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Searched refs:prison (Results 1 - 4 of 4) sorted by relevance

/linux-4.4.14/drivers/md/
H A D	dm-bio-prison.c	8 #include "dm-bio-prison.h" 35 struct dm_bio_prison prison = kmalloc(sizeof(prison), GFP_KERNEL); dm_bio_prison_create() local 37 if (!prison) dm_bio_prison_create() 40 spin_lock_init(&prison->lock); dm_bio_prison_create() 42 prison->cell_pool = mempool_create_slab_pool(MIN_CELLS, _cell_cache); dm_bio_prison_create() 43 if (!prison->cell_pool) { dm_bio_prison_create() 44 kfree(prison); dm_bio_prison_create() 48 prison->cells = RB_ROOT; dm_bio_prison_create() 50 return prison; dm_bio_prison_create() 54 void dm_bio_prison_destroy(struct dm_bio_prison prison) dm_bio_prison_destroy() argument 56 mempool_destroy(prison->cell_pool); dm_bio_prison_destroy() 57 kfree(prison); dm_bio_prison_destroy() 61 struct dm_bio_prison_cell dm_bio_prison_alloc_cell(struct dm_bio_prison prison, gfp_t gfp) dm_bio_prison_alloc_cell() argument 63 return mempool_alloc(prison->cell_pool, gfp); dm_bio_prison_alloc_cell() 67 void dm_bio_prison_free_cell(struct dm_bio_prison prison, dm_bio_prison_free_cell() argument 70 mempool_free(cell, prison->cell_pool); dm_bio_prison_free_cell() 107 static int __bio_detain(struct dm_bio_prison prison, __bio_detain() argument 114 struct rb_node new = &prison->cells.rb_node, parent = NULL; __bio_detain() 139 rb_insert_color(&cell_prealloc->node, &prison->cells); __bio_detain() 144 static int bio_detain(struct dm_bio_prison prison, bio_detain() argument 153 spin_lock_irqsave(&prison->lock, flags); bio_detain() 154 r = __bio_detain(prison, key, inmate, cell_prealloc, cell_result); bio_detain() 155 spin_unlock_irqrestore(&prison->lock, flags); bio_detain() 160 int dm_bio_detain(struct dm_bio_prison prison, dm_bio_detain() argument 166 return bio_detain(prison, key, inmate, cell_prealloc, cell_result); dm_bio_detain() 170 int dm_get_cell(struct dm_bio_prison prison, dm_get_cell() argument 175 return bio_detain(prison, key, NULL, cell_prealloc, cell_result); dm_get_cell() 182 static void __cell_release(struct dm_bio_prison prison, __cell_release() argument 186 rb_erase(&cell->node, &prison->cells); __cell_release() 195 void dm_cell_release(struct dm_bio_prison prison, dm_cell_release() argument 201 spin_lock_irqsave(&prison->lock, flags); dm_cell_release() 202 __cell_release(prison, cell, bios); dm_cell_release() 203 spin_unlock_irqrestore(&prison->lock, flags); dm_cell_release() 210 static void __cell_release_no_holder(struct dm_bio_prison prison, __cell_release_no_holder() argument 214 rb_erase(&cell->node, &prison->cells); __cell_release_no_holder() 218 void dm_cell_release_no_holder(struct dm_bio_prison prison, dm_cell_release_no_holder() argument 224 spin_lock_irqsave(&prison->lock, flags); dm_cell_release_no_holder() 225 __cell_release_no_holder(prison, cell, inmates); dm_cell_release_no_holder() 226 spin_unlock_irqrestore(&prison->lock, flags); dm_cell_release_no_holder() 230 void dm_cell_error(struct dm_bio_prison prison, dm_cell_error() argument 237 dm_cell_release(prison, cell, &bios); dm_cell_error() 246 void dm_cell_visit_release(struct dm_bio_prison prison, dm_cell_visit_release() argument 253 spin_lock_irqsave(&prison->lock, flags); dm_cell_visit_release() 255 rb_erase(&cell->node, &prison->cells); dm_cell_visit_release() 256 spin_unlock_irqrestore(&prison->lock, flags); dm_cell_visit_release() 260 static int __promote_or_release(struct dm_bio_prison prison, __promote_or_release() argument 264 rb_erase(&cell->node, &prison->cells); __promote_or_release() 272 int dm_cell_promote_or_release(struct dm_bio_prison *prison, dm_cell_promote_or_release() argument 278 spin_lock_irqsave(&prison->lock, flags); dm_cell_promote_or_release() 279 r = __promote_or_release(prison, cell); dm_cell_promote_or_release() 280 spin_unlock_irqrestore(&prison->lock, flags); dm_cell_promote_or_release() 422 MODULE_DESCRIPTION(DM_NAME " bio prison");
