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Mon, 19 Jun 2017 15:50:57 +0000 From: Yury Norov To: Catalin Marinas , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH 03/20] asm-generic: Drop getrlimit and setrlimit syscalls from default list Date: Mon, 19 Jun 2017 18:49:46 +0300 Message-Id: <20170619155003.13218-4-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170619155003.13218-1-ynorov@caviumnetworks.com> References: <20170619155003.13218-1-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [85.253.137.34] X-ClientProxiedBy: AM5PR0402CA0022.eurprd04.prod.outlook.com (10.175.37.32) To BLUPR0701MB1860.namprd07.prod.outlook.com (10.162.88.146) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d6b334d3-8092-4f81-9957-08d4b72afa54 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(201703131423075)(201703031133081); SRVR:BLUPR0701MB1860; X-Microsoft-Exchange-Diagnostics: 1; BLUPR0701MB1860; 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Therefore drop getrlimit and setrlimit syscalls from the generic syscall list unless __ARCH_WANT_SET_GET_RLIMIT is defined by the architecture's unistd.h prior to including asm-generic/unistd.h, and adjust all architectures using the generic syscall list to define it so that no in-tree architectures are affected. Cc: Arnd Bergmann Cc: James Hogan Cc: linux-arch@vger.kernel.org Cc: linux-snps-arc@lists.infradead.org Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: Mark Salter Cc: Aurelien Jacquiot Cc: linux-c6x-dev@linux-c6x.org Cc: Richard Kuo Cc: linux-hexagon@vger.kernel.org Cc: linux-metag@vger.kernel.org Cc: Jonas Bonn Cc: linux@lists.openrisc.net Cc: Chen Liqin Cc: Lennox Wu Cc: Chris Metcalf Cc: Guan Xuetao Cc: Ley Foon Tan Cc: nios2-dev@lists.rocketboards.org Cc: Yoshinori Sato Cc: uclinux-h8-devel@lists.sourceforge.jp Signed-off-by: Yury Norov Acked-by: Arnd Bergmann Acked-by: Mark Salter [c6x] Acked-by: James Hogan [metag] Acked-by: Ley Foon Tan [nios2] Acked-by: Stafford Horne [openrisc] Acked-by: Will Deacon [arm64] Acked-by: Vineet Gupta #arch/arc bits --- arch/arc/include/uapi/asm/unistd.h | 1 + arch/arm64/include/uapi/asm/unistd.h | 1 + arch/c6x/include/uapi/asm/unistd.h | 1 + arch/h8300/include/uapi/asm/unistd.h | 1 + arch/hexagon/include/uapi/asm/unistd.h | 1 + arch/metag/include/uapi/asm/unistd.h | 1 + arch/nios2/include/uapi/asm/unistd.h | 1 + arch/openrisc/include/uapi/asm/unistd.h | 1 + arch/score/include/uapi/asm/unistd.h | 1 + arch/tile/include/uapi/asm/unistd.h | 1 + arch/unicore32/include/uapi/asm/unistd.h | 1 + include/uapi/asm-generic/unistd.h | 5 +++++ scripts/checksyscalls.sh | 5 +++++ 13 files changed, 21 insertions(+) diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h index 9a34136d84b2..ac6496527ad6 100644 --- a/arch/arc/include/uapi/asm/unistd.h +++ b/arch/arc/include/uapi/asm/unistd.h @@ -16,6 +16,7 @@ #define _UAPI_ASM_ARC_UNISTD_H #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYS_EXECVE #define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SYS_VFORK diff --git a/arch/arm64/include/uapi/asm/unistd.h b/arch/arm64/include/uapi/asm/unistd.h index 043d17a21342..48355a683e25 100644 --- a/arch/arm64/include/uapi/asm/unistd.h +++ b/arch/arm64/include/uapi/asm/unistd.h @@ -15,5 +15,6 @@ */ #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #include diff --git a/arch/c6x/include/uapi/asm/unistd.h b/arch/c6x/include/uapi/asm/unistd.h index 12d73d9d81f5..f67623137853 100644 --- a/arch/c6x/include/uapi/asm/unistd.h +++ b/arch/c6x/include/uapi/asm/unistd.h @@ -15,6 +15,7 @@ */ #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYS_CLONE /* Use the standard ABI for syscalls. */ diff --git a/arch/h8300/include/uapi/asm/unistd.h b/arch/h8300/include/uapi/asm/unistd.h index 7dd20ef7625a..2f98394b77d4 100644 --- a/arch/h8300/include/uapi/asm/unistd.h +++ b/arch/h8300/include/uapi/asm/unistd.h @@ -1,5 +1,6 @@ #define __ARCH_NOMMU #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #include diff --git a/arch/hexagon/include/uapi/asm/unistd.h b/arch/hexagon/include/uapi/asm/unistd.h index 21517600432b..52d585c5cdb2 100644 --- a/arch/hexagon/include/uapi/asm/unistd.h +++ b/arch/hexagon/include/uapi/asm/unistd.h @@ -28,6 +28,7 @@ #define sys_mmap2 sys_mmap_pgoff #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYS_EXECVE #define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SYS_VFORK diff --git a/arch/metag/include/uapi/asm/unistd.h b/arch/metag/include/uapi/asm/unistd.h index 459b6ec15848..16b5cb32ec21 100644 --- a/arch/metag/include/uapi/asm/unistd.h +++ b/arch/metag/include/uapi/asm/unistd.h @@ -8,6 +8,7 @@ */ #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT /* Use the standard ABI for syscalls. */ #include diff --git a/arch/nios2/include/uapi/asm/unistd.h b/arch/nios2/include/uapi/asm/unistd.h index 51a32c71ce2b..b0dda4de2bc7 100644 --- a/arch/nios2/include/uapi/asm/unistd.h +++ b/arch/nios2/include/uapi/asm/unistd.h @@ -18,6 +18,7 @@ #define sys_mmap2 sys_mmap_pgoff #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT /* Use the standard ABI for syscalls */ #include diff --git a/arch/openrisc/include/uapi/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h index 471905bd7745..6812d81b3c6c 100644 --- a/arch/openrisc/include/uapi/asm/unistd.h +++ b/arch/openrisc/include/uapi/asm/unistd.h @@ -21,6 +21,7 @@ #define sys_mmap2 sys_mmap_pgoff #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYS_FORK #define __ARCH_WANT_SYS_CLONE diff --git a/arch/score/include/uapi/asm/unistd.h b/arch/score/include/uapi/asm/unistd.h index d4008c339e89..7ad1bdcb8615 100644 --- a/arch/score/include/uapi/asm/unistd.h +++ b/arch/score/include/uapi/asm/unistd.h @@ -1,6 +1,7 @@ #define __ARCH_HAVE_MMU #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYSCALL_NO_AT #define __ARCH_WANT_SYSCALL_NO_FLAGS #define __ARCH_WANT_SYSCALL_OFF_T diff --git a/arch/tile/include/uapi/asm/unistd.h b/arch/tile/include/uapi/asm/unistd.h index 24e9187e85a8..cf0505fe4b9c 100644 --- a/arch/tile/include/uapi/asm/unistd.h +++ b/arch/tile/include/uapi/asm/unistd.h @@ -13,6 +13,7 @@ */ #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #if !defined(__LP64__) || defined(__SYSCALL_COMPAT) /* Use the flavor of this syscall that matches the 32-bit API better. */ #define __ARCH_WANT_SYNC_FILE_RANGE2 diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h index 9cf71c7bedb1..76ece524ab70 100644 --- a/arch/unicore32/include/uapi/asm/unistd.h +++ b/arch/unicore32/include/uapi/asm/unistd.h @@ -11,6 +11,7 @@ */ #define __ARCH_WANT_RENAMEAT +#define __ARCH_WANT_SET_GET_RLIMIT #ifndef CONFIG_UNICORE32_OLDABI diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 429dd335def6..ef90d53ac9b6 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -464,10 +464,15 @@ __SYSCALL(__NR_uname, sys_newuname) __SYSCALL(__NR_sethostname, sys_sethostname) #define __NR_setdomainname 162 __SYSCALL(__NR_setdomainname, sys_setdomainname) + +#ifdef __ARCH_WANT_SET_GET_RLIMIT +/* getrlimit and setrlimit are superseded with prlimit64 */ #define __NR_getrlimit 163 __SC_COMP(__NR_getrlimit, sys_getrlimit, compat_sys_getrlimit) #define __NR_setrlimit 164 __SC_COMP(__NR_setrlimit, sys_setrlimit, compat_sys_setrlimit) +#endif + #define __NR_getrusage 165 __SC_COMP(__NR_getrusage, sys_getrusage, compat_sys_getrusage) #define __NR_umask 166 diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh index 5a387a264201..566275e64274 100755 --- a/scripts/checksyscalls.sh +++ b/scripts/checksyscalls.sh @@ -37,6 +37,11 @@ cat << EOF #define __IGNORE_lstat64 /* fstatat64 */ #endif +#ifndef __ARCH_WANT_SET_GET_RLIMIT +#define __IGNORE_getrlimit /* getrlimit */ +#define __IGNORE_setrlimit /* setrlimit */ +#endif + /* Missing flags argument */ #define __IGNORE_renameat /* renameat2 */