From: Al Viro <v...@zeniv.linux.org.uk>

smack ->d_instantiate() uses ->setxattr(), so to be able to call it before
we'd hashed the new dentry and attached it to inode, we need ->setxattr()
instances getting the inode as an explicit argument rather than obtaining
it from dentry.

Similar change for ->getxattr() had been done in commit ce23e64.  Unlike
->getxattr() (which is used by both selinux and smack instances of
->d_instantiate()) ->setxattr() is used only by smack one and unfortunately
it got missed back then.

Reported-by: Seung-Woo Kim <sw0312....@samsung.com>
Tested-by: Casey Schaufler <ca...@schaufler-ca.com>
Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>

[sw0312.kim: backport to 3.18]
Signed-off-by: Seung-Woo Kim <sw0312....@samsung.com>
---
It is not clear, a26feccaba29 ("ceph: Get rid of d_find_alias in ceph_set_acl")
is required backport for ceph or not.
---
 Documentation/filesystems/porting                  |    7 +++++++
 .../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                                   |   12 +++++++-----
 fs/btrfs/xattr.h                                   |    5 +++--
 fs/ceph/super.h                                    |    4 ++--
 fs/ceph/xattr.c                                    |    7 ++++---
 fs/cifs/cifsfs.h                                   |    4 ++--
 fs/cifs/xattr.c                                    |   13 +++++++------
 fs/ecryptfs/crypto.c                               |    9 +++++----
 fs/ecryptfs/ecryptfs_kernel.h                      |    4 ++--
 fs/ecryptfs/inode.c                                |    7 ++++---
 fs/ecryptfs/mmap.c                                 |    3 ++-
 fs/fuse/dir.c                                      |    6 +++---
 fs/gfs2/inode.c                                    |    9 +++++----
 fs/hfs/attr.c                                      |    6 +++---
 fs/hfs/hfs_fs.h                                    |    2 +-
 fs/jfs/jfs_xattr.h                                 |    4 ++--
 fs/jfs/xattr.c                                     |   10 +++++-----
 fs/kernfs/inode.c                                  |   11 ++++++-----
 fs/kernfs/kernfs-internal.h                        |    3 ++-
 fs/overlayfs/inode.c                               |    5 +++--
 fs/overlayfs/overlayfs.h                           |    5 +++--
 fs/reiserfs/xattr.c                                |    8 ++++----
 fs/reiserfs/xattr.h                                |    5 +++--
 fs/ubifs/ubifs.h                                   |    2 +-
 fs/ubifs/xattr.c                                   |    4 ++--
 fs/xattr.c                                         |    9 +++++----
 include/linux/fs.h                                 |    3 ++-
 include/linux/xattr.h                              |    3 ++-
 mm/shmem.c                                         |   10 ++++++----
 security/smack/smack_lsm.c                         |    2 +-
 33 files changed, 110 insertions(+), 86 deletions(-)

diff --git a/Documentation/filesystems/porting 
b/Documentation/filesystems/porting
index daf9acd..51bdd4a 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -469,3 +469,10 @@ in your dentry operations instead.
        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.
+--
+[mandatory]
+       ->setxattr() and xattr_handler.set() 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 and !@#!@##!@$!$#!@#$!@$!@$ 
smack
+       ->d_instantiate() uses not just ->getxattr() but ->setxattr() as well.
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h 
b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 442fe5b..d7ac9bc 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -1068,8 +1068,8 @@ 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);
+int ll_setxattr(struct dentry *dentry, struct inode *inode,
+               const char *name, const void *value, size_t size, int flags);
 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);
diff --git a/drivers/staging/lustre/lustre/llite/xattr.c 
b/drivers/staging/lustre/lustre/llite/xattr.c
index fc4b95d3..3edbbd2 100644
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -212,11 +212,9 @@ int ll_setxattr_common(struct inode *inode, const char 
*name,
        return 0;
 }
 
-int ll_setxattr(struct dentry *dentry, const char *name,
-               const void *value, size_t size, int flags)
+int ll_setxattr(struct dentry *dentry, struct inode *inode,
+               const char *name, const void *value, size_t size, int flags)
 {
-       struct inode *inode = dentry->d_inode;
-
        LASSERT(inode);
        LASSERT(name);
 
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 336c284..5c29455 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -247,8 +247,8 @@ static int bad_inode_setattr(struct dentry *direntry, 
struct iattr *attrs)
        return -EIO;
 }
 
