Re: [PATCH v2 3/3] scsi: qla2xxx: set UNLOADING before waiting for session deletion

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On Wed, Feb 05, 2020 at 10:44:22PM +0100, mwilck@xxxxxxxx wrote:
> From: Martin Wilck <mwilck@xxxxxxxx>
> 
> The purpose of the UNLOADING flag is to avoid port login procedures
> to continue when a controller is in the process of shutting down.
> It makes sense to set this flag before starting session teardown.
> The only operations that must be able to continue are LOGO, PRLO,
> and the like.
> 
> Furthermore, use atomic test_and_set_bit() to avoid the shutdown
> being run multiple times in parallel. In qla2x00_disable_board_on_pci_error(),
> the test for UNLOADING is postponed until after the check for an already
> disabled PCI board.
> 
> Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>

Reviewed-by: Daniel Wagner <dwagner@xxxxxxx>



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