On Mon, Feb 01, 2021 at 09:26:51PM +0800, Tianjia Zhang wrote: > 'section->free_cnt' represents the free page in sgx_epc_section, > which is assigned once after initialization. In fact, just after the > initialization is completed, the pages are in the init_laundry_list > list and cannot be allocated. This needs to be recovered by EREMOVE > of function sgx_sanitize_section() before it can be used as a page > that can be allocated. The sgx_sanitize_section() will be called in > the kernel thread ksgxd. > > This patch moves the initialization of 'section->free_cnt' from the > initialization function sgx_setup_epc_section() to the function > sgx_sanitize_section(), and then accumulates the count after the > successful execution of EREMOVE. This seems to be more reasonable, > free_cnt will also truly reflect the allocatable free pages in EPC. > > Sined-off-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx> > Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx> I just copy-paste my earlier response to save time sice you seem to save time by ignoring it and spamming with the same obviously illegit patch. https://lore.kernel.org/linux-sgx/YBGlodsOaX4cWAtl@xxxxxxxxxx/ /Jarkko