-static int bad_inode_setxattr(struct dentry *dentry, const char *name,
-               const void *value, size_t size, int flags)
+static int bad_inode_setxattr(struct dentry *dentry, struct inode *inode,
+               const char *name, const void *value, size_t size, int flags)
 {
        return -EIO;
 }
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 6fa0196..22291af 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -412,10 +412,11 @@ ssize_t btrfs_getxattr(struct dentry *dentry, struct 
inode *inode,
        return __btrfs_getxattr(inode, name, buffer, size);
 }
 
-int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value,
+int btrfs_setxattr(struct dentry *dentry, struct inode *inode,
+                  const char *name, const void *value,
                   size_t size, int flags)
 {
-       struct btrfs_root *root = BTRFS_I(dentry->d_inode)->root;
+       struct btrfs_root *root = BTRFS_I(inode)->root;
        int ret;
 
        /*
@@ -431,20 +432,21 @@ int btrfs_setxattr(struct dentry *dentry, const char 
*name, const void *value,
         * for it via sb->s_xattr.
         */
        if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
-               return generic_setxattr(dentry, name, value, size, flags);
+               return generic_setxattr(dentry, inode, name, value,
+                                       size, flags);
 
        ret = btrfs_is_valid_xattr(name);
        if (ret)
                return ret;
 
        if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN))
-               return btrfs_set_prop(dentry->d_inode, name,
+               return btrfs_set_prop(inode, name,
                                      value, size, flags);
 
        if (size == 0)
                value = "";  /* empty EA, do not remove */
 
-       return __btrfs_setxattr(NULL, dentry->d_inode, name, value, size,
+       return __btrfs_setxattr(NULL, inode, name, value, size,
                                flags);
 }
 
diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h
index 8ee4329..bbd23f3 100644
--- a/fs/btrfs/xattr.h
+++ b/fs/btrfs/xattr.h
@@ -30,8 +30,9 @@ extern int __btrfs_setxattr(struct btrfs_trans_handle *trans,
                            const void *value, size_t size, int flags);
 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_setxattr(struct dentry *dentry, struct inode *inode,
+                         const char *name, const void *value,
+                         size_t size, int flags);
 extern int btrfs_removexattr(struct dentry *dentry, const char *name);
 
 extern int btrfs_xattr_security_init(struct btrfs_trans_handle *trans,
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 82dd063..2783da8 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -722,8 +722,8 @@ extern int ceph_getattr(struct vfsmount *mnt, struct dentry 
*dentry,
                        struct kstat *stat);
 
 /* xattr.c */
-extern int ceph_setxattr(struct dentry *, const char *, const void *,
-                        size_t, int);
+extern int ceph_setxattr(struct dentry *, struct inode *, const char *,
+                        const void *, size_t, int);
 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 *);
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 59640c0..663cecc 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -995,14 +995,15 @@ out:
        return err;
 }
 
-int ceph_setxattr(struct dentry *dentry, const char *name,
+int ceph_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
                  const void *value, size_t size, int flags)
 {
-       if (ceph_snap(dentry->d_inode) != CEPH_NOSNAP)
+       if (ceph_snap(inode) != CEPH_NOSNAP)
                return -EROFS;
 
        if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
-               return generic_setxattr(dentry, name, value, size, flags);
+               return generic_setxattr(dentry, inode, name, value, size,
+                                       flags);
 
        return __ceph_setxattr(dentry, name, value, size, flags);
 }
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index b0eac15..bda690e 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -122,8 +122,8 @@ extern int cifs_readlink(struct dentry *direntry, char 
__user *buffer,
 extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
                        const char *symname);
 extern int     cifs_removexattr(struct dentry *, const char *);
-extern int     cifs_setxattr(struct dentry *, const char *, const void *,
-                       size_t, int);
+extern int     cifs_setxattr(struct dentry *, struct inode *, const char *,
+                       const void *, size_t, int);
 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 d2c738e..2d7e6de 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -97,8 +97,9 @@ remove_ea_exit:
        return rc;
 }
 
-int cifs_setxattr(struct dentry *direntry, const char *ea_name,
-                 const void *ea_value, size_t value_size, int flags)
+int cifs_setxattr(struct dentry *direntry, struct inode *inode,
+                 const char *ea_name, const void *ea_value, size_t value_size,
+                 int flags)
 {
        int rc = -EOPNOTSUPP;
 #ifdef CONFIG_CIFS_XATTR
@@ -111,9 +112,9 @@ int cifs_setxattr(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;
 
