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Commit 59ab844e authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Linus Torvalds
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compat: remove some compat entry points 

These are all handled correctly when calling the native system call entry
point, so remove the special cases.

Link: https://lkml.kernel.org/r/20210727144859.4150043-6-arnd@kernel.orgSigned-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent e130242d
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Showing with 42 additions and 117 deletions
arch/arm64/include/asm/unistd32.h
View file @ 59ab844e
......@@ -649,11 +649,11 @@ __SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch)
#define __NR_inotify_rm_watch 318
__SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch)
#define __NR_mbind 319
__SYSCALL(__NR_mbind, compat_sys_mbind)
__SYSCALL(__NR_mbind, sys_mbind)
#define __NR_get_mempolicy 320
__SYSCALL(__NR_get_mempolicy, compat_sys_get_mempolicy)
__SYSCALL(__NR_get_mempolicy, sys_get_mempolicy)
#define __NR_set_mempolicy 321
__SYSCALL(__NR_set_mempolicy, compat_sys_set_mempolicy)
__SYSCALL(__NR_set_mempolicy, sys_set_mempolicy)
#define __NR_openat 322
__SYSCALL(__NR_openat, compat_sys_openat)
#define __NR_mkdirat 323
......@@ -699,7 +699,7 @@ __SYSCALL(__NR_tee, sys_tee)
#define __NR_vmsplice 343
__SYSCALL(__NR_vmsplice, sys_vmsplice)
#define __NR_move_pages 344
__SYSCALL(__NR_move_pages, compat_sys_move_pages)
__SYSCALL(__NR_move_pages, sys_move_pages)
#define __NR_getcpu 345
__SYSCALL(__NR_getcpu, sys_getcpu)
#define __NR_epoll_pwait 346
......@@ -811,7 +811,7 @@ __SYSCALL(__NR_rseq, sys_rseq)
#define __NR_io_pgetevents 399
__SYSCALL(__NR_io_pgetevents, compat_sys_io_pgetevents)
#define __NR_migrate_pages 400
__SYSCALL(__NR_migrate_pages, compat_sys_migrate_pages)
__SYSCALL(__NR_migrate_pages, sys_migrate_pages)
#define __NR_kexec_file_load 401
__SYSCALL(__NR_kexec_file_load, sys_kexec_file_load)
/* 402 is unused */
......
arch/mips/kernel/syscalls/syscall_n32.tbl
View file @ 59ab844e
......@@ -239,9 +239,9 @@
228 n32 clock_nanosleep sys_clock_nanosleep_time32
229 n32 tgkill sys_tgkill
230 n32 utimes sys_utimes_time32
231 n32 mbind compat_sys_mbind
232 n32 get_mempolicy compat_sys_get_mempolicy
233 n32 set_mempolicy compat_sys_set_mempolicy
231 n32 mbind sys_mbind
232 n32 get_mempolicy sys_get_mempolicy
233 n32 set_mempolicy sys_set_mempolicy
234 n32 mq_open compat_sys_mq_open
235 n32 mq_unlink sys_mq_unlink
236 n32 mq_timedsend sys_mq_timedsend_time32
......@@ -258,7 +258,7 @@
247 n32 inotify_init sys_inotify_init
248 n32 inotify_add_watch sys_inotify_add_watch
249 n32 inotify_rm_watch sys_inotify_rm_watch
250 n32 migrate_pages compat_sys_migrate_pages
250 n32 migrate_pages sys_migrate_pages
251 n32 openat sys_openat
252 n32 mkdirat sys_mkdirat
253 n32 mknodat sys_mknodat
......@@ -279,7 +279,7 @@
268 n32 sync_file_range sys_sync_file_range
269 n32 tee sys_tee
270 n32 vmsplice sys_vmsplice
271 n32 move_pages compat_sys_move_pages
271 n32 move_pages sys_move_pages
272 n32 set_robust_list compat_sys_set_robust_list
273 n32 get_robust_list compat_sys_get_robust_list
274 n32 kexec_load compat_sys_kexec_load
......
