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Trond Myklebust
fbf4bcc9a8
NFS: Fix an ABBA spinlock issue in pnfs_update_layout()
We need to drop the inode spinlock while calling nfs4_select_rw_stateid(), since nfs4_copy_delegation_stateid() could take the delegation lock. Note that it is safe to do this, since all other calls to pnfs_update_layout() for that inode will find themselves blocked by the lock we hold on NFS_LAYOUT_FIRST_LAYOUTGET. Fixes: fc51b1cf391d ("NFS: Beware when dereferencing the delegation cred") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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