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->getxattr(): pass dentry and inode as separate arguments

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2016-04-11 00:48:00 -04:00
parent b296821a7c
commit ce23e64013
34 changed files with 94 additions and 85 deletions
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6
Documentation/filesystems/porting
View File

@@ -525,3 +525,9 @@ in your dentry operations instead.
set_delayed_call() where it used to set *cookie.
->put_link() is gone - just give the destructor to set_delayed_call()
in ->get_link().
--
[mandatory]
->getxattr() and xattr_handler.get() get dentry and inode passed separately.
dentry might be yet to be attached to inode, so do _not_ use its ->d_inode
in the instances. Rationale: !@#!@# security_d_instantiate() needs to be
called before we attach dentry to inode.

4
drivers/staging/lustre/lustre/llite/llite_internal.h
View File

@@ -1042,8 +1042,8 @@ static inline __u64 ll_file_maxbytes(struct inode *inode)
/* llite/xattr.c */
int ll_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
ssize_t ll_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size);
ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *buffer, size_t size);
ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size);
int ll_removexattr(struct dentry *dentry, const char *name);

6
drivers/staging/lustre/lustre/llite/xattr.c
View File

@@ -451,11 +451,9 @@ out:
return rc;
}
ssize_t ll_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size)
ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *buffer, size_t size)
{
struct inode *inode = d_inode(dentry);
LASSERT(inode);
LASSERT(name);

4
fs/bad_inode.c
View File

@@ -106,8 +106,8 @@ static int bad_inode_setxattr(struct dentry *dentry, const char *name,
return -EIO;
}
static ssize_t bad_inode_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size)
static ssize_t bad_inode_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *buffer, size_t size)
{
return -EIO;
}

2
fs/ceph/super.h
View File

@@ -795,7 +795,7 @@ extern int ceph_setxattr(struct dentry *, const char *, const void *,
int __ceph_setxattr(struct dentry *, const char *, const void *, size_t, int);
ssize_t __ceph_getxattr(struct inode *, const char *, void *, size_t);
int __ceph_removexattr(struct dentry *, const char *);
extern ssize_t ceph_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t ceph_getxattr(struct dentry *, struct inode *, const char *, void *, size_t);
extern ssize_t ceph_listxattr(struct dentry *, char *, size_t);
extern int ceph_removexattr(struct dentry *, const char *);
extern void __ceph_build_xattrs_blob(struct ceph_inode_info *ci);

8
fs/ceph/xattr.c
View File

@@ -804,13 +804,13 @@ out:
return err;
}
ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value,
size_t size)
ssize_t ceph_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size)
{
if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
return generic_getxattr(dentry, name, value, size);
return generic_getxattr(dentry, inode, name, value, size);
return __ceph_getxattr(d_inode(dentry), name, value, size);
return __ceph_getxattr(inode, name, value, size);
}
ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)

2
fs/cifs/cifsfs.h
View File

@@ -123,7 +123,7 @@ extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
extern int cifs_removexattr(struct dentry *, const char *);
extern int cifs_setxattr(struct dentry *, const char *, const void *,
size_t, int);
extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t cifs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t);
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
#ifdef CONFIG_CIFS_NFSD_EXPORT

6
fs/cifs/xattr.c
View File

@@ -213,8 +213,8 @@ set_ea_exit:
return rc;
}
ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
void *ea_value, size_t buf_size)
ssize_t cifs_getxattr(struct dentry *direntry, struct inode *inode,
const char *ea_name, void *ea_value, size_t buf_size)
{
ssize_t rc = -EOPNOTSUPP;
#ifdef CONFIG_CIFS_XATTR
@@ -296,7 +296,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,
goto get_ea_exit; /* rc already EOPNOTSUPP */
pacl = pTcon->ses->server->ops->get_acl(cifs_sb,
d_inode(direntry), full_path, &acllen);
inode, full_path, &acllen);
if (IS_ERR(pacl)) {
rc = PTR_ERR(pacl);
cifs_dbg(VFS, "%s: error %zd getting sec desc\n",

5
fs/ecryptfs/crypto.c
View File

@@ -1369,7 +1369,9 @@ int ecryptfs_read_xattr_region(char *page_virt, struct inode *ecryptfs_inode)
ssize_t size;
int rc = 0;
size = ecryptfs_getxattr_lower(lower_dentry, ECRYPTFS_XATTR_NAME,
size = ecryptfs_getxattr_lower(lower_dentry,
ecryptfs_inode_to_lower(ecryptfs_inode),
ECRYPTFS_XATTR_NAME,
page_virt, ECRYPTFS_DEFAULT_EXTENT_SIZE);
if (size < 0) {
if (unlikely(ecryptfs_verbosity > 0))
@@ -1391,6 +1393,7 @@ int ecryptfs_read_and_validate_xattr_region(struct dentry *dentry,
int rc;
rc = ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry),
ecryptfs_inode_to_lower(inode),
ECRYPTFS_XATTR_NAME, file_size,
ECRYPTFS_SIZE_AND_MARKER_BYTES);
if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES)

4
fs/ecryptfs/ecryptfs_kernel.h
View File

@@ -607,8 +607,8 @@ ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat,
unsigned char *src, struct dentry *ecryptfs_dentry);
int ecryptfs_truncate(struct dentry *dentry, loff_t new_length);
ssize_t
ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
void *value, size_t size);
ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,
const char *name, void *value, size_t size);
int
ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags);

