OpenCloudOS-Kernel/samples
Emese Revfy 52cf25d0ab Driver core: Constify struct sysfs_ops in struct kobj_type
Constify struct sysfs_ops.

This is part of the ops structure constification
effort started by Arjan van de Ven et al.

Benefits of this constification:

 * prevents modification of data that is shared
   (referenced) by many other structure instances
   at runtime

 * detects/prevents accidental (but not intentional)
   modification attempts on archs that enforce
   read-only kernel data at runtime

 * potentially better optimized code as the compiler
   can assume that the const data cannot be changed

 * the compiler/linker move const data into .rodata
   and therefore exclude them from false sharing

Signed-off-by: Emese Revfy <re.emese@gmail.com>
Acked-by: David Teigland <teigland@redhat.com>
Acked-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-07 17:04:49 -08:00
..
hw_breakpoint hw-breakpoints: Use overflow handler instead of the event callback 2009-12-06 08:27:18 +01:00
kobject Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
kprobes sparc64: cheaper asm/uaccess.h inclusion 2009-08-16 18:25:53 -07:00
trace_events debugfs: Change debuhgfs directory of trace-events-sample.h 2009-09-15 09:50:48 -07:00
tracepoints const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
Kconfig Merge branch 'for-next' into for-linus 2009-12-07 18:36:35 +01:00
Makefile Merge commit 'perf/core' into perf/hw-breakpoint 2009-10-18 01:12:33 +02:00