[6/9] fs: remove the compat readv/writev syscalls

Message ID	20200918124533.3487701-7-hch@lst.de
State	Superseded
Headers	show Return-Path: <SRS0=xkU+=C3=vger.kernel.org=linux-scsi-owner@kernel.org> From: Christoph Hellwig <hch@lst.de> To: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org>, Jens Axboe <axboe@kernel.dk>, Arnd Bergmann <arnd@arndb.de>, David Howells <dhowells@redhat.com>, linux-arm-kernel@lists.infradead.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, io-uring@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org Subject: [PATCH 6/9] fs: remove the compat readv/writev syscalls Date: Fri, 18 Sep 2020 14:45:30 +0200 Message-Id: <20200918124533.3487701-7-hch@lst.de> In-Reply-To: <20200918124533.3487701-1-hch@lst.de> References: <20200918124533.3487701-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	[1/9] kernel: add a PF_FORCE_COMPAT flag \| expand [1/9] kernel: add a PF_FORCE_COMPAT flag [2/9] compat.h: fix a spelling error in <linux/compat.h> [3/9] fs: explicitly check for CHECK_IOVEC_ONLY in rw_copy_check_uvector [4/9] fs: handle the compat case in import_iovec [5/9] fs: remove various compat readv/writev helpers [6/9] fs: remove the compat readv/writev syscalls [7/9] fs: remove compat_sys_vmsplice [8/9] mm: remove compat_process_vm_{readv,writev} [9/9] security/keys: remove compat_keyctl_instantiate_key_iov

diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 734860ac7cf9d5..4a236493dca5b9 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -301,9 +301,9 @@ __SYSCALL(__NR_flock, sys_flock) #define __NR_msync 144 __SYSCALL(__NR_msync, sys_msync) #define __NR_readv 145 -__SYSCALL(__NR_readv, compat_sys_readv) +__SYSCALL(__NR_readv, sys_readv) #define __NR_writev 146 -__SYSCALL(__NR_writev, compat_sys_writev) +__SYSCALL(__NR_writev, sys_writev) #define __NR_getsid 147 __SYSCALL(__NR_getsid, sys_getsid) #define __NR_fdatasync 148 diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index f9df9edb67a407..c99a92646f8ee9 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -25,8 +25,8 @@ 15 n32 ioctl compat_sys_ioctl 16 n32 pread64 sys_pread64 17 n32 pwrite64 sys_pwrite64 -18 n32 readv compat_sys_readv -19 n32 writev compat_sys_writev +18 n32 readv sys_readv +19 n32 writev sys_writev 20 n32 access sys_access 21 n32 pipe sysm_pipe 22 n32 _newselect compat_sys_select diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 195b43cf27c848..075064d10661bf 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -156,8 +156,8 @@ 142 o32 _newselect sys_select compat_sys_select 143 o32 flock sys_flock 144 o32 msync sys_msync -145 o32 readv sys_readv compat_sys_readv -146 o32 writev sys_writev compat_sys_writev +145 o32 readv sys_readv +146 o32 writev sys_writev 147 o32 cacheflush sys_cacheflush 148 o32 cachectl sys_cachectl 149 o32 sysmips __sys_sysmips diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index def64d221cd4fb..192abde0001d9d 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -159,8 +159,8 @@ 142 common _newselect sys_select compat_sys_select 143 common flock sys_flock 144 common msync sys_msync -145 common readv sys_readv compat_sys_readv -146 common writev sys_writev compat_sys_writev +145 common readv sys_readv +146 common writev sys_writev 147 common getsid sys_getsid 148 common fdatasync sys_fdatasync 149 common _sysctl sys_ni_syscall diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index c2d737ff2e7bec..6f1e2ecf0edad9 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -193,8 +193,8 @@ 142 common _newselect sys_select compat_sys_select 143 common flock sys_flock 144 common msync sys_msync -145 common readv sys_readv compat_sys_readv -146 common writev sys_writev compat_sys_writev +145 common readv sys_readv +146 common writev sys_writev 147 common getsid sys_getsid 148 common fdatasync sys_fdatasync 149 nospu _sysctl sys_ni_syscall diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index 10456bc936fb09..6101cf2e004cb4 100644 --- a/arch/s390/kernel/syscalls/syscall.tbl +++ b/arch/s390/kernel/syscalls/syscall.tbl @@ -134,8 +134,8 @@ 142 64 select sys_select - 143 common flock sys_flock sys_flock 144 common msync sys_msync sys_msync -145 common readv sys_readv compat_sys_readv -146 common writev sys_writev compat_sys_writev +145 common readv sys_readv sys_readv +146 common writev sys_writev sys_writev 147 common getsid sys_getsid sys_getsid 148 common fdatasync sys_fdatasync sys_fdatasync 149 common _sysctl - - diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index 4af114e84f2022..a87ddb282ab16f 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -149,8 +149,8 @@ 117 common getrusage sys_getrusage compat_sys_getrusage 118 common getsockopt sys_getsockopt sys_getsockopt 119 common getcwd sys_getcwd -120 common readv sys_readv compat_sys_readv -121 common writev sys_writev compat_sys_writev +120 common readv sys_readv +121 common writev sys_writev 122 common settimeofday sys_settimeofday compat_sys_settimeofday 123 32 fchown sys_fchown16 123 64 fchown sys_fchown diff --git a/arch/x86/entry/syscall_x32.c b/arch/x86/entry/syscall_x32.c index 1583831f61a9df..aa321444a41f63 100644 --- a/arch/x86/entry/syscall_x32.c +++ b/arch/x86/entry/syscall_x32.c @@ -12,6 +12,8 @@ * Reuse the 64-bit entry points for the x32 versions that occupy different * slots in the syscall table. */ +#define __x32_sys_readv __x64_sys_readv +#define __x32_sys_writev __x64_sys_writev #define __x32_sys_getsockopt __x64_sys_getsockopt #define __x32_sys_setsockopt __x64_sys_setsockopt diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 9d11028736661b..54ab4beb517f25 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -156,8 +156,8 @@ 142 i386 _newselect sys_select compat_sys_select 143 i386 flock sys_flock 144 i386 msync sys_msync -145 i386 readv sys_readv compat_sys_readv -146 i386 writev sys_writev compat_sys_writev +145 i386 readv sys_readv +146 i386 writev sys_writev 147 i386 getsid sys_getsid 148 i386 fdatasync sys_fdatasync 149 i386 _sysctl sys_ni_syscall diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index f30d6ae9a6883c..b1e59957c5c51c 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -371,8 +371,8 @@ 512 x32 rt_sigaction compat_sys_rt_sigaction 513 x32 rt_sigreturn compat_sys_x32_rt_sigreturn 514 x32 ioctl compat_sys_ioctl -515 x32 readv compat_sys_readv -516 x32 writev compat_sys_writev +515 x32 readv sys_readv +516 x32 writev sys_writev 517 x32 recvfrom