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authorPavel Begunkov <asml.silence@gmail.com>2022-09-01 13:54:01 +0300
committerJens Axboe <axboe@kernel.dk>2022-09-01 18:13:33 +0300
commit23c12d5fc02fb0712c64f3e87a27fcfa78e8af9c (patch)
tree28c6f772507afdb13fd57fd07b71b9dbe9ebc921 /io_uring
parent75847100c351c7a49dddd60d1d023bd3e6640682 (diff)
downloadlinux-23c12d5fc02fb0712c64f3e87a27fcfa78e8af9c.tar.xz
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')
-rw-r--r--io_uring/rsrc.c38
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;
}