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See http://www.infradead.org/rpr.html X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aio@kvack.org, linux-mips@vger.kernel.org, David Howells , linux-mm@kvack.org, keyrings@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Arnd Bergmann , linux-block@vger.kernel.org, io-uring@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Jens Axboe , linux-parisc@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, David Laight , linux-fsdevel@vger.kernel.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Now that import_iovec handles compat iovecs, the native syscalls can be used for the compat case as well. Signed-off-by: Christoph Hellwig --- arch/arm64/include/asm/unistd32.h | 4 +- arch/mips/kernel/syscalls/syscall_n32.tbl | 4 +- arch/mips/kernel/syscalls/syscall_o32.tbl | 4 +- arch/parisc/kernel/syscalls/syscall.tbl | 4 +- arch/powerpc/kernel/syscalls/syscall.tbl | 4 +- arch/s390/kernel/syscalls/syscall.tbl | 4 +- arch/sparc/kernel/syscalls/syscall.tbl | 4 +- arch/x86/entry/syscall_x32.c | 2 + arch/x86/entry/syscalls/syscall_32.tbl | 4 +- arch/x86/entry/syscalls/syscall_64.tbl | 4 +- include/linux/compat.h | 8 --- include/uapi/asm-generic/unistd.h | 6 +- mm/process_vm_access.c | 69 ------------------- tools/include/uapi/asm-generic/unistd.h | 6 +- .../arch/powerpc/entry/syscalls/syscall.tbl | 4 +- .../perf/arch/s390/entry/syscalls/syscall.tbl | 4 +- .../arch/x86/entry/syscalls/syscall_64.tbl | 4 +- 17 files changed, 30 insertions(+), 109 deletions(-) diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 11dfae3a8563bd..0c280a05f699bf 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -763,9 +763,9 @@ __SYSCALL(__NR_sendmmsg, compat_sys_sendmmsg) #define __NR_setns 375 __SYSCALL(__NR_setns, sys_setns) #define __NR_process_vm_readv 376 -__SYSCALL(__NR_process_vm_readv, compat_sys_process_vm_readv) +__SYSCALL(__NR_process_vm_readv, sys_process_vm_readv) #define __NR_process_vm_writev 377 -__SYSCALL(__NR_process_vm_writev, compat_sys_process_vm_writev) +__SYSCALL(__NR_process_vm_writev, sys_process_vm_writev) #define __NR_kcmp 378 __SYSCALL(__NR_kcmp, sys_kcmp) #define __NR_finit_module 379 diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index 5a39d4de0ac85b..0bc2e0fcf1ee56 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -317,8 +317,8 @@ 306 n32 syncfs sys_syncfs 307 n32 sendmmsg compat_sys_sendmmsg 308 n32 setns sys_setns -309 n32 process_vm_readv compat_sys_process_vm_readv -310 n32 process_vm_writev compat_sys_process_vm_writev +309 n32 process_vm_readv sys_process_vm_readv +310 n32 process_vm_writev sys_process_vm_writev 311 n32 kcmp sys_kcmp 312 n32 finit_module sys_finit_module 313 n32 sched_setattr sys_sched_setattr diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 136efc6b8c5444..b408c13b934296 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -356,8 +356,8 @@ 342 o32 syncfs sys_syncfs 343 o32 sendmmsg sys_sendmmsg compat_sys_sendmmsg 344 o32 setns sys_setns -345 o32 process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -346 o32 process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +345 o32 process_vm_readv sys_process_vm_readv +346 o32 process_vm_writev sys_process_vm_writev 347 o32 kcmp sys_kcmp 348 o32 finit_module sys_finit_module 349 o32 sched_setattr sys_sched_setattr diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index a9e184192caedd..2015a5124b78ad 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -372,8 +372,8 @@ 327 common syncfs sys_syncfs 328 common setns sys_setns 329 common sendmmsg sys_sendmmsg compat_sys_sendmmsg -330 common process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -331 common