Messages in this thread Patch in this message | | | Subject | [PATCH 1/3] drivers/scsi/ibmmca.c: Replacing yield() with a better alternative | From | Amol Lad <> | Date | Wed, 11 Oct 2006 18:24:01 +0530 |
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In 2.6, the semantics of calling yield() changed from "sleep for a bit" to "I really don't want to run for a while". This matches POSIX better, but there's a lot of drivers still using yield() when they mean cond_resched(), schedule() or even schedule_timeout().
For this driver cond_resched() seems to be a better alternative
Tested compile only
Signed-off-by: Amol Lad <amol@verismonetworks.com> --- diff -uprN -X linux-2.6.19-rc1-orig/Documentation/dontdiff linux-2.6.19-rc1-orig/drivers/scsi/ibmmca.c linux-2.6.19-rc1/drivers/scsi/ibmmca.c --- linux-2.6.19-rc1-orig/drivers/scsi/ibmmca.c 2006-09-21 10:15:39.000000000 +0530 +++ linux-2.6.19-rc1/drivers/scsi/ibmmca.c 2006-10-11 17:57:02.000000000 +0530 @@ -2268,7 +2268,7 @@ static int __ibmmca_host_reset(Scsi_Cmnd if (!(inb(IM_STAT_REG(host_index)) & IM_BUSY)) break; spin_unlock_irq(shpnt->host_lock); - yield(); + cond_resched(); spin_lock_irq(shpnt->host_lock); } /*write registers and enable system interrupts */
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