[PATCH 3.18.y 2/5] ->getxattr(): pass dentry and inode as separate arguments

From: Seung-Woo Kim
Date: Thu Aug 09 2018 - 05:54:03 EST

From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

commit ce23e640133484eebc20ca7b7668388213e11327 upstream.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

[sw0312.kim: backport to 3.18]
Signed-off-by: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
---
Documentation/filesystems/porting | 6 +++++
.../staging/lustre/lustre/llite/llite_internal.h | 4 +-
drivers/staging/lustre/lustre/llite/xattr.c | 6 +---
fs/bad_inode.c | 4 +-
fs/btrfs/xattr.c | 8 +++---
fs/btrfs/xattr.h | 4 +-
fs/ceph/super.h | 3 +-
fs/ceph/xattr.c | 8 +++---
fs/cifs/cifsfs.h | 2 +-
fs/cifs/xattr.c | 10 ++++----
fs/ecryptfs/crypto.c | 5 +++-
fs/ecryptfs/ecryptfs_kernel.h | 4 +-
fs/ecryptfs/inode.c | 23 ++++++++++---------
fs/ecryptfs/mmap.c | 3 +-
fs/fuse/dir.c | 5 +--
fs/gfs2/inode.c | 9 +++----
fs/hfs/attr.c | 5 +--
fs/hfs/hfs_fs.h | 4 +-
fs/jfs/jfs_xattr.h | 2 +-
fs/jfs/xattr.c | 8 +++---
fs/kernfs/inode.c | 6 ++--
fs/kernfs/kernfs-internal.h | 4 +-
fs/overlayfs/inode.c | 4 +-
fs/overlayfs/overlayfs.h | 4 +-
fs/overlayfs/super.c | 2 +-
fs/reiserfs/xattr.c | 8 +++---
fs/reiserfs/xattr.h | 4 +-
fs/ubifs/ubifs.h | 4 +-
fs/ubifs/xattr.c | 6 ++--
fs/xattr.c | 13 ++++++-----
include/linux/fs.h | 3 +-
include/linux/xattr.h | 2 +-
mm/shmem.c | 8 +++---
net/socket.c | 2 +-
security/commoncap.c | 6 ++--
security/integrity/evm/evm_main.c | 2 +-
security/selinux/hooks.c | 9 ++++---
security/smack/smack_lsm.c | 4 +-
38 files changed, 112 insertions(+), 102 deletions(-)

diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 0f3a139..daf9acd 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -463,3 +463,9 @@ in your dentry operations instead.
of the in-tree instances did). inode_hash_lock is still held,
of course, so they are still serialized wrt removal from inode hash,
as well as wrt set() callback of iget5_locked().
+--
+[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.
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 36aa0fd..442fe5b 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -1070,8 +1070,8 @@ 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);

diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c
index 252a619..fc4b95d3 100644
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -455,11 +455,9 @@ 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 = dentry->d_inode;
-
LASSERT(inode);
LASSERT(name);

diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index afd2b44..336c284 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -253,8 +253,8 @@ 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;
}
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index fbb0533..6fa0196 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -393,8 +393,8 @@ static int btrfs_is_valid_xattr(const char *name)
return 0;
}

-ssize_t btrfs_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size)
+ssize_t btrfs_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size)
{
int ret;

@@ -404,12 +404,12 @@ ssize_t btrfs_getxattr(struct dentry *dentry, const char *name,
* for it via sb->s_xattr.
*/
if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
- return generic_getxattr(dentry, name, buffer, size);
+ return generic_getxattr(dentry, inode, name, buffer, size);

ret = btrfs_is_valid_xattr(name);
if (ret)
return ret;
- return __btrfs_getxattr(dentry->d_inode, name, buffer, size);
+ return __btrfs_getxattr(inode, name, buffer, size);
}

int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value,
diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h
index 5049608..8ee4329 100644
--- a/fs/btrfs/xattr.h
+++ b/fs/btrfs/xattr.h
@@ -28,8 +28,8 @@ extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
extern int __btrfs_setxattr(struct btrfs_trans_handle *trans,
struct inode *inode, const char *name,
const void *value, size_t size, int flags);
-extern ssize_t btrfs_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size);
+extern ssize_t btrfs_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size);
extern int btrfs_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
extern int btrfs_removexattr(struct dentry *dentry, const char *name);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index b82f507..82dd063 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -727,7 +727,8 @@ 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);
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index f827d55..59640c0 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -773,13 +773,13 @@ 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(dentry->d_inode, name, value, size);
+ return __ceph_getxattr(inode, name, value, size);
}

ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 15da9e3..b0eac15 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -124,7 +124,7 @@ 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);

diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index 72a4d10..d2c738e 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -232,8 +232,8 @@ 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
@@ -246,9 +246,9 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name,

if (direntry == NULL)
return -EIO;
- if (direntry->d_inode == NULL)
+ if (inode == NULL)
return -EIO;
- sb = direntry->d_inode->i_sb;
+ sb = inode->i_sb;
if (sb == NULL)
return -EIO;

@@ -324,7 +324,7 @@ 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,
- direntry->d_inode, 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",
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 31b148f..bc82bf3 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1377,7 +1377,9 @@ 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))
@@ -1399,6 +1401,7 @@ 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)
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 4682bef..0030865 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -618,8 +618,8 @@ 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);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 885c6a9..4fb21a7 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1036,29 +1036,30 @@ 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 (!lower_dentry->d_inode->i_op->getxattr) {
+ if (!lower_inode->i_op->getxattr) {
rc = -EOPNOTSUPP;
goto out;
}
- mutex_lock(&lower_dentry->d_inode->i_mutex);
- rc = lower_dentry->d_inode->i_op->getxattr(lower_dentry, name, value,
- size);
- mutex_unlock(&lower_dentry->d_inode->i_mutex);
+ mutex_lock(&lower_inode->i_mutex);
+ rc = lower_inode->i_op->getxattr(lower_dentry, lower_inode,
+ name, value, size);
+ mutex_unlock(&lower_inode->i_mutex);
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
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 564a1fa..4ee2cac 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -437,7 +437,8 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode)
goto out;
}
mutex_lock(&lower_inode->i_mutex);
- 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;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 86ee53f..bef1ee3 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1887,10 +1887,9 @@ 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 = entry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_req *req;
struct fuse_getxattr_in inarg;
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index c4ed823..ee95780 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1871,22 +1871,21 @@ 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 = dentry->d_inode;
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);
diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c
index e057ec5..ce9719c 100644
--- a/fs/hfs/attr.c
+++ b/fs/hfs/attr.c
@@ -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 = dentry->d_inode;
struct hfs_find_data fd;
hfs_cat_rec rec;
struct hfs_cat_file *file;
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 95d2552..f234e2a 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -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 */
diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h
index e8d717d..e69e14f 100644
--- a/fs/jfs/jfs_xattr.h
+++ b/fs/jfs/jfs_xattr.h
@@ -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 *);

diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 46325d5..7b9a8f9 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -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(dentry->d_inode, name, data, buf_size);
+ err = __jfs_getxattr(inode, name, data, buf_size);

return err;
}
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index 9852176..332ccaf 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -220,10 +220,10 @@ int kernfs_iop_removexattr(struct dentry *dentry, const char *name)
return simple_xattr_remove(&attrs->xattrs, name);
}

-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);
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h
index dc84a3e..35b9ee1 100644
--- a/fs/kernfs/kernfs-internal.h
+++ b/fs/kernfs/kernfs-internal.h
@@ -85,8 +85,8 @@ 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);
void kernfs_inode_init(void);

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index df5c285..04b5520 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -246,8 +246,8 @@ static bool ovl_need_xattr_filter(struct dentry *dentry,
return type == OVL_PATH_UPPER && S_ISDIR(dentry->d_inode->i_mode);
}

-ssize_t ovl_getxattr(struct dentry *dentry, const char *name,
- void *value, size_t size)
+ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *value, size_t size)
{
struct path realpath;
enum ovl_path_type type = ovl_path_real(dentry, &realpath);
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index f13557f..66b56ea 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -161,8 +161,8 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr);
int ovl_permission(struct inode *inode, int mask);
int ovl_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
-ssize_t ovl_getxattr(struct dentry *dentry, const char *name,
- void *value, size_t size);
+ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *value, size_t size);
ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size);
int ovl_removexattr(struct dentry *dentry, const char *name);
struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags);
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index b5bddae..7d00d6c 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -249,7 +249,7 @@ static bool ovl_is_opaquedir(struct dentry *dentry)
if (!S_ISDIR(inode->i_mode) || !inode->i_op->getxattr)
return false;

- res = inode->i_op->getxattr(dentry, ovl_opaque_xattr, &val, 1);
+ res = inode->i_op->getxattr(dentry, inode, ovl_opaque_xattr, &val, 1);
if (res == 1 && val == 'y')
return true;

diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 9998770..40d4fcc 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -767,8 +767,8 @@ find_xattr_handler_prefix(const struct xattr_handler **handlers,
* Inode operation getxattr()
*/
ssize_t
-reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
- size_t size)
+reiserfs_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size)
{
const struct xattr_handler *handler;

