Commit 5d5d5689 authored by Al Viro's avatar Al Viro
Browse files

make new_sync_{read,write}() static



All places outside of core VFS that checked ->read and ->write for being NULL or
called the methods directly are gone now, so NULL {read,write} with non-NULL
{read,write}_iter will do the right thing in all cases.
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 86cc0584
......@@ -471,3 +471,12 @@ in your dentry operations instead.
[mandatory]
f_dentry is gone; use f_path.dentry, or, better yet, see if you can avoid
it entirely.
--
[mandatory]
never call ->read() and ->write() directly; use __vfs_{read,write} or
wrappers; instead of checking for ->write or ->read being NULL, look for
FMODE_CAN_{WRITE,READ} in file->f_mode.
--
[mandatory]
do _not_ use new_sync_{read,write} for ->read/->write; leave it NULL
instead.
......@@ -437,8 +437,6 @@ struct dentry *hypfs_create_str(struct dentry *dir,
static const struct file_operations hypfs_file_ops = {
.open = hypfs_open,
.release = hypfs_release,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = hypfs_read_iter,
.write_iter = hypfs_write_iter,
.llseek = no_llseek,
......
......@@ -764,7 +764,6 @@ static const struct file_operations __maybe_unused port_fops = {
static const struct file_operations zero_fops = {
.llseek = zero_lseek,
.read = new_sync_read,
.write = write_zero,
.read_iter = read_iter_zero,
.aio_write = aio_write_zero,
......@@ -776,7 +775,6 @@ static const struct file_operations zero_fops = {
static const struct file_operations full_fops = {
.llseek = full_lseek,
.read = new_sync_read,
.read_iter = read_iter_zero,
.write = write_full,
};
......
......@@ -282,9 +282,7 @@ static long raw_ctl_compat_ioctl(struct file *file, unsigned int cmd,
#endif
static const struct file_operations raw_fops = {
.read = new_sync_read,
.read_iter = blkdev_read_iter,
.write = new_sync_write,
.write_iter = blkdev_write_iter,
.fsync = blkdev_fsync,
.open = raw_open,
......
......@@ -1118,8 +1118,6 @@ static const struct file_operations macvtap_fops = {
.owner = THIS_MODULE,
.open = macvtap_open,
.release = macvtap_release,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = macvtap_read_iter,
.write_iter = macvtap_write_iter,
.poll = macvtap_poll,
......
......@@ -2223,8 +2223,6 @@ static void tun_chr_show_fdinfo(struct seq_file *m, struct file *f)
static const struct file_operations tun_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = tun_chr_read_iter,
.write_iter = tun_chr_write_iter,
.poll = tun_chr_poll,
......
......@@ -3128,9 +3128,7 @@ int ll_inode_permission(struct inode *inode, int mask)
/* -o localflock - only provides locally consistent flock locks */
struct file_operations ll_file_operations = {
.read = new_sync_read,
.read_iter = ll_file_read_iter,
.write = new_sync_write,
.write_iter = ll_file_write_iter,
.unlocked_ioctl = ll_file_ioctl,
.open = ll_file_open,
......@@ -3143,9 +3141,7 @@ struct file_operations ll_file_operations = {
};
struct file_operations ll_file_operations_flock = {
.read = new_sync_read,
.read_iter = ll_file_read_iter,
.write = new_sync_write,
.write_iter = ll_file_write_iter,
.unlocked_ioctl = ll_file_ioctl,
.open = ll_file_open,
......@@ -3161,9 +3157,7 @@ struct file_operations ll_file_operations_flock = {
/* These are for -o noflock - to return ENOSYS on flock calls */
struct file_operations ll_file_operations_noflock = {
.read = new_sync_read,
.read_iter = ll_file_read_iter,
.write = new_sync_write,
.write_iter = ll_file_write_iter,
.unlocked_ioctl = ll_file_ioctl,
.open = ll_file_open,
......
......@@ -1061,8 +1061,6 @@ static const struct file_operations ffs_epfile_operations = {
.llseek = no_llseek,
.open = ffs_epfile_open,
.write = new_sync_write,
.read = new_sync_read,
.write_iter = ffs_epfile_write_iter,
.read_iter = ffs_epfile_read_iter,
.release = ffs_epfile_release,
......
......@@ -699,8 +699,6 @@ static const struct file_operations ep_io_operations = {
.open = ep_open,
.release = ep_release,
.llseek = no_llseek,
.read = new_sync_read,
.write = new_sync_write,
.unlocked_ioctl = ep_ioctl,
.read_iter = ep_read_iter,
.write_iter = ep_write_iter,
......
......@@ -641,8 +641,6 @@ static const struct vm_operations_struct v9fs_mmap_file_vm_ops = {
const struct file_operations v9fs_cached_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.open = v9fs_file_open,
......@@ -654,8 +652,6 @@ const struct file_operations v9fs_cached_file_operations = {
const struct file_operations v9fs_cached_file_operations_dotl = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.open = v9fs_file_open,
......@@ -668,8 +664,6 @@ const struct file_operations v9fs_cached_file_operations_dotl = {
const struct file_operations v9fs_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = v9fs_file_read_iter,
.write_iter = v9fs_file_write_iter,
.open = v9fs_file_open,
......@@ -681,8 +675,6 @@ const struct file_operations v9fs_file_operations = {
const struct file_operations v9fs_file_operations_dotl = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = v9fs_file_read_iter,
.write_iter = v9fs_file_write_iter,
.open = v9fs_file_open,
......@@ -695,8 +687,6 @@ const struct file_operations v9fs_file_operations_dotl = {
const struct file_operations v9fs_mmap_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = v9fs_mmap_file_read_iter,
.write_iter = v9fs_mmap_file_write_iter,
.open = v9fs_file_open,
......@@ -708,8 +698,6 @@ const struct file_operations v9fs_mmap_file_operations = {
const struct file_operations v9fs_mmap_file_operations_dotl = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = v9fs_mmap_file_read_iter,
.write_iter = v9fs_mmap_file_write_iter,
.open = v9fs_file_open,
......
......@@ -23,11 +23,9 @@
const struct file_operations adfs_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.read_iter = generic_file_read_iter,
.mmap = generic_file_mmap,
.fsync = generic_file_fsync,
.write = new_sync_write,
.write_iter = generic_file_write_iter,
.splice_read = generic_file_splice_read,
};
......
......@@ -969,9 +969,7 @@ int affs_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
}
const struct file_operations affs_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.read_iter = generic_file_read_iter,
.write = new_sync_write,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.open = affs_file_open,
......
......@@ -31,8 +31,6 @@ const struct file_operations afs_file_operations = {
.open = afs_open,
.release = afs_release,
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = generic_file_read_iter,
.write_iter = afs_file_write,
.mmap = generic_file_readonly_mmap,
......
......@@ -23,9 +23,7 @@
const struct file_operations bfs_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.read_iter = generic_file_read_iter,
.write = new_sync_write,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.splice_read = generic_file_splice_read,
......
......@@ -1659,8 +1659,6 @@ const struct file_operations def_blk_fops = {
.open = blkdev_open,
.release = blkdev_close,
.llseek = block_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = blkdev_read_iter,
.write_iter = blkdev_write_iter,
.mmap = generic_file_mmap,
......
......@@ -2806,8 +2806,6 @@ out:
const struct file_operations btrfs_file_operations = {
.llseek = btrfs_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = generic_file_read_iter,
.splice_read = generic_file_splice_read,
.write_iter = btrfs_file_write_iter,
......
......@@ -1331,8 +1331,6 @@ const struct file_operations ceph_file_fops = {
.open = ceph_open,
.release = ceph_release,
.llseek = ceph_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = ceph_read_iter,
.write_iter = ceph_write_iter,
.mmap = ceph_mmap,
......
......@@ -906,8 +906,6 @@ const struct inode_operations cifs_symlink_inode_ops = {
};
const struct file_operations cifs_file_ops = {
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cifs_loose_read_iter,
.write_iter = cifs_file_write_iter,
.open = cifs_open,
......@@ -926,8 +924,6 @@ const struct file_operations cifs_file_ops = {
};
const struct file_operations cifs_file_strict_ops = {
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cifs_strict_readv,
.write_iter = cifs_strict_writev,
.open = cifs_open,
......@@ -947,8 +943,6 @@ const struct file_operations cifs_file_strict_ops = {
const struct file_operations cifs_file_direct_ops = {
/* BB reevaluate whether they can be done with directio, no cache */
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cifs_user_readv,
.write_iter = cifs_user_writev,
.open = cifs_open,
......@@ -967,8 +961,6 @@ const struct file_operations cifs_file_direct_ops = {
};
const struct file_operations cifs_file_nobrl_ops = {
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cifs_loose_read_iter,
.write_iter = cifs_file_write_iter,
.open = cifs_open,
......@@ -986,8 +978,6 @@ const struct file_operations cifs_file_nobrl_ops = {
};
const struct file_operations cifs_file_strict_nobrl_ops = {
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cifs_strict_readv,
.write_iter = cifs_strict_writev,
.open = cifs_open,
......@@ -1006,8 +996,6 @@ const struct file_operations cifs_file_strict_nobrl_ops = {
const struct file_operations cifs_file_direct_nobrl_ops = {
/* BB reevaluate whether they can be done with directio, no cache */
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cifs_user_readv,
.write_iter = cifs_user_writev,
.open = cifs_open,
......
......@@ -219,8 +219,6 @@ int coda_fsync(struct file *coda_file, loff_t start, loff_t end, int datasync)
const struct file_operations coda_file_operations = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = coda_file_read_iter,
.write_iter = coda_file_write_iter,
.mmap = coda_file_mmap,
......
......@@ -358,9 +358,7 @@ const struct file_operations ecryptfs_dir_fops = {
const struct file_operations ecryptfs_main_fops = {
.llseek = generic_file_llseek,
.read = new_sync_read,
.read_iter = ecryptfs_read_update_atime,
.write = new_sync_write,
.write_iter = generic_file_write_iter,
.iterate = ecryptfs_readdir,
.unlocked_ioctl = ecryptfs_unlocked_ioctl,
......
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