diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c index 1ac0b3dcc077..fc05bd963506 100644 --- a/fs/9p/vfs_addr.c +++ b/fs/9p/vfs_addr.c @@ -136,21 +136,37 @@ static int v9fs_init_request(struct netfs_io_request *rreq, struct file *file) if (file) { fid = file->private_data; - if (!fid) - goto no_fid; + if (!fid) { + WARN_ONCE(1, "DIAG: v9fs_init_request: file has no fid, " + "inode->i_ino=%llx\n", rreq->inode->i_ino); + return -EINVAL; + } p9_fid_get(fid); } else if (S_ISLNK(rreq->inode->i_mode)) { dentry = d_find_any_alias(rreq->inode); - if (!dentry) - goto no_fid; + if (!dentry) { + WARN_ONCE(1, "DIAG: v9fs_init_request: symlink inode has no " + "dentry alias, inode->i_ino=%llx\n", + rreq->inode->i_ino); + return -EINVAL; + } fid = v9fs_fid_lookup(dentry); + if (IS_ERR(fid)) { + WARN_ONCE(1, "DIAG: v9fs_init_request: v9fs_fid_lookup failed " + "for symlink, err=%ld dentry=%pd4 inode->i_ino=%llx\n", + PTR_ERR(fid), dentry, rreq->inode->i_ino); + dput(dentry); + return PTR_ERR(fid); + } dput(dentry); - if (IS_ERR(fid)) - goto no_fid; } else { fid = v9fs_fid_find_inode(rreq->inode, writing, INVALID_UID, true); - if (!fid) - goto no_fid; + if (!fid) { + WARN_ONCE(1, "DIAG: v9fs_init_request: non-symlink inode has " + "no open/writeback fid, inode->i_ino=%llx\n", + rreq->inode->i_ino); + return -EINVAL; + } } rreq->wsize = fid->clnt->msize - P9_IOHDRSZ; @@ -163,11 +179,6 @@ static int v9fs_init_request(struct netfs_io_request *rreq, struct file *file) WARN_ON(rreq->origin == NETFS_READ_FOR_WRITE && !(fid->mode & P9_ORDWR)); rreq->netfs_priv = fid; return 0; - -no_fid: - WARN_ONCE(1, "folio expected an open fid inode->i_ino=%llx\n", - rreq->inode->i_ino); - return -EINVAL; } /**