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io_uring: add generic rsrc update with tags

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Add IORING_REGISTER_RSRC_UPDATE, which also supports passing in rsrc
tags. Implement it for registered files.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d4dc66df204212f64835ffca2c4eb5e8363f2f05.1619356238.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov
2021-04-25 14:32:22 +01:00
committed by Jens Axboe
parent 792e35824b
commit c3bdad0271
2 changed files with 57 additions and 17 deletions
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22
include/uapi/linux/io_uring.h
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@@ -299,6 +299,7 @@ enum {
IORING_REGISTER_RESTRICTIONS = 11,
IORING_REGISTER_ENABLE_RINGS = 12,
IORING_REGISTER_RSRC = 13,
IORING_REGISTER_RSRC_UPDATE = 14,
/* this goes last */
IORING_REGISTER_LAST
@@ -311,12 +312,6 @@ struct io_uring_files_update {
__aligned_u64 /* __s32 * */ fds;
};
struct io_uring_rsrc_update {
__u32 offset;
__u32 resv;
__aligned_u64 data;
};
enum {
IORING_RSRC_FILE = 0,
};
@@ -328,6 +323,21 @@ struct io_uring_rsrc_register {
__aligned_u64 tags;
};
struct io_uring_rsrc_update {
__u32 offset;
__u32 resv;
__aligned_u64 data;
};
struct io_uring_rsrc_update2 {
__u32 offset;
__u32 resv;
__aligned_u64 data;
__aligned_u64 tags;
__u32 type;
__u32 nr;
};
/* Skip updating fd indexes set to this value in the fd table */
#define IORING_REGISTER_FILES_SKIP (-2)