sysfs, kernfs: move inode code to fs/kernfs/inode.c
There's nothing sysfs-specific in fs/sysfs/inode.c. Move everything in it to fs/kernfs/inode.c. The respective declarations in fs/sysfs/sysfs.h are moved to fs/kernfs/kernfs-internal.h. This is pure relocation. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo
Greg Kroah-Hartman
Родитель
ae6621b071
Коммит
ffed24e228
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@ -7,3 +7,330 @@
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*
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* This file is released under the GPLv2.
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*/
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#include <linux/pagemap.h>
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#include <linux/backing-dev.h>
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#include <linux/capability.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/xattr.h>
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#include <linux/security.h>
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#include "kernfs-internal.h"
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static const struct address_space_operations sysfs_aops = {
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.readpage = simple_readpage,
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.write_begin = simple_write_begin,
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.write_end = simple_write_end,
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};
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static struct backing_dev_info sysfs_backing_dev_info = {
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.name = "sysfs",
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.ra_pages = 0, /* No readahead */
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.capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
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};
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static const struct inode_operations sysfs_inode_operations = {
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.permission = sysfs_permission,
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.setattr = sysfs_setattr,
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.getattr = sysfs_getattr,
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.setxattr = sysfs_setxattr,
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};
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int __init sysfs_inode_init(void)
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{
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return bdi_init(&sysfs_backing_dev_info);
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}
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static struct sysfs_inode_attrs *sysfs_init_inode_attrs(struct sysfs_dirent *sd)
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{
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struct sysfs_inode_attrs *attrs;
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struct iattr *iattrs;
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attrs = kzalloc(sizeof(struct sysfs_inode_attrs), GFP_KERNEL);
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if (!attrs)
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return NULL;
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iattrs = &attrs->ia_iattr;
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/* assign default attributes */
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iattrs->ia_mode = sd->s_mode;
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iattrs->ia_uid = GLOBAL_ROOT_UID;
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iattrs->ia_gid = GLOBAL_ROOT_GID;
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iattrs->ia_atime = iattrs->ia_mtime = iattrs->ia_ctime = CURRENT_TIME;
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return attrs;
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}
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static int __kernfs_setattr(struct sysfs_dirent *sd, const struct iattr *iattr)
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{
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struct sysfs_inode_attrs *sd_attrs;
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struct iattr *iattrs;
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unsigned int ia_valid = iattr->ia_valid;
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sd_attrs = sd->s_iattr;
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if (!sd_attrs) {
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/* setting attributes for the first time, allocate now */
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sd_attrs = sysfs_init_inode_attrs(sd);
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if (!sd_attrs)
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return -ENOMEM;
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sd->s_iattr = sd_attrs;
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}
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/* attributes were changed at least once in past */
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iattrs = &sd_attrs->ia_iattr;
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if (ia_valid & ATTR_UID)
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iattrs->ia_uid = iattr->ia_uid;
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if (ia_valid & ATTR_GID)
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iattrs->ia_gid = iattr->ia_gid;
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if (ia_valid & ATTR_ATIME)
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iattrs->ia_atime = iattr->ia_atime;
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if (ia_valid & ATTR_MTIME)
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iattrs->ia_mtime = iattr->ia_mtime;
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if (ia_valid & ATTR_CTIME)
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iattrs->ia_ctime = iattr->ia_ctime;
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if (ia_valid & ATTR_MODE) {
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umode_t mode = iattr->ia_mode;
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iattrs->ia_mode = sd->s_mode = mode;
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}
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return 0;
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}
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/**
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* kernfs_setattr - set iattr on a node
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* @sd: target node
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* @iattr: iattr to set
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*
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* Returns 0 on success, -errno on failure.
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*/
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int kernfs_setattr(struct sysfs_dirent *sd, const struct iattr *iattr)
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{
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int ret;
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mutex_lock(&sysfs_mutex);
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ret = __kernfs_setattr(sd, iattr);
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mutex_unlock(&sysfs_mutex);
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return ret;
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}
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int sysfs_setattr(struct dentry *dentry, struct iattr *iattr)
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{
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struct inode *inode = dentry->d_inode;
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struct sysfs_dirent *sd = dentry->d_fsdata;
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int error;
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if (!sd)
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return -EINVAL;
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mutex_lock(&sysfs_mutex);
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error = inode_change_ok(inode, iattr);
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if (error)
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goto out;
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error = __kernfs_setattr(sd, iattr);
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if (error)
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goto out;
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/* this ignores size changes */
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setattr_copy(inode, iattr);
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out:
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mutex_unlock(&sysfs_mutex);
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return error;
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}
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static int sysfs_sd_setsecdata(struct sysfs_dirent *sd, void **secdata,
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u32 *secdata_len)
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{
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struct sysfs_inode_attrs *iattrs;
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void *old_secdata;
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size_t old_secdata_len;
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if (!sd->s_iattr) {
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sd->s_iattr = sysfs_init_inode_attrs(sd);
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if (!sd->s_iattr)
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return -ENOMEM;
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}
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iattrs = sd->s_iattr;
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old_secdata = iattrs->ia_secdata;
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old_secdata_len = iattrs->ia_secdata_len;
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iattrs->ia_secdata = *secdata;
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iattrs->ia_secdata_len = *secdata_len;
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*secdata = old_secdata;
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*secdata_len = old_secdata_len;
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return 0;
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}
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int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
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size_t size, int flags)
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{
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struct sysfs_dirent *sd = dentry->d_fsdata;
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void *secdata;
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int error;
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u32 secdata_len = 0;
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if (!sd)
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return -EINVAL;
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if (!strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN)) {
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const char *suffix = name + XATTR_SECURITY_PREFIX_LEN;
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error = security_inode_setsecurity(dentry->d_inode, suffix,
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value, size, flags);
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if (error)
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goto out;
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error = security_inode_getsecctx(dentry->d_inode,
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&secdata, &secdata_len);
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if (error)
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goto out;
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mutex_lock(&sysfs_mutex);
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error = sysfs_sd_setsecdata(sd, &secdata, &secdata_len);
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mutex_unlock(&sysfs_mutex);
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if (secdata)
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security_release_secctx(secdata, secdata_len);
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} else
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return -EINVAL;
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out:
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return error;
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}
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static inline void set_default_inode_attr(struct inode *inode, umode_t mode)
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{
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inode->i_mode = mode;
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inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
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}
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static inline void set_inode_attr(struct inode *inode, struct iattr *iattr)
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{
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inode->i_uid = iattr->ia_uid;
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inode->i_gid = iattr->ia_gid;
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inode->i_atime = iattr->ia_atime;
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inode->i_mtime = iattr->ia_mtime;
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inode->i_ctime = iattr->ia_ctime;
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}
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static void sysfs_refresh_inode(struct sysfs_dirent *sd, struct inode *inode)
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{
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struct sysfs_inode_attrs *iattrs = sd->s_iattr;
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inode->i_mode = sd->s_mode;
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if (iattrs) {
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/* sysfs_dirent has non-default attributes
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* get them from persistent copy in sysfs_dirent
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*/
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set_inode_attr(inode, &iattrs->ia_iattr);
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security_inode_notifysecctx(inode,
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iattrs->ia_secdata,
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iattrs->ia_secdata_len);
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}
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if (sysfs_type(sd) == SYSFS_DIR)
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set_nlink(inode, sd->s_dir.subdirs + 2);
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}
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int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
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struct kstat *stat)
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{
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struct sysfs_dirent *sd = dentry->d_fsdata;
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struct inode *inode = dentry->d_inode;
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mutex_lock(&sysfs_mutex);
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sysfs_refresh_inode(sd, inode);
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mutex_unlock(&sysfs_mutex);
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generic_fillattr(inode, stat);
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return 0;
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}
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static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
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{
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kernfs_get(sd);
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inode->i_private = sd;
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inode->i_mapping->a_ops = &sysfs_aops;
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inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info;
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inode->i_op = &sysfs_inode_operations;
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set_default_inode_attr(inode, sd->s_mode);
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sysfs_refresh_inode(sd, inode);
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/* initialize inode according to type */
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switch (sysfs_type(sd)) {
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case SYSFS_DIR:
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inode->i_op = &sysfs_dir_inode_operations;
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inode->i_fop = &sysfs_dir_operations;
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break;
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case SYSFS_KOBJ_ATTR:
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inode->i_size = sd->s_attr.size;
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inode->i_fop = &kernfs_file_operations;
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break;
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case SYSFS_KOBJ_LINK:
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inode->i_op = &sysfs_symlink_inode_operations;
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break;
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default:
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BUG();
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}
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unlock_new_inode(inode);
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}
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/**
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* sysfs_get_inode - get inode for sysfs_dirent
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* @sb: super block
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* @sd: sysfs_dirent to allocate inode for
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*
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* Get inode for @sd. If such inode doesn't exist, a new inode
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* is allocated and basics are initialized. New inode is
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* returned locked.
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*
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* LOCKING:
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* Kernel thread context (may sleep).
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*
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* RETURNS:
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* Pointer to allocated inode on success, NULL on failure.
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*/
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struct inode *sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd)
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{
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struct inode *inode;
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inode = iget_locked(sb, sd->s_ino);
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if (inode && (inode->i_state & I_NEW))
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sysfs_init_inode(sd, inode);
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return inode;
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}
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/*
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* The sysfs_dirent serves as both an inode and a directory entry for sysfs.
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* To prevent the sysfs inode numbers from being freed prematurely we take a
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* reference to sysfs_dirent from the sysfs inode. A
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* super_operations.evict_inode() implementation is needed to drop that
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* reference upon inode destruction.
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*/
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void sysfs_evict_inode(struct inode *inode)
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{
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struct sysfs_dirent *sd = inode->i_private;
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truncate_inode_pages(&inode->i_data, 0);
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clear_inode(inode);
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kernfs_put(sd);
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}
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int sysfs_permission(struct inode *inode, int mask)
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{
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struct sysfs_dirent *sd;
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if (mask & MAY_NOT_BLOCK)
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return -ECHILD;
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sd = inode->i_private;
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mutex_lock(&sysfs_mutex);
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sysfs_refresh_inode(sd, inode);
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mutex_unlock(&sysfs_mutex);
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return generic_permission(inode, mask);
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}
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@ -112,4 +112,17 @@ struct sysfs_addrm_cxt {
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#include "../sysfs/sysfs.h"
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/*
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* inode.c
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*/
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struct inode *sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd);
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void sysfs_evict_inode(struct inode *inode);
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int sysfs_permission(struct inode *inode, int mask);
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int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
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int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
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struct kstat *stat);
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int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
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size_t size, int flags);
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int sysfs_inode_init(void);
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#endif /* __KERNFS_INTERNAL_H */
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@ -2,4 +2,4 @@
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# Makefile for the sysfs virtual filesystem
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#
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obj-y := inode.o file.o dir.o symlink.o mount.o group.o
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obj-y := file.o dir.o symlink.o mount.o group.o
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|
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342
fs/sysfs/inode.c
342
fs/sysfs/inode.c
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@ -1,342 +0,0 @@
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/*
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* fs/sysfs/inode.c - basic sysfs inode and dentry operations
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*
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* Copyright (c) 2001-3 Patrick Mochel
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* Copyright (c) 2007 SUSE Linux Products GmbH
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* Copyright (c) 2007 Tejun Heo <teheo@suse.de>
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*
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* This file is released under the GPLv2.
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*
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* Please see Documentation/filesystems/sysfs.txt for more information.
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*/
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#undef DEBUG
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#include <linux/pagemap.h>
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#include <linux/namei.h>
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#include <linux/backing-dev.h>
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#include <linux/capability.h>
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#include <linux/errno.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/sysfs.h>
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#include <linux/xattr.h>
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#include <linux/security.h>
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#include "sysfs.h"
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|
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static const struct address_space_operations sysfs_aops = {
|
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.readpage = simple_readpage,
|
||||
.write_begin = simple_write_begin,
|
||||
.write_end = simple_write_end,
|
||||
};
|
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|
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static struct backing_dev_info sysfs_backing_dev_info = {
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.name = "sysfs",
|
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.ra_pages = 0, /* No readahead */
|
||||
.capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
|
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};
|
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|
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static const struct inode_operations sysfs_inode_operations = {
|
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.permission = sysfs_permission,
|
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.setattr = sysfs_setattr,
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.getattr = sysfs_getattr,
|
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.setxattr = sysfs_setxattr,
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};
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int __init sysfs_inode_init(void)
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{
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return bdi_init(&sysfs_backing_dev_info);
|
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}
|
||||
|
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static struct sysfs_inode_attrs *sysfs_init_inode_attrs(struct sysfs_dirent *sd)
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{
|
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struct sysfs_inode_attrs *attrs;
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struct iattr *iattrs;
|
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|
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attrs = kzalloc(sizeof(struct sysfs_inode_attrs), GFP_KERNEL);
|
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if (!attrs)
|
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return NULL;
|
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iattrs = &attrs->ia_iattr;
|
||||
|
||||
/* assign default attributes */
|
||||
iattrs->ia_mode = sd->s_mode;
|
||||
iattrs->ia_uid = GLOBAL_ROOT_UID;
|
||||
iattrs->ia_gid = GLOBAL_ROOT_GID;
|
||||
iattrs->ia_atime = iattrs->ia_mtime = iattrs->ia_ctime = CURRENT_TIME;
|
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|
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return attrs;
|
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}
|
||||
|
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static int __kernfs_setattr(struct sysfs_dirent *sd, const struct iattr *iattr)
|
||||
{
|
||||
struct sysfs_inode_attrs *sd_attrs;
|
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struct iattr *iattrs;
|
||||
unsigned int ia_valid = iattr->ia_valid;
|
||||
|
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sd_attrs = sd->s_iattr;
|
||||
|
||||
if (!sd_attrs) {
|
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/* setting attributes for the first time, allocate now */
|
||||
sd_attrs = sysfs_init_inode_attrs(sd);
|
||||
if (!sd_attrs)
|
||||
return -ENOMEM;
|
||||
sd->s_iattr = sd_attrs;
|
||||
}
|
||||
/* attributes were changed at least once in past */
|
||||
iattrs = &sd_attrs->ia_iattr;
|
||||
|
||||
if (ia_valid & ATTR_UID)
|
||||
iattrs->ia_uid = iattr->ia_uid;
|
||||
if (ia_valid & ATTR_GID)
|
||||
iattrs->ia_gid = iattr->ia_gid;
|
||||
if (ia_valid & ATTR_ATIME)
|
||||
iattrs->ia_atime = iattr->ia_atime;
|
||||
if (ia_valid & ATTR_MTIME)
|
||||
iattrs->ia_mtime = iattr->ia_mtime;
|
||||
if (ia_valid & ATTR_CTIME)
|
||||
iattrs->ia_ctime = iattr->ia_ctime;
|
||||
if (ia_valid & ATTR_MODE) {
|
||||
umode_t mode = iattr->ia_mode;
|
||||
iattrs->ia_mode = sd->s_mode = mode;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* kernfs_setattr - set iattr on a node
|
||||
* @sd: target node
|
||||
* @iattr: iattr to set
|
||||
*
|
||||
* Returns 0 on success, -errno on failure.
|
||||
*/
|
||||
int kernfs_setattr(struct sysfs_dirent *sd, const struct iattr *iattr)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&sysfs_mutex);
|
||||
ret = __kernfs_setattr(sd, iattr);
|
||||
mutex_unlock(&sysfs_mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int sysfs_setattr(struct dentry *dentry, struct iattr *iattr)
|
||||
{
|
||||
struct inode *inode = dentry->d_inode;
|
||||
struct sysfs_dirent *sd = dentry->d_fsdata;
|
||||
int error;
|
||||
|
||||
if (!sd)
|
||||
return -EINVAL;
|
||||
|
||||
mutex_lock(&sysfs_mutex);
|
||||
error = inode_change_ok(inode, iattr);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
error = __kernfs_setattr(sd, iattr);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
/* this ignores size changes */
|
||||
setattr_copy(inode, iattr);
|
||||
|
||||
out:
|
||||
mutex_unlock(&sysfs_mutex);
|
||||
return error;
|
||||
}
|
||||
|
||||
static int sysfs_sd_setsecdata(struct sysfs_dirent *sd, void **secdata,
|
||||
u32 *secdata_len)
|
||||
{
|
||||
struct sysfs_inode_attrs *iattrs;
|
||||
void *old_secdata;
|
||||
size_t old_secdata_len;
|
||||
|
||||
if (!sd->s_iattr) {
|
||||
sd->s_iattr = sysfs_init_inode_attrs(sd);
|
||||
if (!sd->s_iattr)
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
iattrs = sd->s_iattr;
|
||||
old_secdata = iattrs->ia_secdata;
|
||||
old_secdata_len = iattrs->ia_secdata_len;
|
||||
|
||||
iattrs->ia_secdata = *secdata;
|
||||
iattrs->ia_secdata_len = *secdata_len;
|
||||
|
||||
*secdata = old_secdata;
|
||||
*secdata_len = old_secdata_len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
|
||||
size_t size, int flags)
|
||||
{
|
||||
struct sysfs_dirent *sd = dentry->d_fsdata;
|
||||
void *secdata;
|
||||
int error;
|
||||
u32 secdata_len = 0;
|
||||
|
||||
if (!sd)
|
||||
return -EINVAL;
|
||||
|
||||
if (!strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN)) {
|
||||
const char *suffix = name + XATTR_SECURITY_PREFIX_LEN;
|
||||
error = security_inode_setsecurity(dentry->d_inode, suffix,
|
||||
value, size, flags);
|
||||
if (error)
|
||||
goto out;
|
||||
error = security_inode_getsecctx(dentry->d_inode,
|
||||
&secdata, &secdata_len);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
mutex_lock(&sysfs_mutex);
|
||||
error = sysfs_sd_setsecdata(sd, &secdata, &secdata_len);
|
||||
mutex_unlock(&sysfs_mutex);
|
||||
|
||||
if (secdata)
|
||||
security_release_secctx(secdata, secdata_len);
|
||||
} else
|
||||
return -EINVAL;
|
||||
out:
|
||||
return error;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
static inline void set_inode_attr(struct inode *inode, struct iattr *iattr)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
static void sysfs_refresh_inode(struct sysfs_dirent *sd, struct inode *inode)
|
||||
{
|
||||
struct sysfs_inode_attrs *iattrs = sd->s_iattr;
|
||||
|
||||
inode->i_mode = sd->s_mode;
|
||||
if (iattrs) {
|
||||
/* sysfs_dirent has non-default attributes
|
||||
* get them from persistent copy in sysfs_dirent
|
||||
*/
|
||||
set_inode_attr(inode, &iattrs->ia_iattr);
|
||||
security_inode_notifysecctx(inode,
|
||||
iattrs->ia_secdata,
|
||||
iattrs->ia_secdata_len);
|
||||
}
|
||||
|
||||
if (sysfs_type(sd) == SYSFS_DIR)
|
||||
set_nlink(inode, sd->s_dir.subdirs + 2);
|
||||
}
|
||||
|
||||
int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
|
||||
struct kstat *stat)
|
||||
{
|
||||
struct sysfs_dirent *sd = dentry->d_fsdata;
|
||||
struct inode *inode = dentry->d_inode;
|
||||
|
||||
mutex_lock(&sysfs_mutex);
|
||||
sysfs_refresh_inode(sd, inode);
|
||||
mutex_unlock(&sysfs_mutex);
|
||||
|
||||
generic_fillattr(inode, stat);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
|
||||
{
|
||||
kernfs_get(sd);
|
||||
inode->i_private = sd;
|
||||
inode->i_mapping->a_ops = &sysfs_aops;
|
||||
inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info;
|
||||
inode->i_op = &sysfs_inode_operations;
|
||||
|
||||
set_default_inode_attr(inode, sd->s_mode);
|
||||
sysfs_refresh_inode(sd, inode);
|
||||
|
||||
/* initialize inode according to type */
|
||||
switch (sysfs_type(sd)) {
|
||||
case SYSFS_DIR:
|
||||
inode->i_op = &sysfs_dir_inode_operations;
|
||||
inode->i_fop = &sysfs_dir_operations;
|
||||
break;
|
||||
case SYSFS_KOBJ_ATTR:
|
||||
inode->i_size = sd->s_attr.size;
|
||||
inode->i_fop = &kernfs_file_operations;
|
||||
break;
|
||||
case SYSFS_KOBJ_LINK:
|
||||
inode->i_op = &sysfs_symlink_inode_operations;
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
|
||||
unlock_new_inode(inode);
|
||||
}
|
||||
|
||||
/**
|
||||
* sysfs_get_inode - get inode for sysfs_dirent
|
||||
* @sb: super block
|
||||
* @sd: sysfs_dirent to allocate inode for
|
||||
*
|
||||
* Get inode for @sd. If such inode doesn't exist, a new inode
|
||||
* is allocated and basics are initialized. New inode is
|
||||
* returned locked.
|
||||
*
|
||||
* LOCKING:
|
||||
* Kernel thread context (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Pointer to allocated inode on success, NULL on failure.
|
||||
*/
|
||||
struct inode *sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd)
|
||||
{
|
||||
struct inode *inode;
|
||||
|
||||
inode = iget_locked(sb, sd->s_ino);
|
||||
if (inode && (inode->i_state & I_NEW))
|
||||
sysfs_init_inode(sd, inode);
|
||||
|
||||
return inode;
|
||||
}
|
||||
|
||||
/*
|
||||
* The sysfs_dirent serves as both an inode and a directory entry for sysfs.
|
||||
* To prevent the sysfs inode numbers from being freed prematurely we take a
|
||||
* reference to sysfs_dirent from the sysfs inode. A
|
||||
* super_operations.evict_inode() implementation is needed to drop that
|
||||
* reference upon inode destruction.
|
||||
*/
|
||||
void sysfs_evict_inode(struct inode *inode)
|
||||
{
|
||||
struct sysfs_dirent *sd = inode->i_private;
|
||||
|
||||
truncate_inode_pages(&inode->i_data, 0);
|
||||
clear_inode(inode);
|
||||
kernfs_put(sd);
|
||||
}
|
||||
|
||||
int sysfs_permission(struct inode *inode, int mask)
|
||||
{
|
||||
struct sysfs_dirent *sd;
|
||||
|
||||
if (mask & MAY_NOT_BLOCK)
|
||||
return -ECHILD;
|
||||
|
||||
sd = inode->i_private;
|
||||
|
||||
mutex_lock(&sysfs_mutex);
|
||||
sysfs_refresh_inode(sd, inode);
|
||||
mutex_unlock(&sysfs_mutex);
|
||||
|
||||
return generic_permission(inode, mask);
|
||||
}
|
||||
|
|
@ -51,19 +51,6 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
|
|||
|
||||
struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type);
|
||||
|
||||
/*
|
||||
* inode.c
|
||||
*/
|
||||
struct inode *sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd);
|
||||
void sysfs_evict_inode(struct inode *inode);
|
||||
int sysfs_permission(struct inode *inode, int mask);
|
||||
int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
|
||||
int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
|
||||
struct kstat *stat);
|
||||
int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
|
||||
size_t size, int flags);
|
||||
int sysfs_inode_init(void);
|
||||
|
||||
/*
|
||||
* file.c
|
||||
*/
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче