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authorNeel Chauhan <nc@FreeBSD.org>2021-04-28 15:05:57 +0000
committerNeel Chauhan <nc@FreeBSD.org>2021-04-28 15:05:57 +0000
commit9781105bea58b8bce53ba766850c5f023b34c43c (patch)
tree754eebafc0d00936230147448da69f296c36e7ff
parentefe7f12cd37bf8f2538df387d565e7849112a598 (diff)
downloadsrc-9781105bea58b8bce53ba766850c5f023b34c43c.tar.gz
src-9781105bea58b8bce53ba766850c5f023b34c43c.zip
linuxkpi: Introduce tasklet_disable_nosync()
This is needed for the drm-kmod 5.5 update. Reviewed by: hselasky (src) MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D30024
-rw-r--r--sys/compat/linuxkpi/common/include/linux/interrupt.h1
-rw-r--r--sys/compat/linuxkpi/common/src/linux_tasklet.c7
2 files changed, 8 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/interrupt.h b/sys/compat/linuxkpi/common/include/linux/interrupt.h
index ca26cd24ffda..fc1241240b39 100644
--- a/sys/compat/linuxkpi/common/include/linux/interrupt.h
+++ b/sys/compat/linuxkpi/common/include/linux/interrupt.h
@@ -208,6 +208,7 @@ extern void tasklet_init(struct tasklet_struct *, tasklet_func_t *,
unsigned long data);
extern void tasklet_enable(struct tasklet_struct *);
extern void tasklet_disable(struct tasklet_struct *);
+extern void tasklet_disable_nosync(struct tasklet_struct *);
extern int tasklet_trylock(struct tasklet_struct *);
extern void tasklet_unlock(struct tasklet_struct *);
extern void tasklet_unlock_wait(struct tasklet_struct *ts);
diff --git a/sys/compat/linuxkpi/common/src/linux_tasklet.c b/sys/compat/linuxkpi/common/src/linux_tasklet.c
index 5cac8ffd994c..9a4c01737466 100644
--- a/sys/compat/linuxkpi/common/src/linux_tasklet.c
+++ b/sys/compat/linuxkpi/common/src/linux_tasklet.c
@@ -227,6 +227,13 @@ tasklet_disable(struct tasklet_struct *ts)
tasklet_unlock_wait(ts);
}
+void
+tasklet_disable_nosync(struct tasklet_struct *ts)
+{
+ atomic_inc(&ts->count);
+ barrier();
+}
+
int
tasklet_trylock(struct tasklet_struct *ts)
{