31cc07761c
The in_interrupt() check in sr_init_command() is a leftover from the past, pre v2.3.16 era to be exact. Back then the ioctl() was served by `sr' itself and sector size changes by CDROMREADMODE2 (as noted in the comment) were accounted within sr's data structures which allowed a "lazy" reset so it could be skipped on the next request and reset back to the default value once the device node was closed or before a command from the blockqueue was issued. This does not work like that anymore. The CDROMREADMODE2 is served by cdrom's mmc_ioctl() function which may change the sector size but the `sr' driver does not learn about it and so its ->sector_size is not updated. The ioctl() resets the changed sector size back to 2048. sr_read_sector() also resets the sector size back to the default once it is done. Remove the conditional sector size update from sr_init_command() and sr_release() because it is not needed. Link: https://lkml.kernel.org/r/20201204164803.ovwurzs3257em2rp@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.