@@ -177,12 +178,12 @@ int cifs_setxattr(struct dentry *direntry, const char 
*ea_name,
                        memcpy(pacl, ea_value, value_size);
                        if (pTcon->ses->server->ops->set_acl)
                                rc = pTcon->ses->server->ops->set_acl(pacl,
-                                               value_size, direntry->d_inode,
+                                               value_size, inode,
                                                full_path, CIFS_ACL_DACL);
                        else
                                rc = -EOPNOTSUPP;
                        if (rc == 0) /* force revalidate of the inode */
-                               CIFS_I(direntry->d_inode)->time = 0;
+                               CIFS_I(inode)->time = 0;
                        kfree(pacl);
                }
 #else
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index bc82bf3..1523f21 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1149,12 +1149,13 @@ ecryptfs_write_metadata_to_contents(struct inode 
*ecryptfs_inode,
 
 static int
 ecryptfs_write_metadata_to_xattr(struct dentry *ecryptfs_dentry,
+                                struct inode *ecryptfs_inode,
                                 char *page_virt, size_t size)
 {
        int rc;
 
-       rc = ecryptfs_setxattr(ecryptfs_dentry, ECRYPTFS_XATTR_NAME, page_virt,
-                              size, 0);
+       rc = ecryptfs_setxattr(ecryptfs_dentry, ecryptfs_inode,
+                              ECRYPTFS_XATTR_NAME, page_virt, size, 0);
        return rc;
 }
 
@@ -1223,8 +1224,8 @@ int ecryptfs_write_metadata(struct dentry 
*ecryptfs_dentry,
                goto out_free;
        }
        if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR)
-               rc = ecryptfs_write_metadata_to_xattr(ecryptfs_dentry, virt,
-                                                     size);
+               rc = ecryptfs_write_metadata_to_xattr(ecryptfs_dentry, 
ecryptfs_inode,
+                                                     virt, size);
        else
                rc = ecryptfs_write_metadata_to_contents(ecryptfs_inode, virt,
                                                         virt_len);
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 0030865..567fbd7 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -621,8 +621,8 @@ ssize_t
 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);
+ecryptfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
+                 const void *value, size_t size, int flags);
 int ecryptfs_read_xattr_region(char *page_virt, struct inode *ecryptfs_inode);
 #ifdef CONFIG_ECRYPT_FS_MESSAGING
 int ecryptfs_process_response(struct ecryptfs_daemon *daemon,
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 4fb21a7..80006b1 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1016,7 +1016,8 @@ static int ecryptfs_getattr(struct vfsmount *mnt, struct 
dentry *dentry,
 }
 
 int
-ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
+ecryptfs_setxattr(struct dentry *dentry, struct inode *inode,
+                 const char *name, const void *value,
                  size_t size, int flags)
 {
        int rc = 0;
@@ -1029,8 +1030,8 @@ ecryptfs_setxattr(struct dentry *dentry, const char 
*name, const void *value,
        }
 
        rc = vfs_setxattr(lower_dentry, name, value, size, flags);
-       if (!rc && dentry->d_inode)
-               fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode);
+       if (!rc && inode)
+               fsstack_copy_attr_all(inode, lower_dentry->d_inode);
 out:
        return rc;
 }
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 4ee2cac..5099360 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -443,7 +443,8 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode 
*ecryptfs_inode)
        if (size < 0)
                size = 8;
        put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt);
-       rc = lower_inode->i_op->setxattr(lower_dentry, ECRYPTFS_XATTR_NAME,
+       rc = lower_inode->i_op->setxattr(lower_dentry, lower_inode,
+                                        ECRYPTFS_XATTR_NAME,
                                         xattr_virt, size, 0);
        mutex_unlock(&lower_inode->i_mutex);
        if (rc)
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index bef1ee3..1dbc7c1 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1845,10 +1845,10 @@ static int fuse_getattr(struct vfsmount *mnt, struct 
dentry *entry,
        return fuse_update_attributes(inode, stat, NULL, NULL);
 }
 
