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authorAlexander Usyskin <alexander.usyskin@intel.com>2020-08-18 13:51:40 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-18 15:44:43 +0200
commitd1376f3d89d5177dae7cae40f3f9fdf73e9bfec9 (patch)
tree045c2bcecb3c06c27ac7793af635da0de5ce5d2a /drivers/misc/mei/client.h
parentmei: bump hbm version to 2.2 (diff)
downloadlinux-d1376f3d89d5177dae7cae40f3f9fdf73e9bfec9.tar.xz
linux-d1376f3d89d5177dae7cae40f3f9fdf73e9bfec9.zip
mei: add a spin lock to protect rd_completed queue
In order to support vtags we need to access read completed queue out of driver big lock. Add a spin lock to protect rd_completed queue. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200818115147.2567012-7-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/client.h')
-rw-r--r--drivers/misc/mei/client.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 0d0f36373a4b..bd57c64f6c1a 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -133,8 +133,11 @@ int mei_cl_unlink(struct mei_cl *cl);
struct mei_cl *mei_cl_alloc_linked(struct mei_device *dev);
-struct mei_cl_cb *mei_cl_read_cb(const struct mei_cl *cl,
- const struct file *fp);
+struct mei_cl_cb *mei_cl_read_cb(struct mei_cl *cl, const struct file *fp);
+
+void mei_cl_add_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb);
+void mei_cl_del_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb);
+
struct mei_cl_cb *mei_cl_alloc_cb(struct mei_cl *cl, size_t length,
enum mei_cb_file_ops type,
const struct file *fp);