From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 21 Oct 2021 09:22:35 -0600
Subject: fs: get rid of the res2 iocb->ki_complete argument
Patch-mainline: v5.16-rc1
Git-commit: 6b19b766e8f077f29cdb47da5003469a85bbfb9c
References: jsc#PED-1183
The second argument was only used by the USB gadget code, yet everyone
pays the overhead of passing a zero to be passed into aio, where it
ends up being part of the aio res2 value.
Now that everybody is passing in zero, kill off the extra argument.
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
block/fops.c | 4 ++--
crypto/af_alg.c | 2 +-
drivers/block/loop.c | 4 ++--
drivers/nvme/target/io-cmd-file.c | 4 ++--
drivers/target/target_core_file.c | 4 ++--
drivers/usb/gadget/function/f_fs.c | 2 +-
drivers/usb/gadget/legacy/inode.c | 5 ++---
fs/aio.c | 6 +++---
fs/cachefiles/io.c | 12 ++++++------
fs/ceph/file.c | 2 +-
fs/cifs/file.c | 4 ++--
fs/direct-io.c | 2 +-
fs/fuse/file.c | 2 +-
fs/io_uring.c | 6 +++---
fs/iomap/direct-io.c | 2 +-
fs/nfs/direct.c | 2 +-
fs/overlayfs/file.c | 4 ++--
include/linux/fs.h | 2 +-
18 files changed, 34 insertions(+), 35 deletions(-)
--- a/block/fops.c
+++ b/block/fops.c
@@ -163,7 +163,7 @@ static void blkdev_bio_end_io(struct bio
ret = blk_status_to_errno(dio->bio.bi_status);
}
- dio->iocb->ki_complete(iocb, ret, 0);
+ dio->iocb->ki_complete(iocb, ret);
bio_put(&dio->bio);
} else {
struct task_struct *waiter = dio->waiter;
@@ -295,7 +295,7 @@ static void blkdev_bio_end_io_async(stru
ret = blk_status_to_errno(bio->bi_status);
}
- iocb->ki_complete(iocb, ret, 0);
+ iocb->ki_complete(iocb, ret);
if (dio->flags & DIO_SHOULD_DIRTY) {
bio_check_pages_dirty(bio);
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -1076,7 +1076,7 @@ void af_alg_async_cb(struct crypto_async
af_alg_free_resources(areq);
sock_put(sk);
- iocb->ki_complete(iocb, err ? err : (int)resultlen, 0);
+ iocb->ki_complete(iocb, err ? err : (int)resultlen);
}
EXPORT_SYMBOL_GPL(af_alg_async_cb);
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -382,7 +382,7 @@ static void lo_rw_aio_do_completion(stru
blk_mq_complete_request(rq);
}
-static void lo_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
+static void lo_rw_aio_complete(struct kiocb *iocb, long ret)
{
struct loop_cmd *cmd = container_of(iocb, struct loop_cmd, iocb);
@@ -455,7 +455,7 @@ static int lo_rw_aio(struct loop_device
lo_rw_aio_do_completion(cmd);
if (ret != -EIOCBQUEUED)
- cmd->iocb.ki_complete(&cmd->iocb, ret, 0);
+ lo_rw_aio_complete(&cmd->iocb, ret);
return 0;
}
--- a/drivers/nvme/target/io-cmd-file.c
+++ b/drivers/nvme/target/io-cmd-file.c
@@ -125,7 +125,7 @@ static ssize_t nvmet_file_submit_bvec(st
return call_iter(iocb, &iter);
}
-static void nvmet_file_io_done(struct kiocb *iocb, long ret, long ret2)
+static void nvmet_file_io_done(struct kiocb *iocb, long ret)
{
struct nvmet_req *req = container_of(iocb, struct nvmet_req, f.iocb);
u16 status = NVME_SC_SUCCESS;
@@ -222,7 +222,7 @@ static bool nvmet_file_execute_io(struct
}
complete:
- nvmet_file_io_done(&req->f.iocb, ret, 0);
