->aio_read and ->aio_write removed

no remaining users

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

8 files changed, 9 insertions, 54 deletions

diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index f91926f2f482..c3cd6279e92e 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -429,8 +429,6 @@ prototypes:
         loff_t (*llseek) (struct file *, loff_t, int);
         ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
         ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
-        ssize_t (*aio_read) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
-        ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
         ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);
         ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
         int (*iterate) (struct file *, struct dir_context *);
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 4006483c275f..e69274de8d0c 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -480,3 +480,6 @@ in your dentry operations instead.
 [mandatory]
         do _not_ use new_sync_{read,write} for ->read/->write; leave it NULL
         instead.
+--
+[mandatory]
+        ->aio_read/->aio_write are gone.  Use ->read_iter/->write_iter.
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 966b22829f3b..207cdca68bed 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -804,8 +804,6 @@ struct file_operations {
         loff_t (*llseek) (struct file *, loff_t, int);
         ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
         ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
-        ssize_t (*aio_read) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
-        ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
         ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);
         ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
         int (*iterate) (struct file *, struct dir_context *);
@@ -838,14 +836,10 @@ otherwise noted.
 
   read: called by read(2) and related system calls
 
-  aio_read: vectored, possibly asynchronous read
-
   read_iter: possibly asynchronous read with iov_iter as destination
 
   write: called by write(2) and related system calls
 
-  aio_write: vectored, possibly asynchronous write
-
   write_iter: possibly asynchronous write with iov_iter as source
 
   iterate: called when the VFS needs to read the directory contents
diff --git a/fs/aio.c b/fs/aio.c
index f0b0a2f8a63f..8eece807abed 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1347,8 +1347,6 @@ SYSCALL_DEFINE1(io_destroy, aio_context_t, ctx)
         return -EINVAL;
 }
 
-typedef ssize_t (aio_rw_op)(struct kiocb *, const struct iovec *,
-                            unsigned long, loff_t);
 typedef ssize_t (rw_iter_op)(struct kiocb *, struct iov_iter *);
 
 static int aio_setup_vectored_rw(int rw, char __user *buf, size_t len,
@@ -1377,7 +1375,6 @@ static ssize_t aio_run_iocb(struct kiocb *req, unsigned opcode,
         ssize_t ret;
         int rw;
         fmode_t mode;
-        aio_rw_op *rw_op;
         rw_iter_op *iter_op;
         struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
         struct iov_iter iter;
@@ -1387,7 +1384,6 @@ static ssize_t aio_run_iocb(struct kiocb *req, unsigned opcode,
         case IOCB_CMD_PREADV:
                 mode    = FMODE_READ;
                 rw      = READ;
-                rw_op   = file->f_op->aio_read;
                 iter_op = file->f_op->read_iter;
                 goto rw_common;
 
@@ -1395,14 +1391,13 @@ static ssize_t aio_run_iocb(struct kiocb *req, unsigned opcode,
         case IOCB_CMD_PWRITEV:
                 mode    = FMODE_WRITE;
                 rw      = WRITE;
-                rw_op   = file->f_op->aio_write;
                 iter_op = file->f_op->write_iter;
                 goto rw_common;
 rw_common:
                 if (unlikely(!(file->f_mode & mode)))
                         return -EBADF;
 
-                if (!rw_op && !iter_op)
+                if (!iter_op)
                         return -EINVAL;
 
                 if (opcode == IOCB_CMD_PREADV || opcode == IOCB_CMD_PWRITEV)
@@ -1425,11 +1420,7 @@ rw_common:
                 if (rw == WRITE)
                         file_start_write(file);
 
-                if (iter_op) {
-                        ret = iter_op(req, &iter);
-                } else {
-                        ret = rw_op(req, iter.iov, iter.nr_segs, req->ki_pos);
-                }
+                ret = iter_op(req, &iter);
 
