diff options
Diffstat (limited to 'drivers/md/raid5.h')
| -rw-r--r-- | drivers/md/raid5.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index c9590a8e1425..73c183398e38 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -264,7 +264,7 @@ struct stripe_head_state { int syncing, expanding, expanded, replacing; int locked, uptodate, to_read, to_write, failed, written; int to_fill, compute, req_compute, non_overwrite; - int injournal; + int injournal, just_cached; int failed_num[2]; int p_failed, q_failed; int dec_preread_active; @@ -368,6 +368,12 @@ enum { STRIPE_R5C_CACHING, /* the stripe is in caching phase * see more detail in the raid5-cache.c */ + STRIPE_R5C_PARTIAL_STRIPE, /* in r5c cache (to-be/being handled or + * in conf->r5c_partial_stripe_list) + */ + STRIPE_R5C_FULL_STRIPE, /* in r5c cache (to-be/being handled or + * in conf->r5c_full_stripe_list) + */ }; #define STRIPE_EXPAND_SYNC_FLAGS \ @@ -618,6 +624,12 @@ struct r5conf { */ atomic_t active_stripes; struct list_head inactive_list[NR_STRIPE_HASH_LOCKS]; + + atomic_t r5c_cached_full_stripes; + struct list_head r5c_full_stripe_list; + atomic_t r5c_cached_partial_stripes; + struct list_head r5c_partial_stripe_list; + atomic_t empty_inactive_list_nr; struct llist_head released_stripes; wait_queue_head_t wait_for_quiescent; @@ -739,4 +751,9 @@ r5c_try_caching_write(struct r5conf *conf, struct stripe_head *sh, extern void r5c_finish_stripe_write_out(struct r5conf *conf, struct stripe_head *sh, struct stripe_head_state *s); +extern void r5c_release_extra_page(struct stripe_head *sh); +extern void r5c_handle_cached_data_endio(struct r5conf *conf, + struct stripe_head *sh, int disks, struct bio_list *return_bi); +extern int r5c_cache_data(struct r5l_log *log, struct stripe_head *sh, + struct stripe_head_state *s); #endif |