arch/mips/kernel/syscalls/syscall_o32.tbl
View file @ 59ab844e
......@@ -279,9 +279,9 @@
265 o32 clock_nanosleep sys_clock_nanosleep_time32
266 o32 tgkill sys_tgkill
267 o32 utimes sys_utimes_time32
268 o32 mbind sys_mbind compat_sys_mbind
269 o32 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
270 o32 set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
268 o32 mbind sys_mbind
269 o32 get_mempolicy sys_get_mempolicy
270 o32 set_mempolicy sys_set_mempolicy
271 o32 mq_open sys_mq_open compat_sys_mq_open
272 o32 mq_unlink sys_mq_unlink
273 o32 mq_timedsend sys_mq_timedsend_time32
......@@ -298,7 +298,7 @@
284 o32 inotify_init sys_inotify_init
285 o32 inotify_add_watch sys_inotify_add_watch
286 o32 inotify_rm_watch sys_inotify_rm_watch
287 o32 migrate_pages sys_migrate_pages compat_sys_migrate_pages
287 o32 migrate_pages sys_migrate_pages
288 o32 openat sys_openat compat_sys_openat
289 o32 mkdirat sys_mkdirat
290 o32 mknodat sys_mknodat
......@@ -319,7 +319,7 @@
305 o32 sync_file_range sys_sync_file_range sys32_sync_file_range
306 o32 tee sys_tee
307 o32 vmsplice sys_vmsplice
308 o32 move_pages sys_move_pages compat_sys_move_pages
308 o32 move_pages sys_move_pages
309 o32 set_robust_list sys_set_robust_list compat_sys_set_robust_list
310 o32 get_robust_list sys_get_robust_list compat_sys_get_robust_list
311 o32 kexec_load sys_kexec_load compat_sys_kexec_load
......
arch/parisc/kernel/syscalls/syscall.tbl
View file @ 59ab844e
......@@ -292,9 +292,9 @@
258 32 clock_nanosleep sys_clock_nanosleep_time32
258 64 clock_nanosleep sys_clock_nanosleep
259 common tgkill sys_tgkill
260 common mbind sys_mbind compat_sys_mbind
261 common get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
262 common set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
260 common mbind sys_mbind
261 common get_mempolicy sys_get_mempolicy
262 common set_mempolicy sys_set_mempolicy
# 263 was vserver
264 common add_key sys_add_key
265 common request_key sys_request_key
......@@ -331,7 +331,7 @@
292 64 sync_file_range sys_sync_file_range
293 common tee sys_tee
294 common vmsplice sys_vmsplice
295 common move_pages sys_move_pages compat_sys_move_pages
295 common move_pages sys_move_pages
296 common getcpu sys_getcpu
297 common epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
298 common statfs64 sys_statfs64 compat_sys_statfs64
......
arch/powerpc/kernel/syscalls/syscall.tbl
View file @ 59ab844e
......@@ -330,10 +330,10 @@
256 64 sys_debug_setcontext sys_ni_syscall
256 spu sys_debug_setcontext sys_ni_syscall
# 257 reserved for vserver
258 nospu migrate_pages sys_migrate_pages compat_sys_migrate_pages
259 nospu mbind sys_mbind compat_sys_mbind
260 nospu get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
261 nospu set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
258 nospu migrate_pages sys_migrate_pages
259 nospu mbind sys_mbind
260 nospu get_mempolicy sys_get_mempolicy
261 nospu set_mempolicy sys_set_mempolicy
262 nospu mq_open sys_mq_open compat_sys_mq_open
263 nospu mq_unlink sys_mq_unlink
264 32 mq_timedsend sys_mq_timedsend_time32
......@@ -381,7 +381,7 @@
298 common faccessat sys_faccessat
299 common get_robust_list sys_get_robust_list compat_sys_get_robust_list
300 common set_robust_list sys_set_robust_list compat_sys_set_robust_list
301 common move_pages sys_move_pages compat_sys_move_pages
301 common move_pages sys_move_pages
302 common getcpu sys_getcpu
303 nospu epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
304 32 utimensat sys_utimensat_time32
......
arch/s390/kernel/syscalls/syscall.tbl
View file @ 59ab844e
......@@ -274,9 +274,9 @@
265 common statfs64 sys_statfs64 compat_sys_statfs64
266 common fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
267 common remap_file_pages sys_remap_file_pages sys_remap_file_pages
268 common mbind sys_mbind compat_sys_mbind
269 common get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
270 common set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
268 common mbind sys_mbind sys_mbind
269 common get_mempolicy sys_get_mempolicy sys_get_mempolicy
270 common set_mempolicy sys_set_mempolicy sys_set_mempolicy
271 common mq_open sys_mq_open compat_sys_mq_open
272 common mq_unlink sys_mq_unlink sys_mq_unlink
273 common mq_timedsend sys_mq_timedsend sys_mq_timedsend_time32
......@@ -293,7 +293,7 @@
284 common inotify_init sys_inotify_init sys_inotify_init
285 common inotify_add_watch sys_inotify_add_watch sys_inotify_add_watch
286 common inotify_rm_watch sys_inotify_rm_watch sys_inotify_rm_watch
287 common migrate_pages sys_migrate_pages compat_sys_migrate_pages
287 common migrate_pages sys_migrate_pages sys_migrate_pages
288 common openat sys_openat compat_sys_openat
289 common mkdirat sys_mkdirat sys_mkdirat
290 common mknodat sys_mknodat sys_mknodat
......@@ -317,7 +317,7 @@
307 common sync_file_range sys_sync_file_range compat_sys_s390_sync_file_range
308 common tee sys_tee sys_tee
309 common vmsplice sys_vmsplice sys_vmsplice
310 common move_pages sys_move_pages compat_sys_move_pages
310 common move_pages sys_move_pages sys_move_pages
311 common getcpu sys_getcpu sys_getcpu
312 common epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
313 common utimes sys_utimes sys_utimes_time32
......
