From: Mike Snitzer <snitzer@kernel.org>
To: trondmy@kernel.org
Cc: linux-nfs@vger.kernel.org
Subject: Re: NFS/localio: Fix a race in nfs_local_open_fh()
Date: Tue, 22 Apr 2025 10:39:56 -0400 [thread overview]
Message-ID: <aAeqPJpdVR4uHM0l@kernel.org> (raw)
In-Reply-To: <3d2d3ade569302f7d52307d71e0fe1c46fc95f32.1745261446.git.trond.myklebust@hammerspace.com>
On Mon, Apr 21, 2025 at 02:52:42PM -0400, trondmy@kernel.org wrote:
> From: Trond Myklebust <trond.myklebust@hammerspace.com>
>
> Once the clp->cl_uuid.lock has been dropped, another CPU could come in
> and free the struct nfsd_file that was just added. To prevent that from
> happening, take the RCU read lock before dropping the spin lock.
>
> Fixes: 86e00412254a ("nfs: cache all open LOCALIO nfsd_file(s) in client")
> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
prev parent reply other threads:[~2025-04-22 14:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-21 18:52 [PATCH] NFS/localio: Fix a race in nfs_local_open_fh() trondmy
2025-04-22 14:39 ` Mike Snitzer [this message]
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