[PATCH] Make most file operations structs in fs/ const
This is a conversion to make the various file_operations structs in fs/
const. Basically a regexp job, with a few manual fixups
The goal is both to increase correctness (harder to accidentally write to
shared datastructures) and reducing the false sharing of cachelines with
things that get dirty in .data (while .rodata is nicely read only and thus
cache clean)
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/char_dev.c b/fs/char_dev.c
index b53dffa..4e1b849 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -406,7 +406,7 @@
* is contain the open that then fills in the correct operations
* depending on the special file...
*/
-struct file_operations def_chr_fops = {
+const struct file_operations def_chr_fops = {
.open = chrdev_open,
};