kernel-hacking-2024-linux-s.../drivers
Christoph Lameter 6c036527a6 [PATCH] mostly_read data section
Add a new section called ".data.read_mostly" for data items that are read
frequently and rarely written to like cpumaps etc.

If these maps are placed in the .data section then these frequenly read
items may end up in cachelines with data is is frequently updated.  In that
case all processors in an SMP system must needlessly reload the cachelines
again and again containing elements of those frequently used variables.

The ability to share these cachelines will allow each cpu in an SMP system
to keep local copies of those shared cachelines thereby optimizing
performance.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Shobhit Dayal <shobhit@calsoftinc.com>
Signed-off-by: Christoph Lameter <christoph@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:46 -07:00
..
acorn
acpi If ACPI doesn't find an irq listed, don't accept 0 as a valid PCI irq. 2005-07-02 10:35:33 -07:00
atm
base
block
bluetooth
cdrom
char [PATCH] mostly_read data section 2005-07-07 18:23:46 -07:00
cpufreq [PATCH] pm: fix u32 vs. pm_message_t confusion in cpufreq 2005-07-07 18:23:43 -07:00
crypto [CRYPTO] Update IV correctly for Padlock CBC encryption 2005-07-06 13:54:09 -07:00
dio
eisa
fc4
firmware
i2c [PATCH] openfirmware: generate device table for userspace 2005-07-06 12:55:20 -07:00
ide [PATCH] openfirmware: generate device table for userspace 2005-07-06 12:55:20 -07:00
ieee1394 ieee1394: fix broken signed char assumption. 2005-07-06 13:05:50 -07:00
infiniband
input
isdn
macintosh [PATCH] openfirmware: implement hotplug for macio devices 2005-07-06 12:55:20 -07:00
mca
md
media [DVB]: Do not include <linux/irq.h> from drivers. 2005-07-06 15:41:17 -07:00
message [PATCH] pm: more u32 vs. pm_message_t fixes 2005-07-07 18:23:43 -07:00
misc
mmc [PATCH] MMC: wbsd cleanups 2005-07-01 13:07:37 +01:00
mtd [PATCH] ARM: 2780/1: AFS partition length calculation fix 2005-06-30 23:01:09 +01:00
net [PATCH] pm: more u32 vs. pm_message_t fixes 2005-07-07 18:23:43 -07:00
nubus
oprofile
parisc
parport [PATCH] PCI: clean up dynamic pci id logic 2005-07-01 13:35:50 -07:00
pci [PATCH] pm: more u32 vs. pm_message_t fixes 2005-07-07 18:23:43 -07:00
pcmcia
pnp
s390
sbus [SPARC]: bpp: remove sleep_on usage 2005-07-04 13:24:14 -07:00
scsi [PATCH] openfirmware: generate device table for userspace 2005-07-06 12:55:20 -07:00
serial [PATCH] openfirmware: generate device table for userspace 2005-07-06 12:55:20 -07:00
sh
sn
tc
telephony
usb
video [PATCH] pm: more u32 vs. pm_message_t fixes 2005-07-07 18:23:43 -07:00
w1
zorro
Kconfig
Makefile