diff options
authorEmese Revfy2010-01-18 19:58:23 -0600
committerGreg Kroah-Hartman2010-03-07 19:04:49 -0600
commit52cf25d0ab7f78eeecc59ac652ed5090f69b619e (patch)
tree031d1ffb3890bd69c0260c864c512e0be62ac05c /block/blk-sysfs.c
parent6c1733aca0b48db4d0e660d54976a1cca25b5eaf (diff)
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>
Diffstat (limited to 'block/blk-sysfs.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index e85442415db..2ae2cb3f362 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -450,7 +450,7 @@ static void blk_release_queue(struct kobject *kobj)
450 kmem_cache_free(blk_requestq_cachep, q); 450 kmem_cache_free(blk_requestq_cachep, q);
451} 451}
452 452
453static struct sysfs_ops queue_sysfs_ops = { 453static const struct sysfs_ops queue_sysfs_ops = {
454 .show = queue_attr_show, 454 .show = queue_attr_show,
455 .store = queue_attr_store, 455 .store = queue_attr_store,
456}; 456};