linux-kernel - RE: [PATCH net-next v2 2/3] r8152: clear theflagofSCHEDULE

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Date:	Mon, 3 Nov 2014 12:35:29 +0000
From:	Hayes Wang <hayeswang@...ltek.com>
To:	Francois Romieu <romieu@...zoreil.com>
CC:	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	nic_swsd <nic_swsd@...ltek.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: [PATCH net-next v2 2/3] r8152: clear theflagofSCHEDULE_TASKLETin tasklet

 Francois Romieu [mailto:romieu@...zoreil.com] 
[...]
> test_and_clear_bit (dense) or clear_bit would be more idiomatic.

Excuse me. If I use clear_bit without test_bit or test_and_clear_bit,
they alwayes call the spin lock. However, for my original flow, the spin
lock is only called when the clear_bit is necessary. Is that better?
 
Best Regards,
Hayes
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