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attach_pid() with struct pid parameter

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attach_pid() currently takes a pid_t and then uses find_pid() to find the
corresponding struct pid.  Sometimes we already have the struct pid.  We can
then skip find_pid() if attach_pid() were to take a struct pid parameter.

Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Serge Hallyn <serue@us.ibm.com>
Cc: <containers@lists.osdl.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Sukadev Bhattiprolu
2007-05-10 22:22:58 -07:00
committed by Linus Torvalds
parent 4ac24b3ba9
commit e713d0dab2
6 changed files with 18 additions and 13 deletions
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4
kernel/exit.c
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@@ -302,12 +302,12 @@ void __set_special_pids(pid_t session, pid_t pgrp)
if (process_session(curr) != session) {
detach_pid(curr, PIDTYPE_SID);
set_signal_session(curr->signal, session);
attach_pid(curr, PIDTYPE_SID, session);
attach_pid(curr, PIDTYPE_SID, find_pid(session));
}
if (process_group(curr) != pgrp) {
detach_pid(curr, PIDTYPE_PGID);
curr->signal->pgrp = pgrp;
attach_pid(curr, PIDTYPE_PGID, pgrp);
attach_pid(curr, PIDTYPE_PGID, find_pid(pgrp));
}
}