[PATCH] add process_session() helper routine

Replace occurences of task->signal->session by a new process_session() helper
routine.

It will be useful for pid namespaces to abstract the session pid number.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index c6dbb4a7ec7..d3adfd353ff 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1317,7 +1317,7 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
         prstatus->pr_pid = p->pid;
         prstatus->pr_ppid = p->parent->pid;
         prstatus->pr_pgrp = process_group(p);
-        prstatus->pr_sid = p->signal->session;
+        prstatus->pr_sid = process_session(p);
         if (thread_group_leader(p)) {
                 /*
                  * This is the record for the group leader.  Add in the
@@ -1363,7 +1363,7 @@ static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
         psinfo->pr_pid = p->pid;
         psinfo->pr_ppid = p->parent->pid;
         psinfo->pr_pgrp = process_group(p);
-        psinfo->pr_sid = p->signal->session;
+        psinfo->pr_sid = process_session(p);
 
         i = p->state ? ffz(~p->state) + 1 : 0;
         psinfo->pr_state = i;
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 9f0b7efc3df..76f06f6bc2f 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1322,7 +1322,7 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
         prstatus->pr_pid = p->pid;
         prstatus->pr_ppid = p->parent->pid;
         prstatus->pr_pgrp = process_group(p);
-        prstatus->pr_sid = p->signal->session;
+        prstatus->pr_sid = process_session(p);
         if (thread_group_leader(p)) {
                 /*
                  * This is the record for the group leader.  Add in the
@@ -1371,7 +1371,7 @@ static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
         psinfo->pr_pid = p->pid;
         psinfo->pr_ppid = p->parent->pid;
         psinfo->pr_pgrp = process_group(p);
-        psinfo->pr_sid = p->signal->session;
+        psinfo->pr_sid = process_session(p);
 
         i = p->state ? ffz(~p->state) + 1 : 0;
         psinfo->pr_state = i;