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From: Greg Kurz <groug@kaod.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	Vivek Goyal <vgoyal@redhat.com>,
	virtio-fs@redhat.com, Greg Kurz <groug@kaod.org>
Subject: [PATCH 0/4] fuse: Some fixes for submounts
Date: Tue, 25 May 2021 17:02:26 +0200	[thread overview]
Message-ID: <20210525150230.157586-1-groug@kaod.org> (raw)

While working on adding syncfs() support in FUSE, I've hit some severe
bugs with submounts (a crash and an infinite loop). The fix for the
crash is straightforward (patch 1), but the fix for the infinite loop
is more invasive : as suggested by Miklos, a simple bug fix is applied
first (patch 2) and the final fix (patch 3) is applied on top.

Greg Kurz (4):
  fuse: Fix crash in fuse_dentry_automount() error path
  fuse: Fix infinite loop in sget_fc()
  fuse: Call vfs_get_tree() for submounts
  fuse: Make fuse_fill_super_submount() static

 fs/fuse/dir.c       | 46 ++++++++++---------------------------------
 fs/fuse/fuse_i.h    |  9 +++------
 fs/fuse/inode.c     | 48 +++++++++++++++++++++++++++++++++++++++++++--
 fs/fuse/virtio_fs.c |  3 +++
 4 files changed, 62 insertions(+), 44 deletions(-)

-- 
2.31.1



             reply	other threads:[~2021-05-25 15:02 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-25 15:02 Greg Kurz [this message]
2021-05-25 15:02 ` [PATCH 1/4] fuse: Fix crash in fuse_dentry_automount() error path Greg Kurz
2021-05-27  9:51   ` [Virtio-fs] " Max Reitz
2021-05-25 15:02 ` [PATCH 2/4] fuse: Fix infinite loop in sget_fc() Greg Kurz
2021-05-27 10:08   ` [Virtio-fs] " Max Reitz
2021-05-27 12:31     ` Greg Kurz
2021-05-25 15:02 ` [PATCH 3/4] fuse: Call vfs_get_tree() for submounts Greg Kurz
2021-05-27 13:24   ` [Virtio-fs] " Max Reitz
2021-06-03  7:34     ` Greg Kurz
2021-05-25 15:02 ` [PATCH 4/4] fuse: Make fuse_fill_super_submount() static Greg Kurz
2021-05-27 13:28   ` [Virtio-fs] " Max Reitz

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