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authorNick Piggin <npiggin@suse.de>2007-07-15 23:38:12 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:35 -0700
commit45426812d6b601430d560cb6049757b5b0bc71c4 (patch)
tree64c8439a53f4ca402a9d7deb2a455aa0de08c8ea /fs/drop_caches.c
parentf96efd585b8d847181f81bf16721f96ded18d9fe (diff)
downloadlinux-45426812d6b601430d560cb6049757b5b0bc71c4.tar.gz
mm: debug check for the fault vs invalidate race
Add a bugcheck for Andrea's pagefault vs invalidate race. This is triggerable for both linear and nonlinear pages with a userspace test harness (using direct IO and truncate, respectively). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/drop_caches.c')
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