Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
  reiserfs: Properly display mount options in /proc/mounts
  vfs: prevent remount read-only if pending removes
  vfs: count unlinked inodes
  vfs: protect remounting superblock read-only
  vfs: keep list of mounts for each superblock
  vfs: switch ->show_options() to struct dentry *
  vfs: switch ->show_path() to struct dentry *
  vfs: switch ->show_devname() to struct dentry *
  vfs: switch ->show_stats to struct dentry *
  switch security_path_chmod() to struct path *
  vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
  vfs: trim includes a bit
  switch mnt_namespace ->root to struct mount
  vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
  vfs: opencode mntget() mnt_set_mountpoint()
  vfs: spread struct mount - remaining argument of next_mnt()
  vfs: move fsnotify junk to struct mount
  vfs: move mnt_devname
  vfs: move mnt_list to struct mount
  vfs: switch pnode.h macros to struct mount *
  ...

13 files changed, 46 insertions, 60 deletions

diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 69ddb47787b2..e39df6d43779 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -165,7 +165,7 @@ static void __init aafs_remove(const char *name)
  *
  * Used aafs_remove to remove entries created with this fn.
  */
-static int __init aafs_create(const char *name, int mask,
+static int __init aafs_create(const char *name, umode_t mask,
                               const struct file_operations *fops)
 {
         struct dentry *dentry;
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 37832026e58a..2c0a0ff41399 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -262,7 +262,7 @@ static int apparmor_path_unlink(struct path *dir, struct dentry *dentry)
 }
 
 static int apparmor_path_mkdir(struct path *dir, struct dentry *dentry,
-                               int mode)
+                               umode_t mode)
 {
         return common_perm_create(OP_MKDIR, dir, dentry, AA_MAY_CREATE,
                                   S_IFDIR);
@@ -274,7 +274,7 @@ static int apparmor_path_rmdir(struct path *dir, struct dentry *dentry)
 }
 
 static int apparmor_path_mknod(struct path *dir, struct dentry *dentry,
-                               int mode, unsigned int dev)
+                               umode_t mode, unsigned int dev)
 {
         return common_perm_create(OP_MKNOD, dir, dentry, AA_MAY_CREATE, mode);
 }
@@ -344,13 +344,12 @@ static int apparmor_path_rename(struct path *old_dir, struct dentry *old_dentry,
         return error;
 }
 
-static int apparmor_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                               mode_t mode)
+static int apparmor_path_chmod(struct path *path, umode_t mode)
 {
-        if (!mediated_filesystem(dentry->d_inode))
+        if (!mediated_filesystem(path->dentry->d_inode))
                 return 0;
 
-        return common_perm_mnt_dentry(OP_CHMOD, mnt, dentry, AA_MAY_CHMOD);
+        return common_perm_mnt_dentry(OP_CHMOD, path->mnt, path->dentry, AA_MAY_CHMOD);
 }
 
 static int apparmor_path_chown(struct path *path, uid_t uid, gid_t gid)
diff --git a/security/apparmor/path.c b/security/apparmor/path.c
index b566eba4a65c..9d070a7c3ffc 100644
--- a/security/apparmor/path.c
+++ b/security/apparmor/path.c
@@ -13,7 +13,6 @@
  */
 
 #include <linux/magic.h>
-#include <linux/mnt_namespace.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
 #include <linux/nsproxy.h>
diff --git a/security/capability.c b/security/capability.c
index 2984ea4f776f..3b5883b7179f 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -125,7 +125,7 @@ static int cap_inode_init_security(struct inode *inode, struct inode *dir,
 }
 
 static int cap_inode_create(struct inode *inode, struct dentry *dentry,
-                            int mask)
+                            umode_t mask)
 {
         return 0;
 }
@@ -148,7 +148,7 @@ static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
 }
 
 static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
-                           int mask)
+                           umode_t mask)
 {
         return 0;
 }
@@ -159,7 +159,7 @@ static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
 }
 
 static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
-                           int mode, dev_t dev)
+                           umode_t mode, dev_t dev)
 {
         return 0;
 }
@@ -235,13 +235,13 @@ static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
 }
 
