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signals: use HAVE_SET_RESTORE_SIGMASK

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Change all the #ifdef TIF_RESTORE_SIGMASK conditionals in non-arch code to
#ifdef HAVE_SET_RESTORE_SIGMASK.  If arch code defines it first, the generic
set_restore_sigmask() using TIF_RESTORE_SIGMASK is not defined.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roland McGrath 2008-04-30 00:53:09 -07:00 committed by Linus Torvalds
parent 49eaeb4bc4
commit f3de272b82
5 changed files with 19 additions and 13 deletions
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8
fs/compat.c
View file

@ -1634,7 +1634,7 @@ asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
return ret; return ret;
} }
#ifdef TIF_RESTORE_SIGMASK #ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long compat_sys_pselect7(int n, compat_ulong_t __user *inp, asmlinkage long compat_sys_pselect7(int n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp, compat_ulong_t __user *outp, compat_ulong_t __user *exp,
struct compat_timespec __user *tsp, compat_sigset_t __user *sigmask, struct compat_timespec __user *tsp, compat_sigset_t __user *sigmask,
@ -1825,7 +1825,7 @@ asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
return ret; return ret;
} }
#endif /* TIF_RESTORE_SIGMASK */ #endif /* HAVE_SET_RESTORE_SIGMASK */
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE) #if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
/* Stuff for NFS server syscalls... */ /* Stuff for NFS server syscalls... */
@ -2080,7 +2080,7 @@ long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2)
#ifdef CONFIG_EPOLL #ifdef CONFIG_EPOLL
#ifdef TIF_RESTORE_SIGMASK #ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long compat_sys_epoll_pwait(int epfd, asmlinkage long compat_sys_epoll_pwait(int epfd,
struct compat_epoll_event __user *events, struct compat_epoll_event __user *events,
int maxevents, int timeout, int maxevents, int timeout,
@ -2124,7 +2124,7 @@ asmlinkage long compat_sys_epoll_pwait(int epfd,
return err; return err;
} }
#endif /* TIF_RESTORE_SIGMASK */ #endif /* HAVE_SET_RESTORE_SIGMASK */
#endif /* CONFIG_EPOLL */ #endif /* CONFIG_EPOLL */

4
fs/eventpoll.c
View file

@ -1241,7 +1241,7 @@ asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
return error; return error;
} }
#ifdef TIF_RESTORE_SIGMASK #ifdef HAVE_SET_RESTORE_SIGMASK
/* /*
* Implement the event wait interface for the eventpoll file. It is the kernel * Implement the event wait interface for the eventpoll file. It is the kernel
@ -1287,7 +1287,7 @@ asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
return error; return error;
} }
#endif /* #ifdef TIF_RESTORE_SIGMASK */ #endif /* HAVE_SET_RESTORE_SIGMASK */
static int __init eventpoll_init(void) static int __init eventpoll_init(void)
{ {

8
fs/select.c
View file

@ -425,7 +425,7 @@ asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
return ret; return ret;
} }
#ifdef TIF_RESTORE_SIGMASK #ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long sys_pselect7(int n, fd_set __user *inp, fd_set __user *outp, asmlinkage long sys_pselect7(int n, fd_set __user *inp, fd_set __user *outp,
fd_set __user *exp, struct timespec __user *tsp, fd_set __user *exp, struct timespec __user *tsp,
const sigset_t __user *sigmask, size_t sigsetsize) const sigset_t __user *sigmask, size_t sigsetsize)
@ -528,7 +528,7 @@ asmlinkage long sys_pselect6(int n, fd_set __user *inp, fd_set __user *outp,
return sys_pselect7(n, inp, outp, exp, tsp, up, sigsetsize); return sys_pselect7(n, inp, outp, exp, tsp, up, sigsetsize);
} }
#endif /* TIF_RESTORE_SIGMASK */ #endif /* HAVE_SET_RESTORE_SIGMASK */
struct poll_list { struct poll_list {
struct poll_list *next; struct poll_list *next;
@ -759,7 +759,7 @@ asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
return ret; return ret;
} }
#ifdef TIF_RESTORE_SIGMASK #ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long sys_ppoll(struct pollfd __user *ufds, unsigned int nfds, asmlinkage long sys_ppoll(struct pollfd __user *ufds, unsigned int nfds,
struct timespec __user *tsp, const sigset_t __user *sigmask, struct timespec __user *tsp, const sigset_t __user *sigmask,
size_t sigsetsize) size_t sigsetsize)
@ -839,4 +839,4 @@ asmlinkage long sys_ppoll(struct pollfd __user *ufds, unsigned int nfds,
return ret; return ret;
} }
#endif /* TIF_RESTORE_SIGMASK */ #endif /* HAVE_SET_RESTORE_SIGMASK */

2
include/linux/sched.h
View file

@ -1175,7 +1175,7 @@ struct task_struct {
struct sighand_struct *sighand; struct sighand_struct *sighand;
sigset_t blocked, real_blocked; sigset_t blocked, real_blocked;
sigset_t saved_sigmask; /* To be restored with TIF_RESTORE_SIGMASK */ sigset_t saved_sigmask; /* restored if set_restore_sigmask() was used */
struct sigpending pending; struct sigpending pending;
unsigned long sas_ss_sp; unsigned long sas_ss_sp;

10
include/linux/thread_info.h
View file

@ -92,7 +92,13 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
#define set_need_resched() set_thread_flag(TIF_NEED_RESCHED) #define set_need_resched() set_thread_flag(TIF_NEED_RESCHED)
#define clear_need_resched() clear_thread_flag(TIF_NEED_RESCHED) #define clear_need_resched() clear_thread_flag(TIF_NEED_RESCHED)
#ifdef TIF_RESTORE_SIGMASK #if defined TIF_RESTORE_SIGMASK && !defined HAVE_SET_RESTORE_SIGMASK
/*
* An arch can define its own version of set_restore_sigmask() to get the
* job done however works, with or without TIF_RESTORE_SIGMASK.
*/
#define HAVE_SET_RESTORE_SIGMASK 1
/** /**
* set_restore_sigmask() - make sure saved_sigmask processing gets done * set_restore_sigmask() - make sure saved_sigmask processing gets done
* *
@ -109,7 +115,7 @@ static inline void set_restore_sigmask(void)
set_thread_flag(TIF_RESTORE_SIGMASK); set_thread_flag(TIF_RESTORE_SIGMASK);
set_thread_flag(TIF_SIGPENDING); set_thread_flag(TIF_SIGPENDING);
} }
#endif /* TIF_RESTORE_SIGMASK */ #endif /* TIF_RESTORE_SIGMASK && !HAVE_SET_RESTORE_SIGMASK */
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */