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e9b1108316
Due to bug history and code review, the node reference counting approach in the driver isn't implemented consistently with how the scsi and nvme transport perform registrations and unregistrations and their callbacks. This resulted in many bad/stale node pointers. Reword the driver so that reference handling is performed as follows: - The initial node reference is taken on structure allocation - Take a reference on any add/register call to the transport - Remove a reference on any delete/unregister call to the transport - After the node has fully removed from both the SCSI and NVMEe transports (dev_loss_callbacks have called back) call the discovery engine DEVICE_RM event which will remove the final reference and release the node structure. - Alter dev_loss handling when a vport or base port is unloading. - Remove the put_node handling - no longer needed. - Rewrite the vport_delete handling on reference counts. Part of this effort was driven from the FDISC not registering with the transport and disrupting the model for node reference counting. - Deleted lpfc_nlp_remove. Pushed it's remaining ops into lpfc_nlp_release. - Several other small code cleanups. Link: https://lore.kernel.org/r/20201115192646.12977-5-james.smart@broadcom.com Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> 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.