tree fbfcc2e0ffc4a82bd9f481e1a746bfb49955800f
parent 4d6c13f87db12ae1ce35ea6a15688ac72419b133
author Thomas Gleixner <tglx@linutronix.de> 1246387285 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1246413360 -0700

dmapools: protect page_list walk in show_pools()

show_pools() walks the page_list of a pool w/o protection against the list
modifications in alloc/free.  Take pool->lock to avoid stomping into
nirvana.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>