FLAT: Don't attempt to expand the userspace stack to fill the space allocated
authorDavid Howells <dhowells@redhat.com>
Thu, 8 Jan 2009 12:04:47 +0000 (12:04 +0000)
committerDavid Howells <dhowells@redhat.com>
Thu, 8 Jan 2009 12:04:47 +0000 (12:04 +0000)
commit0f3e442a403a344a5d0a49af9ecd7632b7e7343a
tree6d9557c9b058e04d9afc3ea7032bc155ff79b97e
parentf4bbf51050a1e1dd485e9cd89eef4619a7453d71
FLAT: Don't attempt to expand the userspace stack to fill the space allocated

Stop the FLAT binfmt from attempting to expand the userspace stack and brk
segments to fill the space actually allocated for it.  The space allocated may
be rounded up by mmap(), and may be wasted.

However, finding out how much space we actually obtained uses the contentious
kobjsize() function which we'd like to get rid of as it doesn't necessarily
work for all slab allocators.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
fs/binfmt_flat.c