Applied in ckpt-v22-dev (will be pushed soon) Thanks, Oren. On 05/03/2010 10:04 PM, Sukadev Bhattiprolu wrote: > > Sorry, I thought I had sent this minor patch out earlier, but I just > realized I had not. > --- > > From: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx> > Date: Mon, 3 May 2010 11:38:16 -0700 > Subject: [PATCH 1/1] eclone(): Remove extra __user and add a comment > > As pointed out by Russel King, '__user' does not make sense on an integer > type. Remove it. Also add a comment on why we want 'stack_size' to be 0 > on x86 and s390. > > Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxxxxxxx> > --- > arch/s390/kernel/process.c | 5 ++++- > arch/x86/kernel/process.c | 5 ++++- > 2 files changed, 8 insertions(+), 2 deletions(-) > > diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c > index efc7e8a..b00ffad 100644 > --- a/arch/s390/kernel/process.c > +++ b/arch/s390/kernel/process.c > @@ -276,7 +276,7 @@ SYSCALL_DEFINE4(eclone, unsigned int, flags_low, struct clone_args __user *, > int __user *parent_tid_ptr; > int __user *child_tid_ptr; > unsigned long flags; > - unsigned long __user child_stack; > + unsigned long child_stack; > unsigned long stack_size; > > rc = fetch_clone_args_from_user(uca, args_size, &kca); > @@ -288,6 +288,9 @@ SYSCALL_DEFINE4(eclone, unsigned int, flags_low, struct clone_args __user *, > child_tid_ptr = (int __user *) kca.child_tid_ptr; > > stack_size = (unsigned long) kca.child_stack_size; > + /* > + * s390 does not need/use the stack_size. Ensure it is unused. > + */ > if (stack_size) > return -EINVAL; > > diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c > index 5abad20..8b1699a 100644 > --- a/arch/x86/kernel/process.c > +++ b/arch/x86/kernel/process.c > @@ -268,7 +268,7 @@ sys_eclone(unsigned flags_low, struct clone_args __user *uca, > unsigned long flags; > int __user *parent_tidp; > int __user *child_tidp; > - unsigned long __user stack; > + unsigned long stack; > unsigned long stack_size; > > rc = fetch_clone_args_from_user(uca, args_size, &kca); > @@ -286,6 +286,9 @@ sys_eclone(unsigned flags_low, struct clone_args __user *uca, > parent_tidp = (int *)(unsigned long)kca.parent_tid_ptr; > child_tidp = (int *)(unsigned long)kca.child_tid_ptr; > > + /* > + * x86 does not need/use the stack_size. Ensure it is unused. > + */ > stack_size = (unsigned long)kca.child_stack_size; > if (stack_size) > return -EINVAL; > > _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
