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[PATCH] mark struct file_operations const 5

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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 00:55:34 -08:00 • committed by Linus Torvalds
commit d54b1fdb1d
45 changed files with 89 additions and 89 deletions
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2
drivers/pci/hotplug/cpqphp_sysfs.c
View file

@ -202,7 +202,7 @@ static int release(struct inode *inode, struct file *file)
return 0;
}
static struct file_operations debug_ops = {
static const struct file_operations debug_ops = {
.owner = THIS_MODULE,
.open = open,
.llseek = lseek,

4
drivers/pci/proc.c
View file

@ -287,7 +287,7 @@ static int proc_bus_pci_release(struct inode *inode, struct file *file)
}
#endif /* HAVE_PCI_MMAP */
static struct file_operations proc_bus_pci_operations = {
static const struct file_operations proc_bus_pci_operations = {
.llseek = proc_bus_pci_lseek,
.read = proc_bus_pci_read,
.write = proc_bus_pci_write,
@ -456,7 +456,7 @@ static int proc_bus_pci_dev_open(struct inode *inode, struct file *file)
{
return seq_open(file, &proc_bus_pci_devices_op);
}
static struct file_operations proc_bus_pci_dev_operations = {
static const struct file_operations proc_bus_pci_dev_operations = {
.open = proc_bus_pci_dev_open,
.read = seq_read,
.llseek = seq_lseek,