[PATCH]: exec: avoid propagating PF_NO_SETAFFINITY into userspace child

[zhang . yi20]

Userspace process doesn't want the PF_NO_SETAFFINITY, but its parent may be
a kernel worker thread which has PF_NO_SETAFFINITY set.
Clearing this flag in usersapce child to enable its migrating capability.


Signed-off-by: Zhang Yi <zhang.yi20@xxxxxxxxxx>

--- linux-3.12.old/fs/exec.c	2013-11-26 08:53:12.175811856 +0000
+++ linux-3.12/fs/exec.c	2013-11-26 09:26:53.575999604 +0000
@@ -1091,7 +1091,8 @@ int flush_old_exec(struct linux_binprm *

 	set_fs(USER_DS);
 	current->flags &=
-		~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | PF_NOFREEZE);
+		~(PF_RANDOMIZE | PF_FORKNOEXEC | PF_KTHREAD | PF_NOFREEZE
+		| PF_NO_SETAFFINITY);
 	flush_thread();
 	current->personality &= ~bprm->per_clear;


Thanks.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/