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ad520141b1
When partially overwriting an extent in an older snapshot, the existing extent has to be split. If the existing extent was overwritten in a different (sibling) snapshot, we have to ensure that the split won't be visible in the sibling snapshot. data_update.c already has code for this, bch2_insert_snapshot_writeouts() - we just need to move it into btree_update_leaf.c and change bch2_trans_update_extent() to use it as well. 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.