From: Rishabh Bhatnagar <risbhat@amazon.com>
To: <gregkh@linuxfoundation.org>, <pc@cjr.nz>
Cc: <stable@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-cifs@vger.kernel.org>,
Rishabh Bhatnagar <risbhat@amazon.com>
Subject: [PATCH 5.4 0/5] CIFS DFS fixes for 5.4
Date: Fri, 23 Jun 2023 21:34:01 +0000 [thread overview]
Message-ID: <20230623213406.5596-1-risbhat@amazon.com> (raw)
We are seeing deadlock in cifs code while updating volume in
cifs_reconnect. There are few fixes available in stable trees
already. This series backports some patches back to 5.4 stable.
__schedule+0x268/0x6e0
schedule+0x2f/0xa0
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.7+0x20b/0x470
? dfs_cache_update_vol+0x45/0x2a0 [cifs]
dfs_cache_update_vol+0x45/0x2a0 [cifs]
cifs_reconnect+0x6f2/0xef0 [cifs]
cifs_handle_standard+0x18d/0x1b0 [cifs]
cifs_demultiplex_thread+0xa5c/0xc90 [cifs]
? cifs_handle_standard+0x1b0/0x1b0 [cifs]
Paulo Alcantara (SUSE) (5):
cifs: Clean up DFS referral cache
cifs: Get rid of kstrdup_const()'d paths
cifs: Introduce helpers for finding TCP connection
cifs: Merge is_path_valid() into get_normalized_path()
cifs: Fix potential deadlock when updating vol in cifs_reconnect()
fs/cifs/dfs_cache.c | 701 +++++++++++++++++++++++---------------------
1 file changed, 372 insertions(+), 329 deletions(-)
--
2.40.1
next reply other threads:[~2023-06-23 21:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-23 21:34 Rishabh Bhatnagar [this message]
2023-06-23 21:34 ` [PATCH 5.4 1/5] cifs: Clean up DFS referral cache Rishabh Bhatnagar
2023-06-23 21:34 ` [PATCH 5.4 2/5] cifs: Get rid of kstrdup_const()'d paths Rishabh Bhatnagar
2023-06-25 15:38 ` David Laight
2023-06-25 16:58 ` Paulo Alcantara
2023-06-23 21:34 ` [PATCH 5.4 3/5] cifs: Introduce helpers for finding TCP connection Rishabh Bhatnagar
2023-06-26 6:04 ` Shyam Prasad N
2023-06-26 6:13 ` Greg KH
2023-06-26 6:30 ` Shyam Prasad N
2023-06-23 21:34 ` [PATCH 5.4 4/5] cifs: Merge is_path_valid() into get_normalized_path() Rishabh Bhatnagar
2023-06-23 21:34 ` [PATCH 5.4 5/5] cifs: Fix potential deadlock when updating vol in cifs_reconnect() Rishabh Bhatnagar
2023-06-23 22:08 ` [PATCH 5.4 0/5] CIFS DFS fixes for 5.4 Paulo Alcantara
2023-06-24 14:10 ` Greg KH
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