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SubjectRe: [patch 2/8] isdn/capi: replace interruptible_sleep_on() with wait_event_interruptible()
domen@coderock.org wrote:
>
>
>
> Use wait_event_interruptible() instead of the deprecated
> interruptible_sleep_on(). Patch is straight-forward as current sleep is
> conditionally looped. Patch is compile-tested.
>
> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
> Signed-off-by: Domen Puncer <domen@coderock.org>
> ---
>
>
> kj-domen/drivers/isdn/capi/capi.c | 9 ++-------
> 1 files changed, 2 insertions(+), 7 deletions(-)
>
> diff -puN drivers/isdn/capi/capi.c~int_sleep_on-drivers_isdn_capi_capi drivers/isdn/capi/capi.c
> --- kj/drivers/isdn/capi/capi.c~int_sleep_on-drivers_isdn_capi_capi 2005-03-05 16:11:36.000000000 +0100
> +++ kj-domen/drivers/isdn/capi/capi.c 2005-03-05 16:11:36.000000000 +0100
> @@ -675,13 +675,8 @@ capi_read(struct file *file, char __user
> if (file->f_flags & O_NONBLOCK)
> return -EAGAIN;
>
> - for (;;) {
> - interruptible_sleep_on(&cdev->recvwait);
> - if ((skb = skb_dequeue(&cdev->recvqueue)) != 0)
> - break;
> - if (signal_pending(current))
> - break;
> - }
> + wait_event_interruptible(cdev->recvwait,
> + ((skb = skb_dequeue(&cdev->recvqueue)) == 0));
> if (skb == 0)
> return -ERESTARTNOHAND;
> }

hmm, OK. Putting an expression with side-effect such as this into a macro
which evaluates the expression multiple times is a bit of a worry, but it
appears that everything will work OK.

That being said, I'd prefer that this come in via the ISDN team, after
having been tested please.
-
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