diff options
| -rw-r--r-- | io_uring/register.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/io_uring/register.c b/io_uring/register.c index 5f3eb018fb32..837324bf0223 100644 --- a/io_uring/register.c +++ b/io_uring/register.c @@ -178,9 +178,17 @@ static __cold int io_register_restrictions(struct io_ring_ctx *ctx, return -EBUSY; ret = io_parse_restrictions(arg, nr_args, &ctx->restrictions); - /* Reset all restrictions if an error happened */ + /* + * Reset all restrictions if an error happened, but retain any COW'ed + * settings. + */ if (ret < 0) { + struct io_bpf_filters *bpf = ctx->restrictions.bpf_filters; + bool cowed = ctx->restrictions.bpf_filters_cow; + memset(&ctx->restrictions, 0, sizeof(ctx->restrictions)); + ctx->restrictions.bpf_filters = bpf; + ctx->restrictions.bpf_filters_cow = cowed; return ret; } if (ctx->restrictions.op_registered) |