[SCSI] aacraid: Fix ioctl handling when adapter resets
Received from Mark Salyzyn,
Outstanding ioctl calls still have some problems with aborting cleanly
in the face of a reset iop recovery action should the adapter ever enter
into a Firmware Assert (BlinkLED) condition. The enclosed patch resolves
some uncovered flawed handling.
Signed-off-by: Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index e67ff13..c933df3 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -513,15 +513,15 @@
}
udelay(5);
}
- } else if (down_interruptible(&fibptr->event_wait)) {
- spin_lock_irqsave(&fibptr->event_lock, flags);
- if (fibptr->done == 0) {
- fibptr->done = 2; /* Tell interrupt we aborted */
- spin_unlock_irqrestore(&fibptr->event_lock, flags);
- return -EINTR;
- }
+ } else
+ (void)down_interruptible(&fibptr->event_wait);
+ spin_lock_irqsave(&fibptr->event_lock, flags);
+ if (fibptr->done == 0) {
+ fibptr->done = 2; /* Tell interrupt we aborted */
spin_unlock_irqrestore(&fibptr->event_lock, flags);
+ return -EINTR;
}
+ spin_unlock_irqrestore(&fibptr->event_lock, flags);
BUG_ON(fibptr->done == 0);
if((fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)){
@@ -1062,7 +1062,7 @@
/*
* Loop through the fibs, close the synchronous FIBS
*/
- for (index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) {
+ for (retval = 1, index = 0; index < (aac->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); index++) {
struct fib *fib = &aac->fibs[index];
if (!(fib->hw_fib_va->header.XferState & cpu_to_le32(NoResponseExpected | Async)) &&
(fib->hw_fib_va->header.XferState & cpu_to_le32(ResponseExpected))) {
@@ -1071,8 +1071,12 @@
up(&fib->event_wait);
spin_unlock_irqrestore(&fib->event_lock, flagv);
schedule();
+ retval = 0;
}
}
+ /* Give some extra time for ioctls to complete. */
+ if (retval == 0)
+ ssleep(2);
index = aac->cardtype;
/*