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| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-04-18 14:06:40 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-18 19:38:26 -0600 |
| commit | fc7f3a8d3a78503c4f3e108155fb9a233dc307a4 (patch) | |
| tree | 9ee7f826dde1e54f3227e2b627a0cac5a997fed6 /io_uring | |
| parent | 29b26c556e7439b1370ac6a59fce83a9d1521de1 (diff) | |
| download | linux-stable-fc7f3a8d3a78503c4f3e108155fb9a233dc307a4.tar.gz linux-stable-fc7f3a8d3a78503c4f3e108155fb9a233dc307a4.tar.bz2 linux-stable-fc7f3a8d3a78503c4f3e108155fb9a233dc307a4.zip | |
io_uring/rsrc: devirtualise rsrc put callbacks
We only have two rsrc types, buffers and files, replace virtual
callbacks for putting resources down with a switch..case.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/02ca727bf8e5f7f820c2f404e95ae88c8f472930.1681822823.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/rsrc.c | 25 | ||||
| -rw-r--r-- | io_uring/rsrc.h | 2 |
2 files changed, 20 insertions, 7 deletions
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index 9378691d49f5..62988b3aa927 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -23,6 +23,8 @@ struct io_rsrc_update { u32 offset; }; +static void io_rsrc_buf_put(struct io_ring_ctx *ctx, struct io_rsrc_put *prsrc); +static void io_rsrc_file_put(struct io_ring_ctx *ctx, struct io_rsrc_put *prsrc); static int io_sqe_buffer_register(struct io_ring_ctx *ctx, struct iovec *iov, struct io_mapped_ubuf **pimu, struct page **last_hpage); @@ -147,7 +149,18 @@ static void io_rsrc_put_work(struct io_rsrc_node *node) if (prsrc->tag) io_post_aux_cqe(data->ctx, prsrc->tag, 0, 0); - data->do_put(data->ctx, prsrc); + + switch (data->rsrc_type) { + case IORING_RSRC_FILE: + io_rsrc_file_put(data->ctx, prsrc); + break; + case IORING_RSRC_BUFFER: + io_rsrc_buf_put(data->ctx, prsrc); + break; + default: + WARN_ON_ONCE(1); + break; + } } void io_rsrc_node_destroy(struct io_ring_ctx *ctx, struct io_rsrc_node *node) @@ -297,8 +310,8 @@ static __cold void **io_alloc_page_table(size_t size) return table; } -__cold static int io_rsrc_data_alloc(struct io_ring_ctx *ctx, - rsrc_put_fn *do_put, u64 __user *utags, +__cold static int io_rsrc_data_alloc(struct io_ring_ctx *ctx, int type, + u64 __user *utags, unsigned nr, struct io_rsrc_data **pdata) { struct io_rsrc_data *data; @@ -316,7 +329,7 @@ __cold static int io_rsrc_data_alloc(struct io_ring_ctx *ctx, data->nr = nr; data->ctx = ctx; - data->do_put = do_put; + data->rsrc_type = type; if (utags) { ret = -EFAULT; for (i = 0; i < nr; i++) { @@ -849,7 +862,7 @@ int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg, return -EMFILE; if (nr_args > rlimit(RLIMIT_NOFILE)) return -EMFILE; - ret = io_rsrc_data_alloc(ctx, io_rsrc_file_put, tags, nr_args, + ret = io_rsrc_data_alloc(ctx, IORING_RSRC_FILE, tags, nr_args, &ctx->file_data); if (ret) return ret; @@ -1184,7 +1197,7 @@ int io_sqe_buffers_register(struct io_ring_ctx *ctx, void __user *arg, return -EBUSY; if (!nr_args || nr_args > IORING_MAX_REG_BUFFERS) return -EINVAL; - ret = io_rsrc_data_alloc(ctx, io_rsrc_buf_put, tags, nr_args, &data); + ret = io_rsrc_data_alloc(ctx, IORING_RSRC_BUFFER, tags, nr_args, &data); if (ret) return ret; ret = io_buffers_map_alloc(ctx, nr_args); diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h index 232079363f6a..5d0733c4c08d 100644 --- a/io_uring/rsrc.h +++ b/io_uring/rsrc.h @@ -33,7 +33,7 @@ struct io_rsrc_data { u64 **tags; unsigned int nr; - rsrc_put_fn *do_put; + u16 rsrc_type; bool quiesce; }; |