process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +330 common process_vm_readv sys_process_vm_readv +331 common process_vm_writev sys_process_vm_writev 332 common kcmp sys_kcmp 333 common finit_module sys_finit_module 334 common sched_setattr sys_sched_setattr diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index 0d4985919ca34d..66a472aa635d3f 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -449,8 +449,8 @@ 348 common syncfs sys_syncfs 349 common sendmmsg sys_sendmmsg compat_sys_sendmmsg 350 common setns sys_setns -351 nospu process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -352 nospu process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +351 nospu process_vm_readv sys_process_vm_readv +352 nospu process_vm_writev sys_process_vm_writev 353 nospu finit_module sys_finit_module 354 nospu kcmp sys_kcmp 355 common sched_setattr sys_sched_setattr diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index b5495a42814bd1..7485867a490bb2 100644 --- a/arch/s390/kernel/syscalls/syscall.tbl +++ b/arch/s390/kernel/syscalls/syscall.tbl @@ -347,8 +347,8 @@ 337 common clock_adjtime sys_clock_adjtime sys_clock_adjtime32 338 common syncfs sys_syncfs sys_syncfs 339 common setns sys_setns sys_setns -340 common process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -341 common process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +340 common process_vm_readv sys_process_vm_readv sys_process_vm_readv +341 common process_vm_writev sys_process_vm_writev sys_process_vm_writev 342 common s390_runtime_instr sys_s390_runtime_instr sys_s390_runtime_instr 343 common kcmp sys_kcmp sys_kcmp 344 common finit_module sys_finit_module sys_finit_module diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index f1810c1a35caa5..4a9365b2e340b2 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -406,8 +406,8 @@ 335 common syncfs sys_syncfs 336 common sendmmsg sys_sendmmsg compat_sys_sendmmsg 337 common setns sys_setns -338 common process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -339 common process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +338 common process_vm_readv sys_process_vm_readv +339 common process_vm_writev sys_process_vm_writev 340 32 kern_features sys_ni_syscall sys_kern_features 340 64 kern_features sys_kern_features 341 common kcmp sys_kcmp diff --git a/arch/x86/entry/syscall_x32.c b/arch/x86/entry/syscall_x32.c index a4840b9d50ad14..f2fe0a33bcfdd5 100644 --- a/arch/x86/entry/syscall_x32.c +++ b/arch/x86/entry/syscall_x32.c @@ -17,6 +17,8 @@ #define __x32_sys_getsockopt __x64_sys_getsockopt #define __x32_sys_setsockopt __x64_sys_setsockopt #define __x32_sys_vmsplice __x64_sys_vmsplice +#define __x32_sys_process_vm_readv __x64_sys_process_vm_readv +#define __x32_sys_process_vm_writev __x64_sys_process_vm_writev #define __SYSCALL_64(nr, sym) diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 0fb2f172581e51..5fbe10ad8a23fc 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -358,8 +358,8 @@ 344 i386 syncfs sys_syncfs 345 i386 sendmmsg sys_sendmmsg compat_sys_sendmmsg 346 i386 setns sys_setns -347 i386 process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -348 i386 process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +347 i386 process_vm_readv sys_process_vm_readv +348 i386 process_vm_writev sys_process_vm_writev 349 i386 kcmp sys_kcmp 350 i386 finit_module sys_finit_module 351 i386 sched_setattr sys_sched_setattr diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index 642af919183de4..347809649ba28f 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -395,8 +395,8 @@ 536 x32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo 537 x32 recvmmsg