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4d4a2c71b8
The introduction of sg_miter was a bit sloppy as it didn't
exactly mimic the semantics of the old code on multiblock reads
and writes: these like you to:
- Advance to the first sglist entry *before* starting to read
any blocks from the card.
- Advance and check availability of the next entry *right after*
processing one block.
Not checking if we have more sglist entries right after
reading a block will lead to this not being checked until we
return to the callback to read out more blocks, i.e. until the
next interrupt arrives. Since the last block is the last one
(no more data will arrive) there will not be a next interrupt,
and we will be waiting forever resulting in a timeout for
command 18 when reading multiple blocks.
The same bug was fixed also in the writing of multiple blocks.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| net | ||
| rust | ||
| samples | ||
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| security | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
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| .get_maintainer.ignore | ||
| .gitattributes | ||
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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.