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995d504100
Remove the code to disable IRQs when unregistering KVM's user-return notifier now that KVM doesn't invoke kvm_on_user_return() when disabling virtualization via IPI function call, i.e. now that there's no need to guard against re-entrancy via IPI callback. Note, disabling IRQs has largely been unnecessary since commita377ac1cd9("x86/entry: Move user return notifier out of loop") moved fire_user_return_notifiers() into the section with IRQs disabled. In doing so, the commit somewhat inadvertently fixed the underlying issue that was papered over by commit1650b4ebc9("KVM: Disable irq while unregistering user notifier"). I.e. in practice, the code and comment has been stale since commita377ac1cd9. Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com> [sean: rewrite changelog after rebasing, drop lockdep assert] Reviewed-by: Kai Huang <kai.huang@intel.com> Link: https://patch.msgid.link/20251030191528.3380553-5-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@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 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.