| #
327409 |
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31-Dec-2017 |
mjg |
MFC r323235,r323236,r324789,r324863:
Introduce __read_frequently
While __read_mostly groups variables together, their placement is not
specified. In particular 2 frequently used variables can end up in
different lines.
This annotation is only expected to be used for variables read all the time,
e.g. on each syscall entry.
=============
Sprinkle __read_frequently on few obvious places.
Note that some of annotated variables should probably change their types
to something smaller, preferably bit-sized.
=============
Mark kdb_active as __read_frequently and switch to bool to eat less space.
=============
Change kdb_active type to u_char.
Fixes warnings from gcc and keeps the small size. Perhaps nesting should be moved
to another variablle.
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| #
219028 |
|
25-Feb-2011 |
netchild |
Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/
PMC/SYSV/...).
No FreeBSD version bump, the userland application to query the features will
be committed last and can serve as an indication of the availablility if
needed.
Sponsored by: Google Summer of Code 2010
Submitted by: kibab
Reviewed by: arch@ (parts by rwatson, trasz, jhb)
X-MFC after: to be determined in last commit with code from this project
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