redonkable/alistair23-linux
redonkable/alistair23-linux
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Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] Add missing compat system call wrappers.
  [S390] etr/stp: fix possible deadlock
  [S390] cputime: fix lowcore initialization on cpu hotplug
  [S390] fix compat sigaltstack syscall table entry
  [S390] personality: fix personality loss on execve
This commit is contained in:
Linus Torvalds 2009-01-26 10:26:27 -08:00
parent 832fb4a01c e34a628041
commit 9f4863b7dc
5 changed files with 60 additions and 16 deletions
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16
arch/s390/include/asm/elf.h
View file

@ -172,14 +172,14 @@ extern char elf_platform[];
#ifndef __s390x__
#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
#else /* __s390x__ */
#define SET_PERSONALITY(ex) \
do { \
if (current->personality != PER_LINUX32) \
set_personality(PER_LINUX); \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
set_thread_flag(TIF_31BIT); \
else \
clear_thread_flag(TIF_31BIT); \
#define SET_PERSONALITY(ex) \
do { \
if (personality(current->personality) != PER_LINUX32) \
set_personality(PER_LINUX); \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
set_thread_flag(TIF_31BIT); \
else \
clear_thread_flag(TIF_31BIT); \
} while (0)
#endif /* __s390x__ */

38
arch/s390/kernel/compat_wrapper.S
View file

@ -1767,3 +1767,41 @@ sys_dup3_wrapper:
sys_epoll_create1_wrapper:
lgfr %r2,%r2 # int
jg sys_epoll_create1 # branch to system call
.globl sys32_readahead_wrapper
sys32_readahead_wrapper:
lgfr %r2,%r2 # int
llgfr %r3,%r3 # u32
llgfr %r4,%r4 # u32
lgfr %r5,%r5 # s32
jg sys32_readahead # branch to system call
.globl sys32_sendfile64_wrapper
sys32_sendfile64_wrapper:
lgfr %r2,%r2 # int
lgfr %r3,%r3 # int
llgtr %r4,%r4 # compat_loff_t *
lgfr %r5,%r5 # s32
jg sys32_sendfile64 # branch to system call
.globl sys_tkill_wrapper
sys_tkill_wrapper:
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # int
jg sys_tkill # branch to system call
.globl sys_tgkill_wrapper
sys_tgkill_wrapper:
lgfr %r2,%r2 # pid_t
lgfr %r3,%r3 # pid_t
lgfr %r4,%r4 # int
jg sys_tgkill # branch to system call
.globl compat_sys_keyctl_wrapper
compat_sys_keyctl_wrapper:
llgfr %r2,%r2 # u32
llgfr %r3,%r3 # u32
llgfr %r4,%r4 # u32
llgfr %r5,%r5 # u32
llgfr %r6,%r6 # u32
jg compat_sys_keyctl # branch to system call

