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Juntong Deng 952237b5a9 kasan: increase the number of bits to shift when recording extra timestamps In `5d4c6ac946` ("kasan: record and report more information") I thought that printk only displays a maximum of 99999 seconds, but actually printk can display a larger number of seconds. So increase the number of bits to shift when recording the extra timestamp (44 bits), without affecting the precision, shift it right by 9 bits, discarding all bits that do not affect the microsecond part (nanoseconds will not be shown). Currently the maximum time that can be displayed is 9007199.254740s, because 11111111111111111111111111111111111111111111 (44 bits) << 9 = 11111111111111111111111111111111111111111111000000000 = 9007199.254740 Link: https://lkml.kernel.org/r/AM6PR03MB58481629F2F28CE007412139994D2@AM6PR03MB5848.eurprd03.prod.outlook.com Fixes: `5d4c6ac946` ("kasan: record and report more information") Signed-off-by: Juntong Deng <juntong.deng@outlook.com> Acked-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-02-22 15:27:20 -08:00
arch	Introduce cpu_dcache_is_aliasing() across all architectures	2024-02-22 15:27:19 -08:00
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drivers	dax: fix incorrect list of data cache aliasing architectures	2024-02-22 15:27:20 -08:00
fs	dax: check for data cache aliasing at runtime	2024-02-22 15:27:19 -08:00
include	Introduce cpu_dcache_is_aliasing() across all architectures	2024-02-22 15:27:19 -08:00
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mm	kasan: increase the number of bits to shift when recording extra timestamps	2024-02-22 15:27:20 -08:00
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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.