[PATCH 6.9 048/374] remove call_{read,write}_iter() functions

Greg Kroah-Hartman
2024-06-06T14:08:36Z

From: Miklos Szeredi <mszeredi@redhat.com>

[ Upstream commit 7c98f7cb8fda964fbc60b9307ad35e94735fa35f ]

These have no clear purpose. This is effectively a revert of commit
bb7462b6fd64 ("vfs: use helpers for calling f_op->{read,write}_iter()").

The patch was created with the help of a coccinelle script.

Fixes: bb7462b6fd64 ("vfs: use helpers for calling f_op->{read,write}_iter()")
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/block/loop.c | 4 ++--
drivers/target/target_core_file.c | 4 ++--
fs/aio.c | 4 ++--
fs/read_write.c | 12 ++++++------
fs/splice.c | 4 ++--
include/linux/fs.h | 12 ------------
io_uring/rw.c | 4 ++--
7 files changed, 16 insertions(+), 28 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 28a95fd366fea..93780f41646b7 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -445,9 +445,9 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
cmd->iocb.ki_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0);

if (rw == ITER_SOURCE)
- ret = call_write_iter(file, &cmd->iocb, &iter);
+ ret = file->f_op->write_iter(&cmd->iocb, &iter);
else
- ret = call_read_iter(file, &cmd->iocb, &iter);
+ ret = file->f_op->read_iter(&cmd->iocb, &iter);

lo_rw_aio_do_completion(cmd);

diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 4d447520bab87..94e6cd4e7e43d 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -299,9 +299,9 @@ fd_execute_rw_aio(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
aio_cmd->iocb.ki_flags |= IOCB_DSYNC;

if (is_write)
- ret = call_write_iter(file, &aio_cmd->iocb, &iter);
+ ret = file->f_op->write_iter(&aio_cmd->iocb, &iter);
else
- ret = call_read_iter(file, &aio_cmd->iocb, &iter);
+ ret = file->f_op->read_iter(&aio_cmd->iocb, &iter);

if (ret != -EIOCBQUEUED)
cmd_rw_aio_complete(&aio_cmd->iocb, ret);
diff --git a/fs/aio.c b/fs/aio.c
index 0f4f531c97800..744c7d1562dce 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1605,7 +1605,7 @@ static int aio_read(struct kiocb *req, const struct iocb *iocb,
return ret;
ret = rw_verify_area(READ, file, &req->ki_pos, iov_iter_count(&iter));
if (!ret)
- aio_rw_done(req, call_read_iter(file, req, &iter));
+ aio_rw_done(req, file->f_op->read_iter(req, &iter));
kfree(iovec);
return ret;
}
@@ -1636,7 +1636,7 @@ static int aio_write(struct kiocb *req, const struct iocb *iocb,
if (S_ISREG(file_inode(file)->i_mode))
kiocb_start_write(req);
req->ki_flags |= IOCB_WRITE;
- aio_rw_done(req, call_write_iter(file, req, &iter));
+ aio_rw_done(req, file->f_op->write_iter(req, &iter));
}
kfree(iovec);
return ret;
diff --git a/fs/read_write.c b/fs/read_write.c
index d4c036e82b6c3..2de7f6adb33d3 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -392,7 +392,7 @@ static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, lo
kiocb.ki_pos = (ppos ? *ppos : 0);
iov_iter_ubuf(&iter, ITER_DEST, buf, len);

- ret = call_read_iter(filp, &kiocb, &iter);
+ ret = filp->f_op->read_iter(&kiocb, &iter);
BUG_ON(ret == -EIOCBQUEUED);
if (ppos)
*ppos = kiocb.ki_pos;
@@ -494,7 +494,7 @@ static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t
kiocb.ki_pos = (ppos ? *ppos : 0);
iov_iter_ubuf(&iter, ITER_SOURCE, (void __user *)buf, len);

