tree 264cb58ffbadb340ce713420a44c00d59fda4e7a
parent b0825ee3a8c570df4873ee397fa453e67fdad5d7
author Michal Hocko <mhocko@suse.cz> 1308175691 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1308193439 -0700

fs/exec.c: use BUILD_BUG_ON for VM_STACK_FLAGS & VM_STACK_INCOMPLETE_SETUP

Commit a8bef8ff6ea1 ("mm: migration: avoid race between shift_arg_pages()
and rmap_walk() during migration by not migrating temporary stacks")
introduced a BUG_ON() to ensure that VM_STACK_FLAGS and
VM_STACK_INCOMPLETE_SETUP do not overlap.  The check is a compile time
one, so BUILD_BUG_ON is more appropriate.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>