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    Subject[PATCH v21 039/100] c/r: introduce method '->checkpoint()' in struct vm_operations_struct
    Date
    Changelog[v17]
    - Forward-declare 'ckpt_ctx et-al, don't use checkpoint_types.h

    Cc: linux-fsdevel@vger.kernel.org
    Cc: linux-mm@kvack.org
    Signed-off-by: Oren Laadan <orenl@cs.columbia.edu>
    Acked-by: Serge E. Hallyn <serue@us.ibm.com>
    Tested-by: Serge E. Hallyn <serue@us.ibm.com>
    ---
    include/linux/mm.h | 4 ++++
    1 files changed, 4 insertions(+), 0 deletions(-)

    diff --git a/include/linux/mm.h b/include/linux/mm.h
    index 462acaf..4dfaf69 100644
    --- a/include/linux/mm.h
    +++ b/include/linux/mm.h
    @@ -20,6 +20,7 @@ struct file_ra_state;
    struct user_struct;
    struct writeback_control;
    struct rlimit;
    +struct ckpt_ctx;

    #ifndef CONFIG_DISCONTIGMEM /* Don't use mapnrs, do it properly */
    extern unsigned long max_mapnr;
    @@ -221,6 +222,9 @@ struct vm_operations_struct {
    int (*migrate)(struct vm_area_struct *vma, const nodemask_t *from,
    const nodemask_t *to, unsigned long flags);
    #endif
    +#ifdef CONFIG_CHECKPOINT
    + int (*checkpoint)(struct ckpt_ctx *ctx, struct vm_area_struct *vma);
    +#endif
    };

    struct mmu_gather;
    --
    1.6.3.3


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