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Diffstat (limited to 'fs/configfs/inode.c')
-rw-r--r--fs/configfs/inode.c107
1 files changed, 22 insertions, 85 deletions
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index ad718e5e37bb..bcda3372e141 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -1,29 +1,13 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
* inode.c - basic inode and dentry operations.
*
- * This program 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; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program 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 this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- *
* Based on sysfs:
* sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel
*
* configfs Copyright (C) 2005 Oracle. All rights reserved.
*
- * Please see Documentation/filesystems/configfs/configfs.txt for more
+ * Please see Documentation/filesystems/configfs.rst for more
* information.
*/
@@ -44,17 +28,12 @@
static struct lock_class_key default_group_class[MAX_LOCK_DEPTH];
#endif
-static const struct address_space_operations configfs_aops = {
- .readpage = simple_readpage,
- .write_begin = simple_write_begin,
- .write_end = simple_write_end,
-};
-
static const struct inode_operations configfs_inode_operations ={
.setattr = configfs_setattr,
};
-int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
+int configfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
+ struct iattr *iattr)
{
struct inode * inode = d_inode(dentry);
struct configfs_dirent * sd = dentry->d_fsdata;
@@ -81,7 +60,7 @@ int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
}
/* attributes were changed atleast once in past */
- error = simple_setattr(dentry, iattr);
+ error = simple_setattr(idmap, dentry, iattr);
if (error)
return error;
@@ -90,14 +69,11 @@ int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
if (ia_valid & ATTR_GID)
sd_iattr->ia_gid = iattr->ia_gid;
if (ia_valid & ATTR_ATIME)
- sd_iattr->ia_atime = timespec_trunc(iattr->ia_atime,
- inode->i_sb->s_time_gran);
+ sd_iattr->ia_atime = iattr->ia_atime;
if (ia_valid & ATTR_MTIME)
- sd_iattr->ia_mtime = timespec_trunc(iattr->ia_mtime,
- inode->i_sb->s_time_gran);
+ sd_iattr->ia_mtime = iattr->ia_mtime;
if (ia_valid & ATTR_CTIME)
- sd_iattr->ia_ctime = timespec_trunc(iattr->ia_ctime,
- inode->i_sb->s_time_gran);
+ sd_iattr->ia_ctime = iattr->ia_ctime;
if (ia_valid & ATTR_MODE) {
umode_t mode = iattr->ia_mode;
@@ -112,8 +88,7 @@ int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
static inline void set_default_inode_attr(struct inode * inode, umode_t mode)
{
inode->i_mode = mode;
- inode->i_atime = inode->i_mtime =
- inode->i_ctime = current_time(inode);
+ simple_inode_init_ts(inode);
}
static inline void set_inode_attr(struct inode * inode, struct iattr * iattr)
@@ -121,9 +96,9 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr)
inode->i_mode = iattr->ia_mode;
inode->i_uid = iattr->ia_uid;
inode->i_gid = iattr->ia_gid;
- inode->i_atime = iattr->ia_atime;
- inode->i_mtime = iattr->ia_mtime;
- inode->i_ctime = iattr->ia_ctime;
+ inode_set_atime_to_ts(inode, iattr->ia_atime);
+ inode_set_mtime_to_ts(inode, iattr->ia_mtime);
+ inode_set_ctime_to_ts(inode, iattr->ia_ctime);
}
struct inode *configfs_new_inode(umode_t mode, struct configfs_dirent *sd,
@@ -132,7 +107,7 @@ struct inode *configfs_new_inode(umode_t mode, struct configfs_dirent *sd,
struct inode * inode = new_inode(s);
if (inode) {
inode->i_ino = get_next_ino();
- inode->i_mapping->a_ops = &configfs_aops;
+ inode->i_mapping->a_ops = &ram_aops;
inode->i_op = &configfs_inode_operations;
if (sd->s_iattr) {
@@ -178,41 +153,27 @@ static void configfs_set_inode_lock_class(struct configfs_dirent *sd,
#endif /* CONFIG_LOCKDEP */
-int configfs_create(struct dentry * dentry, umode_t mode, void (*init)(struct inode *))
+struct inode *configfs_create(struct dentry *dentry, umode_t mode)
{
- int error = 0;
struct inode *inode = NULL;
struct configfs_dirent *sd;
struct inode *p_inode;
if (!dentry)
- return -ENOENT;
+ return ERR_PTR(-ENOENT);
if (d_really_is_positive(dentry))
- return -EEXIST;
+ return ERR_PTR(-EEXIST);
sd = dentry->d_fsdata;
inode = configfs_new_inode(mode, sd, dentry->d_sb);
if (!inode)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
p_inode = d_inode(dentry->d_parent);
- p_inode->i_mtime = p_inode->i_ctime = current_time(p_inode);
+ inode_set_mtime_to_ts(p_inode, inode_set_ctime_current(p_inode));
configfs_set_inode_lock_class(sd, inode);
-
- init(inode);
- if (S_ISDIR(mode) || S_ISLNK(mode)) {
- /*
- * ->symlink(), ->mkdir(), configfs_register_subsystem() or
- * create_default_group() - already hashed.
- */
- d_instantiate(dentry, inode);
- dget(dentry); /* pin link and directory dentries in core */
- } else {
- /* ->lookup() */
- d_add(dentry, inode);
- }
- return error;
+ return inode;
}
/*
@@ -250,33 +211,9 @@ void configfs_drop_dentry(struct configfs_dirent * sd, struct dentry * parent)
dget_dlock(dentry);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
- simple_unlink(d_inode(parent), dentry);
+ __simple_unlink(d_inode(parent), dentry);
+ dput(dentry);
} else
spin_unlock(&dentry->d_lock);
}
}
-
-void configfs_hash_and_remove(struct dentry * dir, const char * name)
-{
- struct configfs_dirent * sd;
- struct configfs_dirent * parent_sd = dir->d_fsdata;
-
- if (d_really_is_negative(dir))
- /* no inode means this hasn't been made visible yet */
- return;
-
- inode_lock(d_inode(dir));
- list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {
- if (!sd->s_element)
- continue;
- if (!strcmp(configfs_get_name(sd), name)) {
- spin_lock(&configfs_dirent_lock);
- list_del_init(&sd->s_sibling);
- spin_unlock(&configfs_dirent_lock);
- configfs_drop_dentry(sd, dir);
- configfs_put(sd);
- break;
- }
- }
- inode_unlock(d_inode(dir));
-}
generated by cgit (git 2.34.1) at 2025-12-24 21:41:09 +0000