                 if (rw == WRITE)
                         file_end_write(file);
diff --git a/fs/file_table.c b/fs/file_table.c
index 3f85411b03ce..294174dcc226 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -168,10 +168,10 @@ struct file *alloc_file(struct path *path, fmode_t mode,
         file->f_inode = path->dentry->d_inode;
         file->f_mapping = path->dentry->d_inode->i_mapping;
         if ((mode & FMODE_READ) &&
-             likely(fop->read || fop->aio_read || fop->read_iter))
+             likely(fop->read || fop->read_iter))
                 mode |= FMODE_CAN_READ;
         if ((mode & FMODE_WRITE) &&
-             likely(fop->write || fop->aio_write || fop->write_iter))
+             likely(fop->write || fop->write_iter))
                 mode |= FMODE_CAN_WRITE;
         file->f_mode = mode;
         file->f_op = fop;
diff --git a/fs/open.c b/fs/open.c
index 6a83c47d5904..6796f04d6032 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -734,10 +734,10 @@ static int do_dentry_open(struct file *f,
         if ((f->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
                 i_readcount_inc(inode);
         if ((f->f_mode & FMODE_READ) &&
-             likely(f->f_op->read || f->f_op->aio_read || f->f_op->read_iter))
+             likely(f->f_op->read || f->f_op->read_iter))
                 f->f_mode |= FMODE_CAN_READ;
         if ((f->f_mode & FMODE_WRITE) &&
-             likely(f->f_op->write || f->f_op->aio_write || f->f_op->write_iter))
+             likely(f->f_op->write || f->f_op->write_iter))
                 f->f_mode |= FMODE_CAN_WRITE;
 
         f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
diff --git a/fs/read_write.c b/fs/read_write.c
index 3d42d8ee5940..45d583c33879 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -22,8 +22,6 @@
 #include <asm/unistd.h>
 
 typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
-typedef ssize_t (*iov_fn_t)(struct kiocb *, const struct iovec *,
-                unsigned long, loff_t);
 typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *);
 
 const struct file_operations generic_ro_fops = {
@@ -668,21 +666,6 @@ static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
         return ret;
 }
 
-static ssize_t do_sync_readv_writev(struct file *filp, struct iov_iter *iter,
-                loff_t *ppos, iov_fn_t fn)
-{
-        struct kiocb kiocb;
-        ssize_t ret;
-
-        init_sync_kiocb(&kiocb, filp);
-        kiocb.ki_pos = *ppos;
-
-        ret = fn(&kiocb, iter->iov, iter->nr_segs, kiocb.ki_pos);
-        BUG_ON(ret == -EIOCBQUEUED);
-        *ppos = kiocb.ki_pos;
-        return ret;
-}
-
 /* Do it by hand, with file-ops */
 static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,
                 loff_t *ppos, io_fn_t fn)
@@ -797,7 +780,6 @@ static ssize_t do_readv_writev(int type, struct file *file,
         struct iov_iter iter;
         ssize_t ret;
         io_fn_t fn;
-        iov_fn_t fnv;
         iter_fn_t iter_fn;
 
         ret = import_iovec(type, uvector, nr_segs,
@@ -812,22 +794,17 @@ static ssize_t do_readv_writev(int type, struct file *file,
         if (ret < 0)
                 goto out;
 
-        fnv = NULL;
         if (type == READ) {
                 fn = file->f_op->read;
-                fnv = file->f_op->aio_read;
                 iter_fn = file->f_op->read_iter;
         } else {
                 fn = (io_fn_t)file->f_op->write;
-                fnv = file->f_op->aio_write;
                 iter_fn = file->f_op->write_iter;
                 file_start_write(file);
         }
 
         if (iter_fn)
                 ret = do_iter_readv_writev(file, &iter, pos, iter_fn);
-        else if (fnv)
-                ret = do_sync_readv_writev(file, &iter, pos, fnv);
         else
                 ret = do_loop_readv_writev(file, &iter, pos, fn);
 
@@ -977,7 +954,6 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
         struct iov_iter iter;
         ssize_t ret;
         io_fn_t fn;
-        iov_fn_t fnv;
         iter_fn_t iter_fn;
 
         ret = compat_import_iovec(type, uvector, nr_segs,
@@ -992,22 +968,17 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
         if (ret < 0)
                 goto out;
 
-        fnv = NULL;
         if (type == READ) {
                 fn = file->f_op->read;
-                fnv = file->f_op->aio_read;
                 iter_fn = file->f_op->read_iter;
         } else {
                 fn = (io_fn_t)file->f_op->write;
-                fnv = file->f_op->aio_write;
                 iter_fn = file->f_op->write_iter;
                 file_start_write(file);
         }
 
         if (iter_fn)
                 ret = do_iter_readv_writev(file, &iter, pos, iter_fn);
-        else if (fnv)
-                ret = do_sync_readv_writev(file, &iter, pos, fnv);
         else
                 ret = do_loop_readv_writev(file, &iter, pos, fn);
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 83e122c1a902..f1e3f65255a8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1562,8 +1562,6 @@ struct file_operations {
         loff_t (*llseek) (struct file *, loff_t, int);
         ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
         ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
-        ssize_t (*aio_read) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
-        ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
         ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);
         ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
         int (*iterate) (struct file *, struct dir_context *);