linux-kernel - [PATCH 1/5] mm: Add a leading 0 to the VM_FAULT

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Message-Id: <20221203030356.3917-2-palmer@rivosinc.com>
Date:   Fri,  2 Dec 2022 19:03:52 -0800
From:   Palmer Dabbelt <palmer@...osinc.com>
To:        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
           linux-s390@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Palmer Dabbelt <palmer@...osinc.com>
Subject: [PATCH 1/5] mm: Add a leading 0 to the VM_FAULT_* types

The next patch will add enough codes to need another character, this
adds the 0 to all the existing codes to keep alignment.

Signed-off-by: Palmer Dabbelt <palmer@...osinc.com>
---
 include/linux/mm_types.h | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 500e536796ca..758eb70829cb 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -862,24 +862,24 @@ typedef __bitwise unsigned int vm_fault_t;
  *				in DAX)
  * @VM_FAULT_COMPLETED:		->fault completed, meanwhile mmap lock released
  * @VM_FAULT_HINDEX_MASK:	mask HINDEX value
- *
+ * @VM_FAULT_ARCH_*:		Architecture-specific VM fault codes.
  */
 enum vm_fault_reason {
-	VM_FAULT_OOM            = (__force vm_fault_t)0x000001,
-	VM_FAULT_SIGBUS         = (__force vm_fault_t)0x000002,
-	VM_FAULT_MAJOR          = (__force vm_fault_t)0x000004,
-	VM_FAULT_WRITE          = (__force vm_fault_t)0x000008,
-	VM_FAULT_HWPOISON       = (__force vm_fault_t)0x000010,
-	VM_FAULT_HWPOISON_LARGE = (__force vm_fault_t)0x000020,
-	VM_FAULT_SIGSEGV        = (__force vm_fault_t)0x000040,
-	VM_FAULT_NOPAGE         = (__force vm_fault_t)0x000100,
-	VM_FAULT_LOCKED         = (__force vm_fault_t)0x000200,
-	VM_FAULT_RETRY          = (__force vm_fault_t)0x000400,
-	VM_FAULT_FALLBACK       = (__force vm_fault_t)0x000800,
-	VM_FAULT_DONE_COW       = (__force vm_fault_t)0x001000,
-	VM_FAULT_NEEDDSYNC      = (__force vm_fault_t)0x002000,
-	VM_FAULT_COMPLETED      = (__force vm_fault_t)0x004000,
-	VM_FAULT_HINDEX_MASK    = (__force vm_fault_t)0x0f0000,
+	VM_FAULT_OOM            = (__force vm_fault_t)0x0000001,
+	VM_FAULT_SIGBUS         = (__force vm_fault_t)0x0000002,
+	VM_FAULT_MAJOR          = (__force vm_fault_t)0x0000004,
+	VM_FAULT_WRITE          = (__force vm_fault_t)0x0000008,
+	VM_FAULT_HWPOISON       = (__force vm_fault_t)0x0000010,
+	VM_FAULT_HWPOISON_LARGE = (__force vm_fault_t)0x0000020,
+	VM_FAULT_SIGSEGV        = (__force vm_fault_t)0x0000040,
+	VM_FAULT_NOPAGE         = (__force vm_fault_t)0x0000100,
+	VM_FAULT_LOCKED         = (__force vm_fault_t)0x0000200,
+	VM_FAULT_RETRY          = (__force vm_fault_t)0x0000400,
+	VM_FAULT_FALLBACK       = (__force vm_fault_t)0x0000800,
+	VM_FAULT_DONE_COW       = (__force vm_fault_t)0x0001000,
+	VM_FAULT_NEEDDSYNC      = (__force vm_fault_t)0x0002000,
+	VM_FAULT_COMPLETED      = (__force vm_fault_t)0x0004000,
+	VM_FAULT_HINDEX_MASK    = (__force vm_fault_t)0x00f0000,
 };
 
 /* Encode hstate index for a hwpoisoned large page */
-- 
2.38.1