Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [ 06/23] [Suspend2] Disable usermode helper invocations when the freezer is on. | Date | Thu, 26 Jan 2006 13:45:40 +1000 |
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Disable usermode helper invocations when the freezer is on. This avoids deadlocks due to hotplug events occuring while processes are frozen.
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
kernel/kmod.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/kernel/kmod.c b/kernel/kmod.c index 51a8920..12afa2c 100644 --- a/kernel/kmod.c +++ b/kernel/kmod.c @@ -36,6 +36,7 @@ #include <linux/mount.h> #include <linux/kernel.h> #include <linux/init.h> +#include <linux/freezer.h> #include <asm/uaccess.h> extern int max_threads; @@ -249,6 +250,9 @@ int call_usermodehelper_keys(char *path, if (!khelper_wq) return -EBUSY; + if (freezer_is_on()) + return 0; + if (path[0] == '\0') return 0; -- Nigel Cunningham nigel at suspend2 dot net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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