-static int fuse_setxattr(struct dentry *entry, const char *name,
-                        const void *value, size_t size, int flags)
+static int fuse_setxattr(struct dentry *unused, struct inode *inode,
+                        const char *name, const void *value,
+                        size_t size, int flags)
 {
-       struct inode *inode = entry->d_inode;
        struct fuse_conn *fc = get_fuse_conn(inode);
        struct fuse_req *req;
        struct fuse_setxattr_in inarg;
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index ee95780..eb10bd8 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1851,10 +1851,10 @@ static int gfs2_getattr(struct vfsmount *mnt, struct 
dentry *dentry,
        return 0;
 }
 
-static int gfs2_setxattr(struct dentry *dentry, const char *name,
-                        const void *data, size_t size, int flags)
+static int gfs2_setxattr(struct dentry *dentry, struct inode *inode,
+                        const char *name, const void *data, size_t size,
+                        int flags)
 {
-       struct inode *inode = dentry->d_inode;
        struct gfs2_inode *ip = GFS2_I(inode);
        struct gfs2_holder gh;
        int ret;
@@ -1864,7 +1864,8 @@ static int gfs2_setxattr(struct dentry *dentry, const 
char *name,
        if (ret == 0) {
                ret = gfs2_rs_alloc(ip);
                if (ret == 0)
-                       ret = generic_setxattr(dentry, name, data, size, flags);
+                       ret = generic_setxattr(dentry, inode, name, data,
+                                              size, flags);
                gfs2_glock_dq(&gh);
        }
        gfs2_holder_uninit(&gh);
diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c
index ce9719c..39b7123 100644
--- a/fs/hfs/attr.c
+++ b/fs/hfs/attr.c
@@ -13,10 +13,10 @@
 #include "hfs_fs.h"
 #include "btree.h"
 
-int hfs_setxattr(struct dentry *dentry, const char *name,
-                const void *value, size_t size, int flags)
+int hfs_setxattr(struct dentry *unused, struct inode *inode,
+                const char *name, const void *value,
+                size_t size, int flags)
 {
-       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 f234e2a..f052215 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -211,7 +211,7 @@ extern void hfs_evict_inode(struct inode *);
 extern void hfs_delete_inode(struct inode *);
 
 /* attr.c */
-extern int hfs_setxattr(struct dentry *dentry, const char *name,
+extern int hfs_setxattr(struct dentry *dentry, struct inode *inode, const char 
*name,
                        const void *value, size_t size, int flags);
 extern ssize_t hfs_getxattr(struct dentry *dentry, struct inode *inode,
                            const char *name, void *value, size_t size);
diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h
index e69e14f..01c47b1 100644
--- a/fs/jfs/jfs_xattr.h
+++ b/fs/jfs/jfs_xattr.h
@@ -54,8 +54,8 @@ struct jfs_ea_list {
 
 extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *,
                          size_t, int);
-extern int jfs_setxattr(struct dentry *, const char *, const void *, size_t,
-                       int);
+extern int jfs_setxattr(struct dentry *, struct inode *, 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 *, struct inode *, const char *, 
void *, size_t);
 extern ssize_t jfs_listxattr(struct dentry *, char *, size_t);
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 7b9a8f9..a942358 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -846,10 +846,9 @@ int __jfs_setxattr(tid_t tid, struct inode *inode, const 
char *name,
        return rc;
 }
 
-int jfs_setxattr(struct dentry *dentry, const char *name, const void *value,
-                size_t value_len, int flags)
+int jfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
+                const void *value, size_t value_len, int flags)
 {
-       struct inode *inode = dentry->d_inode;
        struct jfs_inode_info *ji = JFS_IP(inode);
        int rc;
        tid_t tid;
@@ -860,7 +859,8 @@ int jfs_setxattr(struct dentry *dentry, const char *name, 
const void *value,
         * for it via sb->s_xattr.
         */
        if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
-               return generic_setxattr(dentry, name, value, value_len, flags);
+               return generic_setxattr(dentry, inode, name, value, value_len,
+                                       flags);
 
        if ((rc = can_set_xattr(inode, name, value, value_len)))
                return rc;
@@ -872,7 +872,7 @@ int jfs_setxattr(struct dentry *dentry, const char *name, 
const void *value,
 
        tid = txBegin(inode->i_sb, 0);
        mutex_lock(&ji->commit_mutex);
-       rc = __jfs_setxattr(tid, dentry->d_inode, name, value, value_len,
+       rc = __jfs_setxattr(tid, inode, name, value, value_len,
                            flags);
        if (!rc)
                rc = txCommit(tid, 1, &inode, 0);
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index 332ccaf..d422c76 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -169,10 +169,11 @@ static int kernfs_node_setsecdata(struct kernfs_node *kn, 
void **secdata,
        return 0;
 }
 
