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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-09-01 11:54:01 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-09-01 09:13:33 -0600 |
| commit | 23c12d5fc02fb0712c64f3e87a27fcfa78e8af9c (patch) | |
| tree | 28c6f772507afdb13fd57fd07b71b9dbe9ebc921 /io_uring/rsrc.c | |
| parent | 75847100c351c7a49dddd60d1d023bd3e6640682 (diff) | |
| download | lwn-23c12d5fc02fb0712c64f3e87a27fcfa78e8af9c.tar.gz lwn-23c12d5fc02fb0712c64f3e87a27fcfa78e8af9c.zip | |
Revert "io_uring: add zc notification flush requests"
This reverts commit 492dddb4f6e3a5839c27d41ff1fecdbe6c3ab851.
Soon we won't have the very notion of notification flushing, so remove
notification flushing requests.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8850334ca56e65b413cb34fd158db81d7b2865a3.1662027856.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/rsrc.c')
| -rw-r--r-- | io_uring/rsrc.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index 71359a4d0bd4..048f7483fe8a 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -15,7 +15,6 @@ #include "io_uring.h" #include "openclose.h" #include "rsrc.h" -#include "notif.h" struct io_rsrc_update { struct file *file; @@ -741,41 +740,6 @@ static int io_files_update(struct io_kiocb *req, unsigned int issue_flags) return IOU_OK; } -static int io_notif_update(struct io_kiocb *req, unsigned int issue_flags) -{ - struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update); - struct io_ring_ctx *ctx = req->ctx; - unsigned len = up->nr_args; - unsigned idx_end, idx = up->offset; - int ret = 0; - - io_ring_submit_lock(ctx, issue_flags); - if (unlikely(check_add_overflow(idx, len, &idx_end))) { - ret = -EOVERFLOW; - goto out; - } - if (unlikely(idx_end > ctx->nr_notif_slots)) { - ret = -EINVAL; - goto out; - } - - for (; idx < idx_end; idx++) { - struct io_notif_slot *slot = &ctx->notif_slots[idx]; - - if (!slot->notif) - continue; - if (up->arg) - slot->tag = up->arg; - io_notif_slot_flush_submit(slot, issue_flags); - } -out: - io_ring_submit_unlock(ctx, issue_flags); - if (ret < 0) - req_set_fail(req); - io_req_set_res(req, ret, 0); - return IOU_OK; -} - int io_rsrc_update(struct io_kiocb *req, unsigned int issue_flags) { struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update); @@ -783,8 +747,6 @@ int io_rsrc_update(struct io_kiocb *req, unsigned int issue_flags) switch (up->type) { case IORING_RSRC_UPDATE_FILES: return io_files_update(req, issue_flags); - case IORING_RSRC_UPDATE_NOTIF: - return io_notif_update(req, issue_flags); } return -EINVAL; } |