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mcexec: RLIMIT_STACK handling

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This commit is contained in:
Balazs Gerofi
2017-02-14 08:57:15 +09:00
parent 721cee05a2
commit 989af7e045
2 changed files with 23 additions and 15 deletions
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12
kernel/process.c
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@@ -1918,9 +1918,14 @@ int init_process_stack(struct thread *thread, struct program_load_desc *pn,
/* Create stack range */
end = STACK_TOP(&thread->vm->region) & LARGE_PAGE_MASK;
minsz = LARGE_PAGE_SIZE;
size = (proc->rlimit[MCK_RLIMIT_STACK].rlim_cur
minsz = (proc->rlimit[MCK_RLIMIT_STACK].rlim_cur
+ LARGE_PAGE_SIZE - 1) & LARGE_PAGE_MASK;
size = (proc->rlimit[MCK_RLIMIT_STACK].rlim_max
+ LARGE_PAGE_SIZE - 1) & LARGE_PAGE_MASK;
dkprintf("%s: rlim_max: %lu, rlim_cur: %lu\n",
__FUNCTION__,
proc->rlimit[MCK_RLIMIT_STACK].rlim_max,
proc->rlimit[MCK_RLIMIT_STACK].rlim_cur);
if (size > (USER_END / 2)) {
size = USER_END / 2;
}
@@ -1933,7 +1938,8 @@ int init_process_stack(struct thread *thread, struct program_load_desc *pn,
/* TODO: make threshold kernel or mcexec argument */
ap_flag = (size >= proc->mpol_threshold &&
!(proc->mpol_flags & MPOL_NO_STACK)) ? IHK_MC_AP_USER : 0;
dkprintf("%s: size: %lu %s\n", __FUNCTION__, size,
dkprintf("%s: max size: %lu, mapped size: %lu %s\n",
__FUNCTION__, size, minsz,
ap_flag ? "(IHK_MC_AP_USER)" : "");
stack = ihk_mc_alloc_aligned_pages(minsz >> PAGE_SHIFT,