diff options
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index 7c30e2ac8ebc..6c2749d122ab 100644 --- a/block/blk.h +++ b/block/blk.h @@ -4,6 +4,7 @@ #include <linux/blk-crypto.h> #include <linux/memblock.h> /* for max_pfn/max_low_pfn */ +#include <linux/sched/sysctl.h> #include <linux/timekeeping.h> #include <xen/xen.h> #include "blk-crypto-internal.h" @@ -71,6 +72,18 @@ static inline int bio_queue_enter(struct bio *bio) return __bio_queue_enter(q, bio); } +static inline void blk_wait_io(struct completion *done) +{ + /* Prevent hang_check timer from firing at us during very long I/O */ + unsigned long timeout = sysctl_hung_task_timeout_secs * HZ / 2; + + if (timeout) + while (!wait_for_completion_io_timeout(done, timeout)) + ; + else + wait_for_completion_io(done); +} + #define BIO_INLINE_VECS 4 struct bio_vec *bvec_alloc(mempool_t *pool, unsigned short *nr_vecs, gfp_t gfp_mask); |