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authorChristoph Hellwig <hch@lst.de>2019-01-29 09:32:30 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2019-02-05 21:28:13 -0500
commit80f2121380caa14895638b24b81800158c0844f2 (patch)
treefb042eef94e895eb93deb9a64de783e12272115c /fs/exofs/namei.c
parent972248e9111ee6fe9fb56c24ecfd7434f3d713ac (diff)
downloadlinux-80f2121380caa14895638b24b81800158c0844f2.tar.bz2
scsi: fs: remove exofs
This was an example for using the SCSI OSD protocol, which we're trying to remove. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'fs/exofs/namei.c')
-rw-r--r--fs/exofs/namei.c323
1 files changed, 0 insertions, 323 deletions
diff --git a/fs/exofs/namei.c b/fs/exofs/namei.c
deleted file mode 100644
index 7295cd722770..000000000000
--- a/fs/exofs/namei.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * Copyright (C) 2005, 2006
- * Avishay Traeger (avishay@gmail.com)
- * Copyright (C) 2008, 2009
- * Boaz Harrosh <ooo@electrozaur.com>
- *
- * Copyrights for code taken from ext2:
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- * from
- * linux/fs/minix/inode.c
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * This file is part of exofs.
- *
- * exofs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation. Since it is based on ext2, and the only
- * valid version of GPL for the Linux kernel is version 2, the only valid
- * version of GPL for exofs is version 2.
- *
- * exofs is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with exofs; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "exofs.h"
-
-static inline int exofs_add_nondir(struct dentry *dentry, struct inode *inode)
-{
- int err = exofs_add_link(dentry, inode);
- if (!err) {
- d_instantiate(dentry, inode);
- return 0;
- }
- inode_dec_link_count(inode);
- iput(inode);
- return err;
-}
-
-static struct dentry *exofs_lookup(struct inode *dir, struct dentry *dentry,
- unsigned int flags)
-{
- struct inode *inode;
- ino_t ino;
-
- if (dentry->d_name.len > EXOFS_NAME_LEN)
- return ERR_PTR(-ENAMETOOLONG);
-
- ino = exofs_inode_by_name(dir, dentry);
- inode = ino ? exofs_iget(dir->i_sb, ino) : NULL;
- return d_splice_alias(inode, dentry);
-}
-
-static int exofs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
- bool excl)
-{
- struct inode *inode = exofs_new_inode(dir, mode);
- int err = PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- inode->i_op = &exofs_file_inode_operations;
- inode->i_fop = &exofs_file_operations;
- inode->i_mapping->a_ops = &exofs_aops;
- mark_inode_dirty(inode);
- err = exofs_add_nondir(dentry, inode);
- }
- return err;
-}
-
-static int exofs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
- dev_t rdev)
-{
- struct inode *inode;
- int err;
-
- inode = exofs_new_inode(dir, mode);
- err = PTR_ERR(inode);
- if (!IS_ERR(inode)) {
- init_special_inode(inode, inode->i_mode, rdev);
- mark_inode_dirty(inode);
- err = exofs_add_nondir(dentry, inode);
- }
- return err;
-}
-
-static int exofs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
-{
- struct super_block *sb = dir->i_sb;
- int err = -ENAMETOOLONG;
- unsigned l = strlen(symname)+1;
- struct inode *inode;
- struct exofs_i_info *oi;
-
- if (l > sb->s_blocksize)
- goto out;
-
- inode = exofs_new_inode(dir, S_IFLNK | S_IRWXUGO);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- goto out;
-
- oi = exofs_i(inode);
- if (l > sizeof(oi->i_data)) {
- /* slow symlink */
- inode->i_op = &page_symlink_inode_operations;
- inode_nohighmem(inode);
- inode->i_mapping->a_ops = &exofs_aops;
- memset(oi->i_data, 0, sizeof(oi->i_data));
-
- err = page_symlink(inode, symname, l);
- if (err)
- goto out_fail;
- } else {
- /* fast symlink */
- inode->i_op = &simple_symlink_inode_operations;
- inode->i_link = (char *)oi->i_data;
- memcpy(oi->i_data, symname, l);
- inode->i_size = l-1;
- }
- mark_inode_dirty(inode);
-
- err = exofs_add_nondir(dentry, inode);
-out:
- return err;
-
-out_fail:
- inode_dec_link_count(inode);
- iput(inode);
- goto out;
-}
-
-static int exofs_link(struct dentry *old_dentry, struct inode *dir,
- struct dentry *dentry)
-{
- struct inode *inode = d_inode(old_dentry);
-
- inode->i_ctime = current_time(inode);
- inode_inc_link_count(inode);
- ihold(inode);
-
- return exofs_add_nondir(dentry, inode);
-}
-
-static int exofs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
-{
- struct inode *inode;
- int err;
-
- inode_inc_link_count(dir);
-
- inode = exofs_new_inode(dir, S_IFDIR | mode);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- goto out_dir;
-
- inode->i_op = &exofs_dir_inode_operations;
- inode->i_fop = &exofs_dir_operations;
- inode->i_mapping->a_ops = &exofs_aops;
-
- inode_inc_link_count(inode);
-
- err = exofs_make_empty(inode, dir);
- if (err)
- goto out_fail;
-
- err = exofs_add_link(dentry, inode);
- if (err)
- goto out_fail;
-
- d_instantiate(dentry, inode);
-out:
- return err;
-
-out_fail:
- inode_dec_link_count(inode);
- inode_dec_link_count(inode);
- iput(inode);
-out_dir:
- inode_dec_link_count(dir);
- goto out;
-}
-
-static int exofs_unlink(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = d_inode(dentry);
- struct exofs_dir_entry *de;
- struct page *page;
- int err = -ENOENT;
-
- de = exofs_find_entry(dir, dentry, &page);
- if (!de)
- goto out;
-
- err = exofs_delete_entry(de, page);
- if (err)
- goto out;
-
- inode->i_ctime = dir->i_ctime;
- inode_dec_link_count(inode);
- err = 0;
-out:
- return err;
-}
-
-static int exofs_rmdir(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = d_inode(dentry);
- int err = -ENOTEMPTY;
-
- if (exofs_empty_dir(inode)) {
- err = exofs_unlink(dir, dentry);
- if (!err) {
- inode->i_size = 0;
- inode_dec_link_count(inode);
- inode_dec_link_count(dir);
- }
- }
- return err;
-}
-
-static int exofs_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry,
- unsigned int flags)
-{
- struct inode *old_inode = d_inode(old_dentry);
- struct inode *new_inode = d_inode(new_dentry);
- struct page *dir_page = NULL;
- struct exofs_dir_entry *dir_de = NULL;
- struct page *old_page;
- struct exofs_dir_entry *old_de;
- int err = -ENOENT;
-
- if (flags & ~RENAME_NOREPLACE)
- return -EINVAL;
-
- old_de = exofs_find_entry(old_dir, old_dentry, &old_page);
- if (!old_de)
- goto out;
-
- if (S_ISDIR(old_inode->i_mode)) {
- err = -EIO;
- dir_de = exofs_dotdot(old_inode, &dir_page);
- if (!dir_de)
- goto out_old;
- }
-
- if (new_inode) {
- struct page *new_page;
- struct exofs_dir_entry *new_de;
-
- err = -ENOTEMPTY;
- if (dir_de && !exofs_empty_dir(new_inode))
- goto out_dir;
-
- err = -ENOENT;
- new_de = exofs_find_entry(new_dir, new_dentry, &new_page);
- if (!new_de)
- goto out_dir;
- err = exofs_set_link(new_dir, new_de, new_page, old_inode);
- new_inode->i_ctime = current_time(new_inode);
- if (dir_de)
- drop_nlink(new_inode);
- inode_dec_link_count(new_inode);
- if (err)
- goto out_dir;
- } else {
- err = exofs_add_link(new_dentry, old_inode);
- if (err)
- goto out_dir;
- if (dir_de)
- inode_inc_link_count(new_dir);
- }
-
- old_inode->i_ctime = current_time(old_inode);
-
- exofs_delete_entry(old_de, old_page);
- mark_inode_dirty(old_inode);
-
- if (dir_de) {
- err = exofs_set_link(old_inode, dir_de, dir_page, new_dir);
- inode_dec_link_count(old_dir);
- if (err)
- goto out_dir;
- }
- return 0;
-
-
-out_dir:
- if (dir_de) {
- kunmap(dir_page);
- put_page(dir_page);
- }
-out_old:
- kunmap(old_page);
- put_page(old_page);
-out:
- return err;
-}
-
-const struct inode_operations exofs_dir_inode_operations = {
- .create = exofs_create,
- .lookup = exofs_lookup,
- .link = exofs_link,
- .unlink = exofs_unlink,
- .symlink = exofs_symlink,
- .mkdir = exofs_mkdir,
- .rmdir = exofs_rmdir,
- .mknod = exofs_mknod,
- .rename = exofs_rename,
- .setattr = exofs_setattr,
-};
-
-const struct inode_operations exofs_special_inode_operations = {
- .setattr = exofs_setattr,
-};