mirror of https://gitee.com/openkylin/linux.git
e53d3aa0b6
This code goes back to a time when transaction commits wrote directly to iclogs. The associated log items were pinned, written to the log, and then "uncommitted" if some part of the log write had failed. This uncommit sequence called an ->iop_unpin_remove() handler that was eventually folded into ->iop_unpin() via the remove parameter. The log subsystem has since changed significantly in that transactions commit to the CIL instead of direct to iclogs, though log items must still be aborted in the event of an eventual log I/O error. However, the context for a log item abort is now asynchronous from transaction commit, which means the committing transaction has been freed by this point in time and the transaction uncommit sequence of events is no longer relevant. Further, since stale buffers remain locked at transaction commit through unpin, we can be certain that the buffer is not associated with any transaction when the unpin callback executes. Remove this unused hunk of code and replace it with an assertion that the buffer is disassociated from transaction context. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org> |
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| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.