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[PATCH] add process_session() helper routine: deprecate old field

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Add an anonymous union and ((deprecated)) to catch direct usage of the
session field.

[akpm@osdl.org: fix various missed conversions]
[jdike@addtoit.com: fix UML bug]
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Cedric Le Goater 2006-12-08 02:37:55 -08:00 • committed by Linus Torvalds
parent 937949d9ed
commit 1ec320afdc
6 changed files with 27 additions and 11 deletions
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11
include/linux/init_task.h
View file

@ -57,17 +57,18 @@
.cpu_vm_mask = CPU_MASK_ALL, \
}
#define INIT_SIGNALS(sig) { \
.count = ATOMIC_INIT(1), \
#define INIT_SIGNALS(sig) { \
.count = ATOMIC_INIT(1), \
.wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
.shared_pending = { \
.shared_pending = { \
.list = LIST_HEAD_INIT(sig.shared_pending.list), \
.signal = {{0}}}, \
.signal = {{0}}}, \
.posix_timers = LIST_HEAD_INIT(sig.posix_timers), \
.cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \
.rlim = INIT_RLIMITS, \
.pgrp = 1, \
.session = 1, \
.tty_old_pgrp = 0, \
{ .__session = 1}, \
}
extern struct nsproxy init_nsproxy;

19
include/linux/sched.h
View file

@ -436,7 +436,12 @@ struct signal_struct {
/* job control IDs */
pid_t pgrp;
pid_t tty_old_pgrp;
pid_t session;
union {
pid_t session __deprecated;
pid_t __session;
};
/* boolean value for session group leader */
int leader;
@ -1047,9 +1052,19 @@ static inline pid_t process_group(struct task_struct *tsk)
return tsk->signal->pgrp;
}
static inline pid_t signal_session(struct signal_struct *sig)
{
return sig->__session;
}
static inline pid_t process_session(struct task_struct *tsk)
{
return tsk->signal->session;
return signal_session(tsk->signal);
}
static inline void set_signal_session(struct signal_struct *sig, pid_t session)
{
sig->__session = session;
}
static inline struct pid *task_pid(struct task_struct *task)