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authorPavel Emelyanov <xemul@openvz.org>2008-04-30 00:54:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:48 -0700
commit5cd204550b1a006f2b0c986b0e0f53220ebfd391 (patch)
treeee0f5e042072d4d2f4a3c6cd6e3a8b60676868ae /Documentation
parentcb41d6d068716b2b3666925da34d3d7e658bf4f3 (diff)
Deprecate find_task_by_pid()
There are some places that are known to operate on tasks' global pids only: * the rest_init() call (called on boot) * the kgdb's getthread * the create_kthread() (since the kthread is run in init ns) So use the find_task_by_pid_ns(..., &init_pid_ns) there and schedule the find_task_by_pid for removal. [sukadev@us.ibm.com: Fix warning in kernel/pid.c] Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: 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 'Documentation')
-rw-r--r--Documentation/feature-removal-schedule.txt18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 599fe55bf297..3c35d452b1a9 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -138,6 +138,24 @@ Who: Kay Sievers <kay.sievers@suse.de>
---------------------------
+What: find_task_by_pid
+When: 2.6.26
+Why: With pid namespaces, calling this funciton will return the
+ wrong task when called from inside a namespace.
+
+ The best way to save a task pid and find a task by this
+ pid later, is to find this task's struct pid pointer (or get
+ it directly from the task) and call pid_task() later.
+
+ If someone really needs to get a task by its pid_t, then
+ he most likely needs the find_task_by_vpid() to get the
+ task from the same namespace as the current task is in, but
+ this may be not so in general.
+
+Who: Pavel Emelyanov <xemul@openvz.org>
+
+---------------------------
+
What: ACPI procfs interface
When: July 2008
Why: ACPI sysfs conversion should be finished by January 2008.