diff options
Diffstat (limited to '')
| -rw-r--r-- | io_uring/io_uring.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index f353822436c4..c596ffd92a0a 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -954,14 +954,27 @@ enum { }; /* - * NOTE! Each of the iocb union members has the file pointer - * as the first entry in their struct definition. So you can - * access the file pointer through any of the sub-structs, - * or directly as just 'file' in this struct. + * Each request type overlays its private data structure on top of this one. + * They must not exceed this one in size. */ +struct io_cmd_data { + struct file *file; + /* each command gets 56 bytes of data */ + __u8 data[56]; +}; + +#define io_kiocb_to_cmd(req) ((void *) &(req)->cmd) + struct io_kiocb { union { + /* + * NOTE! Each of the io_kiocb union members has the file pointer + * as the first entry in their struct definition. So you can + * access the file pointer through any of the sub-structs, + * or directly as just 'file' in this struct. + */ struct file *file; + struct io_cmd_data cmd; struct io_rw rw; struct io_poll_iocb poll; struct io_poll_update poll_update; |