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lightnvm: pblk: remove unused function 

Removed unused function in pblk-rb.c

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Javier González 2018-10-09 13:12:08 +02:00 committed by Jens Axboe
parent 44cdbdc657
commit dde4aac20b
2 changed files with 0 additions and 28 deletions
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26
drivers/lightnvm/pblk-rb.c
View File

@ -729,32 +729,6 @@ unsigned int pblk_rb_flush_point_count(struct pblk_rb *rb)
return (submitted < to_flush) ? (to_flush - submitted) : 0; return (submitted < to_flush) ? (to_flush - submitted) : 0;
} }
/*
* Scan from the current position of the sync pointer to find the entry that
* corresponds to the given ppa. This is necessary since write requests can be
* completed out of order. The assumption is that the ppa is close to the sync
* pointer thus the search will not take long.
*
* The caller of this function must guarantee that the sync pointer will no
* reach the entry while it is using the metadata associated with it. With this
* assumption in mind, there is no need to take the sync lock.
*/
struct pblk_rb_entry *pblk_rb_sync_scan_entry(struct pblk_rb *rb,
struct ppa_addr *ppa)
{
unsigned int sync, subm, count;
unsigned int i;
sync = READ_ONCE(rb->sync);
subm = READ_ONCE(rb->subm);
count = pblk_rb_ring_count(subm, sync, rb->nr_entries);
for (i = 0; i < count; i++)
sync = (sync + 1) & (rb->nr_entries - 1);
return NULL;
}
int pblk_rb_tear_down_check(struct pblk_rb *rb) int pblk_rb_tear_down_check(struct pblk_rb *rb)
{ {
struct pblk_rb_entry *entry; struct pblk_rb_entry *entry;

2
drivers/lightnvm/pblk.h
View File

@ -760,8 +760,6 @@ unsigned int pblk_rb_read_commit(struct pblk_rb *rb, unsigned int entries);
unsigned int pblk_rb_sync_init(struct pblk_rb *rb, unsigned long *flags); unsigned int pblk_rb_sync_init(struct pblk_rb *rb, unsigned long *flags);
unsigned int pblk_rb_sync_advance(struct pblk_rb *rb, unsigned int nr_entries); unsigned int pblk_rb_sync_advance(struct pblk_rb *rb, unsigned int nr_entries);
struct pblk_rb_entry *pblk_rb_sync_scan_entry(struct pblk_rb *rb,
struct ppa_addr *ppa);
void pblk_rb_sync_end(struct pblk_rb *rb, unsigned long *flags); void pblk_rb_sync_end(struct pblk_rb *rb, unsigned long *flags);
unsigned int pblk_rb_flush_point_count(struct pblk_rb *rb); unsigned int pblk_rb_flush_point_count(struct pblk_rb *rb);