From: "Paul E. McKenney" <paulmck@xxxxxxxxxx> This commit replaces the use of rcu_swap_protected() with the more intuitively appealing rcu_replace() as a step towards removing rcu_swap_protected(). Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@xxxxxxxxxxxxxx/ Reported-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx> Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxx> Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx> Cc: <linux-scsi@xxxxxxxxxxxxxxx> Cc: <linux-kernel@xxxxxxxxxxxxxxx> --- drivers/scsi/scsi.c | 4 ++-- drivers/scsi/scsi_sysfs.c | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 1f5b5c8..6a38d4a 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -434,8 +434,8 @@ static void scsi_update_vpd_page(struct scsi_device *sdev, u8 page, return; mutex_lock(&sdev->inquiry_mutex); - rcu_swap_protected(*sdev_vpd_buf, vpd_buf, - lockdep_is_held(&sdev->inquiry_mutex)); + vpd_buf = rcu_replace(*sdev_vpd_buf, vpd_buf, + lockdep_is_held(&sdev->inquiry_mutex)); mutex_unlock(&sdev->inquiry_mutex); if (vpd_buf) diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 64c96c7..8d17779 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -466,10 +466,10 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work) sdev->request_queue = NULL; mutex_lock(&sdev->inquiry_mutex); - rcu_swap_protected(sdev->vpd_pg80, vpd_pg80, - lockdep_is_held(&sdev->inquiry_mutex)); - rcu_swap_protected(sdev->vpd_pg83, vpd_pg83, - lockdep_is_held(&sdev->inquiry_mutex)); + vpd_pg80 = rcu_replace(sdev->vpd_pg80, vpd_pg80, + lockdep_is_held(&sdev->inquiry_mutex)); + vpd_pg83 = rcu_replace(sdev->vpd_pg83, vpd_pg83, + lockdep_is_held(&sdev->inquiry_mutex)); mutex_unlock(&sdev->inquiry_mutex); if (vpd_pg83) -- 2.9.5
