A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Uninline find_task_by_xxx set of functions

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The find_task_by_something is a set of macros are used to find task by pid
depending on what kind of pid is proposed - global or virtual one.  All of
them are wrappers above the most generic one - find_task_by_pid_type_ns() -
and just substitute some args for it.

It turned out, that dereferencing the current->nsproxy->pid_ns construction
and pushing one more argument on the stack inline cause kernel text size to
grow.

This patch moves all this stuff out-of-line into kernel/pid.c.  Together
with the next patch it saves a bit less than 400 bytes from the .text
section.

Signed-off-by: Pavel Emelyanov <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Paul Menage <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Pavel Emelyanov 2007-10-18 23:40:16 -07:00 • committed by Linus Torvalds
commit 228ebcbe63
12 changed files with 41 additions and 38 deletions
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3
mm/migrate.c
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@ -925,8 +925,7 @@ asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
/* Find the mm_struct */
read_lock(&tasklist_lock);
task = pid ?
find_task_by_pid_ns(pid, current->nsproxy->pid_ns) : current;
task = pid ? find_task_by_vpid(pid) : current;
if (!task) {
read_unlock(&tasklist_lock);
return -ESRCH;