compat_sys_recvfrom 518 x32 sendmsg compat_sys_sendmsg 519 x32 recvmsg compat_sys_recvmsg diff --git a/fs/read_write.c b/fs/read_write.c index 9eb63c53da78f2..560d1b0bdef7bc 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1217,13 +1217,6 @@ SYSCALL_DEFINE6(pwritev2, unsigned long, fd, const struct iovec __user *, vec, * in_compat_syscall(). */ #ifdef CONFIG_COMPAT -COMPAT_SYSCALL_DEFINE3(readv, compat_ulong_t, fd, - const struct iovec __user *, vec, - compat_ulong_t, vlen) -{ - return do_readv(fd, vec, vlen, 0); -} - #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64 COMPAT_SYSCALL_DEFINE4(preadv64, unsigned long, fd, const struct iovec __user *, vec, @@ -1265,13 +1258,6 @@ COMPAT_SYSCALL_DEFINE6(preadv2, compat_ulong_t, fd, return do_preadv(fd, vec, vlen, pos, flags); } -COMPAT_SYSCALL_DEFINE3(writev, compat_ulong_t, fd, - const struct iovec __user *, vec, - compat_ulong_t, vlen) -{ - return do_writev(fd, vec, vlen, 0); -} - #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64 COMPAT_SYSCALL_DEFINE4(pwritev64, unsigned long, fd, const struct iovec __user *, vec, diff --git a/include/linux/compat.h b/include/linux/compat.h index ad6dc56e8828d6..0ff848234df8ba 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -545,10 +545,6 @@ asmlinkage long compat_sys_getdents(unsigned int fd, /* fs/read_write.c */ asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int); -asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd, - const struct compat_iovec __user *vec, compat_ulong_t vlen); -asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd, - const struct compat_iovec __user *vec, compat_ulong_t vlen); /* No generic prototype for pread64 and pwrite64 */ asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd, const struct compat_iovec __user *vec, diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 995b36c2ea7d8a..211c9eacbda6eb 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -207,9 +207,9 @@ __SYSCALL(__NR_read, sys_read) #define __NR_write 64 __SYSCALL(__NR_write, sys_write) #define __NR_readv 65 -__SC_COMP(__NR_readv, sys_readv, compat_sys_readv) +__SC_COMP(__NR_readv, sys_readv, sys_readv) #define __NR_writev 66 -__SC_COMP(__NR_writev, sys_writev, compat_sys_writev) +__SC_COMP(__NR_writev, sys_writev, sys_writev) #define __NR_pread64 67 __SC_COMP(__NR_pread64, sys_pread64, compat_sys_pread64) #define __NR_pwrite64 68 diff --git a/tools/include/uapi/asm-generic/unistd.h b/tools/include/uapi/asm-generic/unistd.h index 995b36c2ea7d8a..211c9eacbda6eb 100644 --- a/tools/include/uapi/asm-generic/unistd.h +++ b/tools/include/uapi/asm-generic/unistd.h @@ -207,9 +207,9 @@ __SYSCALL(__NR_read, sys_read) #define __NR_write 64 __SYSCALL(__NR_write, sys_write) #define __NR_readv 65 -__SC_COMP(__NR_readv, sys_readv, compat_sys_readv) +__SC_COMP(__NR_readv, sys_readv, sys_readv) #define __NR_writev 66 -__SC_COMP(__NR_writev, sys_writev, compat_sys_writev) +__SC_COMP(__NR_writev, sys_writev, sys_writev) #define __NR_pread64 67 __SC_COMP(__NR_pread64, sys_pread64, compat_sys_pread64) #define __NR_pwrite64 68 diff --git a/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl b/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl index 3ca6fe057a0b1f..46be68029587f9 100644 --- a/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl +++ b/tools/perf/arch/powerpc/entry/syscalls/syscall.tbl @@ -189,8 +189,8 @@ 142 common _newselect sys_select compat_sys_select 143 common flock sys_flock 144 common msync sys_msync -145 common readv sys_readv compat_sys_readv -146 common writev sys_writev compat_sys_writev +145 common readv sys_readv +146 common writev sys_writev 147 common getsid sys_getsid 148 common fdatasync sys_fdatasync 149 nospu _sysctl sys_ni_syscall diff --git a/tools/perf/arch/s390/entry/syscalls/syscall.tbl b/tools/perf/arch/s390/entry/syscalls/syscall.tbl index 6a0bbea225db0d..fb5e61ce9d5838 100644 --- a/tools/perf/arch/s390/entry/syscalls/syscall.tbl +++ b/tools/perf/arch/s390/entry/syscalls/syscall.tbl @@ -134,8 +134,8 @@ 142 64 select sys_select - 143 common flock sys_flock sys_flock 144 common msync sys_msync compat_sys_msync -145 common readv sys_readv compat_sys_readv -146 common writev sys_writev compat_sys_writev +145 common readv sys_readv +146 common writev sys_writev 147 common getsid sys_getsid sys_getsid 148 common fdatasync sys_fdatasync sys_fdatasync 149 common _sysctl - - diff --git a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl index f30d6ae9a6883c..b1e59957c5c51c 100644 --- a/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl +++ b/tools/perf/arch/x86/entry/syscalls/syscall_64.tbl @@ -371,8 +371,8 @@ 512 x32 rt_sigaction compat_sys_rt_sigaction 513 x32 rt_sigreturn compat_sys_x32_rt_sigreturn 514 x32 ioctl compat_sys_ioctl -515 x32 readv compat_sys_readv -516 x32 writev compat_sys_writev +515 x32 readv sys_readv +516 x32 writev sys_writev 517 x32 recvfrom compat_sys_recvfrom 518 x32 sendmsg compat_sys_sendmsg 519 x32 recvmsg compat_sys_recvmsg

[6/9] fs: remove the compat readv/writev syscalls

Commit Message

Patch