+ nvmet_file_io_done(&req->f.iocb, ret);
return true;
}
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -245,7 +245,7 @@ struct target_core_file_cmd {
struct bio_vec bvecs[];
};
-static void cmd_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
+static void cmd_rw_aio_complete(struct kiocb *iocb, long ret)
{
struct target_core_file_cmd *cmd;
@@ -303,7 +303,7 @@ fd_execute_rw_aio(struct se_cmd *cmd, st
ret = call_read_iter(file, &aio_cmd->iocb, &iter);
if (ret != -EIOCBQUEUED)
- cmd_rw_aio_complete(&aio_cmd->iocb, ret, 0);
+ cmd_rw_aio_complete(&aio_cmd->iocb, ret);
return 0;
}
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -831,7 +831,7 @@ static void ffs_user_copy_worker(struct
kthread_unuse_mm(io_data->mm);
}
- io_data->kiocb->ki_complete(io_data->kiocb, ret, 0);
+ io_data->kiocb->ki_complete(io_data->kiocb, ret);
if (io_data->ffs->ffs_eventfd && !kiocb_has_eventfd)
eventfd_signal(io_data->ffs->ffs_eventfd, 1);
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -469,7 +469,7 @@ static void ep_user_copy_worker(struct w
ret = -EFAULT;
/* completing the iocb can drop the ctx and mm, don't touch mm after */
- iocb->ki_complete(iocb, ret, 0);
+ iocb->ki_complete(iocb, ret);
kfree(priv->buf);
kfree(priv->to_free);
@@ -497,8 +497,7 @@ static void ep_aio_complete(struct usb_e
kfree(priv);
iocb->private = NULL;
iocb->ki_complete(iocb,
- req->actual ? req->actual : (long)req->status,
- 0);
+ req->actual ? req->actual : (long)req->status);
} else {
/* ep_copy_to_user() won't report both; we hide some faults */
if (unlikely(0 != req->status))
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1417,7 +1417,7 @@ static void aio_remove_iocb(struct aio_k
spin_unlock_irqrestore(&ctx->ctx_lock, flags);
}
-static void aio_complete_rw(struct kiocb *kiocb, long res, long res2)
+static void aio_complete_rw(struct kiocb *kiocb, long res)
{
struct aio_kiocb *iocb = container_of(kiocb, struct aio_kiocb, rw);
@@ -1437,7 +1437,7 @@ static void aio_complete_rw(struct kiocb
}
iocb->ki_res.res = res;
- iocb->ki_res.res2 = res2;
+ iocb->ki_res.res2 = 0;
iocb_put(iocb);
}
@@ -1508,7 +1508,7 @@ static inline void aio_rw_done(struct ki
ret = -EINTR;
fallthrough;
default:
- req->ki_complete(req, ret, 0);
+ req->ki_complete(req, ret);
}
}
--- a/fs/cachefiles/io.c
+++ b/fs/cachefiles/io.c
@@ -37,11 +37,11 @@ static inline void cachefiles_put_kiocb(
/*
* Handle completion of a read from the cache.
*/
-static void cachefiles_read_complete(struct kiocb *iocb, long ret, long ret2)
+static void cachefiles_read_complete(struct kiocb *iocb, long ret)
{
struct cachefiles_kiocb *ki = container_of(iocb, struct cachefiles_kiocb, iocb);
- _enter("%ld,%ld", ret, ret2);
+ _enter("%ld", ret);
if (ki->term_func) {
if (ret >= 0)
@@ -139,7 +139,7 @@ static int cachefiles_read(struct netfs_
fallthrough;
default:
ki->was_async = false;
- cachefiles_read_complete(&ki->iocb, ret, 0);
+ cachefiles_read_complete(&ki->iocb, ret);
if (ret > 0)
ret = 0;
break;
@@ -159,12 +159,12 @@ static int cachefiles_read(struct netfs_
/*
* Handle completion of a write to the cache.