12
arch/s390/kernel/syscalls.S
View file

@ -194,7 +194,7 @@ SYSCALL(sys_chown16,sys_ni_syscall,sys32_chown16_wrapper) /* old chown16 syscall
SYSCALL(sys_getcwd,sys_getcwd,sys32_getcwd_wrapper)
SYSCALL(sys_capget,sys_capget,sys32_capget_wrapper)
SYSCALL(sys_capset,sys_capset,sys32_capset_wrapper) /* 185 */
SYSCALL(sys_sigaltstack,sys_sigaltstack,sys32_sigaltstack)
SYSCALL(sys_sigaltstack,sys_sigaltstack,sys32_sigaltstack_wrapper)
SYSCALL(sys_sendfile,sys_sendfile64,sys32_sendfile_wrapper)
NI_SYSCALL /* streams1 */
NI_SYSCALL /* streams2 */
@ -230,8 +230,8 @@ SYSCALL(sys_mincore,sys_mincore,sys32_mincore_wrapper)
SYSCALL(sys_madvise,sys_madvise,sys32_madvise_wrapper)
SYSCALL(sys_getdents64,sys_getdents64,sys32_getdents64_wrapper) /* 220 */
SYSCALL(sys_fcntl64,sys_ni_syscall,compat_sys_fcntl64_wrapper)
SYSCALL(sys_readahead,sys_readahead,sys32_readahead)
SYSCALL(sys_sendfile64,sys_ni_syscall,sys32_sendfile64)
SYSCALL(sys_readahead,sys_readahead,sys32_readahead_wrapper)
SYSCALL(sys_sendfile64,sys_ni_syscall,sys32_sendfile64_wrapper)
SYSCALL(sys_setxattr,sys_setxattr,sys32_setxattr_wrapper)
SYSCALL(sys_lsetxattr,sys_lsetxattr,sys32_lsetxattr_wrapper) /* 225 */
SYSCALL(sys_fsetxattr,sys_fsetxattr,sys32_fsetxattr_wrapper)
@ -245,11 +245,11 @@ SYSCALL(sys_removexattr,sys_removexattr,sys32_removexattr_wrapper)
SYSCALL(sys_lremovexattr,sys_lremovexattr,sys32_lremovexattr_wrapper)
SYSCALL(sys_fremovexattr,sys_fremovexattr,sys32_fremovexattr_wrapper) /* 235 */
SYSCALL(sys_gettid,sys_gettid,sys_gettid)
SYSCALL(sys_tkill,sys_tkill,sys_tkill)
SYSCALL(sys_tkill,sys_tkill,sys_tkill_wrapper)
SYSCALL(sys_futex,sys_futex,compat_sys_futex_wrapper)
SYSCALL(sys_sched_setaffinity,sys_sched_setaffinity,sys32_sched_setaffinity_wrapper)
SYSCALL(sys_sched_getaffinity,sys_sched_getaffinity,sys32_sched_getaffinity_wrapper) /* 240 */
SYSCALL(sys_tgkill,sys_tgkill,sys_tgkill)
SYSCALL(sys_tgkill,sys_tgkill,sys_tgkill_wrapper)
NI_SYSCALL /* reserved for TUX */
SYSCALL(sys_io_setup,sys_io_setup,sys32_io_setup_wrapper)
SYSCALL(sys_io_destroy,sys_io_destroy,sys32_io_destroy_wrapper)
@ -288,7 +288,7 @@ SYSCALL(sys_mq_getsetattr,sys_mq_getsetattr,compat_sys_mq_getsetattr_wrapper)
SYSCALL(sys_kexec_load,sys_kexec_load,compat_sys_kexec_load_wrapper)
SYSCALL(sys_add_key,sys_add_key,compat_sys_add_key_wrapper)
SYSCALL(sys_request_key,sys_request_key,compat_sys_request_key_wrapper)
SYSCALL(sys_keyctl,sys_keyctl,compat_sys_keyctl) /* 280 */
SYSCALL(sys_keyctl,sys_keyctl,compat_sys_keyctl_wrapper) /* 280 */
SYSCALL(sys_waitid,sys_waitid,compat_sys_waitid_wrapper)
SYSCALL(sys_ioprio_set,sys_ioprio_set,sys_ioprio_set_wrapper)
SYSCALL(sys_ioprio_get,sys_ioprio_get,sys_ioprio_get_wrapper)

6
arch/s390/kernel/time.c
View file

@ -399,8 +399,10 @@ static struct workqueue_struct *time_sync_wq;
static void __init time_init_wq(void)
{
if (!time_sync_wq)
time_sync_wq = create_singlethread_workqueue("timesync");
if (time_sync_wq)
return;
time_sync_wq = create_singlethread_workqueue("timesync");
stop_machine_create();
}
/*

4
arch/s390/kernel/vtime.c
View file

@ -516,8 +516,12 @@ EXPORT_SYMBOL(del_virt_timer);
*/
void init_cpu_vtimer(void)
{
struct thread_info *ti = current_thread_info();
struct vtimer_queue *vq;
S390_lowcore.user_timer = ti->user_timer;
S390_lowcore.system_timer = ti->system_timer;
/* kick the virtual timer */
asm volatile ("STCK %0" : "=m" (S390_lowcore.last_update_clock));
asm volatile ("STPT %0" : "=m" (S390_lowcore.last_update_timer));