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remove call_{read,write}_iter() functions

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These have no clear purpose.  This is effectively a revert of commit
bb7462b6fd ("vfs: use helpers for calling f_op->{read,write}_iter()").

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

Fixes: bb7462b6fd ("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>
This commit is contained in:
Miklos Szeredi 2023-08-28 17:13:18 +02:00 committed by Al Viro
parent 0f4a2cebe2
commit 7c98f7cb8f
7 changed files with 16 additions and 28 deletions
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4
drivers/block/loop.c
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@ -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); cmd->iocb.ki_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0);
if (rw == ITER_SOURCE) if (rw == ITER_SOURCE)
ret = call_write_iter(file, &cmd->iocb, &iter); ret = file->f_op->write_iter(&cmd->iocb, &iter);
else else
ret = call_read_iter(file, &cmd->iocb, &iter); ret = file->f_op->read_iter(&cmd->iocb, &iter);
lo_rw_aio_do_completion(cmd); lo_rw_aio_do_completion(cmd);

4
drivers/target/target_core_file.c
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@ -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; aio_cmd->iocb.ki_flags |= IOCB_DSYNC;
if (is_write) if (is_write)
ret = call_write_iter(file, &aio_cmd->iocb, &iter); ret = file->f_op->write_iter(&aio_cmd->iocb, &iter);
else else
ret = call_read_iter(file, &aio_cmd->iocb, &iter); ret = file->f_op->read_iter(&aio_cmd->iocb, &iter);
if (ret != -EIOCBQUEUED) if (ret != -EIOCBQUEUED)
cmd_rw_aio_complete(&aio_cmd->iocb, ret); cmd_rw_aio_complete(&aio_cmd->iocb, ret);

4
fs/aio.c
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@ -1605,7 +1605,7 @@ static int aio_read(struct kiocb *req, const struct iocb *iocb,
return ret; return ret;
ret = rw_verify_area(READ, file, &req->ki_pos, iov_iter_count(&iter)); ret = rw_verify_area(READ, file, &req->ki_pos, iov_iter_count(&iter));
if (!ret) 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); kfree(iovec);
return ret; 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)) if (S_ISREG(file_inode(file)->i_mode))
kiocb_start_write(req); kiocb_start_write(req);
req->ki_flags |= IOCB_WRITE; 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); kfree(iovec);
return ret; return ret;

12
fs/read_write.c
View File

@ -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); kiocb.ki_pos = (ppos ? *ppos : 0);
iov_iter_ubuf(&iter, ITER_DEST, buf, len); 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); BUG_ON(ret == -EIOCBQUEUED);
if (ppos) if (ppos)
*ppos = kiocb.ki_pos; *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); kiocb.ki_pos = (ppos ? *ppos : 0);
iov_iter_ubuf(&iter, ITER_SOURCE, (void __user *)buf, len); 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); BUG_ON(ret == -EIOCBQUEUED);
if (ret > 0 && ppos) if (ret > 0 && ppos)
*ppos = kiocb.ki_pos; *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); kiocb.ki_pos = (ppos ? *ppos : 0);
if (type == READ) if (type == READ)
ret = call_read_iter(filp, &kiocb, iter); ret = filp->f_op->read_iter(&kiocb, iter);
else else
ret = call_write_iter(filp, &kiocb, iter); ret = filp->f_op->write_iter(&kiocb, iter);
BUG_ON(ret == -EIOCBQUEUED); BUG_ON(ret == -EIOCBQUEUED);
if (ppos) if (ppos)
*ppos = kiocb.ki_pos; *ppos = kiocb.ki_pos;
@ -799,7 +799,7 @@ ssize_t vfs_iocb_iter_read(struct file *file, struct kiocb *iocb,
if (ret < 0) if (ret < 0)
return ret; return ret;
ret = call_read_iter(file, iocb, iter); ret = file->f_op->read_iter(iocb, iter);
out: out:
if (ret >= 0) if (ret >= 0)
fsnotify_access(file); fsnotify_access(file);
@ -860,7 +860,7 @@ ssize_t vfs_iocb_iter_write(struct file *file, struct kiocb *iocb,
return ret; return ret;
kiocb_start_write(iocb); kiocb_start_write(iocb);
ret = call_write_iter(file, iocb, iter); ret = file->f_op->write_iter(iocb, iter);
if (ret != -EIOCBQUEUED) if (ret != -EIOCBQUEUED)
kiocb_end_write(iocb); kiocb_end_write(iocb);
if (ret > 0) if (ret > 0)

4
fs/splice.c
View File

@ -362,7 +362,7 @@ ssize_t copy_splice_read(struct file *in, loff_t *ppos,
iov_iter_bvec(&to, ITER_DEST, bv, npages, len); iov_iter_bvec(&to, ITER_DEST, bv, npages, len);
init_sync_kiocb(&kiocb, in); init_sync_kiocb(&kiocb, in);
kiocb.ki_pos = *ppos; kiocb.ki_pos = *ppos;
ret = call_read_iter(in, &kiocb, &to); ret = in->f_op->read_iter(&kiocb, &to);
if (ret > 0) { if (ret > 0) {
keep = DIV_ROUND_UP(ret, PAGE_SIZE); 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); iov_iter_bvec(&from, ITER_SOURCE, array, n, sd.total_len - left);
init_sync_kiocb(&kiocb, out); init_sync_kiocb(&kiocb, out);
kiocb.ki_pos = sd.pos; 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; sd.pos = kiocb.ki_pos;
if (ret <= 0) if (ret <= 0)
break; break;

12
include/linux/fs.h
View File

@ -2096,18 +2096,6 @@ struct inode_operations {
struct offset_ctx *(*get_offset_ctx)(struct inode *inode); struct offset_ctx *(*get_offset_ctx)(struct inode *inode);
} ____cacheline_aligned; } ____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) static inline int call_mmap(struct file *file, struct vm_area_struct *vma)
{ {
return file->f_op->mmap(file, vma); return file->f_op->mmap(file, vma);

4
io_uring/rw.c
View File

@ -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; struct file *file = rw->kiocb.ki_filp;
if (likely(file->f_op->read_iter)) 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) else if (file->f_op->read)
return loop_rw_iter(READ, rw, iter); return loop_rw_iter(READ, rw, iter);
else else
@ -1047,7 +1047,7 @@ int io_write(struct io_kiocb *req, unsigned int issue_flags)
kiocb->ki_flags |= IOCB_WRITE; kiocb->ki_flags |= IOCB_WRITE;
if (likely(req->file->f_op->write_iter)) 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) else if (req->file->f_op->write)
ret2 = loop_rw_iter(WRITE, rw, &s->iter); ret2 = loop_rw_iter(WRITE, rw, &s->iter);
else else