diff options
| author | Jens Axboe <axboe@kernel.dk> | 2025-09-10 09:50:30 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-09-10 17:30:51 -0600 |
| commit | 9adc6669a60a7ec9e5a4b2b524791b0f4b7f3e66 (patch) | |
| tree | 8aa4390d5f430aa59e1bab0e6746f4afe48d0419 /io_uring/io_uring.c | |
| parent | 9f5f69d98efbcd4edb1c191cf91418688145e0d5 (diff) | |
io_uring: correct size of overflow CQE calculation
If a 32b CQE is required, don't double the size of the overflow struct,
just add the size of the io_uring_cqe addition that is needed. This
avoids allocating too much memory, as the io_overflow_cqe size includes
the list member required to queue them too.
Fixes: e26dca67fde1 ("io_uring: add support for IORING_SETUP_CQE_MIXED")
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 6d62f10416eb..1bfa124565f7 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -756,7 +756,7 @@ static struct io_overflow_cqe *io_alloc_ocqe(struct io_ring_ctx *ctx, if (cqe->flags & IORING_CQE_F_32 || ctx->flags & IORING_SETUP_CQE32) { is_cqe32 = true; - ocq_size <<= 1; + ocq_size += sizeof(struct io_uring_cqe); } ocqe = kzalloc(ocq_size, gfp | __GFP_ACCOUNT); |