* [PATCH] wire up fanotify and prlimit64 syscalls on ARM
@ 2010-08-25 14:56 Mikael Pettersson
2010-08-25 15:08 ` Gadiyar, Anand
2010-08-25 19:07 ` Russell King - ARM Linux
0 siblings, 2 replies; 3+ messages in thread
From: Mikael Pettersson @ 2010-08-25 14:56 UTC (permalink / raw)
To: linux-arm-kernel
The 2.6.36-rc kernel added three new system calls:
fanotify_init, fanotify_mark, and prlimit64. This patch
wires them up on ARM.
The only non-trivial issue here is the u64 argument to
sys_fanotify_mark(), but it is the 3rd argument and thus
passed in r2/r3 in both kernel and user space, so it causes
no problems.
Tested with a 2.6.36-rc2 EABI kernel on an ixp4xx machine.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
---
arch/arm/include/asm/unistd.h | 3 +++
arch/arm/kernel/calls.S | 3 +++
2 files changed, 6 insertions(+)
diff -rupN linux-2.6.36-rc2/arch/arm/include/asm/unistd.h linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/include/asm/unistd.h
--- linux-2.6.36-rc2/arch/arm/include/asm/unistd.h 2010-08-24 12:03:48.000000000 +0200
+++ linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/include/asm/unistd.h 2010-08-25 16:27:22.000000000 +0200
@@ -393,6 +393,9 @@
#define __NR_perf_event_open (__NR_SYSCALL_BASE+364)
#define __NR_recvmmsg (__NR_SYSCALL_BASE+365)
#define __NR_accept4 (__NR_SYSCALL_BASE+366)
+#define __NR_fanotify_init (__NR_SYSCALL_BASE+367)
+#define __NR_fanotify_mark (__NR_SYSCALL_BASE+368)
+#define __NR_prlimit64 (__NR_SYSCALL_BASE+369)
/*
* The following SWIs are ARM private.
diff -rupN linux-2.6.36-rc2/arch/arm/kernel/calls.S linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/kernel/calls.S
--- linux-2.6.36-rc2/arch/arm/kernel/calls.S 2010-08-24 12:03:48.000000000 +0200
+++ linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/kernel/calls.S 2010-08-25 16:27:22.000000000 +0200
@@ -376,6 +376,9 @@
CALL(sys_perf_event_open)
/* 365 */ CALL(sys_recvmmsg)
CALL(sys_accept4)
+ CALL(sys_fanotify_init)
+ CALL(sys_fanotify_mark)
+ CALL(sys_prlimit64)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] wire up fanotify and prlimit64 syscalls on ARM
2010-08-25 14:56 [PATCH] wire up fanotify and prlimit64 syscalls on ARM Mikael Pettersson
@ 2010-08-25 15:08 ` Gadiyar, Anand
2010-08-25 19:07 ` Russell King - ARM Linux
1 sibling, 0 replies; 3+ messages in thread
From: Gadiyar, Anand @ 2010-08-25 15:08 UTC (permalink / raw)
To: linux-arm-kernel
Mikael Pettersson wrote:
>
> The 2.6.36-rc kernel added three new system calls:
> fanotify_init, fanotify_mark, and prlimit64. This patch
> wires them up on ARM.
>
> The only non-trivial issue here is the u64 argument to
> sys_fanotify_mark(), but it is the 3rd argument and thus
> passed in r2/r3 in both kernel and user space, so it causes
> no problems.
>
> Tested with a 2.6.36-rc2 EABI kernel on an ixp4xx machine.
>
> Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
For what it's worth,
Tested-by: Anand Gadiyar <gadiyar@ti.com>
on an OMAP4
> ---
> arch/arm/include/asm/unistd.h | 3 +++
> arch/arm/kernel/calls.S | 3 +++
> 2 files changed, 6 insertions(+)
>
> diff -rupN linux-2.6.36-rc2/arch/arm/include/asm/unistd.h
> linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/include/asm/unistd.h
> --- linux-2.6.36-rc2/arch/arm/include/asm/unistd.h 2010-08-24 12:03:48.000000000 +0200
> +++ linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/include/asm/unistd.h 2010-08-25 16:27:22.000000000 +0200
> @@ -393,6 +393,9 @@
> #define __NR_perf_event_open (__NR_SYSCALL_BASE+364)
> #define __NR_recvmmsg (__NR_SYSCALL_BASE+365)
> #define __NR_accept4 (__NR_SYSCALL_BASE+366)
> +#define __NR_fanotify_init (__NR_SYSCALL_BASE+367)
> +#define __NR_fanotify_mark (__NR_SYSCALL_BASE+368)
> +#define __NR_prlimit64 (__NR_SYSCALL_BASE+369)
>
> /*
> * The following SWIs are ARM private.
> diff -rupN linux-2.6.36-rc2/arch/arm/kernel/calls.S linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/kernel/calls.S
> --- linux-2.6.36-rc2/arch/arm/kernel/calls.S 2010-08-24 12:03:48.000000000 +0200
> +++ linux-2.6.36-rc2.arm-fanotify+prlimit64-syscalls/arch/arm/kernel/calls.S 2010-08-25 16:27:22.000000000 +0200
> @@ -376,6 +376,9 @@
> CALL(sys_perf_event_open)
> /* 365 */ CALL(sys_recvmmsg)
> CALL(sys_accept4)
> + CALL(sys_fanotify_init)
> + CALL(sys_fanotify_mark)
> + CALL(sys_prlimit64)
> #ifndef syscalls_counted
> .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
> #define syscalls_counted
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] wire up fanotify and prlimit64 syscalls on ARM
2010-08-25 14:56 [PATCH] wire up fanotify and prlimit64 syscalls on ARM Mikael Pettersson
2010-08-25 15:08 ` Gadiyar, Anand
@ 2010-08-25 19:07 ` Russell King - ARM Linux
1 sibling, 0 replies; 3+ messages in thread
From: Russell King - ARM Linux @ 2010-08-25 19:07 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Aug 25, 2010 at 04:56:12PM +0200, Mikael Pettersson wrote:
> The 2.6.36-rc kernel added three new system calls:
> fanotify_init, fanotify_mark, and prlimit64. This patch
> wires them up on ARM.
>
> The only non-trivial issue here is the u64 argument to
> sys_fanotify_mark(), but it is the 3rd argument and thus
> passed in r2/r3 in both kernel and user space, so it causes
> no problems.
>
> Tested with a 2.6.36-rc2 EABI kernel on an ixp4xx machine.
Looks fine, please submit to the patch system with Anand's tested-by.
Thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-08-25 14:56 [PATCH] wire up fanotify and prlimit64 syscalls on ARM Mikael Pettersson
2010-08-25 15:08 ` Gadiyar, Anand
2010-08-25 19:07 ` Russell King - ARM Linux
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