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drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()

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This commit replaces the use of rcu_swap_protected() with the more
intuitively appealing rcu_replace_pointer() as a step towards removing
rcu_swap_protected().

Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4gg6Hw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
[ paulmck: From rcu_replace() to rcu_replace_pointer() per Ingo Molnar. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: <linux-scsi@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
This commit is contained in:
Paul E. McKenney 2019-09-23 15:26:28 -07:00
parent 1feace5d6a
commit c0eaf15cd5
2 changed files with 6 additions and 6 deletions
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4
drivers/scsi/scsi.c
View File

@ -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_pointer(*sdev_vpd_buf, vpd_buf,
lockdep_is_held(&sdev->inquiry_mutex));
mutex_unlock(&sdev->inquiry_mutex);
if (vpd_buf)

8
drivers/scsi/scsi_sysfs.c
View File

@ -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_pointer(sdev->vpd_pg80, vpd_pg80,
lockdep_is_held(&sdev->inquiry_mutex));
vpd_pg83 = rcu_replace_pointer(sdev->vpd_pg83, vpd_pg83,
lockdep_is_held(&sdev->inquiry_mutex));
mutex_unlock(&sdev->inquiry_mutex);
if (vpd_pg83)