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066e053fe2
Pre-content hooks in page faults introduces potential deadlock of HSM handler in userspace with filesystem freezing. The requirement with pre-content event is that for every accessed file range an event covering at least this range will be generated at least once before the file data is accesses. In preparation to disabling pre-content event hooks on page faults, add pre-content hooks at mmap() variants for the entire mmaped range, so HSM can fill content when user requests to map a portion of the file. Note that exec() variant also calls vm_mmap_pgoff() internally to map code sections, so pre-content hooks are also generated in this case. Link: https://lore.kernel.org/linux-fsdevel/7ehxrhbvehlrjwvrduoxsao5k3x4aw275patsb3krkwuq573yv@o2hskrfawbnc/ Suggested-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://patch.msgid.link/20250312073852.2123409-2-amir73il@gmail.com
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.