From: Nick Piggin Date: Tue, 16 Oct 2007 08:24:42 +0000 (-0700) Subject: mm: clarify __add_to_swap_cache locking X-Git-Tag: v2.6.24-rc1~1223 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b55ed816235cf41c29159d22a4cdeec7deb5821c;p=pandora-kernel.git mm: clarify __add_to_swap_cache locking __add_to_swap_cache unconditionally sets the page locked, which can be a bit alarming to the unsuspecting reader: in the code paths where the page is visible to other CPUs, the page should be (and is) already locked. Instead, just add a check to ensure the page is locked here, and teach the one path relying on the old behaviour to call SetPageLocked itself. [hugh@veritas.com: locking fix] Signed-off-by: Nick Piggin Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed