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2111f39459
btree writes update the btree node key after every write, in order to update sectors_written, and they also might need to drop pointers if one of the writes failed in a replicated btree node. But the btree node might also have had a pointer dropped while the write was in flight, by bch2_dev_metadata_drop(), and thus there was a bug where the btree node write would ovewrite the btree node's key with what it had at the start of the write. Fix this by dropping pointers not currently in the btree node key. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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.