arch/sparc/kernel/syscalls/syscall.tbl
View file @ 59ab844e
......@@ -365,12 +365,12 @@
299 common unshare sys_unshare
300 common set_robust_list sys_set_robust_list compat_sys_set_robust_list
301 common get_robust_list sys_get_robust_list compat_sys_get_robust_list
302 common migrate_pages sys_migrate_pages compat_sys_migrate_pages
303 common mbind sys_mbind compat_sys_mbind
304 common get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
305 common set_mempolicy sys_set_mempolicy compat_sys_set_mempolicy
302 common migrate_pages sys_migrate_pages
303 common mbind sys_mbind
304 common get_mempolicy sys_get_mempolicy
305 common set_mempolicy sys_set_mempolicy
306 common kexec_load sys_kexec_load compat_sys_kexec_load
307 common move_pages sys_move_pages compat_sys_move_pages
307 common move_pages sys_move_pages
308 common getcpu sys_getcpu
309 common epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait
310 32 utimensat sys_utimensat_time32
......
arch/x86/entry/syscalls/syscall_32.tbl
View file @ 59ab844e
......@@ -286,7 +286,7 @@
272 i386 fadvise64_64 sys_ia32_fadvise64_64
273 i386 vserver
274 i386 mbind sys_mbind
275 i386 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
275 i386 get_mempolicy sys_get_mempolicy
276 i386 set_mempolicy sys_set_mempolicy
277 i386 mq_open sys_mq_open compat_sys_mq_open
278 i386 mq_unlink sys_mq_unlink
......@@ -328,7 +328,7 @@
314 i386 sync_file_range sys_ia32_sync_file_range
315 i386 tee sys_tee
316 i386 vmsplice sys_vmsplice
317 i386 move_pages sys_move_pages compat_sys_move_pages
317 i386 move_pages sys_move_pages
318 i386 getcpu sys_getcpu
319 i386 epoll_pwait sys_epoll_pwait
320 i386 utimensat sys_utimensat_time32
......
arch/x86/entry/syscalls/syscall_64.tbl
View file @ 59ab844e
......@@ -398,7 +398,7 @@
530 x32 set_robust_list compat_sys_set_robust_list
531 x32 get_robust_list compat_sys_get_robust_list
532 x32 vmsplice sys_vmsplice
533 x32 move_pages compat_sys_move_pages
533 x32 move_pages sys_move_pages
534 x32 preadv compat_sys_preadv64
535 x32 pwritev compat_sys_pwritev64
536 x32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
......
include/linux/compat.h
View file @ 59ab844e
......@@ -799,26 +799,6 @@ asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr
/* mm/fadvise.c: No generic prototype for fadvise64_64 */
/* mm/, CONFIG_MMU only */
asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
compat_ulong_t mode,
compat_ulong_t __user *nmask,
compat_ulong_t maxnode, compat_ulong_t flags);
asmlinkage long compat_sys_get_mempolicy(int __user *policy,
compat_ulong_t __user *nmask,
compat_ulong_t maxnode,
compat_ulong_t addr,
compat_ulong_t flags);
asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
compat_ulong_t maxnode);
asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
const compat_ulong_t __user *new_nodes);
asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages,
__u32 __user *pages,
const int __user *nodes,
int __user *status,
int flags);
asmlinkage long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid,
compat_pid_t pid, int sig,
struct compat_siginfo __user *uinfo);
......
