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acbfdf321a
heap id is part of ION's UAPI. Since the heaps are now kernel modules, the current scheme of incrementing the heap id for the next heap doesn't work. For example, if one insert->remove->insert the system heap module, the heap id associated with the system heap changes. This immediately breaks all of userspace. So, in order to fix this, we reserve first 16 heap ids for GKI heaps and leave 16 more heap ids for any custom heap type that may exist. Bug: 133508579 Test: ion-unit-test Test: ion-unit-test (after removal and insertion of system heap module) Change-Id: I8412e590263869e029151a017b072399f54206f0 Signed-off-by: Sandeep Patil <sspatil@google.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 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.