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| author | Pavel Emelianov <xemul@openvz.org> | 2007-10-18 23:39:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-19 11:53:37 -0700 |
| commit | a47afb0f9d794d525a372c8d69902147cc88222a (patch) | |
| tree | 7bd67280e2edc1c3b1803d4a93bee794088e9342 /kernel/sys.c | |
| parent | 858d72ead4864da0fb0b89b919524125ce998e27 (diff) | |
| download | lwn-a47afb0f9d794d525a372c8d69902147cc88222a.tar.gz lwn-a47afb0f9d794d525a372c8d69902147cc88222a.zip | |
pid namespaces: round up the API
The set of functions process_session, task_session, process_group and
task_pgrp is confusing, as the names can be mixed with each other when looking
at the code for a long time.
The proposals are to
* equip the functions that return the integer with _nr suffix to
represent that fact,
* and to make all functions work with task (not process) by making
the common prefix of the same name.
For monotony the routines signal_session() and set_signal_session() are
replaced with task_session_nr() and set_task_session(), especially since they
are only used with the explicit task->signal dereference.
Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index b8fcbc640193..4cfa213a5ac2 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -968,7 +968,7 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) if (err) goto out; - if (process_group(p) != pgid) { + if (task_pgrp_nr(p) != pgid) { detach_pid(p, PIDTYPE_PGID); p->signal->pgrp = pgid; attach_pid(p, PIDTYPE_PGID, find_pid(pgid)); @@ -984,7 +984,7 @@ out: asmlinkage long sys_getpgid(pid_t pid) { if (!pid) - return process_group(current); + return task_pgrp_nr(current); else { int retval; struct task_struct *p; @@ -996,7 +996,7 @@ asmlinkage long sys_getpgid(pid_t pid) if (p) { retval = security_task_getpgid(p); if (!retval) - retval = process_group(p); + retval = task_pgrp_nr(p); } read_unlock(&tasklist_lock); return retval; @@ -1008,7 +1008,7 @@ asmlinkage long sys_getpgid(pid_t pid) asmlinkage long sys_getpgrp(void) { /* SMP - assuming writes are word atomic this is fine */ - return process_group(current); + return task_pgrp_nr(current); } #endif @@ -1016,7 +1016,7 @@ asmlinkage long sys_getpgrp(void) asmlinkage long sys_getsid(pid_t pid) { if (!pid) - return process_session(current); + return task_session_nr(current); else { int retval; struct task_struct *p; @@ -1028,7 +1028,7 @@ asmlinkage long sys_getsid(pid_t pid) if (p) { retval = security_task_getsid(p); if (!retval) - retval = process_session(p); + retval = task_session_nr(p); } read_unlock(&tasklist_lock); return retval; @@ -1065,7 +1065,7 @@ asmlinkage long sys_setsid(void) group_leader->signal->tty = NULL; spin_unlock(&group_leader->sighand->siglock); - err = process_group(group_leader); + err = task_pgrp_nr(group_leader); out: write_unlock_irq(&tasklist_lock); return err; |