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io_uring: don't mark S_ISBLK async work as unbounded 

S_ISBLK is marked as unbounded work for async preparation, because it
doesn't match S_ISREG. That is incorrect, as any read/write to a block
device is also a bounded operation. Fix it up and ensure that S_ISBLK
isn't marked unbounded.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2021-04-01 08:38:34 -06:00
parent 82734c5b1b
commit 4b982bd0f3
1 changed files with 1 additions and 1 deletions
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2
fs/io_uring.c
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@ -1213,7 +1213,7 @@ static void io_prep_async_work(struct io_kiocb *req)
if (req->flags & REQ_F_ISREG) {
if (def->hash_reg_file || (ctx->flags & IORING_SETUP_IOPOLL))
io_wq_hash_work(&req->work, file_inode(req->file));
} else {
} else if (!req->file || !S_ISBLK(file_inode(req->file)->i_mode)) {
if (def->unbound_nonreg_file)
req->work.flags |= IO_WQ_WORK_UNBOUND;
}