*/
-static void cachefiles_write_complete(struct kiocb *iocb, long ret, long ret2)
+static void cachefiles_write_complete(struct kiocb *iocb, long ret)
{
struct cachefiles_kiocb *ki = container_of(iocb, struct cachefiles_kiocb, iocb);
struct inode *inode = file_inode(ki->iocb.ki_filp);
- _enter("%ld,%ld", ret, ret2);
+ _enter("%ld", ret);
/* Tell lockdep we inherited freeze protection from submission thread */
__sb_writers_acquired(inode->i_sb, SB_FREEZE_WRITE);
@@ -244,7 +244,7 @@ static int cachefiles_write(struct netfs
fallthrough;
default:
ki->was_async = false;
- cachefiles_write_complete(&ki->iocb, ret, 0);
+ cachefiles_write_complete(&ki->iocb, ret);
if (ret > 0)
ret = 0;
break;
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1022,7 +1022,7 @@ static void ceph_aio_complete(struct ino
ceph_put_cap_refs(ci, (aio_req->write ? CEPH_CAP_FILE_WR :
CEPH_CAP_FILE_RD));
- aio_req->iocb->ki_complete(aio_req->iocb, ret, 0);
+ aio_req->iocb->ki_complete(aio_req->iocb, ret);
ceph_free_cap_flush(aio_req->prealloc_cf);
kfree(aio_req);
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3180,7 +3180,7 @@ static void collect_uncached_write_data(
mutex_unlock(&ctx->aio_mutex);
if (ctx->iocb && ctx->iocb->ki_complete)
- ctx->iocb->ki_complete(ctx->iocb, ctx->rc, 0);
+ ctx->iocb->ki_complete(ctx->iocb, ctx->rc);
else
complete(&ctx->done);
}
@@ -3913,7 +3913,7 @@ collect_uncached_read_data(struct cifs_a
mutex_unlock(&ctx->aio_mutex);
if (ctx->iocb && ctx->iocb->ki_complete)
- ctx->iocb->ki_complete(ctx->iocb, ctx->rc, 0);
+ ctx->iocb->ki_complete(ctx->iocb, ctx->rc);
else
complete(&ctx->done);
}
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -307,7 +307,7 @@ static ssize_t dio_complete(struct dio *
if (ret > 0 && dio->op == REQ_OP_WRITE)
ret = generic_write_sync(dio->iocb, ret);
- dio->iocb->ki_complete(dio->iocb, ret, 0);
+ dio->iocb->ki_complete(dio->iocb, ret);
}
kmem_cache_free(dio_cache, dio);
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -687,7 +687,7 @@ static void fuse_aio_complete(struct fus
spin_unlock(&fi->lock);
}
- io->iocb->ki_complete(io->iocb, res, 0);
+ io->iocb->ki_complete(io->iocb, res);
}
kref_put(&io->refcnt, fuse_io_release);
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -125,7 +125,7 @@ static void iomap_dio_complete_work(stru
struct iomap_dio *dio = container_of(work, struct iomap_dio, aio.work);
struct kiocb *iocb = dio->iocb;
- iocb->ki_complete(iocb, iomap_dio_complete(dio), 0);
+ iocb->ki_complete(iocb, iomap_dio_complete(dio));
}
/*
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2666,7 +2666,7 @@ static void __io_complete_rw(struct io_k
__io_req_complete(req, issue_flags, req->result, io_put_rw_kbuf(req));
}
-static void io_complete_rw(struct kiocb *kiocb, long res, long res2)
+static void io_complete_rw(struct kiocb *kiocb, long res)
{
struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
@@ -2677,7 +2677,7 @@ static void io_complete_rw(struct kiocb
io_req_task_work_add(req);
}
-static void io_complete_rw_iopoll(struct kiocb *kiocb, long res, long res2)
+static void io_complete_rw_iopoll(struct kiocb *kiocb, long res)
{
struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
@@ -2884,7 +2884,7 @@ static inline void io_rw_done(struct kio
ret = -EINTR;
fallthrough;
default:
- kiocb->ki_complete(kiocb, ret, 0);
+ kiocb->ki_complete(kiocb, ret);
}
}
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -275,7 +275,7 @@ static void nfs_direct_complete(struct n
res = (long) dreq->count;
WARN_ON_ONCE(dreq->count < 0);
}
- dreq->iocb->ki_complete(dreq->iocb, res, 0);
+ dreq->iocb->ki_complete(dreq->iocb, res);
}
complete(&dreq->completion);
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -272,14 +272,14 @@ static void ovl_aio_cleanup_handler(stru
kmem_cache_free(ovl_aio_request_cachep, aio_req);
}
-static void ovl_aio_rw_complete(struct kiocb *iocb, long res, long res2)
+static void ovl_aio_rw_complete(struct kiocb *iocb, long res)
{
struct ovl_aio_req *aio_req = container_of(iocb,
struct ovl_aio_req, iocb);
struct kiocb *orig_iocb = aio_req->orig_iocb;
ovl_aio_cleanup_handler(aio_req);
- orig_iocb->ki_complete(orig_iocb, res, res2);
+ orig_iocb->ki_complete(orig_iocb, res);
}
static ssize_t ovl_read_iter(struct kiocb *iocb, struct iov_iter *iter)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -330,7 +330,7 @@ struct kiocb {
randomized_struct_fields_start
loff_t ki_pos;
- void (*ki_complete)(struct kiocb *iocb, long ret, long ret2);
+ void (*ki_complete)(struct kiocb *iocb, long ret);
void *private;
int ki_flags;
u16 ki_hint;