23
fs/ecryptfs/inode.c
View File

@@ -1033,29 +1033,30 @@ out:
}
ssize_t
ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name,
void *value, size_t size)
ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,
const char *name, void *value, size_t size)
{
int rc = 0;
if (!d_inode(lower_dentry)->i_op->getxattr) {
if (!lower_inode->i_op->getxattr) {
rc = -EOPNOTSUPP;
goto out;
}
inode_lock(d_inode(lower_dentry));
rc = d_inode(lower_dentry)->i_op->getxattr(lower_dentry, name, value,
size);
inode_unlock(d_inode(lower_dentry));
inode_lock(lower_inode);
rc = lower_inode->i_op->getxattr(lower_dentry, lower_inode,
name, value, size);
inode_unlock(lower_inode);
out:
return rc;
}
static ssize_t
ecryptfs_getxattr(struct dentry *dentry, const char *name, void *value,
size_t size)
ecryptfs_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size)
{
return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry), name,
value, size);
return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry),
ecryptfs_inode_to_lower(inode),
name, value, size);
}
static ssize_t

3
fs/ecryptfs/mmap.c
View File

@@ -436,7 +436,8 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode)
goto out;
}
inode_lock(lower_inode);
size = lower_inode->i_op->getxattr(lower_dentry, ECRYPTFS_XATTR_NAME,
size = lower_inode->i_op->getxattr(lower_dentry, lower_inode,
ECRYPTFS_XATTR_NAME,
xattr_virt, PAGE_CACHE_SIZE);
if (size < 0)
size = 8;

5
fs/fuse/dir.c
View File

@@ -1759,10 +1759,9 @@ static int fuse_setxattr(struct dentry *entry, const char *name,
return err;
}
static ssize_t fuse_getxattr(struct dentry *entry, const char *name,
void *value, size_t size)
static ssize_t fuse_getxattr(struct dentry *entry, struct inode *inode,
const char *name, void *value, size_t size)
{
struct inode *inode = d_inode(entry);
struct fuse_conn *fc = get_fuse_conn(inode);
FUSE_ARGS(args);
struct fuse_getxattr_in inarg;

9
fs/gfs2/inode.c
View File

@@ -1968,22 +1968,21 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name,
return ret;
}
static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name,
void *data, size_t size)
static ssize_t gfs2_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *data, size_t size)
{
struct inode *inode = d_inode(dentry);
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int ret;
/* For selinux during lookup */
if (gfs2_glock_is_locked_by_me(ip->i_gl))
return generic_getxattr(dentry, name, data, size);
return generic_getxattr(dentry, inode, name, data, size);
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
ret = gfs2_glock_nq(&gh);
if (ret == 0) {
ret = generic_getxattr(dentry, name, data, size);
ret = generic_getxattr(dentry, inode, name, data, size);
gfs2_glock_dq(&gh);
}
gfs2_holder_uninit(&gh);

5
fs/hfs/attr.c
View File

@@ -56,10 +56,9 @@ out:
return res;
}
ssize_t hfs_getxattr(struct dentry *dentry, const char *name,
void *value, size_t size)
ssize_t hfs_getxattr(struct dentry *unused, struct inode *inode,
const char *name, void *value, size_t size)
{
struct inode *inode = d_inode(dentry);
struct hfs_find_data fd;
hfs_cat_rec rec;
struct hfs_cat_file *file;

4
fs/hfs/hfs_fs.h
View File

@@ -213,8 +213,8 @@ extern void hfs_delete_inode(struct inode *);
/* attr.c */
extern int hfs_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
extern ssize_t hfs_getxattr(struct dentry *dentry, const char *name,
void *value, size_t size);
extern ssize_t hfs_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size);
extern ssize_t hfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
/* mdb.c */

2
fs/jfs/jfs_xattr.h
View File

@@ -57,7 +57,7 @@ extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *,
extern int jfs_setxattr(struct dentry *, const char *, const void *, size_t,
int);
extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t);
extern ssize_t jfs_getxattr(struct dentry *, const char *, void *, size_t);
extern ssize_t jfs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t);
extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);
extern int jfs_removexattr(struct dentry *, const char *);

8
fs/jfs/xattr.c
View File

@@ -933,8 +933,8 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
return size;
}
ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data,
size_t buf_size)
ssize_t jfs_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *data, size_t buf_size)
{
int err;
@@ -944,7 +944,7 @@ ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data,
* for it via sb->s_xattr.
*/
if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
return generic_getxattr(dentry, name, data, buf_size);
return generic_getxattr(dentry, inode, name, data, buf_size);
if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) {
/*
@@ -959,7 +959,7 @@ ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data,
return -EOPNOTSUPP;
}
err = __jfs_getxattr(d_inode(dentry), name, data, buf_size);
err = __jfs_getxattr(inode, name, data, buf_size);
return err;
}

6
fs/kernfs/inode.c
View File

@@ -208,10 +208,10 @@ int kernfs_iop_removexattr(struct dentry *dentry, const char *name)
return simple_xattr_set(&attrs->xattrs, name, NULL, 0, XATTR_REPLACE);
}
ssize_t kernfs_iop_getxattr(struct dentry *dentry, const char *name, void *buf,
size_t size)
ssize_t kernfs_iop_getxattr(struct dentry *unused, struct inode *inode,
const char *name, void *buf, size_t size)
{
struct kernfs_node *kn = dentry->d_fsdata;
struct kernfs_node *kn = inode->i_private;
struct kernfs_iattrs *attrs;
attrs = kernfs_iattrs(kn);

4
fs/kernfs/kernfs-internal.h
View File

@@ -84,8 +84,8 @@ int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry,
int kernfs_iop_setxattr(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags);
int kernfs_iop_removexattr(struct dentry *dentry, const char *name);
ssize_t kernfs_iop_getxattr(struct dentry *dentry, const char *name, void *buf,
size_t size);
ssize_t kernfs_iop_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *buf, size_t size);
ssize_t kernfs_iop_listxattr(struct dentry *dentry, char *buf, size_t size);
/*

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