diff options
Diffstat (limited to 'fs/9p')
| -rw-r--r-- | fs/9p/vfs_inode.c | 12 | ||||
| -rw-r--r-- | fs/9p/vfs_super.c | 28 |
2 files changed, 22 insertions, 18 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 2cb87ba4b1c1..5c6bdf82146c 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -530,9 +530,6 @@ error: if (vfid) v9fs_fid_destroy(vfid); - if (inode) - iput(inode); - return err; } @@ -1054,6 +1051,9 @@ static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer, int ret; char *link = __getname(); + if (unlikely(!link)) + return -ENOMEM; + if (buflen > PATH_MAX) buflen = PATH_MAX; @@ -1171,9 +1171,6 @@ error: if (vfid) v9fs_fid_destroy(vfid); - if (inode) - iput(inode); - return err; } @@ -1227,6 +1224,9 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir, } name = __getname(); + if (unlikely(!name)) + return -ENOMEM; + sprintf(name, "%d\n", oldfid->fid); retval = v9fs_vfs_mkspecial(dir, dentry, V9FS_DMLINK, name); __putname(name); diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 61c599b4a1e3..8b15bb22caca 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -99,12 +99,13 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses, * @flags: mount flags * @dev_name: device name that was mounted * @data: mount options + * @mnt: mountpoint record to be instantiated * */ -static struct super_block *v9fs_get_sb(struct file_system_type - *fs_type, int flags, - const char *dev_name, void *data) +static int v9fs_get_sb(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data, + struct vfsmount *mnt) { struct super_block *sb = NULL; struct v9fs_fcall *fcall = NULL; @@ -123,17 +124,19 @@ static struct super_block *v9fs_get_sb(struct file_system_type v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL); if (!v9ses) - return ERR_PTR(-ENOMEM); + return -ENOMEM; if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) { dprintk(DEBUG_ERROR, "problem initiating session\n"); - sb = ERR_PTR(newfid); + retval = newfid; goto out_free_session; } sb = sget(fs_type, NULL, v9fs_set_super, v9ses); - if (IS_ERR(sb)) + if (IS_ERR(sb)) { + retval = PTR_ERR(sb); goto out_close_session; + } v9fs_fill_super(sb, v9ses, flags); inode = v9fs_get_inode(sb, S_IFDIR | mode); @@ -184,19 +187,19 @@ static struct super_block *v9fs_get_sb(struct file_system_type goto put_back_sb; } - return sb; + return simple_set_mnt(mnt, sb); out_close_session: v9fs_session_close(v9ses); out_free_session: kfree(v9ses); - return sb; + return retval; put_back_sb: /* deactivate_super calls v9fs_kill_super which will frees the rest */ up_write(&sb->s_umount); deactivate_super(sb); - return ERR_PTR(retval); + return retval; } /** @@ -253,11 +256,12 @@ static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt) } static void -v9fs_umount_begin(struct super_block *sb) +v9fs_umount_begin(struct vfsmount *vfsmnt, int flags) { - struct v9fs_session_info *v9ses = sb->s_fs_info; + struct v9fs_session_info *v9ses = vfsmnt->mnt_sb->s_fs_info; - v9fs_session_cancel(v9ses); + if (flags & MNT_FORCE) + v9fs_session_cancel(v9ses); } static struct super_operations v9fs_super_ops = { |