Re: [PATCH v3 2/5] x86/sgx: Optimize the locking range in sgx_sanitize_section()

On Sun, Jan 24, 2021 at 02:29:04PM +0800, Tianjia Zhang wrote:

The spin lock of sgx_epc_section only locks the page_list. The EREMOVE operation and init_laundry_list is not necessary in the protection range of the spin lock. This patch reduces the lock range of the spin lock in the function sgx_sanitize_section() and only protects the operation of the page_list.

Suggested-by: Sean Christopherson seanjc@google.com Signed-off-by: Tianjia Zhang tianjia.zhang@linux.alibaba.com

I prefer to use the word "optimize" only if there is supporting data to show that the code change has significant value.

/Jarkko