@@ -777,8 +777,8 @@ reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer,
if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
return -EOPNOTSUPP;

- return handler->get(dentry, dentry->d_inode, name, buffer, size,
- handler->flags);
+ return handler->get(dentry, inode,
+ name, buffer, size, handler->flags);
}

/*
diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h
index f620e96..033bac1 100644
--- a/fs/reiserfs/xattr.h
+++ b/fs/reiserfs/xattr.h
@@ -18,8 +18,8 @@ int reiserfs_permission(struct inode *inode, int mask);

#ifdef CONFIG_REISERFS_FS_XATTR
#define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
-ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size);
+ssize_t reiserfs_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size);
int reiserfs_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index c4fe900..c35436f 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1750,8 +1750,8 @@ int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
/* xattr.c */
int ubifs_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
-ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
- size_t size);
+ssize_t ubifs_getxattr(struct dentry *dentry, struct inode *host,
+ const char *name, void *buf, size_t size);
ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
int ubifs_removexattr(struct dentry *dentry, const char *name);

diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index ce6c0d4..698194f 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -357,10 +357,10 @@ out_free:
return err;
}

-ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
- size_t size)
+ssize_t ubifs_getxattr(struct dentry *dentry, struct inode *host,
+ const char *name, void *buf, size_t size)
{
- struct inode *inode, *host = dentry->d_inode;
+ struct inode *inode;
struct ubifs_info *c = host->i_sb->s_fs_info;
struct qstr nm = QSTR_INIT(name, strlen(name));
struct ubifs_inode *ui;
diff --git a/fs/xattr.c b/fs/xattr.c
index 70a5962..b04fc6b 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -192,7 +192,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
if (!inode->i_op->getxattr)
return -EOPNOTSUPP;

- error = inode->i_op->getxattr(dentry, name, NULL, 0);
+ error = inode->i_op->getxattr(dentry, inode, name, NULL, 0);
if (error < 0)
return error;

@@ -203,7 +203,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
memset(value, 0, error + 1);
}

- error = inode->i_op->getxattr(dentry, name, value, error);
+ error = inode->i_op->getxattr(dentry, inode, name, value, error);
*xattr_value = value;
return error;
}
@@ -255,7 +255,7 @@ vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
}
nolsm:
if (inode->i_op->getxattr)
- error = inode->i_op->getxattr(dentry, name, value, size);
+ error = inode->i_op->getxattr(dentry, inode, name, value, size);
else
error = -EOPNOTSUPP;

@@ -717,15 +717,16 @@ xattr_resolve_name(const struct xattr_handler **handlers, const char **name)
* Find the handler for the prefix and dispatch its get() operation.
*/
ssize_t
-generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size)
+generic_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size)
{
const struct xattr_handler *handler;

handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
if (!handler)
return -EOPNOTSUPP;
- return handler->get(dentry, dentry->d_inode, name, buffer, size,
- handler->flags);
+ return handler->get(dentry, inode,
+ name, buffer, size, handler->flags);
}

/*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2a41353..7586207 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1538,7 +1538,8 @@ struct inode_operations {
int (*setattr) (struct dentry *, struct iattr *);
int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
int (*setxattr) (struct dentry *, const char *,const void *,size_t,int);
- ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
+ ssize_t (*getxattr) (struct dentry *, struct inode *,
+ const char *, void *, size_t);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index 1088878..ad4c869 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -43,7 +43,7 @@ int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, i
int vfs_setxattr(struct dentry *, const char *, const void *, size_t, int);
int vfs_removexattr(struct dentry *, const char *);

-ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size);
+ssize_t generic_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size);
ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);
int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags);
int generic_removexattr(struct dentry *dentry, const char *name);
diff --git a/mm/shmem.c b/mm/shmem.c
index fac22b5..8be47d4 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2576,10 +2576,10 @@ static int shmem_xattr_validate(const char *name)
return -EOPNOTSUPP;
}

-static ssize_t shmem_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size)
+static ssize_t shmem_getxattr(struct dentry *dentry, struct inode *inode,
+ const char *name, void *buffer, size_t size)
{
- struct shmem_inode_info *info = SHMEM_I(dentry->d_inode);
+ struct shmem_inode_info *info = SHMEM_I(inode);
int err;

