From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B4D8762F7; Mon, 8 Apr 2024 13:04:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712581483; cv=none; b=g3jvr3lmunVGLhgwXsw2pm9hIb3TuSA68IhbunFRBXKDBS+rlQsVP69zC7R+xWyLpMPhhrfTU732j9CaZxvOErc/86tRx0qTL9/G2h6OvuFVGDvLgmGC43DyUwhLeIfe/QgccbFCFwqyFHNWjwfkNpI6k3fQyk7HHTYVDLOf9xQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712581483; c=relaxed/simple; bh=5HmHJt8b2EPSFvcGq3FKShe4V0TOWiBirckMFBkqTTI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CG4rfFmq1xiSXPkvUW6rWd0qBpFru29kJR366nVutRIq+ebAIqyXIT+MeQurNLBLfbkuNuUZLma/gknuk2MG5ZFS8QzyfYfXkWhmiPPqgRdyyvb3PzQFLGFQa6MRDWauRaP1scTj6TQeDUWuTgPxUkhh7c6rssknN9adwr2Q08E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=S/lR6cf8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="S/lR6cf8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17853C433A6; Mon, 8 Apr 2024 13:04:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712581483; bh=5HmHJt8b2EPSFvcGq3FKShe4V0TOWiBirckMFBkqTTI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S/lR6cf8Hsblo9Pg4p1HFWQx1SMU1lPVA246+fFmm0/cTIBsmbMaRwt41lzhBeWxb I6CjGCUbZ9ufmdhW8qIrepFnFCmeA2uN5eupk0guEldKl+euz5UlB0ET98nn0gZP5p Zw53N4+/9ZgH5rAuY5pJF+SalFl90ChTuqC7At9Y= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Miklos Szeredi , Sasha Levin Subject: [PATCH 5.15 055/690] fuse: dont unhash root Date: Mon, 8 Apr 2024 14:48:41 +0200 Message-ID: <20240408125401.515452835@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125359.506372836@linuxfoundation.org> References: <20240408125359.506372836@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Miklos Szeredi [ Upstream commit b1fe686a765e6c0d71811d825b5a1585a202b777 ] The root inode is assumed to be always hashed. Do not unhash the root inode even if it is marked BAD. Fixes: 5d069dbe8aaf ("fuse: fix bad inode") Cc: # v5.11 Signed-off-by: Miklos Szeredi Signed-off-by: Sasha Levin --- fs/fuse/fuse_i.h | 1 - fs/fuse/inode.c | 7 +++++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 4b8f094345e12..55b7ca26fb8ab 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -899,7 +899,6 @@ static inline bool fuse_stale_inode(const struct inode *inode, int generation, static inline void fuse_make_bad(struct inode *inode) { - remove_inode_hash(inode); set_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state); } diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 97dc24557bf24..62b4143ccf26c 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -413,8 +413,11 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, } else if (fuse_stale_inode(inode, generation, attr)) { /* nodeid was reused, any I/O on the old inode should fail */ fuse_make_bad(inode); - iput(inode); - goto retry; + if (inode != d_inode(sb->s_root)) { + remove_inode_hash(inode); + iput(inode); + goto retry; + } } fi = get_fuse_inode(inode); spin_lock(&fi->lock); -- 2.43.0