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Frederic Weisbecker 9f68b5b74c sched: Detect call to schedule from critical entry code
Detect calls to schedule() between user_enter() and user_exit(). Those
are symptoms of early entry code that either forgot to protect a call
to schedule() inside exception_enter()/exception_exit() or, in the case
of HAVE_CONTEXT_TRACKING_OFFSTACK, enabled interrupts or preemption in
a wrong spot.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20201117151637.259084-4-frederic@kernel.org
2020-11-19 11:25:42 +01:00
arch context_tracking: Introduce HAVE_CONTEXT_TRACKING_OFFSTACK 2020-11-19 11:25:41 +01:00
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Documentation Char/Misc fixes/removals for 5.10-rc2 2020-11-01 10:05:16 -08:00
drivers Char/Misc fixes/removals for 5.10-rc2 2020-11-01 10:05:16 -08:00
fs Merge branch 'x86/entry' into core/entry 2020-11-16 20:51:59 +01:00
include context_tracking: Don't implement exception_enter/exit() on CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK 2020-11-19 11:25:42 +01:00
init
ipc
kernel sched: Detect call to schedule from critical entry code 2020-11-19 11:25:42 +01:00
lib Driver core / Documentation fixes for 5.10-rc2 2020-11-01 09:59:13 -08:00
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MAINTAINERS Char/Misc fixes/removals for 5.10-rc2 2020-11-01 10:05:16 -08:00
Makefile Linux 5.10-rc2 2020-11-01 14:43:51 -08:00
README

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.