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Message-ID: <20090123171232.7a247bc6@osiris.boeblingen.de.ibm.com>
Date: Fri, 23 Jan 2009 17:12:32 +0100
From: Heiko Carstens <heiko.carstens@...ibm.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
linux-kernel <linux-kernel@...r.kernel.org>,
linux-s390 <linux-s390@...r.kernel.org>,
Heiko Carstens <heiko.carstens@...ibm.com>
Subject: [GIT PULL] s390 fixes for 2.6.29-rc3
Hi Linus,
please pull from 'for-linus' branch of
git://git390.osdl.marist.edu/pub/scm/linux-2.6.git for-linus
to receive the following updates:
Heiko Carstens (3):
[S390] personality: fix personality loss on execve
[S390] cputime: fix lowcore initialization on cpu hotplug
[S390] etr/stp: fix possible deadlock
Michael Holzheu (2):
[S390] fix compat sigaltstack syscall table entry
[S390] Add missing compat system call wrappers.
arch/s390/include/asm/elf.h | 16 +++++++-------
arch/s390/kernel/compat_wrapper.S | 38 +++++++++++++++++++++++++++++++++++++
arch/s390/kernel/syscalls.S | 12 +++++-----
arch/s390/kernel/time.c | 6 +++-
arch/s390/kernel/vtime.c | 4 +++
5 files changed, 60 insertions(+), 16 deletions(-)
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index d480f39..74d0bbb 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -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__ */
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 6035cd2..62c706e 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -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
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 76d16e0..fe5b25a 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -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)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index d649600..fc468ca 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -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();
}
/*
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 2fb36e4..ecf0304 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -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));
--
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