The session lock in iscsi_session_chkready() is not needed because when we transition from logged into to another state we will block and/or remove the devices under the session, so no new I/O will be sent to the drivers after the block/remove. I/O that races with the block/removal is cleaned up by the drivers when it handles all outstanding I/O, so this just added an extra lock in the main I/O path. This patch removes the lock like other transport classes. Link: https://lore.kernel.org/r/20210207044608.27585-10-michael.christie@oracle.com Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.
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