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KILL_LEVEL=7.0 tests=BSF_BESS_OUTBOUND X-BESS-BRTS-Status:1 On 10/27/25 15:49, ALOK TIWARI wrote: > [You don't often get email from alok.a.tiwari@oracle.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > Hi, > > I am wondering if this condition is intentional. > It seems that ring->max_payload_sz represents the maximum allowed > payload size, so rejecting payloads smaller than that looks unexpected. > > Could you please confirm whether the current < check is correct or > if this should be > instead? > > 24fe962c86f5 ("fuse: {io-uring} Handle SQEs - register commands") > > Thanks, > Alok > --- > diff --git a/fs/fuse/dev_uring.c b/fs/fuse/dev_uring.c > index f6b12aebb8bb..4106fc80c1e8 100644 > --- a/fs/fuse/dev_uring.c > +++ b/fs/fuse/dev_uring.c > @@ -1051,7 +1051,7 @@ fuse_uring_create_ring_ent(struct io_uring_cmd *cmd, > } > > payload_size = iov[1].iov_len; > - if (payload_size < ring->max_payload_sz) { > + if (payload_size > ring->max_payload_sz) { > pr_info_ratelimited("Invalid req payload len %zu\n", > payload_size); > See the calculation of of ring->max_payload_sz in fuse_uring_create(), i.e. it determines the maximum payload an entry buffer could ever have. We don't care if fuse-server made a mistake and uses payload_size > ring->max_payload_sz, just a waste of memory then. Though, if payload_size < ring->max_payload_sz, it could not handle IO sizes given by fc->max_write, fc->max_pages or FUSE_MIN_READ_BUFFER. Thanks, Bernd