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[PATCH] mark struct file_operations const 8

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Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Arjan van de Ven 2007-02-12 00:55:36 -08:00 • committed by Linus Torvalds
commit da7071d7e3
31 changed files with 51 additions and 51 deletions
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2
net/netrom/af_netrom.c
View file

@ -1335,7 +1335,7 @@ static int nr_info_open(struct inode *inode, struct file *file)
return seq_open(file, &nr_info_seqops);
}
static struct file_operations nr_info_fops = {
static const struct file_operations nr_info_fops = {
.owner = THIS_MODULE,
.open = nr_info_open,
.read = seq_read,

4
net/netrom/nr_route.c
View file

@ -934,7 +934,7 @@ static int nr_node_info_open(struct inode *inode, struct file *file)
return seq_open(file, &nr_node_seqops);
}
struct file_operations nr_nodes_fops = {
const struct file_operations nr_nodes_fops = {
.owner = THIS_MODULE,
.open = nr_node_info_open,
.read = seq_read,
@ -1018,7 +1018,7 @@ static int nr_neigh_info_open(struct inode *inode, struct file *file)
return seq_open(file, &nr_neigh_seqops);
}
struct file_operations nr_neigh_fops = {
const struct file_operations nr_neigh_fops = {
.owner = THIS_MODULE,
.open = nr_neigh_info_open,
.read = seq_read,