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-rw-r--r--block/blk.h53
1 files changed, 0 insertions, 53 deletions
diff --git a/block/blk.h b/block/blk.h
index c4839abcfa27..09cee7024fb4 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -387,59 +387,6 @@ static inline void hd_free_part(struct hd_struct *part)
percpu_ref_exit(&part->ref);
}
-/*
- * Any access of part->nr_sects which is not protected by partition
- * bd_mutex or gendisk bdev bd_mutex, should be done using this
- * accessor function.
- *
- * Code written along the lines of i_size_read() and i_size_write().
- * CONFIG_PREEMPTION case optimizes the case of UP kernel with preemption
- * on.
- */
-static inline sector_t part_nr_sects_read(struct hd_struct *part)
-{
-#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
- sector_t nr_sects;
- unsigned seq;
- do {
- seq = read_seqcount_begin(&part->nr_sects_seq);
- nr_sects = part->nr_sects;
- } while (read_seqcount_retry(&part->nr_sects_seq, seq));
- return nr_sects;
-#elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPTION)
- sector_t nr_sects;
-
- preempt_disable();
- nr_sects = part->nr_sects;
- preempt_enable();
- return nr_sects;
-#else
- return part->nr_sects;
-#endif
-}
-
-/*
- * Should be called with mutex lock held (typically bd_mutex) of partition
- * to provide mutual exlusion among writers otherwise seqcount might be
- * left in wrong state leaving the readers spinning infinitely.
- */
-static inline void part_nr_sects_write(struct hd_struct *part, sector_t size)
-{
-#if BITS_PER_LONG==32 && defined(CONFIG_SMP)
- preempt_disable();
- write_seqcount_begin(&part->nr_sects_seq);
- part->nr_sects = size;
- write_seqcount_end(&part->nr_sects_seq);
- preempt_enable();
-#elif BITS_PER_LONG==32 && defined(CONFIG_PREEMPTION)
- preempt_disable();
- part->nr_sects = size;
- preempt_enable();
-#else
- part->nr_sects = size;
-#endif
-}
-
int bio_add_hw_page(struct request_queue *q, struct bio *bio,
struct page *page, unsigned int len, unsigned int offset,
unsigned int max_sectors, bool *same_page);