From 1eff69aa562dfad5d263007742d9487910f8e506 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 15 Apr 2021 17:30:45 +0800 Subject: [PATCH] io_uring: drop io_file_put() 'file' argument mainline inclusion from mainline-5.1-rc6 commit 3d6770fbd9353988839611bab107e4e891506aad category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=27 CVE: NA --------------------------- Since the fget/fput handling was reworked in commit 09bb839434bd, we never call io_file_put() with state == NULL (and hence file != NULL) anymore. Remove that case. Reported-by: Al Viro Signed-off-by: Jens Axboe Signed-off-by: Zhihao Cheng Signed-off-by: yangerkun Reviewed-by: zhangyi (F) Signed-off-by: Cheng Jian --- fs/io_uring.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index d46abb88c2b3..77aea48e1e61 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -682,11 +682,9 @@ static void io_iopoll_req_issued(struct io_kiocb *req) list_add_tail(&req->list, &ctx->poll_list); } -static void io_file_put(struct io_submit_state *state, struct file *file) +static void io_file_put(struct io_submit_state *state) { - if (!state) { - fput(file); - } else if (state->file) { + if (state->file) { int diff = state->has_refs - state->used_refs; if (diff) @@ -711,7 +709,7 @@ static struct file *io_file_get(struct io_submit_state *state, int fd) state->ios_left--; return state->file; } - io_file_put(state, NULL); + io_file_put(state); } state->file = fget_many(fd, state->ios_left); if (!state->file) @@ -1668,7 +1666,7 @@ static int io_submit_sqe(struct io_ring_ctx *ctx, struct sqe_submit *s, static void io_submit_state_end(struct io_submit_state *state) { blk_finish_plug(&state->plug); - io_file_put(state, NULL); + io_file_put(state); if (state->free_reqs) kmem_cache_free_bulk(req_cachep, state->free_reqs, &state->reqs[state->cur_req]); -- GitLab