[v2,14/29] arch: add pkey and rseq syscall numbers everywhere
diff mbox series

Message ID 20190118161835.2259170-15-arnd@arndb.de
State New
Headers show
Series
  • y2038: add time64 syscalls
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Commit Message

Arnd Bergmann Jan. 18, 2019, 4:18 p.m. UTC
Most architectures define system call numbers for the rseq and pkey system
calls, even when they don't support the features, and perhaps never will.

Only a few architectures are missing these, so just define them anyway
for consistency. If we decide to add them later to one of these, the
system call numbers won't get out of sync then.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/alpha/include/asm/unistd.h         | 4 ----
 arch/alpha/kernel/syscalls/syscall.tbl  | 4 ++++
 arch/ia64/kernel/syscalls/syscall.tbl   | 4 ++++
 arch/m68k/kernel/syscalls/syscall.tbl   | 4 ++++
 arch/parisc/include/asm/unistd.h        | 3 ---
 arch/parisc/kernel/syscalls/syscall.tbl | 4 ++++
 arch/s390/include/asm/unistd.h          | 3 ---
 arch/s390/kernel/syscalls/syscall.tbl   | 3 +++
 arch/sh/kernel/syscalls/syscall.tbl     | 4 ++++
 arch/sparc/include/asm/unistd.h         | 5 -----
 arch/sparc/kernel/syscalls/syscall.tbl  | 4 ++++
 arch/xtensa/kernel/syscalls/syscall.tbl | 1 +
 12 files changed, 28 insertions(+), 15 deletions(-)

Comments

Geert Uytterhoeven Jan. 21, 2019, 8:55 a.m. UTC | #1
On Fri, Jan 18, 2019 at 5:20 PM Arnd Bergmann <arnd@arndb.de> wrote:
> Most architectures define system call numbers for the rseq and pkey system
> calls, even when they don't support the features, and perhaps never will.
>
> Only a few architectures are missing these, so just define them anyway
> for consistency. If we decide to add them later to one of these, the
> system call numbers won't get out of sync then.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

>  arch/m68k/kernel/syscalls/syscall.tbl   | 4 ++++

> --- a/arch/m68k/kernel/syscalls/syscall.tbl
> +++ b/arch/m68k/kernel/syscalls/syscall.tbl
> @@ -388,6 +388,10 @@
>  378    common  pwritev2                        sys_pwritev2
>  379    common  statx                           sys_statx
>  380    common  seccomp                         sys_seccomp
> +381    common  pkey_alloc                      sys_pkey_alloc
> +382    common  pkey_free                       sys_pkey_free
> +383    common  pkey_mprotect                   sys_pkey_mprotect
> +384    common  rseq                            sys_rseq

Note that all architectures that already define pkey syscalls, list
pkey_mprotect
first.

Regardless, for m68k:
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

>  # room for arch specific calls
>  393    common  semget                          sys_semget
>  394    common  semctl                          sys_semctl

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
Heiko Carstens Jan. 21, 2019, 11:59 a.m. UTC | #2
On Fri, Jan 18, 2019 at 05:18:20PM +0100, Arnd Bergmann wrote:
> Most architectures define system call numbers for the rseq and pkey system
> calls, even when they don't support the features, and perhaps never will.
> 
> Only a few architectures are missing these, so just define them anyway
> for consistency. If we decide to add them later to one of these, the
> system call numbers won't get out of sync then.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/alpha/include/asm/unistd.h         | 4 ----
>  arch/alpha/kernel/syscalls/syscall.tbl  | 4 ++++
>  arch/ia64/kernel/syscalls/syscall.tbl   | 4 ++++
>  arch/m68k/kernel/syscalls/syscall.tbl   | 4 ++++
>  arch/parisc/include/asm/unistd.h        | 3 ---
>  arch/parisc/kernel/syscalls/syscall.tbl | 4 ++++
>  arch/s390/include/asm/unistd.h          | 3 ---
>  arch/s390/kernel/syscalls/syscall.tbl   | 3 +++
>  arch/sh/kernel/syscalls/syscall.tbl     | 4 ++++
>  arch/sparc/include/asm/unistd.h         | 5 -----
>  arch/sparc/kernel/syscalls/syscall.tbl  | 4 ++++
>  arch/xtensa/kernel/syscalls/syscall.tbl | 1 +
>  12 files changed, 28 insertions(+), 15 deletions(-)

For the s390 bits:
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Arnd Bergmann Jan. 21, 2019, 8:28 p.m. UTC | #3
On Mon, Jan 21, 2019 at 9:56 AM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Note that all architectures that already define pkey syscalls, list
> pkey_mprotect first.

It's easy enough to change, so I've reordered them for consistency now.