compat_sys_recvmmsg_time64 538 x32 sendmmsg compat_sys_sendmmsg -539 x32 process_vm_readv compat_sys_process_vm_readv -540 x32 process_vm_writev compat_sys_process_vm_writev +539 x32 process_vm_readv sys_process_vm_readv +540 x32 process_vm_writev sys_process_vm_writev 541 x32 setsockopt sys_setsockopt 542 x32 getsockopt sys_getsockopt 543 x32 io_setup compat_sys_io_setup diff --git a/include/linux/compat.h b/include/linux/compat.h index 14d8bf412bd02e..d46e5905970817 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -780,14 +780,6 @@ asmlinkage long compat_sys_open_by_handle_at(int mountdirfd, int flags); asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg, unsigned vlen, unsigned int flags); -asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid, - const struct compat_iovec __user *lvec, - compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, - compat_ulong_t riovcnt, compat_ulong_t flags); -asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid, - const struct compat_iovec __user *lvec, - compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, - compat_ulong_t riovcnt, compat_ulong_t flags); asmlinkage long compat_sys_execveat(int dfd, const char __user *filename, const compat_uptr_t __user *argv, const compat_uptr_t __user *envp, int flags); diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index f2dcb0d5703014..c1dfe99c9c3f70 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -727,11 +727,9 @@ __SYSCALL(__NR_setns, sys_setns) #define __NR_sendmmsg 269 __SC_COMP(__NR_sendmmsg, sys_sendmmsg, compat_sys_sendmmsg) #define __NR_process_vm_readv 270 -__SC_COMP(__NR_process_vm_readv, sys_process_vm_readv, \ - compat_sys_process_vm_readv) +__SYSCALL(__NR_process_vm_readv, sys_process_vm_readv) #define __NR_process_vm_writev 271 -__SC_COMP(__NR_process_vm_writev, sys_process_vm_writev, \ - compat_sys_process_vm_writev) +__SYSCALL(__NR_process_vm_writev, sys_process_vm_writev) #define __NR_kcmp 272 __SYSCALL(__NR_kcmp, sys_kcmp) #define __NR_finit_module 273 diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c index 3f2156aab44263..fd12da80b6f27b 100644 --- a/mm/process_vm_access.c +++ b/mm/process_vm_access.c @@ -14,10 +14,6 @@ #include #include -#ifdef CONFIG_COMPAT -#include -#endif - /** * process_vm_rw_pages - read/write pages from task specified * @pages: array of pointers to pages we want to copy @@ -304,68 +300,3 @@ SYSCALL_DEFINE6(process_vm_writev, pid_t, pid, { return process_vm_rw(pid, lvec, liovcnt, rvec, riovcnt, flags, 1); } - -#ifdef CONFIG_COMPAT - -static ssize_t -compat_process_vm_rw(compat_pid_t pid, - const struct compat_iovec __user *lvec, - unsigned long liovcnt, - const struct compat_iovec __user *rvec, - unsigned long riovcnt, - unsigned long flags, int vm_write) -{ - struct iovec iovstack_l[UIO_FASTIOV]; - struct iovec iovstack_r[UIO_FASTIOV]; - struct iovec *iov_l = iovstack_l; - struct iovec *iov_r = iovstack_r; - struct iov_iter iter; - ssize_t rc = -EFAULT; - int dir = vm_write ? WRITE : READ; - - if (flags != 0) - return -EINVAL; - - rc = import_iovec(dir, (const struct iovec __user *)lvec, liovcnt, - UIO_FASTIOV, &iov_l, &iter); - if (rc < 0) - return rc; - if (!iov_iter_count(&iter)) - goto free_iov_l; - iov_r = iovec_from_user((const struct iovec __user *)rvec, riovcnt, - UIO_FASTIOV, iovstack_r, true); - if (IS_ERR(iov_r)) { - rc = PTR_ERR(iov_r); - goto free_iov_l; - } - rc = process_vm_rw_core(pid, &iter, iov_r, riovcnt, flags, vm_write); - if (iov_r != iovstack_r) - kfree(iov_r); -free_iov_l: - kfree(iov_l); - return rc; -} - -COMPAT_SYSCALL_DEFINE6(process_vm_readv, compat_pid_t, pid, - const struct compat_iovec __user *, lvec, - compat_ulong_t, liovcnt, - const struct