel_read_allowed(const void *unsafe_src, size_t size)
canonical_address(vaddr, boot_cpu_data.x86_virt_bits) == vaddr;
}
#else
-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)
{
return (unsigned long)unsafe_src >= TASK_SIZE_MAX;
}