> Regardless, for m68k:
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Thanks,

     Arnd

Patch
diff mbox series

diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index 564ba87bdc38..31ad350b58a0 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -29,9 +29,5 @@ 
 #define __IGNORE_getppid
 #define __IGNORE_getuid
 
-/* Alpha doesn't have protection keys. */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
 
 #endif /* _ALPHA_UNISTD_H */
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index b0e247287908..25b4a7e76943 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -452,3 +452,7 @@ 
 521	common	pwritev2			sys_pwritev2
 522	common	statx				sys_statx
 523	common	io_pgetevents			sys_io_pgetevents
+524	common	pkey_alloc			sys_pkey_alloc
+525	common	pkey_free			sys_pkey_free
+526	common	pkey_mprotect			sys_pkey_mprotect
+527	common	rseq				sys_rseq
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
index 2e93dbdcdb80..84e03de00177 100644
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@@ -339,3 +339,7 @@ 
 327	common	io_pgetevents			sys_io_pgetevents
 328	common	perf_event_open			sys_perf_event_open
 329	common	seccomp				sys_seccomp
+330	common	pkey_alloc			sys_pkey_alloc
+331	common	pkey_free			sys_pkey_free
+332	common	pkey_mprotect			sys_pkey_mprotect
+333	common	rseq				sys_rseq
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index 5354ba02eed2..ae88b85d068e 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -388,6 +388,10 @@ 
 378	common	pwritev2			sys_pwritev2
 379	common	statx				sys_statx
 380	common	seccomp				sys_seccomp
+381	common	pkey_alloc			sys_pkey_alloc
+382	common	pkey_free			sys_pkey_free
+383	common	pkey_mprotect			sys_pkey_mprotect
+384	common	rseq				sys_rseq
 # room for arch specific calls
 393	common	semget				sys_semget
 394	common	semctl				sys_semctl
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index c2c2afb28941..9ec1026af877 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -12,9 +12,6 @@ 
 
 #define __IGNORE_select			/* newselect */
 #define __IGNORE_fadvise64		/* fadvise64_64 */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
 
 #ifndef ASM_LINE_SEP
 # define ASM_LINE_SEP ;
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 9bbd2f9f56c8..e07231de3597 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -367,3 +367,7 @@ 
 348	common	pwritev2		sys_pwritev2			compat_sys_pwritev2
 349	common	statx			sys_statx
 350	common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
+351	common	pkey_alloc		sys_pkey_alloc
+352	common	pkey_free		sys_pkey_free
+353	common	pkey_mprotect		sys_pkey_mprotect
+354	common	rseq			sys_rseq
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index a1fbf15d53aa..ed08f114ee91 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -11,9 +11,6 @@ 
 #include <asm/unistd_nr.h>
 
 #define __IGNORE_time
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
 
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 0bccb01c6202..14142eb21f8f 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -391,6 +391,9 @@ 
 381  common	kexec_file_load		sys_kexec_file_load		sys_kexec_file_load
 382  common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
 383  common	rseq			sys_rseq			sys_rseq
+384  common	pkey_alloc		sys_pkey_alloc			sys_pkey_alloc
+385  common	pkey_free		sys_pkey_free			sys_pkey_free
+386  common	pkey_mprotect		sys_pkey_mprotect		sys_pkey_mprotect
 # room for arch specific syscalls
 392	64	semtimedop		sys_semtimedop			-
 393  common	semget			sys_semget			sys_semget
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index 6d0b84e3ef2d..3f96ad0424e1 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -391,6 +391,10 @@ 
 381	common	preadv2				sys_preadv2
 382	common	pwritev2			sys_pwritev2
 383	common	statx				sys_statx
+384	common	pkey_alloc			sys_pkey_alloc
+385	common	pkey_free			sys_pkey_free
+386	common	pkey_mprotect			sys_pkey_mprotect
+387	common	rseq				sys_rseq
 # room for arch specific syscalls
 393	common	semget				sys_semget
 394	common	semctl				sys_semctl
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index 5194d86ef72d..08696ea5dca8 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -59,9 +59,4 @@ 
 #define __IGNORE_getresgid
 #endif
 
-/* Sparc doesn't have protection keys. */
-#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
-
 #endif /* _SPARC_UNISTD_H */
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 8c9580302422..24ebef675184 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -407,6 +407,10 @@ 
 359	common	pwritev2		sys_pwritev2			compat_sys_pwritev2
 360	common	statx			sys_statx
 361	common	io_pgetevents		sys_io_pgetevents		compat_sys_io_pgetevents
+362	common	pkey_alloc		sys_pkey_alloc
+363	common	pkey_free		sys_pkey_free
+364	common	pkey_mprotect		sys_pkey_mprotect
+365	common	rseq			sys_rseq
 # room for arch specific syscalls
 392	64	semtimedop			sys_semtimedop
 393	common	semget			sys_semget
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index f8befa11b0c4..c699e014e0dd 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -372,3 +372,4 @@ 
 349	common	pkey_alloc			sys_pkey_alloc
 350	common	pkey_free			sys_pkey_free
 351	common	statx				sys_statx
+352	common	rseq				sys_rseq