diff options
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index aa16e524dc35..b5d1f0fc6547 100644 --- a/block/blk.h +++ b/block/blk.h @@ -420,9 +420,11 @@ static inline sector_t part_nr_sects_read(struct hd_struct *part) 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; |