Guenter Roeck 7c33277b9a samples: fix pidfd-metadata compilation ... Define __NR_pidfd_send_signal if it isn't to prevent a compilation error. To make pidfd-metadata compile on all arches, irrespective of whether or not syscall numbers are assigned, define the syscall number to -1. If it isn't defined this will cause the kernel to return -ENOSYS. Fixes: 43c6afee48 ("samples: show race-free pidfd metadata access") Reported-by: Arnd Bergmann <arnd@arndb.de> Reported-by: Guenter Roeck <linux@roeck-us.net> Cc: Christian Brauner <christian@brauner.io> Signed-off-by: Guenter Roeck <linux@roeck-us.net> [christian@brauner.io: tweak commit message] Signed-off-by: Christian Brauner <christian@brauner.io>		2019-06-05 15:06:07 +02:00
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pidfd-metadata.c	samples: fix pidfd-metadata compilation	2019-06-05 15:06:07 +02:00