compat_iovec __user *, rvec, - compat_ulong_t, riovcnt, - compat_ulong_t, flags) -{ - return compat_process_vm_rw(pid, lvec, liovcnt, rvec, - riovcnt, flags, 0); -} - -COMPAT_SYSCALL_DEFINE6(process_vm_writev, compat_pid_t, pid, - const struct compat_iovec __user *, lvec, - compat_ulong_t, liovcnt, - const struct compat_iovec __user *, rvec, - compat_ulong_t, riovcnt, - compat_ulong_t, flags) -{ - return compat_process_vm_rw(pid, lvec, liovcnt, rvec, - riovcnt, flags, 1); -} - -#endif diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h index f2dcb0d5703014..c1dfe99c9c3f70 100644 --- a/tools/include/uapi/asm-generic/unistd.h +++ b/tools/include/uapi/asm-generic/unistd.h @@ -727,11 +727,9 @@ __SYSCALL(__NR_setns, sys_setns) #define __NR_sendmmsg 269 __SC_COMP(__NR_sendmmsg, sys_sendmmsg, compat_sys_sendmmsg) #define __NR_process_vm_readv 270 -__SC_COMP(__NR_process_vm_readv, sys_process_vm_readv, \ - compat_sys_process_vm_readv) +__SYSCALL(__NR_process_vm_readv, sys_process_vm_readv) #define __NR_process_vm_writev 271 -__SC_COMP(__NR_process_vm_writev, sys_process_vm_writev, \ - compat_sys_process_vm_writev) +__SYSCALL(__NR_process_vm_writev, sys_process_vm_writev) #define __NR_kcmp 272 __SYSCALL(__NR_kcmp, sys_kcmp) #define __NR_finit_module 273 diff --git a/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl b/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl index 26f0347c15118b..a188f053cbf90a 100644 --- a/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl +++ b/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl @@ -443,8 +443,8 @@ 348 common syncfs sys_syncfs 349 common sendmmsg sys_sendmmsg compat_sys_sendmmsg 350 common setns sys_setns -351 nospu process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -352 nospu process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +351 nospu process_vm_readv sys_process_vm_readv +352 nospu process_vm_writev sys_process_vm_writev 353 nospu finit_module sys_finit_module 354 nospu kcmp sys_kcmp 355 common sched_setattr sys_sched_setattr diff --git a/tools/perf/arch/s390/entry/syscalls/syscall.tbl b/tools/perf/arch/s390/entry/syscalls/syscall.tbl index 02ad81f69bb7e3..c44c83032c3a04 100644 --- a/tools/perf/arch/s390/entry/syscalls/syscall.tbl +++ b/tools/perf/arch/s390/entry/syscalls/syscall.tbl @@ -347,8 +347,8 @@ 337 common clock_adjtime sys_clock_adjtime compat_sys_clock_adjtime 338 common syncfs sys_syncfs sys_syncfs 339 common setns sys_setns sys_setns -340 common process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv -341 common process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +340 common process_vm_readv sys_process_vm_readv sys_process_vm_readv +341 common process_vm_writev sys_process_vm_writev sys_process_vm_writev 342 common s390_runtime_instr sys_s390_runtime_instr sys_s390_runtime_instr 343 common kcmp sys_kcmp compat_sys_kcmp 344 common finit_module sys_finit_module compat_sys_finit_module diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl index 642af919183de4..347809649ba28f 100644 --- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl +++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl @@ -395,8 +395,8 @@ 536 x32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo 537 x32 recvmmsg compat_sys_recvmmsg_time64 538 x32 sendmmsg compat_sys_sendmmsg -539 x32 process_vm_readv compat_sys_process_vm_readv -540 x32 process_vm_writev compat_sys_process_vm_writev +539 x32 process_vm_readv sys_process_vm_readv +540 x32 process_vm_writev sys_process_vm_writev 541 x32 setsockopt sys_setsockopt 542 x32 getsockopt sys_getsockopt 543 x32 io_setup compat_sys_io_setup -- 2.28.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel