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authorSrikant Patnaik2015-01-13 15:08:24 +0530
committerSrikant Patnaik2015-01-13 15:08:24 +0530
commit97327692361306d1e6259021bc425e32832fdb50 (patch)
treefe9088f3248ec61e24f404f21b9793cb644b7f01 /include/linux/signalfd.h
parent2d05a8f663478a44e088d122e0d62109bbc801d0 (diff)
parenta3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff)
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dirty fix to merging
Diffstat (limited to 'include/linux/signalfd.h')
-rw-r--r--include/linux/signalfd.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
new file mode 100644
index 00000000..247399b2
--- /dev/null
+++ b/include/linux/signalfd.h
@@ -0,0 +1,76 @@
+/*
+ * include/linux/signalfd.h
+ *
+ * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
+ *
+ */
+
+#ifndef _LINUX_SIGNALFD_H
+#define _LINUX_SIGNALFD_H
+
+#include <linux/types.h>
+/* For O_CLOEXEC and O_NONBLOCK */
+#include <linux/fcntl.h>
+
+/* Flags for signalfd4. */
+#define SFD_CLOEXEC O_CLOEXEC
+#define SFD_NONBLOCK O_NONBLOCK
+
+struct signalfd_siginfo {
+ __u32 ssi_signo;
+ __s32 ssi_errno;
+ __s32 ssi_code;
+ __u32 ssi_pid;
+ __u32 ssi_uid;
+ __s32 ssi_fd;
+ __u32 ssi_tid;
+ __u32 ssi_band;
+ __u32 ssi_overrun;
+ __u32 ssi_trapno;
+ __s32 ssi_status;
+ __s32 ssi_int;
+ __u64 ssi_ptr;
+ __u64 ssi_utime;
+ __u64 ssi_stime;
+ __u64 ssi_addr;
+ __u16 ssi_addr_lsb;
+
+ /*
+ * Pad strcture to 128 bytes. Remember to update the
+ * pad size when you add new members. We use a fixed
+ * size structure to avoid compatibility problems with
+ * future versions, and we leave extra space for additional
+ * members. We use fixed size members because this strcture
+ * comes out of a read(2) and we really don't want to have
+ * a compat on read(2).
+ */
+ __u8 __pad[46];
+};
+
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_SIGNALFD
+
+/*
+ * Deliver the signal to listening signalfd.
+ */
+static inline void signalfd_notify(struct task_struct *tsk, int sig)
+{
+ if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh)))
+ wake_up(&tsk->sighand->signalfd_wqh);
+}
+
+extern void signalfd_cleanup(struct sighand_struct *sighand);
+
+#else /* CONFIG_SIGNALFD */
+
+static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
+
+static inline void signalfd_cleanup(struct sighand_struct *sighand) { }
+
+#endif /* CONFIG_SIGNALFD */
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_SIGNALFD_H */