AcoSail/kernel_optimize_test
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9b4c8cfaff
kernel_optimize_test/drivers/net/xen-netback
History
Wei Liu e24f8191cc xen-netback: move netif_napi_add before binding interrupt 
Interrupt is enabled when bind_interdomain_evtchn_to_irqhandler returns.
If there's interrupt pending interrupt handler is invoked.

NAPI needs to be initialised before binding interrupt otherwise the
interrupt handler will try to scheduling a NAPI instance that is not
initialised yet, resulting in kernel OOPS.

This fixes a regression introduced in ea2c5e13 ("xen-netback: move NAPI
add/remove calls").

Ideally function calls to create kthreads should also be moved before
binding but I intent to fix this regression with minimal changes and
refactor the code with another patch.

Reported-by: Thomas Leonard <talex5@gmail.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-25 17:31:42 -07:00
..
common.h xen-netback: don't stop dealloc kthread too early 2014-08-13 20:07:44 -07:00
interface.c xen-netback: move netif_napi_add before binding interrupt 2014-08-25 17:31:42 -07:00
Makefile
netback.c xen-netback: don't stop dealloc kthread too early 2014-08-13 20:07:44 -07:00
xenbus.c xen-netback: fix debugfs entry creation 2014-08-13 20:06:43 -07:00