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    Subject[RFC 10/28] Add a struct vfsmount parameter to vfs_symlink()
    Add a struct vfsmount parameter to vfs_symlink()

    Signed-off-by: Tony Jones <tonyj@suse.de>
    Signed-off-by: Andreas Gruenbacher <agruen@suse.de>

    Index: linux-2.6/fs/ecryptfs/inode.c
    ===================================================================
    --- linux-2.6.orig/fs/ecryptfs/inode.c
    +++ linux-2.6/fs/ecryptfs/inode.c
    @@ -462,6 +462,7 @@ static int ecryptfs_symlink(struct inode
    {
    int rc;
    struct dentry *lower_dentry;
    + struct vfsmount *lower_mnt;
    struct dentry *lower_dir_dentry;
    umode_t mode;
    char *encoded_symname;
    @@ -470,6 +471,7 @@ static int ecryptfs_symlink(struct inode

    lower_dentry = ecryptfs_dentry_to_lower(dentry);
    dget(lower_dentry);
    + lower_mnt = ecryptfs_dentry_to_lower_mnt(dentry);
    lower_dir_dentry = lock_parent(lower_dentry);
    mode = S_IALLUGO;
    encoded_symlen = ecryptfs_encode_filename(crypt_stat, symname,
    @@ -479,7 +481,7 @@ static int ecryptfs_symlink(struct inode
    rc = encoded_symlen;
    goto out_lock;
    }
    - rc = vfs_symlink(lower_dir_dentry->d_inode, lower_dentry,
    + rc = vfs_symlink(lower_dir_dentry->d_inode, lower_dentry, lower_mnt,
    encoded_symname, mode);
    kfree(encoded_symname);
    if (rc || !lower_dentry->d_inode)
    Index: linux-2.6/fs/namei.c
    ===================================================================
    --- linux-2.6.orig/fs/namei.c
    +++ linux-2.6/fs/namei.c
    @@ -2185,7 +2185,8 @@ asmlinkage long sys_unlink(const char __
    return do_unlinkat(AT_FDCWD, pathname);
    }

    -int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname, int mode)
    +int vfs_symlink(struct inode *dir, struct dentry *dentry, struct vfsmount *mnt,
    + const char *oldname, int mode)
    {
    int error = may_create(dir, dentry, NULL);

    @@ -2231,7 +2232,8 @@ asmlinkage long sys_symlinkat(const char
    if (IS_ERR(dentry))
    goto out_unlock;

    - error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO);
    + error = vfs_symlink(nd.dentry->d_inode, dentry, nd.mnt, from,
    + S_IALLUGO);
    dput(dentry);
    out_unlock:
    mutex_unlock(&nd.dentry->d_inode->i_mutex);
    Index: linux-2.6/fs/nfsd/vfs.c
    ===================================================================
    --- linux-2.6.orig/fs/nfsd/vfs.c
    +++ linux-2.6/fs/nfsd/vfs.c
    @@ -1463,11 +1463,12 @@ nfsd_symlink(struct svc_rqst *rqstp, str
    else {
    strncpy(path_alloced, path, plen);
    path_alloced[plen] = 0;
    - host_err = vfs_symlink(dentry->d_inode, dnew, path_alloced, mode);
    + host_err = vfs_symlink(dentry->d_inode, dnew, NULL,
    + path_alloced, mode);
    kfree(path_alloced);
    }
    } else
    - host_err = vfs_symlink(dentry->d_inode, dnew, path, mode);
    + host_err = vfs_symlink(dentry->d_inode, dnew, NULL, path, mode);

    if (!host_err) {
    if (EX_ISSYNC(fhp->fh_export))
    Index: linux-2.6/include/linux/fs.h
    ===================================================================
    --- linux-2.6.orig/include/linux/fs.h
    +++ linux-2.6/include/linux/fs.h
    @@ -981,7 +981,7 @@ extern int vfs_permission(struct nameida
    extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *);
    extern int vfs_mkdir(struct inode *, struct dentry *, struct vfsmount *, int);
    extern int vfs_mknod(struct inode *, struct dentry *, struct vfsmount *, int, dev_t);
    -extern int vfs_symlink(struct inode *, struct dentry *, const char *, int);
    +extern int vfs_symlink(struct inode *, struct dentry *, struct vfsmount *, const char *, int);
    extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
    extern int vfs_rmdir(struct inode *, struct dentry *);
    extern int vfs_unlink(struct inode *, struct dentry *);
    -
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