[PATCH] wire up fanotify and prlimit64 syscalls on ARM

Mikael Pettersson mikpe at it.uu.se
Wed Aug 25 10:56:12 EDT 2010


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 at 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



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