diff options
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 311596d5dbc4..38e984d95e84 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -963,12 +963,13 @@ generic_make_request_checks(struct bio *bio) } /* - * Various block parts want %current->io_context and lazy ioc - * allocation ends up trading a lot of pain for a small amount of - * memory. Just allocate it upfront. This may fail and block - * layer knows how to live with it. + * Various block parts want %current->io_context, so allocate it up + * front rather than dealing with lots of pain to allocate it only + * where needed. This may fail and the block layer knows how to live + * with it. */ - create_io_context(GFP_ATOMIC, q->node); + if (unlikely(!current->io_context)) + create_task_io_context(current, GFP_ATOMIC, q->node); if (!blkcg_bio_issue_check(q, bio)) return false; |