28ace84b10
The current position of .rss_flags field in struct rss_info causes
that fields .rsstable and .rssqueue (both 128 bytes long) crosses
cache-line boundaries. Moving it at the end properly align all fields.
Before patch:
struct rss_info {
u64 rss_flags; /* 0 8 */
u8 rsstable[128]; /* 8 128 */
/* --- cacheline 2 boundary (128 bytes) was 8 bytes ago --- */
u8 rss_queue[128]; /* 136 128 */
/* --- cacheline 4 boundary (256 bytes) was 8 bytes ago --- */
u8 rss_hkey[40]; /* 264 40 */
};
After patch:
struct rss_info {
u8 rsstable[128]; /* 0 128 */
/* --- cacheline 2 boundary (128 bytes) --- */
u8 rss_queue[128]; /* 128 128 */
/* --- cacheline 4 boundary (256 bytes) --- */
u8 rss_hkey[40]; /* 256 40 */
u64 rss_flags; /* 296 8 */
};
Signed-off-by: Ivan Vecera <cera@cera.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.