 #ifdef CONFIG_SECURITY_PATH
-static int cap_path_mknod(struct path *dir, struct dentry *dentry, int mode,
+static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
                           unsigned int dev)
 {
         return 0;
 }
 
-static int cap_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
+static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 {
         return 0;
 }
@@ -279,8 +279,7 @@ static int cap_path_truncate(struct path *path)
         return 0;
 }
 
-static int cap_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                          mode_t mode)
+static int cap_path_chmod(struct path *path, umode_t mode)
 {
         return 0;
 }
diff --git a/security/inode.c b/security/inode.c
index c4df2fbebe6b..90a70a67d835 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -56,7 +56,7 @@ static const struct file_operations default_file_ops = {
         .llseek =       noop_llseek,
 };
 
-static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev)
+static struct inode *get_inode(struct super_block *sb, umode_t mode, dev_t dev)
 {
         struct inode *inode = new_inode(sb);
 
@@ -85,7 +85,7 @@ static struct inode *get_inode(struct super_block *sb, int mode, dev_t dev)
 
 /* SMP-safe */
 static int mknod(struct inode *dir, struct dentry *dentry,
-                         int mode, dev_t dev)
+                         umode_t mode, dev_t dev)
 {
         struct inode *inode;
         int error = -ENOMEM;
@@ -102,7 +102,7 @@ static int mknod(struct inode *dir, struct dentry *dentry,
         return error;
 }
 
-static int mkdir(struct inode *dir, struct dentry *dentry, int mode)
+static int mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         int res;
 
@@ -113,7 +113,7 @@ static int mkdir(struct inode *dir, struct dentry *dentry, int mode)
         return res;
 }
 
-static int create(struct inode *dir, struct dentry *dentry, int mode)
+static int create(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         mode = (mode & S_IALLUGO) | S_IFREG;
         return mknod(dir, dentry, mode, 0);
@@ -145,7 +145,7 @@ static struct file_system_type fs_type = {
         .kill_sb =      kill_litter_super,
 };
 
-static int create_by_name(const char *name, mode_t mode,
+static int create_by_name(const char *name, umode_t mode,
                           struct dentry *parent,
                           struct dentry **dentry)
 {
@@ -159,12 +159,12 @@ static int create_by_name(const char *name, mode_t mode,
          * have around.
          */
         if (!parent)
-                parent = mount->mnt_sb->s_root;
+                parent = mount->mnt_root;
 
         mutex_lock(&parent->d_inode->i_mutex);
         *dentry = lookup_one_len(name, parent, strlen(name));
         if (!IS_ERR(*dentry)) {
-                if ((mode & S_IFMT) == S_IFDIR)
+                if (S_ISDIR(mode))
                         error = mkdir(parent->d_inode, *dentry, mode);
                 else
                         error = create(parent->d_inode, *dentry, mode);
@@ -205,7 +205,7 @@ static int create_by_name(const char *name, mode_t mode,
  * If securityfs is not enabled in the kernel, the value %-ENODEV is
  * returned.
  */
-struct dentry *securityfs_create_file(const char *name, mode_t mode,
+struct dentry *securityfs_create_file(const char *name, umode_t mode,
                                    struct dentry *parent, void *data,
                                    const struct file_operations *fops)
 {
diff --git a/security/security.c b/security/security.c
index e2f684aeb70c..214502c772ab 100644
--- a/security/security.c
+++ b/security/security.c
@@ -388,7 +388,7 @@ int security_old_inode_init_security(struct inode *inode, struct inode *dir,
 EXPORT_SYMBOL(security_old_inode_init_security);
 
 #ifdef CONFIG_SECURITY_PATH
-int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
+int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
                         unsigned int dev)
 {
         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
@@ -397,7 +397,7 @@ int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
 }
 EXPORT_SYMBOL(security_path_mknod);
 
