e1000: convert to private mutex from rtnl

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The e1000 driver when running with lockdep could run into
some possible deadlocks between the work items acquiring
rtnl and the rtnl lock being acquired before work items
were cancelled.

Use a private mutex to make sure lock ordering isn't violated.
The private mutex is only used to protect areas not generally
covered by the rtnl lock already.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Tushar Dave <tushar.n.dave@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Jesse Brandeburg 2011-10-05 07:24:51 +00:00 • committed by Jeff Kirsher

parent 4e0d8f7d97

commit 0ef4eedc2e

2 changed files with 31 additions and 9 deletions

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2

drivers/net/ethernet/intel/e1000/e1000.h

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38

drivers/net/ethernet/intel/e1000/e1000_main.c

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