signal: Document glibc's si_code of SI_ASYNCNL

The header uapi/asm-generic/siginfo.h appears to the the repository of
all of these definitions in linux so collect up glibcs additions as
well.  Just to prevent someone from accidentally creating a conflict
in the future.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index 7158421..2d3348a 100644 (file)
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -165,6 +165,7 @@ typedef struct siginfo {
 #define SI_SIGIO       -5              /* sent by queued SIGIO */
 #define SI_TKILL       -6              /* sent by tkill system call */
 #define SI_DETHREAD    -7              /* sent by execve() killing subsidiary threads */
+#define SI_ASYNCNL     -60             /* sent by glibc async name lookup completion */
 
 #define SI_FROMUSER(siptr)     ((siptr)->si_code <= 0)
 #define SI_FROMKERNEL(siptr)   ((siptr)->si_code > 0)