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Linux kernel source tree
7674073b2e
A crash happens when inject completing request long time(nearly 30s). Each name space has a request queue, when inject completing request long time, multi request queues may have time out requests at the same time, nvme_rdma_timeout will execute concurrently. Multi requests in different request queues may be queued in the same rdma queue, multi nvme_rdma_timeout may call nvme_rdma_stop_queue at the same time. The first nvme_rdma_timeout will clear NVME_RDMA_Q_LIVE and continue stopping the rdma queue(drain qp), but the others check NVME_RDMA_Q_LIVE is already cleared, and then directly complete the requests, complete request before the qp is fully drained may lead to a use-after-free condition. Add a multex lock to serialize nvme_rdma_stop_queue. Signed-off-by: Chao Leng <lengchao@huawei.com> Tested-by: Israel Rukshin <israelr@nvidia.com> Reviewed-by: Israel Rukshin <israelr@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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| 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 | ||
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| 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.