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For some reason, the wait_on_bit() in nfsd4_deleg_getattr_conflict() is waiting forever, preventing a clean server shutdown. The requesting client might also hang waiting for a reply to the conflicting GETATTR. Invoking wait_on_bit() in an nfsd thread context is a hazard. The correct fix is to replace this wait_on_bit() call site with a mechanism that defers the conflicting GETATTR until the CB_GETATTR completes or is known to have failed. That will require some surgery and extended testing and it's late in the v6.7-rc cycle, so I'm reverting now in favor of trying again in a subsequent kernel release. This is my fault: I should have recognized the ramifications of calling wait_on_bit() in here before accepting this patch. Thanks to Dai Ngo <dai.ngo@oracle.com> for diagnosing the issue. Reported-by: Wolfgang Walter <linux-nfs@stwm.de> Closes: https://lore.kernel.org/linux-nfs/e3d43ecdad554fbdcaa7181833834f78@stwm.de/ Signed-off-by: Chuck Lever <chuck.lever@oracle.com> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.