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dm: adjust structure members to improve alignment

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Eliminate most holes in DM data structures that were modified by
commit 6f1c819c21 ("dm: convert to bioset_init()/mempool_init()").
Also prevent structure members from unnecessarily spanning cache
lines.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mike Snitzer
2018-05-22 18:26:20 -04:00
parent b2b04e7e2d
commit 72d711c876
9 changed files with 85 additions and 79 deletions
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5
drivers/md/dm-thin.c
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@@ -240,9 +240,9 @@ struct pool {
struct dm_bio_prison *prison;
struct dm_kcopyd_client *copier;
struct work_struct worker;
struct workqueue_struct *wq;
struct throttle throttle;
struct work_struct worker;
struct delayed_work waker;
struct delayed_work no_space_timeout;
@@ -260,7 +260,6 @@ struct pool {
struct dm_deferred_set *all_io_ds;
struct dm_thin_new_mapping *next_mapping;
mempool_t mapping_pool;
process_bio_fn process_bio;
process_bio_fn process_discard;
@@ -273,6 +272,8 @@ struct pool {
process_mapping_fn process_prepared_discard_pt2;
struct dm_bio_prison_cell **cell_sort_array;
mempool_t mapping_pool;
};
static enum pool_mode get_pool_mode(struct pool *pool);