Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-01 02:36:02 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

dm cache: Remove unused functions in bio-prison-v1

Browse Source 
dm_cache_size() and dm_cache_dump() are unused since commit
b29d4986d0 ("dm cache: significant rework to leverage dm-bio-prison-v2")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2024-10-03 02:15:49 +01:00 committed by Mikulas Patocka
parent 0153b7965d
commit 047b821ca3
2 changed files with 0 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
drivers/md/dm-bio-prison-v1.c
View File

@ -198,15 +198,6 @@ int dm_bio_detain(struct dm_bio_prison *prison,
}
EXPORT_SYMBOL_GPL(dm_bio_detain);
int dm_get_cell(struct dm_bio_prison *prison,
struct dm_cell_key *key,
struct dm_bio_prison_cell *cell_prealloc,
struct dm_bio_prison_cell **cell_result)
{
return bio_detain(prison, key, NULL, cell_prealloc, cell_result);
}
EXPORT_SYMBOL_GPL(dm_get_cell);
/*
* @inmates must have been initialised prior to this call
*/
@ -288,32 +279,6 @@ void dm_cell_visit_release(struct dm_bio_prison *prison,
}
EXPORT_SYMBOL_GPL(dm_cell_visit_release);
static int __promote_or_release(struct rb_root *root,
struct dm_bio_prison_cell *cell)
{
if (bio_list_empty(&cell->bios)) {
rb_erase(&cell->node, root);
return 1;
}
cell->holder = bio_list_pop(&cell->bios);
return 0;
}
int dm_cell_promote_or_release(struct dm_bio_prison *prison,
struct dm_bio_prison_cell *cell)
{
int r;
unsigned l = lock_nr(&cell->key, prison->num_locks);
spin_lock_irq(&prison->regions[l].lock);
r = __promote_or_release(&prison->regions[l].cell, cell);
spin_unlock_irq(&prison->regions[l].lock);
return r;
}
EXPORT_SYMBOL_GPL(dm_cell_promote_or_release);
/*----------------------------------------------------------------*/
#define DEFERRED_SET_SIZE 64

24
drivers/md/dm-bio-prison-v1.h
View File

@ -72,17 +72,6 @@ struct dm_bio_prison_cell *dm_bio_prison_alloc_cell(struct dm_bio_prison *prison
void dm_bio_prison_free_cell(struct dm_bio_prison *prison,
struct dm_bio_prison_cell *cell);
/*
* Creates, or retrieves a cell that overlaps the given key.
*
* Returns 1 if pre-existing cell returned, zero if new cell created using
* @cell_prealloc.
*/
int dm_get_cell(struct dm_bio_prison *prison,
struct dm_cell_key *key,
struct dm_bio_prison_cell *cell_prealloc,
struct dm_bio_prison_cell **cell_result);
/*
* Returns false if key is beyond BIO_PRISON_MAX_RANGE or spans a boundary.
*/
@ -117,19 +106,6 @@ void dm_cell_visit_release(struct dm_bio_prison *prison,
void (*visit_fn)(void *, struct dm_bio_prison_cell *),
void *context, struct dm_bio_prison_cell *cell);
/*
* Rather than always releasing the prisoners in a cell, the client may
* want to promote one of them to be the new holder. There is a race here
* though between releasing an empty cell, and other threads adding new
* inmates. So this function makes the decision with its lock held.
*
* This function can have two outcomes:
* i) An inmate is promoted to be the holder of the cell (return value of 0).
* ii) The cell has no inmate for promotion and is released (return value of 1).
*/
int dm_cell_promote_or_release(struct dm_bio_prison *prison,
struct dm_bio_prison_cell *cell);
/*----------------------------------------------------------------*/
/*