include/uapi/asm-generic/unistd.h
View file @ 59ab844e
......@@ -673,15 +673,15 @@ __SYSCALL(__NR_madvise, sys_madvise)
#define __NR_remap_file_pages 234
__SYSCALL(__NR_remap_file_pages, sys_remap_file_pages)
#define __NR_mbind 235
__SC_COMP(__NR_mbind, sys_mbind, compat_sys_mbind)
__SYSCALL(__NR_mbind, sys_mbind)
#define __NR_get_mempolicy 236
__SC_COMP(__NR_get_mempolicy, sys_get_mempolicy, compat_sys_get_mempolicy)
__SYSCALL(__NR_get_mempolicy, sys_get_mempolicy)
#define __NR_set_mempolicy 237
__SC_COMP(__NR_set_mempolicy, sys_set_mempolicy, compat_sys_set_mempolicy)
__SYSCALL(__NR_set_mempolicy, sys_set_mempolicy)
#define __NR_migrate_pages 238
__SC_COMP(__NR_migrate_pages, sys_migrate_pages, compat_sys_migrate_pages)
__SYSCALL(__NR_migrate_pages, sys_migrate_pages)
#define __NR_move_pages 239
__SC_COMP(__NR_move_pages, sys_move_pages, compat_sys_move_pages)
__SYSCALL(__NR_move_pages, sys_move_pages)
#endif
#define __NR_rt_tgsigqueueinfo 240
......
kernel/sys_ni.c
View file @ 59ab844e
......@@ -292,15 +292,10 @@ COND_SYSCALL(process_madvise);
COND_SYSCALL(process_mrelease);
COND_SYSCALL(remap_file_pages);
COND_SYSCALL(mbind);
COND_SYSCALL_COMPAT(mbind);
COND_SYSCALL(get_mempolicy);
COND_SYSCALL_COMPAT(get_mempolicy);
COND_SYSCALL(set_mempolicy);
COND_SYSCALL_COMPAT(set_mempolicy);
COND_SYSCALL(migrate_pages);
COND_SYSCALL_COMPAT(migrate_pages);
COND_SYSCALL(move_pages);
COND_SYSCALL_COMPAT(move_pages);
COND_SYSCALL(perf_event_open);
COND_SYSCALL(accept4);
......
mm/mempolicy.c
View file @ 59ab844e
......@@ -1649,43 +1649,6 @@ SYSCALL_DEFINE5(get_mempolicy, int __user *, policy,
return kernel_get_mempolicy(policy, nmask, maxnode, addr, flags);
}
#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE5(get_mempolicy, int __user *, policy,
compat_ulong_t __user *, nmask,
compat_ulong_t, maxnode,
compat_ulong_t, addr, compat_ulong_t, flags)
{
return kernel_get_mempolicy(policy, (unsigned long __user *)nmask,
maxnode, addr, flags);
}
COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask,
compat_ulong_t, maxnode)
{
return kernel_set_mempolicy(mode, (unsigned long __user *)nmask, maxnode);
}
COMPAT_SYSCALL_DEFINE6(mbind, compat_ulong_t, start, compat_ulong_t, len,
compat_ulong_t, mode, compat_ulong_t __user *, nmask,
compat_ulong_t, maxnode, compat_ulong_t, flags)
{
return kernel_mbind(start, len, mode, (unsigned long __user *)nmask,
maxnode, flags);
}
COMPAT_SYSCALL_DEFINE4(migrate_pages, compat_pid_t, pid,
compat_ulong_t, maxnode,
const compat_ulong_t __user *, old_nodes,
const compat_ulong_t __user *, new_nodes)
{
return kernel_migrate_pages(pid, maxnode,
(const unsigned long __user *)old_nodes,
(const unsigned long __user *)new_nodes);
}
#endif /* CONFIG_COMPAT */
bool vma_migratable(struct vm_area_struct *vma)
{
if (vma->vm_flags & (VM_IO | VM_PFNMAP))
......
mm/migrate.c
View file @ 59ab844e
......@@ -2047,19 +2047,6 @@ SYSCALL_DEFINE6(move_pages, pid_t, pid, unsigned long, nr_pages,
return kernel_move_pages(pid, nr_pages, pages, nodes, status, flags);
}
#ifdef CONFIG_COMPAT
COMPAT_SYSCALL_DEFINE6(move_pages, pid_t, pid, compat_ulong_t, nr_pages,
compat_uptr_t __user *, pages,
const int __user *, nodes,
int __user *, status,
int, flags)
{
return kernel_move_pages(pid, nr_pages,
(const void __user *__user *)pages,
nodes, status, flags);
}
#endif /* CONFIG_COMPAT */
#ifdef CONFIG_NUMA_BALANCING
/*
* Returns true if this is a safe migration target node for misplaced NUMA
......
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