static int __flush_dmap(struct dm_clone_metadata *cmd, struct dirty_map *dmap)
{
int r;
- unsigned long word, flags;
+ unsigned long word;
word = 0;
do {
return r;
/* Update the changed flag */
- spin_lock_irqsave(&cmd->bitmap_lock, flags);
+ spin_lock_irq(&cmd->bitmap_lock);
dmap->changed = 0;
- spin_unlock_irqrestore(&cmd->bitmap_lock, flags);
+ spin_unlock_irq(&cmd->bitmap_lock);
return 0;
}
int dm_clone_metadata_commit(struct dm_clone_metadata *cmd)
{
int r = -EPERM;
- unsigned long flags;
struct dirty_map *dmap, *next_dmap;
down_write(&cmd->lock);
}
/* Swap dirty bitmaps */
- spin_lock_irqsave(&cmd->bitmap_lock, flags);
+ spin_lock_irq(&cmd->bitmap_lock);
cmd->current_dmap = next_dmap;
- spin_unlock_irqrestore(&cmd->bitmap_lock, flags);
+ spin_unlock_irq(&cmd->bitmap_lock);
/*
* No one is accessing the old dirty bitmap anymore, so we can flush
{
int r = 0;
struct dirty_map *dmap;
- unsigned long word, region_nr, flags;
+ unsigned long word, region_nr;
- spin_lock_irqsave(&cmd->bitmap_lock, flags);
+ spin_lock_irq(&cmd->bitmap_lock);
if (cmd->read_only) {
r = -EPERM;
}
}
out:
- spin_unlock_irqrestore(&cmd->bitmap_lock, flags);
+ spin_unlock_irq(&cmd->bitmap_lock);
return r;
}
void dm_clone_metadata_set_read_only(struct dm_clone_metadata *cmd)
{
- unsigned long flags;
-
down_write(&cmd->lock);
- spin_lock_irqsave(&cmd->bitmap_lock, flags);
+ spin_lock_irq(&cmd->bitmap_lock);
cmd->read_only = 1;
- spin_unlock_irqrestore(&cmd->bitmap_lock, flags);
+ spin_unlock_irq(&cmd->bitmap_lock);
if (!cmd->fail_io)
dm_bm_set_read_only(cmd->bm);
void dm_clone_metadata_set_read_write(struct dm_clone_metadata *cmd)
{
- unsigned long flags;
-
down_write(&cmd->lock);
- spin_lock_irqsave(&cmd->bitmap_lock, flags);
+ spin_lock_irq(&cmd->bitmap_lock);
cmd->read_only = 0;
- spin_unlock_irqrestore(&cmd->bitmap_lock, flags);
+ spin_unlock_irq(&cmd->bitmap_lock);
if (!cmd->fail_io)
dm_bm_set_read_write(cmd->bm);
*/
static void issue_bio(struct clone *clone, struct bio *bio)
{
- unsigned long flags;
-
if (!bio_triggers_commit(clone, bio)) {
generic_make_request(bio);
return;
* Batch together any bios that trigger commits and then issue a single
* commit for them in process_deferred_flush_bios().
*/
- spin_lock_irqsave(&clone->lock, flags);
+ spin_lock_irq(&clone->lock);
bio_list_add(&clone->deferred_flush_bios, bio);
- spin_unlock_irqrestore(&clone->lock, flags);
+ spin_unlock_irq(&clone->lock);
wake_worker(clone);
}
static void process_discard_bio(struct clone *clone, struct bio *bio)
{
- unsigned long rs, re, flags;
+ unsigned long rs, re;
bio_region_range(clone, bio, &rs, &re);
BUG_ON(re > clone->nr_regions);
/*
* Defer discard processing.
*/
- spin_lock_irqsave(&clone->lock, flags);
+ spin_lock_irq(&clone->lock);
bio_list_add(&clone->deferred_discard_bios, bio);
- spin_unlock_irqrestore(&clone->lock, flags);
+ spin_unlock_irq(&clone->lock);
wake_worker(clone);
}
int r = -EPERM;
struct bio *bio;
struct blk_plug plug;
- unsigned long rs, re, flags;
+ unsigned long rs, re;
struct bio_list discards = BIO_EMPTY_LIST;
- spin_lock_irqsave(&clone->lock, flags);
+ spin_lock_irq(&clone->lock);
bio_list_merge(&discards, &clone->deferred_discard_bios);
bio_list_init(&clone->deferred_discard_bios);
- spin_unlock_irqrestore(&clone->lock, flags);
+ spin_unlock_irq(&clone->lock);
if (bio_list_empty(&discards))
return;
static void process_deferred_bios(struct clone *clone)
{
- unsigned long flags;
struct bio_list bios = BIO_EMPTY_LIST;
- spin_lock_irqsave(&clone->lock, flags);
+ spin_lock_irq(&clone->lock);
bio_list_merge(&bios, &clone->deferred_bios);
bio_list_init(&clone->deferred_bios);
- spin_unlock_irqrestore(&clone->lock, flags);
+ spin_unlock_irq(&clone->lock);
if (bio_list_empty(&bios))
return;
static void process_deferred_flush_bios(struct clone *clone)
{
struct bio *bio;
- unsigned long flags;
struct bio_list bios = BIO_EMPTY_LIST;
struct bio_list bio_completions = BIO_EMPTY_LIST;
* If there are any deferred flush bios, we must commit the metadata
* before issuing them or signaling their completion.
*/
- spin_lock_irqsave(&clone->lock, flags);
+ spin_lock_irq(&clone->lock);
bio_list_merge(&bios, &clone->deferred_flush_bios);
bio_list_init(&clone->deferred_flush_bios);
bio_list_merge(&bio_completions, &clone->deferred_flush_completions);
bio_list_init(&clone->deferred_flush_completions);
- spin_unlock_irqrestore(&clone->lock, flags);
+ spin_unlock_irq(&clone->lock);
if (bio_list_empty(&bios) && bio_list_empty(&bio_completions) &&
!(dm_clone_changed_this_transaction(clone->cmd) && need_commit_due_to_time(clone)))