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author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-25 18:49:25 -0500 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 18:16:13 -0500 |
commit | f036b943441ac8e79b779e3500ae4820c243b4f2 (patch) | |
tree | 9dfb816a36645124f1ca06a2bff681ee4acff493 | |
parent | d7b5427cec79d993459c162db67eac9e22135e8b (diff) | |
download | op-kernel-dev-f036b943441ac8e79b779e3500ae4820c243b4f2.zip op-kernel-dev-f036b943441ac8e79b779e3500ae4820c243b4f2.tar.gz |
s390: switch to generic compat rt_sigaction
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r-- | arch/s390/Kconfig | 1 | ||||
-rw-r--r-- | arch/s390/kernel/compat_linux.h | 8 | ||||
-rw-r--r-- | arch/s390/kernel/compat_signal.c | 40 | ||||
-rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 2 |
4 files changed, 2 insertions, 49 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 17ba4f3..e3ab2d6 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -141,6 +141,7 @@ config S390 select MODULES_USE_ELF_RELA select CLONE_BACKWARDS2 select GENERIC_SIGALTSTACK + select GENERIC_COMPAT_RT_SIGACTION select GENERIC_COMPAT_RT_SIGQUEUEINFO select GENERIC_COMPAT_RT_SIGPROCMASK select GENERIC_COMPAT_RT_SIGPENDING diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h index aee753d..47e9f07e 100644 --- a/arch/s390/kernel/compat_linux.h +++ b/arch/s390/kernel/compat_linux.h @@ -68,12 +68,6 @@ struct sigcontext32 }; /* asm/signal.h */ -struct sigaction32 { - __u32 sa_handler; /* pointer */ - __u32 sa_flags; - __u32 sa_restorer; /* pointer */ - compat_sigset_t sa_mask; /* mask last for extensibility */ -}; /* asm/ucontext.h */ struct ucontext32 { @@ -139,6 +133,4 @@ long sys32_fadvise64(int fd, loff_t offset, size_t len, int advise); long sys32_fadvise64_64(struct fadvise64_64_args __user *args); long sys32_sigaction(int sig, const struct old_sigaction32 __user *act, struct old_sigaction32 __user *oact); -long sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, - struct sigaction32 __user *oact, size_t sigsetsize); #endif /* _ASM_S390X_S390_H */ diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index eacb0d6..141bfe1 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -194,46 +194,6 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act, return ret; } -asmlinkage long -sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, - struct sigaction32 __user *oact, size_t sigsetsize) -{ - struct k_sigaction new_ka, old_ka; - unsigned long sa_handler; - int ret; - compat_sigset_t set32; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(compat_sigset_t)) - return -EINVAL; - - if (act) { - ret = get_user(sa_handler, &act->sa_handler); - ret |= __copy_from_user(&set32, &act->sa_mask, - sizeof(compat_sigset_t)); - new_ka.sa.sa_mask.sig[0] = - set32.sig[0] | (((long)set32.sig[1]) << 32); - ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags); - - if (ret) - return -EFAULT; - new_ka.sa.sa_handler = (__sighandler_t) sa_handler; - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); - set32.sig[0] = old_ka.sa.sa_mask.sig[0]; - ret = put_user((unsigned long)old_ka.sa.sa_handler, &oact->sa_handler); - ret |= __copy_to_user(&oact->sa_mask, &set32, - sizeof(compat_sigset_t)); - ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - } - - return ret; -} - static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs) { _s390_regs_common32 regs32; diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 0dd80b9..1f8af00 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -691,7 +691,7 @@ ENTRY(sys32_rt_sigaction_wrapper) llgtr %r3,%r3 # const struct sigaction_emu31 * llgtr %r4,%r4 # const struct sigaction_emu31 * llgfr %r5,%r5 # size_t - jg sys32_rt_sigaction # branch to system call + jg compat_sys_rt_sigaction # branch to system call ENTRY(sys32_rt_sigprocmask_wrapper) lgfr %r2,%r2 # int |