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| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-04-11 13:06:07 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-04-12 20:09:41 +0200 |
| commit | 2933ae6eaa05e8db6ad33a3ca12af18d2a25358c (patch) | |
| tree | 7ff931f2b1017b3a02df2e2004b5520c8a92ca95 /io_uring/rsrc.h | |
| parent | io_uring/rsrc: zero node's rsrc data on alloc (diff) | |
| download | linux-2933ae6eaa05e8db6ad33a3ca12af18d2a25358c.tar.xz linux-2933ae6eaa05e8db6ad33a3ca12af18d2a25358c.zip | |
io_uring/rsrc: refactor io_rsrc_node_switch
We use io_rsrc_node_switch() coupled with io_rsrc_node_switch_start()
for a bunch of cases including initialising ctx->rsrc_node, i.e. by
passing NULL instead of rsrc_data. Leave it to only deal with actual
node changing.
For that, first remove it from io_uring_create() and add a function
allocating the first node. Then also remove all calls to
io_rsrc_node_switch() from files/buffers register as we already have a
node installed and it does essentially nothing.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d146fe306ff98b1a5a60c997c252534f03d423d7.1681210788.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rsrc.h')
| -rw-r--r-- | io_uring/rsrc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h index 8729f2fee256..17dfe180208f 100644 --- a/io_uring/rsrc.h +++ b/io_uring/rsrc.h @@ -74,6 +74,7 @@ void io_rsrc_put_work(struct work_struct *work); void io_wait_rsrc_data(struct io_rsrc_data *data); void io_rsrc_node_destroy(struct io_ring_ctx *ctx, struct io_rsrc_node *ref_node); int io_rsrc_node_switch_start(struct io_ring_ctx *ctx); +struct io_rsrc_node *io_rsrc_node_alloc(struct io_ring_ctx *ctx); int io_queue_rsrc_removal(struct io_rsrc_data *data, unsigned idx, struct io_rsrc_node *node, void *rsrc); void io_rsrc_node_switch(struct io_ring_ctx *ctx, @@ -164,6 +165,12 @@ static inline u64 *io_get_tag_slot(struct io_rsrc_data *data, unsigned int idx) return &data->tags[table_idx][off]; } +static inline int io_rsrc_init(struct io_ring_ctx *ctx) +{ + ctx->rsrc_node = io_rsrc_node_alloc(ctx); + return ctx->rsrc_node ? 0 : -ENOMEM; +} + int io_files_update(struct io_kiocb *req, unsigned int issue_flags); int io_files_update_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); |