On Wed, Apr 24, 2013 at 07:13:08PM -0400, Naoya Horiguchi wrote:
> On Wed, Apr 24, 2013 at 07:05:35PM -0400, Naoya Horiguchi wrote:
> ...
> > diff --git a/ipc/shm.c b/ipc/shm.c
> > index cb858df..e2cb809 100644
> > --- a/ipc/shm.c
> > +++ b/ipc/shm.c
> > @@ -494,7 +494,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
> > /* hugetlb_file_setup applies strict accounting */
> > if (shmflg & SHM_NORESERVE)
> > acctflag = VM_NORESERVE;
> > - file = hugetlb_file_setup(name, 0, size, acctflag,
> > + file = hugetlb_file_setup(name, NULL, acctflag,
> > &shp->mlock_user, HUGETLB_SHMFS_INODE,
> > (shmflg >> SHM_HUGE_SHIFT) & SHM_HUGE_MASK);
> > } else {
>
> Ugh, NULL is not correct, it should be &size.
No, shm does not want its size variable aligned, it wants the segment
to be the originally requested size... only mmap uses the aligned
size later on.
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