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Enable adding core to detached cache instance

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Instead of trying to access properties of potenially unavaliable cache device
use properties saved in cache priv

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@huawei.com>
This commit is contained in:
Michal Mielewczyk 2023-10-11 13:06:44 +02:00 committed by Rafal Stefanowski
parent cef13315d0
commit bb8fc64ed5
1 changed files with 15 additions and 28 deletions
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43
modules/cas_cache/volume/vol_block_dev_top.c
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@ -35,35 +35,29 @@ static void blkdev_set_exported_object_flush_fua(ocf_core_t core)
{
ocf_cache_t cache = ocf_core_get_cache(core);
ocf_volume_t core_vol = ocf_core_get_volume(core);
ocf_volume_t cache_vol = ocf_cache_get_volume(cache);
struct bd_object *bd_core_vol, *bd_cache_vol;
struct request_queue *core_q, *exp_q, *cache_q;
struct bd_object *bd_core_vol;
struct request_queue *core_q, *exp_q;
bool flush, fua;
BUG_ON(!cache_vol);
struct cache_priv *cache_priv = ocf_cache_get_priv(cache);
bd_core_vol = bd_object(core_vol);
bd_cache_vol = bd_object(cache_vol);
core_q = cas_disk_get_queue(bd_core_vol->dsk);
exp_q = cas_exp_obj_get_queue(bd_core_vol->dsk);
cache_q = cas_disk_get_queue(bd_cache_vol->dsk);
flush = (CAS_CHECK_QUEUE_FLUSH(core_q) || CAS_CHECK_QUEUE_FLUSH(cache_q));
fua = (CAS_CHECK_QUEUE_FUA(core_q) || CAS_CHECK_QUEUE_FUA(cache_q));
flush = (CAS_CHECK_QUEUE_FLUSH(core_q) ||
cache_priv->device_properties.flush);
fua = (CAS_CHECK_QUEUE_FUA(core_q) || cache_priv->device_properties.fua);
cas_set_queue_flush_fua(exp_q, flush, fua);
}
static void blkdev_set_discard_properties(ocf_cache_t cache,
struct request_queue *exp_q, struct block_device *cache_bd,
struct block_device *core_bd, sector_t core_sectors)
struct request_queue *exp_q, struct block_device *core_bd,
sector_t core_sectors)
{
struct request_queue *core_q;
struct request_queue *cache_q;
core_q = bdev_get_queue(core_bd);
cache_q = bdev_get_queue(cache_bd);
cas_set_discard_flag(exp_q);
@ -91,38 +85,32 @@ static int blkdev_core_set_geometry(struct cas_disk *dsk, void *private)
ocf_core_t core;
ocf_cache_t cache;
ocf_volume_t core_vol;
ocf_volume_t cache_vol;
struct bd_object *bd_cache_vol;
struct request_queue *core_q, *cache_q, *exp_q;
struct block_device *core_bd, *cache_bd;
struct request_queue *core_q, *exp_q;
struct block_device *core_bd;
sector_t sectors;
const char *path;
struct cache_priv *cache_priv;
BUG_ON(!private);
core = private;
cache = ocf_core_get_cache(core);
core_vol = ocf_core_get_volume(core);
cache_vol = ocf_cache_get_volume(cache);
BUG_ON(!cache_vol);
cache_priv = ocf_cache_get_priv(cache);
bd_cache_vol = bd_object(cache_vol);
path = ocf_volume_get_uuid(core_vol)->data;
core_bd = cas_disk_get_blkdev(dsk);
BUG_ON(!core_bd);
cache_bd = cas_disk_get_blkdev(bd_cache_vol->dsk);
BUG_ON(!cache_bd);
core_q = cas_bdev_whole(core_bd)->bd_disk->queue;
cache_q = cache_bd->bd_disk->queue;
exp_q = cas_exp_obj_get_queue(dsk);
sectors = ocf_volume_get_length(core_vol) >> SECTOR_SHIFT;
set_capacity(cas_exp_obj_get_gendisk(dsk), sectors);
cas_copy_queue_limits(exp_q, &cache_q->limits, core_q);
cas_copy_queue_limits(exp_q, &cache_priv->device_properties.queue_limits,
core_q);
if (exp_q->limits.logical_block_size >
core_q->limits.logical_block_size) {
@ -139,8 +127,7 @@ static int blkdev_core_set_geometry(struct cas_disk *dsk, void *private)
blkdev_set_exported_object_flush_fua(core);
blkdev_set_discard_properties(cache, exp_q, cache_bd, core_bd,
sectors);
blkdev_set_discard_properties(cache, exp_q, core_bd, sectors);
exp_q->queue_flags |= (1 << QUEUE_FLAG_NONROT);