-int kernfs_iop_setxattr(struct dentry *dentry, const char *name,
-                       const void *value, size_t size, int flags)
+int kernfs_iop_setxattr(struct dentry *unused, struct inode *inode,
+                       const char *name, const void *value,
+                       size_t size, int flags)
 {
-       struct kernfs_node *kn = dentry->d_fsdata;
+       struct kernfs_node *kn = inode->i_private;
        struct kernfs_iattrs *attrs;
        void *secdata;
        int error;
@@ -184,11 +185,11 @@ int kernfs_iop_setxattr(struct dentry *dentry, const char 
*name,
 
        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,
+               error = security_inode_setsecurity(inode, suffix,
                                                value, size, flags);
                if (error)
                        return error;
-               error = security_inode_getsecctx(dentry->d_inode,
+               error = security_inode_getsecctx(inode,
                                                &secdata, &secdata_len);
                if (error)
                        return error;
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h
index 35b9ee1..b7469cf 100644
--- a/fs/kernfs/kernfs-internal.h
+++ b/fs/kernfs/kernfs-internal.h
@@ -82,7 +82,8 @@ int kernfs_iop_permission(struct inode *inode, int mask);
 int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr);
 int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry,
                       struct kstat *stat);
-int kernfs_iop_setxattr(struct dentry *dentry, const char *name, const void 
*value,
+int kernfs_iop_setxattr(struct dentry *dentry, struct inode *inode,
+                       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, struct inode *inode,
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 04b5520..810969d 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -213,8 +213,9 @@ bool ovl_is_private_xattr(const char *name)
        return strncmp(name, "trusted.overlay.", 14) == 0;
 }
 
-int ovl_setxattr(struct dentry *dentry, const char *name,
-                const void *value, size_t size, int flags)
+int ovl_setxattr(struct dentry *dentry, struct inode *inode,
+                const char *name, const void *value,
+                size_t size, int flags)
 {
        int err;
        struct dentry *upperdentry;
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 66b56ea..214baf0 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -159,8 +159,9 @@ void ovl_cache_free(struct list_head *list);
 /* inode.c */
 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);
+int ovl_setxattr(struct dentry *dentry, struct inode *inode,
+                const char *name, const void *value,
+                size_t size, int flags);
 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);
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index b5d64cc..5251955 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -787,8 +787,8 @@ reiserfs_getxattr(struct dentry *dentry, struct inode 
*inode,
  * dentry->d_inode->i_mutex down
  */
 int
-reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value,
-                 size_t size, int flags)
+reiserfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
+                 const void *value, size_t size, int flags)
 {
        const struct xattr_handler *handler;
 
@@ -797,8 +797,8 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, 
const void *value,
        if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1)
                return -EOPNOTSUPP;
 
-       return handler->set(dentry, dentry->d_inode, name, value, size,
-                           flags, handler->flags);
+       return handler->set(dentry, inode, name, value, size, flags,
+                           handler->flags);
 }
 
 /*
diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h
index 033bac1..0762779 100644
--- a/fs/reiserfs/xattr.h
+++ b/fs/reiserfs/xattr.h
@@ -20,8 +20,9 @@ int reiserfs_permission(struct inode *inode, int mask);
 #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir)
 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);
+int reiserfs_setxattr(struct dentry *dentry, struct inode *inode,
+                     const char *name, const void *value, size_t size,
+                     int flags);
 ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
 int reiserfs_removexattr(struct dentry *dentry, const char *name);
 
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index c35436f..7b022a9 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1748,7 +1748,7 @@ int ubifs_getattr(struct vfsmount *mnt, struct dentry 
*dentry,
                  struct kstat *stat);
 
 /* xattr.c */
-int ubifs_setxattr(struct dentry *dentry, const char *name,
+int ubifs_setxattr(struct dentry *dentry, struct inode *inode, const char 
*name,
                   const void *value, size_t size, int flags);
 ssize_t ubifs_getxattr(struct dentry *dentry, struct inode *host,
                       const char *name, void *buf, size_t size);
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 698194f..13104e4 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -294,10 +294,10 @@ static struct inode *iget_xattr(struct ubifs_info *c, 
ino_t inum)
        return ERR_PTR(-EINVAL);
 }
 
