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implement sys_munmap()

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NAKAMURA Gou
2013-07-16 19:52:34 +09:00
parent 334662b7fe
commit deb9cd4e75
6 changed files with 254 additions and 87 deletions
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13
kernel/syscall.c
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@@ -173,8 +173,14 @@ SYSCALL_DECLARE(exit_group)
static int do_munmap(void *addr, size_t len)
{
return remove_process_memory_range(
cpu_local_var(current), (intptr_t)addr, (intptr_t)addr+len);
int error;
begin_free_pages_pending();
error = remove_process_memory_range(cpu_local_var(current),
(intptr_t)addr, (intptr_t)addr+len);
// XXX: TLB flush
finish_free_pages_pending();
return error;
}
static int search_free_space(size_t len, intptr_t hint, intptr_t *addrp)
@@ -488,6 +494,7 @@ SYSCALL_DECLARE(mprotect)
}
ihk_mc_spinlock_lock_noirq(&proc->vm->memory_range_lock);
begin_free_pages_pending();
/* check contiguous map */
first = NULL;
@@ -572,6 +579,8 @@ SYSCALL_DECLARE(mprotect)
error = 0;
out:
// XXX: TLB flush
finish_free_pages_pending();
ihk_mc_spinlock_unlock_noirq(&proc->vm->memory_range_lock);
dkprintf("[%d]sys_mprotect(%lx,%lx,%x): %d\n",
ihk_mc_get_processor_id(), start, len0, prot, error);