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Filename Latest commit message Latest commit date
Helge Deller 6d091e0ddc parisc: Fix flush_dcache_page() for usage from irq context
commit 61e150fb310729c98227a5edf6e4a3619edc3702 upstream.

Since at least kernel 6.1, flush_dcache_page() is called with IRQs
disabled, e.g. from aio_complete().

But the current implementation for flush_dcache_page() on parisc
unintentionally re-enables IRQs, which may lead to deadlocks.

Fix it by using xa_lock_irqsave() and xa_unlock_irqrestore()
for the flush_dcache_mmap_*lock() macros instead.

Cc: linux-parisc@vger.kernel.org
Cc: stable@kernel.org # 5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-30 12:44:09 +01:00
arch parisc: Fix flush_dcache_page() for usage from irq context 2023-05-30 12:44:09 +01:00
block
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drivers gpio: mockup: Fix mode of debugfs files 2023-05-30 12:44:09 +01:00
fs btrfs: use nofs when cleaning up aborted transactions 2023-05-30 12:44:09 +01:00
include lib/string_helpers: Introduce string_upper() and string_lower() helpers 2023-05-30 12:44:08 +01:00
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net netfilter: nf_tables: hold mutex on netns pre_exit path 2023-05-30 12:44:08 +01:00
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scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-30 12:44:04 +01:00
security
sound ALSA: hda/realtek: Enable headset onLenovo M70/M90 2023-05-30 12:44:09 +01:00
tools selftests/memfd: Fix unknown type name build failure 2023-05-30 12:44:09 +01:00
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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.