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Message-Id: <447c01092adfc8a8c61f6ee0723024220ef52dda.1469489884.git.gamvrosi@gmail.com> Date: Mon, 25 Jul 2016 23:47:20 -0400 (EDT) From: George Amvrosiadis <gamvrosi@...il.com> To: Andrew Morton <akpm@...ux-foundation.org>, Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-mm@...ck.org Cc: George Amvrosiadis <gamvrosi@...il.com> Subject: [PATCH 2/3] mm/duet: syscall wiring Usual syscall wiring for the four Duet syscalls. Signed-off-by: George Amvrosiadis <gamvrosi@...il.com> --- arch/x86/entry/syscalls/syscall_32.tbl | 4 ++++ arch/x86/entry/syscalls/syscall_64.tbl | 4 ++++ include/linux/syscalls.h | 8 ++++++++ include/uapi/asm-generic/unistd.h | 12 +++++++++++- kernel/sys_ni.c | 6 ++++++ 5 files changed, 33 insertions(+), 1 deletion(-) diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 4cddd17..f34ff94 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -386,3 +386,7 @@ 377 i386 copy_file_range sys_copy_file_range 378 i386 preadv2 sys_preadv2 compat_sys_preadv2 379 i386 pwritev2 sys_pwritev2 compat_sys_pwritev2 +380 i386 duet_status sys_duet_status +381 i386 duet_init sys_duet_init +382 i386 duet_bmap sys_duet_bmap +383 i386 duet_get_path sys_duet_get_path diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index 555263e..d04efaa 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -335,6 +335,10 @@ 326 common copy_file_range sys_copy_file_range 327 64 preadv2 sys_preadv2 328 64 pwritev2 sys_pwritev2 +329 common duet_status sys_duet_status +330 common duet_init sys_duet_init +331 common duet_bmap sys_duet_bmap +332 common duet_get_path sys_duet_get_path # # x32-specific system call numbers start at 512 to avoid cache impact diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index d022390..da1049e 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -65,6 +65,8 @@ struct old_linux_dirent; struct perf_event_attr; struct file_handle; struct sigaltstack; +struct duet_status_args; +struct duet_uuid_arg; union bpf_attr; #include <linux/types.h> @@ -898,4 +900,10 @@ asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); +asmlinkage long sys_duet_status(u16 flags, struct duet_status_args __user *arg); +asmlinkage long sys_duet_init(const char __user *taskname, u32 regmask, + const char __user *pathname); +asmlinkage long sys_duet_bmap(u16 flags, struct duet_uuid_arg __user *arg); +asmlinkage long sys_duet_get_path(struct duet_uuid_arg __user *uarg, + char __user *pathbuf, int pathbufsize); #endif diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index a26415b..7c287c0 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -725,8 +725,18 @@ __SC_COMP(__NR_preadv2, sys_preadv2, compat_sys_preadv2) #define __NR_pwritev2 287 __SC_COMP(__NR_pwritev2, sys_pwritev2, compat_sys_pwritev2) +/* mm/duet/syscall.c */ +#define __NR_duet_status 288 +__SYSCALL(__NR_duet_status, sys_duet_status) +#define __NR_duet_init 289 +__SYSCALL(__NR_duet_init, sys_duet_init) +#define __NR_duet_bmap 290 +__SYSCALL(__NR_duet_bmap, sys_duet_bmap) +#define __NR_duet_get_path 291 +__SYSCALL(__NR_duet_get_path, sys_duet_get_path) + #undef __NR_syscalls -#define __NR_syscalls 288 +#define __NR_syscalls 292 /* * All syscalls below here should go away really, diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 2c5e3a8..3d4c53a 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -176,6 +176,12 @@ cond_syscall(sys_capget); cond_syscall(sys_capset); cond_syscall(sys_copy_file_range); +/* Duet syscall entries */ +cond_syscall(sys_duet_status); +cond_syscall(sys_duet_init); +cond_syscall(sys_duet_bmap); +cond_syscall(sys_duet_get_path); + /* arch-specific weak syscall entries */ cond_syscall(sys_pciconfig_read); cond_syscall(sys_pciconfig_write); -- 2.7.4
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