Re: [PATCH 2/2] arch: add pidfd and io_uring syscalls everywhere

Hi Arnd, On Mon, Mar 25, 2019 at 03:47:37PM +0100, Arnd Bergmann wrote: > Add the io_uring and pidfd_send_signal system calls to all architectures. > > These system calls are designed to handle both native and compat tasks, > so all entries are the same across architectures, only arm-compat and

Re: [PATCH v5 3/3] locking/rwsem: Optimize down_read_trylock()

Hi, Could you share the microbenchmark you are using ? I'd like to test the series on powerpc. Thanks Christophe Le 22/03/2019 à 15:30, Waiman Long a écrit : Modify __down_read_trylock() to optimize for an unlocked rwsem and make it generate slightly better code. Before this patch,

[PATCH 2/2] arch: add pidfd and io_uring syscalls everywhere

Add the io_uring and pidfd_send_signal system calls to all architectures. These system calls are designed to handle both native and compat tasks, so all entries are the same across architectures, only arm-compat and the generic tale still use an old format. Signed-off-by: Arnd Bergmann ---