@@ -8039,6 +8039,9 @@ static int __io_sqe_files_update(struct io_ring_ctx *ctx,
err = -EFAULT;
break;
}
+ if (fd == IORING_REGISTER_FILES_SKIP)
+ continue;
+
i = array_index_nospec(up->offset + done, ctx->nr_user_files);
table = &ctx->file_data->table[i >> IORING_FILE_TABLE_SHIFT];
index = i & IORING_FILE_TABLE_MASK;
@@ -298,6 +298,13 @@ struct io_uring_rsrc_update {
__aligned_u64 data;
};
+/*
+ * fd value in *((__s32 *)io_uring_rsrc_update->data)
+ */
+
+/* Skip updating fd indexes set to this value */
+#define IORING_REGISTER_FILES_SKIP (-2)
+
#define IO_URING_OP_SUPPORTED (1U << 0)
struct io_uring_probe_op {
This patch adds support for skipping a file descriptor when using IORING_REGISTER_FILES_UPDATE. __io_sqe_files_update will skip fds set to IORING_REGISTER_FILES_SKIP. IORING_REGISTER_FILES_SKIP is inturn added as a #define in io_uring.h Signed-off-by: noah <goldstein.w.n@gmail.com> --- Supporting documentation and tests in liburing can be added in PR284 (https://github.com/axboe/liburing/pull/284) if this patch is applied. fs/io_uring.c | 3 +++ include/uapi/linux/io_uring.h | 7 +++++++ 2 files changed, 10 insertions(+)