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No memory unmapping when shutting down

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All the memory is just freed implicitly on exit, no need for
page-by-page unmapping.
This commit is contained in:
Maria Matejka 2021-12-01 22:02:42 +00:00
parent b2bac7ae91
commit 38278d94ba
1 changed files with 5 additions and 3 deletions
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8
sysdep/unix/alloc.c
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@ -46,6 +46,8 @@ alloc_sys_page(void)
return ptr;
}
extern int shutting_down; /* Shutdown requested. */
void *
alloc_page(void)
{
@ -58,7 +60,7 @@ alloc_page(void)
node *n = HEAD(fp->list);
rem_node(n);
if (--fp->cnt < fp->min)
if (!shutting_down && (--fp->cnt < fp->min))
ev_send(&global_work_list, fp->cleanup);
void *ptr = n - FP_NODE_OFFSET;
@ -87,7 +89,7 @@ free_page(void *ptr)
memset(n, 0, sizeof(node));
add_tail(&fp->list, n);
if (++fp->cnt > fp->max)
if (!shutting_down && (++fp->cnt > fp->max))
ev_send(&global_work_list, fp->cleanup);
}
else
@ -151,7 +153,7 @@ cleanup_pages(void *data)
birdloop_leave(loop);
if (GFP->cnt > GFP->max)
if (!shutting_down && (GFP->cnt > GFP->max))
ev_send(&global_work_list, GFP->cleanup);
}