[PATCH OLK-5.10 0/2] fs: mitigatin cacheline false sharing in struct file

The cache false-sharing exists in the struct file, for syscall test case of Unixbench. In a system with a 128B cacheline size, we force set it to 64B alignment to get a better performance.

If we use alignment, it would waste ~192 bytes at worst case for each file struct.

If unsure, say N.

Xie XiuQi (2): fs: mitigatin cacheline false sharing in struct file fs: enable CONFIG_FILE_MITIGATION_FALSE_SHARING by default on arm64

arch/arm64/configs/openeuler_defconfig | 1 + fs/Kconfig | 13 +++++++++ fs/file_table.c | 37 +++++++++++++++++++++++--- 3 files changed, 48 insertions(+), 3 deletions(-)