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a97451ac1e
core_alua_check_nonop_delay() uses in_interrupt() to decide if it is safe to sleep. The usage of in_interrupt() in drivers is phased out and Linus clearly requested that code which changes behaviour depending on context should either be separated or the context be conveyed in an argument passed by the caller, which usually knows the context. core_alua_check_nonop_delay() has two callers: - target_submit_cmd_map_sgls() Kernel doc says it that it must be called from process context. Also has a BUG_ON(in_interrupt()). - iscsit_setup_scsi_cmd() Invokes iscsit_add_reject_cmd() which does GFP_KERNEL allocation and target_cmd_init_cdb() which may do GFP_KERNEL allocations. Remove the in_interrupt() check because all callers are from preemptible context. Link: https://lore.kernel.org/r/20201220203638.43615-5-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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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.