H A D	dm-bio-prison.h	19 * Sometimes we can't deal with a bio straight away. We put them in prison 50 void dm_bio_prison_destroy(struct dm_bio_prison prison); 54 Eventually all bio prison clients should manage their own cell memory. 59 struct dm_bio_prison_cell dm_bio_prison_alloc_cell(struct dm_bio_prison prison, 61 void dm_bio_prison_free_cell(struct dm_bio_prison prison, 70 int dm_get_cell(struct dm_bio_prison prison, 81 int dm_bio_detain(struct dm_bio_prison prison, 87 void dm_cell_release(struct dm_bio_prison prison, 90 void dm_cell_release_no_holder(struct dm_bio_prison prison, 93 void dm_cell_error(struct dm_bio_prison prison, 100 void dm_cell_visit_release(struct dm_bio_prison prison, 114 int dm_cell_promote_or_release(struct dm_bio_prison prison,
H A D	dm-cache-target.c	8 #include "dm-bio-prison.h" 306 struct dm_bio_prison prison; member in struct:cache 398 return dm_bio_prison_alloc_cell(cache->prison, GFP_NOWAIT); alloc_prison_cell() 403 dm_bio_prison_free_cell(cache->prison, cell); free_prison_cell() 537 r = dm_bio_detain(cache->prison, &key, bio, cell_prealloc, cell_result); bio_detain_range() 566 r = dm_get_cell(cache->prison, &key, cell_prealloc, cell_result); get_cell() 839 You must increment the deferred set whilst the prison cell is held. To 1082 dm_cell_release(cache->prison, cell, &cache->deferred_bios); __cell_defer() 1092 if (!holder && dm_cell_promote_or_release(cache->prison, cell)) { cell_defer() 1110 dm_cell_error(cache->prison, cell, err); cell_error_with_code() 1715 dm_cell_visit_release(cache->prison, inc_fn, &detail, cell); remap_cell_to_origin_clear_discard() 1749 dm_cell_visit_release(cache->prison, inc_fn, &detail, cell); remap_cell_to_cache_dirty() 2322 if (cache->prison) destroy() 2323 dm_bio_prison_destroy(cache->prison); destroy() 2913 cache->prison = dm_bio_prison_create(); cache_create() 2914 if (!cache->prison) { cache_create() 2915 *error = "could not create bio prison"; cache_create()
H A D	dm-thin.c	8 #include "dm-bio-prison.h" 239 struct dm_bio_prison prison; member in struct:pool 416 Allocate a cell from the prison's mempool. bio_detain() 419 cell_prealloc = dm_bio_prison_alloc_cell(pool->prison, GFP_NOIO); bio_detain() 421 r = dm_bio_detain(pool->prison, key, bio, cell_prealloc, cell_result); bio_detain() 427 dm_bio_prison_free_cell(pool->prison, cell_prealloc); bio_detain() 436 dm_cell_release(pool->prison, cell, bios); cell_release() 437 dm_bio_prison_free_cell(pool->prison, cell); cell_release() 445 dm_cell_visit_release(pool->prison, fn, context, cell); cell_visit_release() 446 dm_bio_prison_free_cell(pool->prison, cell); cell_visit_release() 453 dm_cell_release_no_holder(pool->prison, cell, bios); cell_release_no_holder() 454 dm_bio_prison_free_cell(pool->prison, cell); cell_release_no_holder() 460 dm_cell_error(pool->prison, cell, error_code); cell_error_with_code() 461 dm_bio_prison_free_cell(pool->prison, cell); cell_error_with_code() 875 * We can't issue the bios with the bio prison lock __inc_remap_and_issue_cell() 2750 dm_bio_prison_destroy(pool->prison); __pool_destroy() 2798 pool->prison = dm_bio_prison_create(); pool_create() 2799 if (!pool->prison) { pool_create() 2800 *error = "Error creating pool's bio prison"; pool_create() 2885 dm_bio_prison_destroy(pool->prison); pool_create()

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