- ret = call_write_iter(filp, &kiocb, &iter);
+ ret = filp->f_op->write_iter(&kiocb, &iter);
BUG_ON(ret == -EIOCBQUEUED);
if (ret > 0 && ppos)
*ppos = kiocb.ki_pos;
@@ -736,9 +736,9 @@ static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
kiocb.ki_pos = (ppos ? *ppos : 0);

if (type == READ)
- ret = call_read_iter(filp, &kiocb, iter);
+ ret = filp->f_op->read_iter(&kiocb, iter);
else
- ret = call_write_iter(filp, &kiocb, iter);
+ ret = filp->f_op->write_iter(&kiocb, iter);
BUG_ON(ret == -EIOCBQUEUED);
if (ppos)
*ppos = kiocb.ki_pos;
@@ -799,7 +799,7 @@ ssize_t vfs_iocb_iter_read(struct file *file, struct kiocb *iocb,
if (ret < 0)
return ret;

- ret = call_read_iter(file, iocb, iter);
+ ret = file->f_op->read_iter(iocb, iter);
out:
if (ret >= 0)
fsnotify_access(file);
@@ -860,7 +860,7 @@ ssize_t vfs_iocb_iter_write(struct file *file, struct kiocb *iocb,
return ret;

kiocb_start_write(iocb);
- ret = call_write_iter(file, iocb, iter);
+ ret = file->f_op->write_iter(iocb, iter);
if (ret != -EIOCBQUEUED)
kiocb_end_write(iocb);
if (ret > 0)
diff --git a/fs/splice.c b/fs/splice.c
index 218e24b1ac401..60aed8de21f85 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -362,7 +362,7 @@ ssize_t copy_splice_read(struct file *in, loff_t *ppos,
iov_iter_bvec(&to, ITER_DEST, bv, npages, len);
init_sync_kiocb(&kiocb, in);
kiocb.ki_pos = *ppos;
- ret = call_read_iter(in, &kiocb, &to);
+ ret = in->f_op->read_iter(&kiocb, &to);

if (ret > 0) {
keep = DIV_ROUND_UP(ret, PAGE_SIZE);
@@ -740,7 +740,7 @@ iter_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
iov_iter_bvec(&from, ITER_SOURCE, array, n, sd.total_len - left);
init_sync_kiocb(&kiocb, out);
kiocb.ki_pos = sd.pos;
- ret = call_write_iter(out, &kiocb, &from);
+ ret = out->f_op->write_iter(&kiocb, &from);
sd.pos = kiocb.ki_pos;
if (ret <= 0)
break;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b09f141321105..d20b5cbbf65d0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2098,18 +2098,6 @@ struct inode_operations {
struct offset_ctx *(*get_offset_ctx)(struct inode *inode);
} ____cacheline_aligned;

-static inline ssize_t call_read_iter(struct file *file, struct kiocb *kio,
- struct iov_iter *iter)
-{
- return file->f_op->read_iter(kio, iter);
-}
-
-static inline ssize_t call_write_iter(struct file *file, struct kiocb *kio,
- struct iov_iter *iter)
-{
- return file->f_op->write_iter(kio, iter);
-}
-
static inline int call_mmap(struct file *file, struct vm_area_struct *vma)
{
return file->f_op->mmap(file, vma);
diff --git a/io_uring/rw.c b/io_uring/rw.c
index c8d48287439e5..29f4aa153ab9b 100644
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -701,7 +701,7 @@ static inline int io_iter_do_read(struct io_rw *rw, struct iov_iter *iter)
struct file *file = rw->kiocb.ki_filp;

if (likely(file->f_op->read_iter))
- return call_read_iter(file, &rw->kiocb, iter);
+ return file->f_op->read_iter(&rw->kiocb, iter);
else if (file->f_op->read)
return loop_rw_iter(READ, rw, iter);
else
@@ -1054,7 +1054,7 @@ int io_write(struct io_kiocb *req, unsigned int issue_flags)
kiocb->ki_flags |= IOCB_WRITE;

if (likely(req->file->f_op->write_iter))
- ret2 = call_write_iter(req->file, kiocb, &s->iter);
+ ret2 = req->file->f_op->write_iter(kiocb, &s->iter);
else if (req->file->f_op->write)
ret2 = loop_rw_iter(WRITE, rw, &s->iter);
else
--
2.43.0