On Fri, May 29, 2015 at 3:20 PM, Jakub Kicinski <moorray3@xxxxx> wrote: > From: Jakub Kicinski <kubakici@xxxxx> > > Hi, > > this is a mixed bag of small improvements and a slightly > bigger work to stop using blocking I/O in atomic sections. > > I start off with 3 small patches which have been sitting in > my queue for quite a while. > > Fourth patch create a real-time kworker which is used in next > patches to handle device configuration initiated in context > where the driver is not allowed to block. > > Greg, this is on top of Rama's SPI patches for sc16is7xx. > > Jon, I *think* I came up with a way to preserve the > .delay_rts_before_send behaviour that you need without the > mdelay() inside atomic context. In the first patch I only > remove .delay_rts_after_send handling. Patch #5 moves the > delay into thread context and changes it into sleep. It > should still have the same effect, though, as TX cannot > progress while the thread is blocked. I would appreciate > if you gave this patchset a go and see if it works for your > application. I tested this patch series with my app and it is working fine. For all patches in series: Signed-off-by: Jon Ringle <jringle@xxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
