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authorPavel Begunkov <asml.silence@gmail.com>2020-04-12 02:05:01 +0300
committerJens Axboe <axboe@kernel.dk>2020-04-12 08:46:30 -0600
commitdccc587f6c07ccc734588226fdf62f685558e89f (patch)
tree4bc1526e17704f4272b68097c54c905e46fc8845 /fs
parent5b8b9d0c6d0e0f1993c6c56deaf9646942c49d94 (diff)
io_uring: remove obsolete @mm_fault
If io_submit_sqes() can't grab an mm, it fails and exits right away. There is no need to track the fact of the failure. Remove @mm_fault. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 5190bfb6a665..81532479c857 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5818,7 +5818,6 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
struct io_submit_state state, *statep = NULL;
struct io_kiocb *link = NULL;
int i, submitted = 0;
- bool mm_fault = false;
/* if we have a backlog and couldn't flush it all, return BUSY */
if (test_bit(0, &ctx->sq_check_overflow)) {
@@ -5872,8 +5871,7 @@ fail_req:
}
if (io_op_defs[req->opcode].needs_mm && !*mm) {
- mm_fault = mm_fault || !mmget_not_zero(ctx->sqo_mm);
- if (unlikely(mm_fault)) {
+ if (unlikely(!mmget_not_zero(ctx->sqo_mm))) {
err = -EFAULT;
goto fail_req;
}