/*
@@ -2588,7 +2588,7 @@ static ssize_t shmem_getxattr(struct dentry *dentry, const char *name,
* for it via sb->s_xattr.
*/
if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
- return generic_getxattr(dentry, name, buffer, size);
+ return generic_getxattr(dentry, inode, name, buffer, size);

err = shmem_xattr_validate(name);
if (err)
diff --git a/net/socket.c b/net/socket.c
index e723717..a70e86c 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -470,7 +470,7 @@ static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
#define XATTR_SOCKPROTONAME_SUFFIX "sockprotoname"
#define XATTR_NAME_SOCKPROTONAME (XATTR_SYSTEM_PREFIX XATTR_SOCKPROTONAME_SUFFIX)
#define XATTR_NAME_SOCKPROTONAME_LEN (sizeof(XATTR_NAME_SOCKPROTONAME)-1)
-static ssize_t sockfs_getxattr(struct dentry *dentry,
+static ssize_t sockfs_getxattr(struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size)
{
const char *proto_name;
diff --git a/security/commoncap.c b/security/commoncap.c
index 6849e6c..bdbe1e1 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -308,7 +308,7 @@ int cap_inode_need_killpriv(struct dentry *dentry)
if (!inode->i_op->getxattr)
return 0;

- error = inode->i_op->getxattr(dentry, XATTR_NAME_CAPS, NULL, 0);
+ error = inode->i_op->getxattr(dentry, inode, XATTR_NAME_CAPS, NULL, 0);
if (error <= 0)
return 0;
return 1;
@@ -391,8 +391,8 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
if (!inode || !inode->i_op->getxattr)
return -ENODATA;

- size = inode->i_op->getxattr((struct dentry *)dentry, XATTR_NAME_CAPS, &caps,
- XATTR_CAPS_SZ);
+ size = inode->i_op->getxattr((struct dentry *)dentry, inode,
+ XATTR_NAME_CAPS, &caps, XATTR_CAPS_SZ);
if (size == -ENODATA || size == -EOPNOTSUPP)
/* no data, that's ok */
return -ENODATA;
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index e1998df..106d1ac 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -83,7 +83,7 @@ static int evm_find_protected_xattrs(struct dentry *dentry)
return -EOPNOTSUPP;

for (xattr = evm_config_xattrnames; *xattr != NULL; xattr++) {
- error = inode->i_op->getxattr(dentry, *xattr, NULL, 0);
+ error = inode->i_op->getxattr(dentry, inode, *xattr, NULL, 0);
if (error < 0) {
if (error == -ENODATA)
continue;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 98370d0..8718f05 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -442,7 +442,8 @@ static int sb_finish_set_opts(struct super_block *sb)
rc = -EOPNOTSUPP;
goto out;
}
- rc = root_inode->i_op->getxattr(root, XATTR_NAME_SELINUX, NULL, 0);
+ rc = root_inode->i_op->getxattr(root, root_inode,
+ XATTR_NAME_SELINUX, NULL, 0);
if (rc < 0 && rc != -ENODATA) {
if (rc == -EOPNOTSUPP)
printk(KERN_WARNING "SELinux: (dev %s, type "
@@ -1344,13 +1345,13 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
goto out_unlock;
}
context[len] = '\0';
- rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX,
+ rc = inode->i_op->getxattr(dentry, inode, XATTR_NAME_SELINUX,
context, len);
if (rc == -ERANGE) {
kfree(context);

/* Need a larger buffer. Query for the right size. */
- rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX,
+ rc = inode->i_op->getxattr(dentry, inode, XATTR_NAME_SELINUX,
NULL, 0);
if (rc < 0) {
dput(dentry);
@@ -1364,7 +1365,7 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
goto out_unlock;
}
context[len] = '\0';
- rc = inode->i_op->getxattr(dentry,
+ rc = inode->i_op->getxattr(dentry, inode,
XATTR_NAME_SELINUX,
context, len);
}
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index a72b516..764e521 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -219,7 +219,7 @@ static struct smack_known *smk_fetch(const char *name, struct inode *ip,
if (buffer == NULL)
return NULL;

- rc = ip->i_op->getxattr(dp, name, buffer, SMK_LONGLABEL);
+ rc = ip->i_op->getxattr(dp, ip, name, buffer, SMK_LONGLABEL);
if (rc > 0)
skp = smk_import_entry(buffer, rc);

@@ -3144,7 +3144,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
TRANS_TRUE, TRANS_TRUE_SIZE,
0);
} else {
- rc = inode->i_op->getxattr(dp,
+ rc = inode->i_op->getxattr(dp, inode,
XATTR_NAME_SMACKTRANSMUTE, trattr,
TRANS_TRUE_SIZE);
if (rc >= 0 && strncmp(trattr, TRANS_TRUE,
--
1.7.4.1