David Woodhouse 9a5d2bd99e ppp: Fix race condition with queue start/stop ... Commit e675f0cc9a ("ppp: Don't stop and restart queue on every TX packet") introduced a race condition which could leave the net queue stopped even when the channel is no longer busy. By calling netif_stop_queue() from ppp_start_xmit(), based on the return value from ppp_xmit_process() but *after* all the locks have been dropped, we could potentially do so *after* the channel has actually finished transmitting and attempted to re-wake the queue. Fix this by moving the netif_stop_queue() into ppp_xmit_process() under the xmit lock. I hadn't done this previously, because it gets called from other places than ppp_start_xmit(). But I now think it's the better option. The net queue *should* be stopped if the channel becomes congested due to writes from pppd, anyway. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-04-13 13:06:47 -04:00
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bsd_comp.c
Kconfig
Makefile
ppp_async.c	ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h>	2012-03-04 20:41:38 -05:00
ppp_deflate.c	ppp: Change copyright notices from ANU to me	2012-03-04 20:41:38 -05:00
ppp_generic.c	ppp: Fix race condition with queue start/stop	2012-04-13 13:06:47 -04:00
ppp_mppe.c
ppp_mppe.h
ppp_synctty.c	ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h>	2012-03-04 20:41:38 -05:00
pppoe.c	ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h>	2012-03-04 20:41:38 -05:00
pppox.c	ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h>	2012-03-04 20:41:38 -05:00
pptp.c	ppp: Move ioctl definitions from if_ppp.h to new ppp-ioctl.h	2012-03-04 20:41:38 -05:00