-int ubifs_setxattr(struct dentry *dentry, const char *name,
+int ubifs_setxattr(struct dentry *dentry, struct inode *host, const char *name,
                   const void *value, size_t size, int flags)
 {
-       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_dent_node *xent;
diff --git a/fs/xattr.c b/fs/xattr.c
index 87bd926..d6351cb 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -100,7 +100,7 @@ int __vfs_setxattr_noperm(struct dentry *dentry, const char 
*name,
        if (issec)
                inode->i_flags &= ~S_NOSEC;
        if (inode->i_op->setxattr) {
-               error = inode->i_op->setxattr(dentry, name, value, size, flags);
+               error = inode->i_op->setxattr(dentry, inode, name, value, size, 
flags);
                if (!error) {
                        fsnotify_xattr(dentry);
                        security_inode_post_setxattr(dentry, name, value,
@@ -764,7 +764,8 @@ generic_listxattr(struct dentry *dentry, char *buffer, 
size_t buffer_size)
  * Find the handler for the prefix and dispatch its set() operation.
  */
 int
-generic_setxattr(struct dentry *dentry, const char *name, const void *value, 
size_t size, int flags)
+generic_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
+                const void *value, size_t size, int flags)
 {
        const struct xattr_handler *handler;
 
@@ -773,8 +774,8 @@ generic_setxattr(struct dentry *dentry, const char *name, 
const void *value, siz
        handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
        if (!handler)
                return -EOPNOTSUPP;
-       return handler->set(dentry, dentry->d_inode, name, value, size,
-                           flags, handler->flags);
+       return handler->set(dentry, inode, name, value, size, flags,
+                           handler->flags);
 }
 
 /*
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7586207..ba463aa 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1537,7 +1537,8 @@ struct inode_operations {
                        struct inode *, struct dentry *, unsigned int);
        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);
+       int (*setxattr) (struct dentry *, struct inode *,
+                        const char *, const void *, size_t, int);
        ssize_t (*getxattr) (struct dentry *, struct inode *,
                             const char *, void *, size_t);
        ssize_t (*listxattr) (struct dentry *, char *, size_t);
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index 0027b04..ac6e270 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -46,7 +46,8 @@ int vfs_removexattr(struct dentry *, const char *);
 
 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_setxattr(struct dentry *dentry, struct inode *inode,
+                    const char *name, const void *value, size_t size, int 
flags);
 int generic_removexattr(struct dentry *dentry, const char *name);
 ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name,
                           char **xattr_value, size_t size, gfp_t flags);
diff --git a/mm/shmem.c b/mm/shmem.c
index 8be47d4..f926e5e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2597,10 +2597,11 @@ static ssize_t shmem_getxattr(struct dentry *dentry, 
struct inode *inode,
        return simple_xattr_get(&info->xattrs, name, buffer, size);
 }
 
-static int shmem_setxattr(struct dentry *dentry, const char *name,
-                         const void *value, size_t size, int flags)
+static int shmem_setxattr(struct dentry *dentry, struct inode *inode,
+                         const char *name, const void *value, size_t size,
+                         int flags)
 {
-       struct shmem_inode_info *info = SHMEM_I(dentry->d_inode);
+       struct shmem_inode_info *info = SHMEM_I(inode);
        int err;
 
        /*
@@ -2609,7 +2610,8 @@ static int shmem_setxattr(struct dentry *dentry, const 
char *name,
         * for it via sb->s_xattr.
         */
        if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN))
-               return generic_setxattr(dentry, name, value, size, flags);
+               return generic_setxattr(dentry, inode, name, value, size,
+                                       flags);
 
        err = shmem_xattr_validate(name);
        if (err)
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 764e521..444a619 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3139,7 +3139,7 @@ static void smack_d_instantiate(struct dentry 
*opt_dentry, struct inode *inode)
                         */
                        if (isp->smk_flags & SMK_INODE_CHANGED) {
                                isp->smk_flags &= ~SMK_INODE_CHANGED;
-                               rc = inode->i_op->setxattr(dp,
+                               rc = inode->i_op->setxattr(dp, inode,
                                        XATTR_NAME_SMACKTRANSMUTE,
                                        TRANS_TRUE, TRANS_TRUE_SIZE,
                                        0);
-- 
1.7.4.1

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