[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/proc/kcore.c b/fs/proc/kcore.c
index adc2cd9..17f6e8f 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -31,7 +31,7 @@
static ssize_t read_kcore(struct file *, char __user *, size_t, loff_t *);
-struct file_operations proc_kcore_operations = {
+const struct file_operations proc_kcore_operations = {
.read = read_kcore,
.open = open_kcore,
};
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index 10d37bf..ff3b90b 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -47,7 +47,7 @@
}
-struct file_operations proc_kmsg_operations = {
+const struct file_operations proc_kmsg_operations = {
.read = kmsg_read,
.poll = kmsg_poll,
.open = kmsg_open,
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 4063fb3..7efa73d 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -172,7 +172,7 @@
return 0;
}
-struct file_operations proc_vmcore_operations = {
+const struct file_operations proc_vmcore_operations = {
.read = read_vmcore,
.open = open_vmcore,
};