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dm bufio: move dm_bufio_client members to avoid spanning cachelines

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Movement also consolidates holes in dm_bufio_client struct. But the
overall size of the struct isn't changed.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
This commit is contained in:
Mike Snitzer 2023-03-21 12:06:38 -04:00
parent 791188065b
commit 530f683ddc
1 changed files with 13 additions and 11 deletions
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24
drivers/md/dm-bufio.c
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@ -936,13 +936,16 @@ static void cache_remove_range(struct dm_buffer_cache *bc,
* context.
*/
struct dm_bufio_client {
struct mutex lock;
spinlock_t spinlock;
bool no_sleep;
struct block_device *bdev;
unsigned int block_size;
s8 sectors_per_block_bits;
bool no_sleep;
struct mutex lock;
spinlock_t spinlock;
int async_write_error;
void (*alloc_callback)(struct dm_buffer *buf);
void (*write_callback)(struct dm_buffer *buf);
struct kmem_cache *slab_buffer;
@ -954,23 +957,22 @@ struct dm_bufio_client {
unsigned int minimum_buffers;
struct dm_buffer_cache cache;
wait_queue_head_t free_buffer_wait;
sector_t start;
int async_write_error;
struct list_head client_list;
struct shrinker shrinker;
struct work_struct shrink_work;
atomic_long_t need_shrink;
wait_queue_head_t free_buffer_wait;
struct list_head client_list;
/*
* Used by global_cleanup to sort the clients list.
*/
unsigned long oldest_buffer;
struct dm_buffer_cache cache;
};
static DEFINE_STATIC_KEY_FALSE(no_sleep_enabled);