[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/coda/dir.c b/fs/coda/dir.c
index 54f76de..71f2ea6 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -82,7 +82,7 @@
.setattr = coda_setattr,
};
-struct file_operations coda_dir_operations = {
+const struct file_operations coda_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = coda_readdir,
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 146a991..7c26424 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -288,7 +288,7 @@
return err;
}
-struct file_operations coda_file_operations = {
+const struct file_operations coda_file_operations = {
.llseek = generic_file_llseek,
.read = coda_file_read,
.write = coda_file_write,
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index 1277149..214822b 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -36,7 +36,7 @@
.setattr = coda_setattr,
};
-struct file_operations coda_ioctl_operations = {
+const struct file_operations coda_ioctl_operations = {
.owner = THIS_MODULE,
.ioctl = coda_pioctl,
};
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 98c74fe..6c6771d 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -342,7 +342,7 @@
}
-static struct file_operations coda_psdev_fops = {
+static const struct file_operations coda_psdev_fops = {
.owner = THIS_MODULE,
.read = coda_psdev_read,
.write = coda_psdev_write,