Re: [PATCH] RFC: have tcp_recvmsg() check kthread_should_stop() and treat it as if it were signalled

From: Satyam Sharma
Date: Thu Jun 28 2007 - 12:19:52 EST


On 6/28/07, Oleg Nesterov <oleg@xxxxxxxxxx> wrote:
> [...]
> Hmm... actually, such a change breaks the
>
> while (signal_pending(current))
> dequeue_signal_and_so_something();
>
> loop, see jffs2_garbage_collect_thread() for example.

BTW jffs2_garbage_collect_thread() is a horrible abomination :-)
Its use of SIGSTOP and SIGHUP is *totally* gratuitous & unwarranted.
It does use SIGKILL, but simply as a stop-notification from umount
of the corresponding jffs2 partition.

I think all the signal handling there can be removed; then it needs
to undergo conversion to kthread (it uses horrible locks and
completions to handle its exit) -- I'll put it in my endless
kernel-cleanups-todo-list ...
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