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| Filename | Latest commit message | Latest commit date |
|---|---|---|
3562f5d9f2
The WRITE ZEROES command has no data transfer so that we need to
initialize the struct (nvmet_req *req)->data_len to 0x0. While
(nvmet_req *req)->transfer_len is initialized in nvmet_req_init(),
data_len will be initialized by nowhere which might cause the failure
with status code NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR randomly. It's
because nvmet_req_execute() checks like:
if (unlikely(req->data_len != req->transfer_len)) {
req->error_loc = offsetof(struct nvme_common_command, dptr);
nvmet_req_complete(req, NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR);
} else
req->execute(req);
This patch fixes req->data_len not to be a randomly assigned by
initializing it to 0x0 when preparing the command in
nvmet_bdev_parse_io_cmd().
nvmet_file_parse_io_cmd() which is for file-backed I/O has already
initialized the data_len field to 0x0, though.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
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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.