-int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
+int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
 {
         if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
                 return 0;
@@ -454,12 +454,11 @@ int security_path_truncate(struct path *path)
         return security_ops->path_truncate(path);
 }
 
-int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                        mode_t mode)
+int security_path_chmod(struct path *path, umode_t mode)
 {
-        if (unlikely(IS_PRIVATE(dentry->d_inode)))
+        if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
                 return 0;
-        return security_ops->path_chmod(dentry, mnt, mode);
+        return security_ops->path_chmod(path, mode);
 }
 
 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
@@ -475,7 +474,7 @@ int security_path_chroot(struct path *path)
 }
 #endif
 
-int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
+int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         if (unlikely(IS_PRIVATE(dir)))
                 return 0;
@@ -506,7 +505,7 @@ int security_inode_symlink(struct inode *dir, struct dentry *dentry,
         return security_ops->inode_symlink(dir, dentry, old_name);
 }
 
-int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         if (unlikely(IS_PRIVATE(dir)))
                 return 0;
@@ -521,7 +520,7 @@ int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
         return security_ops->inode_rmdir(dir, dentry);
 }
 
-int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         if (unlikely(IS_PRIVATE(dir)))
                 return 0;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 86305c2f555a..7cd4c3affac8 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1740,7 +1740,7 @@ static inline u32 file_mask_to_av(int mode, int mask)
 {
         u32 av = 0;
 
-        if ((mode & S_IFMT) != S_IFDIR) {
+        if (!S_ISDIR(mode)) {
                 if (mask & MAY_EXEC)
                         av |= FILE__EXECUTE;
                 if (mask & MAY_READ)
@@ -2507,7 +2507,7 @@ static int selinux_mount(char *dev_name,
         const struct cred *cred = current_cred();
 
         if (flags & MS_REMOUNT)
-                return superblock_has_perm(cred, path->mnt->mnt_sb,
+                return superblock_has_perm(cred, path->dentry->d_sb,
                                            FILESYSTEM__REMOUNT, NULL);
         else
                 return path_has_perm(cred, path, FILE__MOUNTON);
@@ -2598,7 +2598,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
         return 0;
 }
 
-static int selinux_inode_create(struct inode *dir, struct dentry *dentry, int mask)
+static int selinux_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
         return may_create(dir, dentry, SECCLASS_FILE);
 }
@@ -2618,7 +2618,7 @@ static int selinux_inode_symlink(struct inode *dir, struct dentry *dentry, const
         return may_create(dir, dentry, SECCLASS_LNK_FILE);
 }
 
-static int selinux_inode_mkdir(struct inode *dir, struct dentry *dentry, int mask)
+static int selinux_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mask)
 {
         return may_create(dir, dentry, SECCLASS_DIR);
 }
@@ -2628,7 +2628,7 @@ static int selinux_inode_rmdir(struct inode *dir, struct dentry *dentry)
         return may_link(dir, dentry, MAY_RMDIR);
 }
 
-static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 {
         return may_create(dir, dentry, inode_mode_to_security_class(mode));
 }
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 7db62b48eb42..e8af5b0ba80f 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -406,7 +406,7 @@ static int smack_sb_statfs(struct dentry *dentry)
 static int smack_sb_mount(char *dev_name, struct path *path,
                           char *type, unsigned long flags, void *data)
 {
-        struct superblock_smack *sbp = path->mnt->mnt_sb->s_security;
+        struct superblock_smack *sbp = path->dentry->d_sb->s_security;
         struct smk_audit_info ad;
 
         smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
@@ -435,7 +435,7 @@ static int smack_sb_umount(struct vfsmount *mnt, int flags)
         smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
         smk_ad_setfield_u_fs_path(&ad, path);
 
