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7579c85d9c
To avoid tragic loss in the event of transient errors (i.e., a btree node topology error that was later corrected by btree node scan), we can't delete reflink pointers to correct errors. This adds a new error bit to bch_reflink_p, indicating that it is known to point to a missing indirect extent, and the error has already been reported. Indirect extent lookups now use bch2_lookup_indirect_extent(), which on error reports it as a fsck_err() and sets the error bit, and clears it if necessary on succesful lookup. This also gets rid of the bch2_inconsistent_error() call in __bch2_read_indirect_extent, and in the reflink_p trigger: part of the online self healing project. An on disk format change isn't necessary here: setting the error bit will be interpreted by older versions as pointing to a different index, which will also be missing - which is fine. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> |
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| arch | ||
| block | ||
| 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 | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .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 reStructuredText 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.