805b754d49
Move the security related fields above the u8s to eliminate a hole in the
struct.
pahole before:
struct ib_mad_agent {
...
u32 hi_tid; /* 48 4 */
u32 flags; /* 52 4 */
u8 port_num; /* 56 1 */
u8 rmpp_version; /* 57 1 */
/* XXX 6 bytes hole, try to pack */
/* --- cacheline 1 boundary (64 bytes) --- */
void * security; /* 64 8 */
bool smp_allowed; /* 72 1 */
bool lsm_nb_reg; /* 73 1 */
/* XXX 6 bytes hole, try to pack */
struct notifier_block lsm_nb; /* 80 24 */
/* XXX last struct has 4 bytes of padding */
/* size: 104, cachelines: 2, members: 14 */
...
};
pahole after:
struct ib_mad_agent {
...
u32 hi_tid; /* 48 4 */
u32 flags; /* 52 4 */
void * security; /* 56 8 */
/* --- cacheline 1 boundary (64 bytes) --- */
struct notifier_block lsm_nb; /* 64 24 */
/* XXX last struct has 4 bytes of padding */
u8 port_num; /* 88 1 */
u8 rmpp_version; /* 89 1 */
bool smp_allowed; /* 90 1 */
bool lsm_nb_reg; /* 91 1 */
/* size: 96, cachelines: 2, members: 14 */
...
};
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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.