[RFC PATCH V3 26/43] rv64ilp32_abi: file_ref: Use 32-bit width for refcnt
From: guoren@kernel.org
Date: 2025-03-25 12:23:00
Also in:
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Subsystem:
the rest · Maintainer:
Linus Torvalds
From: "Guo Ren (Alibaba DAMO Academy)" <guoren@kernel.org> The sizeof(atomic_t) is 4 in rv64ilp32 abi linux kernel, which could provide a higher density of cache and a smaller memory footprint. Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@kernel.org> --- include/linux/file_ref.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/file_ref.h b/include/linux/file_ref.h
index 9b3a8d9b17ab..ce9b47359e14 100644
--- a/include/linux/file_ref.h
+++ b/include/linux/file_ref.h@@ -27,7 +27,7 @@ * 0xFFFFFFFFFFFFFFFFUL */ -#ifdef CONFIG_64BIT +#if BITS_PER_LONG == 64 #define FILE_REF_ONEREF 0x0000000000000000UL #define FILE_REF_MAXREF 0x7FFFFFFFFFFFFFFFUL #define FILE_REF_SATURATED 0xA000000000000000UL
@@ -44,7 +44,7 @@ #endif typedef struct { -#ifdef CONFIG_64BIT +#if BITS_PER_LONG == 64 atomic64_t refcnt; #else atomic_t refcnt;
--
2.40.1