diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/io_uring_types.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h index 6d3ee71bd832..841579dcdae9 100644 --- a/include/linux/io_uring_types.h +++ b/include/linux/io_uring_types.h @@ -416,6 +416,13 @@ struct io_ring_ctx { unsigned evfd_last_cq_tail; /* + * Protection for resize vs mmap races - both the mmap and resize + * side will need to grab this lock, to prevent either side from + * being run concurrently with the other. + */ + struct mutex resize_lock; + + /* * If IORING_SETUP_NO_MMAP is used, then the below holds * the gup'ed pages for the two rings, and the sqes. */ |