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authorDaniel Vetter <daniel.vetter@ffwll.ch>2019-05-28 12:02:35 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2019-06-12 21:27:13 +0300
commitddde3c18b70061cc09b84a52624909349c212822 (patch)
tree6dda603611fbbcb6bdafea499f4977046ef1e972 /include/linux/console_struct.h
parenta135513c0b579be55c534b35e628be55578576b2 (diff)
downloadlinux-ddde3c18b70061cc09b84a52624909349c212822.tar.xz
vt: More locking checks
I honestly have no idea what the subtle differences between con_is_visible, con_is_fg (internal to vt.c) and con_is_bound are. But it looks like both vc->vc_display_fg and con_driver_map are protected by the console_lock, so probably better if we hold that when checking this. To do that I had to deinline the con_is_visible function. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Martin Hostettler <textshell@uchuujin.de> Cc: Adam Borowski <kilobyte@angband.pl> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Mikulas Patocka <mpatocka@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528090304.9388-5-daniel.vetter@ffwll.ch
Diffstat (limited to 'include/linux/console_struct.h')
-rw-r--r--include/linux/console_struct.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index ed798e114663..24d4c16e3ae0 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -168,9 +168,6 @@ extern void vc_SAK(struct work_struct *work);
#define CUR_DEFAULT CUR_UNDERLINE
-static inline bool con_is_visible(const struct vc_data *vc)
-{
- return *vc->vc_display_fg == vc;
-}
+bool con_is_visible(const struct vc_data *vc);
#endif /* _LINUX_CONSOLE_STRUCT_H */