On 2017/7/14 下午4:14, Ming Lei wrote:
> No function change, just move 'struct resync_pages' and related
> helpers into raid1-10.c
Please give me a hint, I don't find where raid1-10.c is ....
Thanks.
Coly
>
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
> ---
> drivers/md/md.h | 53 -------------------------------------------
> drivers/md/raid1-10.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
> drivers/md/raid1.c | 9 --------
> drivers/md/raid10.c | 9 --------
> 4 files changed, 62 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/md/md.h b/drivers/md/md.h
> index 2c780aa8d07f..004a21c214e8 100644
> --- a/drivers/md/md.h
> +++ b/drivers/md/md.h
> @@ -729,57 +729,4 @@ static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio
> !bdev_get_queue(bio->bi_bdev)->limits.max_write_zeroes_sectors)
> mddev->queue->limits.max_write_zeroes_sectors = 0;
> }
> -
> -/* Maximum size of each resync request */
> -#define RESYNC_BLOCK_SIZE (64*1024)
> -#define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
> -
> -/* for managing resync I/O pages */
> -struct resync_pages {
> - void *raid_bio;
> - struct page *pages[RESYNC_PAGES];
> -};
> -
> -static inline int resync_alloc_pages(struct resync_pages *rp,
> - gfp_t gfp_flags)
> -{
> - int i;
> -
> - for (i = 0; i < RESYNC_PAGES; i++) {
> - rp->pages[i] = alloc_page(gfp_flags);
> - if (!rp->pages[i])
> - goto out_free;
> - }
> -
> - return 0;
> -
> -out_free:
> - while (--i >= 0)
> - put_page(rp->pages[i]);
> - return -ENOMEM;
> -}
> -
> -static inline void resync_free_pages(struct resync_pages *rp)
> -{
> - int i;
> -
> - for (i = 0; i < RESYNC_PAGES; i++)
> - put_page(rp->pages[i]);
> -}
> -
> -static inline void resync_get_all_pages(struct resync_pages *rp)
> -{
> - int i;
> -
> - for (i = 0; i < RESYNC_PAGES; i++)
> - get_page(rp->pages[i]);
> -}
> -
> -static inline struct page *resync_fetch_page(struct resync_pages *rp,
> - unsigned idx)
> -{
> - if (WARN_ON_ONCE(idx >= RESYNC_PAGES))
> - return NULL;
> - return rp->pages[idx];
> -}
> #endif /* _MD_MD_H */
> diff --git a/drivers/md/raid1-10.c b/drivers/md/raid1-10.c
> index 3adb5b9dc4b4..9f2670b45f31 100644
> --- a/drivers/md/raid1-10.c
> +++ b/drivers/md/raid1-10.c
> @@ -1,3 +1,65 @@
> +/* Maximum size of each resync request */
> +#define RESYNC_BLOCK_SIZE (64*1024)
> +#define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
> +
> +/* for managing resync I/O pages */
> +struct resync_pages {
> + void *raid_bio;
> + struct page *pages[RESYNC_PAGES];
> +};
> +
> +static inline int resync_alloc_pages(struct resync_pages *rp,
> + gfp_t gfp_flags)
> +{
> + int i;
> +
> + for (i = 0; i < RESYNC_PAGES; i++) {
> + rp->pages[i] = alloc_page(gfp_flags);
> + if (!rp->pages[i])
> + goto out_free;
> + }
> +
> + return 0;
> +
> +out_free:
> + while (--i >= 0)
> + put_page(rp->pages[i]);
> + return -ENOMEM;
> +}
> +
> +static inline void resync_free_pages(struct resync_pages *rp)
> +{
> + int i;
> +
> + for (i = 0; i < RESYNC_PAGES; i++)
> + put_page(rp->pages[i]);
> +}
> +
> +static inline void resync_get_all_pages(struct resync_pages *rp)
> +{
> + int i;
> +
> + for (i = 0; i < RESYNC_PAGES; i++)
> + get_page(rp->pages[i]);
> +}
> +
> +static inline struct page *resync_fetch_page(struct resync_pages *rp,
> + unsigned idx)
> +{
> + if (WARN_ON_ONCE(idx >= RESYNC_PAGES))
> + return NULL;
> + return rp->pages[idx];
> +}
> +
> +/*
> + * 'strct resync_pages' stores actual pages used for doing the resync
> + * IO, and it is per-bio, so make .bi_private points to it.
> + */
> +static inline struct resync_pages *get_resync_pages(struct bio *bio)
> +{
> + return bio->bi_private;
> +}
> +
> /* generally called after bio_reset() for reseting bvec */
> static void md_bio_reset_resync_pages(struct bio *bio, struct resync_pages *rp,
> int size)
> diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
> index fe86ab18961b..8387eb1540cd 100644
> --- a/drivers/md/raid1.c
> +++ b/drivers/md/raid1.c
> @@ -84,15 +84,6 @@ static void lower_barrier(struct r1conf *conf, sector_t sector_nr);
> #include "raid1-10.c"
>
> /*
> - * 'strct resync_pages' stores actual pages used for doing the resync
> - * IO, and it is per-bio, so make .bi_private points to it.
> - */
> -static inline struct resync_pages *get_resync_pages(struct bio *bio)
> -{
> - return bio->bi_private;
> -}
> -
> -/*
> * for resync bio, r1bio pointer can be retrieved from the per-bio
> * 'struct resync_pages'.
> */
> diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
> index 9952721e1cde..e2617d0f37dc 100644
> --- a/drivers/md/raid10.c
> +++ b/drivers/md/raid10.c
> @@ -113,15 +113,6 @@ static void end_reshape(struct r10conf *conf);
> #include "raid1-10.c"
>
> /*
> - * 'strct resync_pages' stores actual pages used for doing the resync
> - * IO, and it is per-bio, so make .bi_private points to it.
> - */
> -static inline struct resync_pages *get_resync_pages(struct bio *bio)
> -{
> - return bio->bi_private;
> -}
> -
> -/*
> * for resync bio, r10bio pointer can be retrieved from the per-bio
> * 'struct resync_pages'.
> */
>
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