-        sbp = mnt->mnt_sb->s_security;
+        sbp = path.dentry->d_sb->s_security;
         return smk_curacc(sbp->smk_floor, MAY_WRITE, &ad);
 }
 
diff --git a/security/tomoyo/audit.c b/security/tomoyo/audit.c
index 075c3a6d1649..5ca47ea3049f 100644
--- a/security/tomoyo/audit.c
+++ b/security/tomoyo/audit.c
@@ -112,7 +112,7 @@ out:
  *
  * Returns file type string.
  */
-static inline const char *tomoyo_filetype(const mode_t mode)
+static inline const char *tomoyo_filetype(const umode_t mode)
 {
         switch (mode & S_IFMT) {
         case S_IFREG:
@@ -180,7 +180,7 @@ static char *tomoyo_print_header(struct tomoyo_request_info *r)
         for (i = 0; i < TOMOYO_MAX_PATH_STAT; i++) {
                 struct tomoyo_mini_stat *stat;
                 unsigned int dev;
-                mode_t mode;
+                umode_t mode;
                 if (!obj->stat_valid[i])
                         continue;
                 stat = &obj->stat[i];
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index ed311d7a8ce0..deeab7be5b97 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -564,7 +564,7 @@ struct tomoyo_mini_stat {
         uid_t uid;
         gid_t gid;
         ino_t ino;
-        mode_t mode;
+        umode_t mode;
         dev_t dev;
         dev_t rdev;
 };
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index d9f3ced8756e..80a09c37cac8 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -4,15 +4,8 @@
  * Copyright (C) 2005-2011  NTT DATA CORPORATION
  */
 
-#include <linux/types.h>
-#include <linux/mount.h>
-#include <linux/mnt_namespace.h>
-#include <linux/fs_struct.h>
-#include <linux/magic.h>
-#include <linux/slab.h>
-#include <net/sock.h>
 #include "common.h"
-#include "../../fs/internal.h"
+#include <linux/magic.h>
 
 /**
  * tomoyo_encode2 - Encode binary string to ascii string.
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c
index 2672ac4f3beb..482b2a5f48f0 100644
--- a/security/tomoyo/securityfs_if.c
+++ b/security/tomoyo/securityfs_if.c
@@ -224,7 +224,7 @@ static const struct file_operations tomoyo_operations = {
  *
  * Returns nothing.
  */
-static void __init tomoyo_create_entry(const char *name, const mode_t mode,
+static void __init tomoyo_create_entry(const char *name, const umode_t mode,
                                        struct dentry *parent, const u8 key)
 {
         securityfs_create_file(name, mode, parent, ((u8 *) NULL) + key,
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 4b327b691745..620d37c159a3 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -186,7 +186,7 @@ static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry)
  * Returns 0 on success, negative value otherwise.
  */
 static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry,
-                             int mode)
+                             umode_t mode)
 {
         struct path path = { parent->mnt, dentry };
         return tomoyo_path_number_perm(TOMOYO_TYPE_MKDIR, &path,
@@ -234,7 +234,7 @@ static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry,
  * Returns 0 on success, negative value otherwise.
  */
 static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry,
-                             int mode, unsigned int dev)
+                             umode_t mode, unsigned int dev)
 {
         struct path path = { parent->mnt, dentry };
         int type = TOMOYO_TYPE_CREATE;
@@ -353,17 +353,14 @@ static int tomoyo_file_ioctl(struct file *file, unsigned int cmd,
 /**
  * tomoyo_path_chmod - Target for security_path_chmod().
  *
- * @dentry: Pointer to "struct dentry".
- * @mnt:    Pointer to "struct vfsmount".
- * @mode:   DAC permission mode.
+ * @path: Pointer to "struct path".
+ * @mode: DAC permission mode.
  *
  * Returns 0 on success, negative value otherwise.
  */
-static int tomoyo_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
-                             mode_t mode)
+static int tomoyo_path_chmod(struct path *path, umode_t mode)
 {
-        struct path path = { mnt, dentry };
-        return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, &path,
+        return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, path,
                                        mode & S_IALLUGO);
 }