• Chris Wilson's avatar
    lib/scatterlist: Hook sg_kmalloc into kmemleak (v2) · b94de9bb
    Chris Wilson authored
    
    
    kmemleak ignores page_alloc() and so believes the final sub-page
    allocation using the plain kmalloc is decoupled and lost. This leads to
    lots of false-positives with code that uses scatterlists.
    
    The options seem to be either to tell kmemleak that the kmalloc is not
    leaked or to notify kmemleak of the page allocations. The danger of the
    first approach is that we may hide a real leak, so choose the latter
    approach (of which I am not sure of the downsides).
    
    v2: Added comments on the suggestion of Catalin.
    Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
    Cc: Tejun Heo <tj@kernel.org>
    Cc: Jens Axboe <jaxboe@fusionio.com>
    Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
    b94de9bb
scatterlist.c 12.5 KB