From: Linus Torvalds Date: Wed, 20 Nov 2013 22:41:47 +0000 (-0800) Subject: Revert "mm: create a separate slab for page->ptl allocation" X-Git-Tag: v3.13-rc1~25 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8b2e9b712f6139df9c754af0d67fecc4bbc88545;p=pandora-kernel.git Revert "mm: create a separate slab for page->ptl allocation" This reverts commit ea1e7ed33708c7a760419ff9ded0a6cb90586a50. Al points out that while the commit *does* actually create a separate slab for the page->ptl allocation, that slab is never actually used, and the code continues to use kmalloc/kfree. Damien Wyart points out that the original patch did have the conversion to use kmem_cache_alloc/free, so it got lost somewhere on its way to me. Revert the half-arsed attempt that didn't do anything. If we really do want the special slab (remember: this is all relevant just for debug builds, so it's not necessarily all that critical) we might as well redo the patch fully. Reported-by: Al Viro Acked-by: Andrew Morton Cc: Kirill A Shutemov Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed