diff options
| author | Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:35:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:35:44 +0100 |
| commit | df10846ff2ac3b0a7b295be2de2e9215877982f3 (patch) | |
| tree | 9e5ff5583aa1547afd3c577815af81c2f328e288 /drivers/xen/xenbus/xenbus_probe_backend.c | |
| parent | a4654e9bde4ecedb4921e6c8fe2088114bdff1b3 (diff) | |
| parent | 5ad0ec0b86525d0c5d3d250d3cfad7f183b00cfa (diff) | |
Merge branch 'linus' into locking/kcsan, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe_backend.c')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe_backend.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c index 791f6fe01e91..9b2fbe69bccc 100644 --- a/drivers/xen/xenbus/xenbus_probe_backend.c +++ b/drivers/xen/xenbus/xenbus_probe_backend.c @@ -45,6 +45,7 @@ #include <linux/mm.h> #include <linux/notifier.h> #include <linux/export.h> +#include <linux/semaphore.h> #include <asm/page.h> #include <asm/pgtable.h> @@ -257,10 +258,10 @@ static int backend_reclaim_memory(struct device *dev, void *data) drv = to_xenbus_driver(dev->driver); if (drv && drv->reclaim_memory) { xdev = to_xenbus_device(dev); - if (!spin_trylock(&xdev->reclaim_lock)) + if (down_trylock(&xdev->reclaim_sem)) return 0; drv->reclaim_memory(xdev); - spin_unlock(&xdev->reclaim_lock); + up(&xdev->reclaim_sem); } return 0; } |