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-rw-r--r--fs/namei.c78
1 files changed, 30 insertions, 48 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 91ce1f2..043d587 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -525,6 +525,22 @@ static inline int __do_follow_link(struct path *path, struct nameidata *nd)
return error;
}
+static inline void dput_path(struct path *path, struct nameidata *nd)
+{
+ dput(path->dentry);
+ if (path->mnt != nd->mnt)
+ mntput(path->mnt);
+}
+
+static inline void path_to_nameidata(struct path *path, struct nameidata *nd)
+{
+ dput(nd->dentry);
+ if (nd->mnt != path->mnt)
+ mntput(nd->mnt);
+ nd->mnt = path->mnt;
+ nd->dentry = path->dentry;
+}
+
/*
* This limits recursive symlink follows to 8, while
* limiting consecutive symlinks to 40.
@@ -552,9 +568,7 @@ static inline int do_follow_link(struct path *path, struct nameidata *nd)
nd->depth--;
return err;
loop:
- dput(path->dentry);
- if (path->mnt != nd->mnt)
- mntput(path->mnt);
+ dput_path(path, nd);
path_release(nd);
return err;
}
@@ -813,13 +827,8 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
err = -ENOTDIR;
if (!inode->i_op)
break;
- } else {
- dput(nd->dentry);
- if (nd->mnt != next.mnt)
- mntput(nd->mnt);
- nd->mnt = next.mnt;
- nd->dentry = next.dentry;
- }
+ } else
+ path_to_nameidata(&next, nd);
err = -ENOTDIR;
if (!inode->i_op->lookup)
break;
@@ -859,13 +868,8 @@ last_component:
if (err)
goto return_err;
inode = nd->dentry->d_inode;
- } else {
- dput(nd->dentry);
- if (nd->mnt != next.mnt)
- mntput(nd->mnt);
- nd->mnt = next.mnt;
- nd->dentry = next.dentry;
- }
+ } else
+ path_to_nameidata(&next, nd);
err = -ENOENT;
if (!inode)
break;
@@ -901,9 +905,7 @@ return_reval:
return_base:
return 0;
out_dput:
- dput(next.dentry);
- if (nd->mnt != next.mnt)
- mntput(next.mnt);
+ dput_path(&next, nd);
break;
}
path_release(nd);
@@ -1314,10 +1316,8 @@ int vfs_create(struct inode *dir, struct dentry *dentry, int mode,
return error;
DQUOT_INIT(dir);
error = dir->i_op->create(dir, dentry, mode, nd);
- if (!error) {
+ if (!error)
fsnotify_create(dir, dentry->d_name.name);
- security_inode_post_create(dir, dentry, mode);
- }
return error;
}
@@ -1507,11 +1507,7 @@ do_last:
if (path.dentry->d_inode->i_op && path.dentry->d_inode->i_op->follow_link)
goto do_link;
- dput(nd->dentry);
- nd->dentry = path.dentry;
- if (nd->mnt != path.mnt)
- mntput(nd->mnt);
- nd->mnt = path.mnt;
+ path_to_nameidata(&path, nd);
error = -EISDIR;
if (path.dentry->d_inode && S_ISDIR(path.dentry->d_inode->i_mode))
goto exit;
@@ -1522,9 +1518,7 @@ ok:
return 0;
exit_dput:
- dput(path.dentry);
- if (nd->mnt != path.mnt)
- mntput(path.mnt);
+ dput_path(&path, nd);
exit:
path_release(nd);
return error;
@@ -1639,10 +1633,8 @@ int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
DQUOT_INIT(dir);
error = dir->i_op->mknod(dir, dentry, mode, dev);
- if (!error) {
+ if (!error)
fsnotify_create(dir, dentry->d_name.name);
- security_inode_post_mknod(dir, dentry, mode, dev);
- }
return error;
}
@@ -1712,10 +1704,8 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
DQUOT_INIT(dir);
error = dir->i_op->mkdir(dir, dentry, mode);
- if (!error) {
+ if (!error)
fsnotify_mkdir(dir, dentry->d_name.name);
- security_inode_post_mkdir(dir,dentry, mode);
- }
return error;
}
@@ -1951,10 +1941,8 @@ int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname, i
DQUOT_INIT(dir);
error = dir->i_op->symlink(dir, dentry, oldname);
- if (!error) {
+ if (!error)
fsnotify_create(dir, dentry->d_name.name);
- security_inode_post_symlink(dir, dentry, oldname);
- }
return error;
}
@@ -2024,10 +2012,8 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
DQUOT_INIT(dir);
error = dir->i_op->link(old_dentry, dir, new_dentry);
up(&old_dentry->d_inode->i_sem);
- if (!error) {
+ if (!error)
fsnotify_create(dir, new_dentry->d_name.name);
- security_inode_post_link(old_dentry, dir, new_dentry);
- }
return error;
}
@@ -2146,11 +2132,8 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
d_rehash(new_dentry);
dput(new_dentry);
}
- if (!error) {
+ if (!error)
d_move(old_dentry,new_dentry);
- security_inode_post_rename(old_dir, old_dentry,
- new_dir, new_dentry);
- }
return error;
}
@@ -2176,7 +2159,6 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
/* The following d_move() should become unconditional */
if (!(old_dir->i_sb->s_type->fs_flags & FS_ODD_RENAME))
d_move(old_dentry, new_dentry);
- security_inode_post_rename(old_dir, old_dentry, new_dir, new_dentry);
}
if (target)
up(&target->i_sem);
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