let me explain myself :
for example , open syscall calls sys_open then do_sys_open so
like: do_sys_open -> do_filp_open -> link_path_walk -> so on.
so while the cpu is executing the link_path_walk , is there any procedure in kernel to check for the interrupt vector number which caused it to be invoked?
i mean like one of my friends said that when kernel is about to restart a syscall then it raises signal -ERESTARTSYS signal for signal handler. but i think it is for
something went wrong and kernel wanna start the syscall again. but in between a syscall routine is it possible to get vector number (i repeat ,sorry) ??
thanks in advance for help
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MOHIT VERMA
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