From: Glauber Costa Date: Fri, 3 Aug 2012 18:51:37 +0000 (+0400) Subject: slub: use free_page instead of put_page for freeing kmalloc allocation X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~8^2~2^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9b7f22623b5fa9cc189581dcdfb2ac605933bf4;p=pandora-kernel.git slub: use free_page instead of put_page for freeing kmalloc allocation When freeing objects, the slub allocator will most of the time free empty pages by calling __free_pages(). But high-order kmalloc will be diposed by means of put_page() instead. It makes no sense to call put_page() in kernel pages that are provided by the object allocators, so we shouldn't be doing this ourselves. Aside from the consistency change, we don't change the flow too much. put_page()'s would call its dtor function, which is __free_pages. We also already do all of the Compound page tests ourselves, and the Mlock test we lose don't really matter. Signed-off-by: Glauber Costa Acked-by: Christoph Lameter CC: David Rientjes CC: Pekka Enberg Signed-off-by: Pekka Enberg --- Reading git-diff-tree failed